Relevant bibliographies by topics / Habitat features

Academic literature on the topic 'Habitat features'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Habitat features"

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MATSUMOTO, Masamichi, and Syuichirou TAGANE. "Habitat features of Viola orientalis." Journal of the Japanese Society of Revegetation Technology 32, no. 2 (2006): 355–60. http://dx.doi.org/10.7211/jjsrt.32.355.

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Finch, Domhnall, Henry Schofield, and Fiona Mathews. "Habitat Associations of Bats in an Agricultural Landscape: Linear Features Versus Open Habitats." Animals 10, no. 10 (October 12, 2020): 1856. http://dx.doi.org/10.3390/ani10101856.

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1. Bats are important components of agricultural ecosystems. However, little is known about the extent to which bats use linear features when foraging and commuting in agricultural settings, when compared to the interior of fields. 2. As part of a large-scale citizen science project, bat detectors were placed in the centre of agricultural fields (arable and pasture) and along linear features (intensively managed hedgerows, sympathetically managed hedgerows and treelines). 3. Our results show that all 10 of the bat species groups identified were found both along linear features and in the middle of agricultural fields. Of the five species groups analysed further, all had significantly more bat activity along linear features compared to the middle of fields, except for Nyctalus noctula. However, our results showed that 29% of calls from Rhinolophus ferrumequinum were recorded in the middle of agricultural fields, compared to only 10% for Pipistrellus pipistrellus. Bat activity was more likely to be associated with treelines compared to other linear feature types. 4. Our results highlight the importance of linear feature management to bat conservation, but also the need to consider field centres during survey design and Environmental Impact Assessments.
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Zhang, Bing, Bingxian Wu, Daode Yang, Xiaqiu Tao, Mu Zhang, Shousheng Hu, Jun Chen, and Ming Zheng. "Habitat association in the critically endangered Mangshan pit viper (Protobothrops mangshanensis), a species endemic to China." PeerJ 8 (July 1, 2020): e9439. http://dx.doi.org/10.7717/peerj.9439.

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Habitat directly affects the population size and geographical distribution of wildlife species, including the Mangshan pit viper (Protobothrops mangshanensis), a critically endangered snake species endemic to China. We searched for Mangshan pit viper using randomly arranged transects in their area of distribution and assessed their habitat association using plots, with the goals of gaining a better understanding of the habitat features associated with P. mangshanensis detection and determining if the association with these features varies across season. We conducted transect surveys, found 48 individual snakes, and measured 11 habitat variables seasonally in used and random plots in Hunan Mangshan National Nature Reserve over a period of 5 years (2012–2016). The important habitat variables for predicting Mangshan pit viper detection were fallen log density, shrub density, leaf litter cover, herb cover and distance to water. In spring, summer and autumn, Mangshan pit viper detection was always positively associated with fallen log density. In summer, Mangshan pit viper detection was related to such habitats with high canopy cover, high shrub density and high herb cover. In autumn, snakes generally occurred in habitats near water in areas with high fallen log density and tall shrubs height. Our study is the first to demonstrate the relationship between Mangshan pit viper detection and specific habitat components. Mangshan pit viper detection was associated with habitat features such as with a relatively high fallen log density and shrub density, moderately high leaf litter cover, sites near stream, and with lower herb cover. The pattern of the relationship between snakes and habitats was not consistent across the seasons. Identifying the habitat features associated with Mangshan pit viper detection can better inform the forestry department on managing natural reserves to meet the habitat requirements for this critically endangered snake species.
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Groff, Luke A., Aram J. K. Calhoun, and Cynthia S. Loftin. "Amphibian terrestrial habitat selection and movement patterns vary with annual life-history period." Canadian Journal of Zoology 95, no. 6 (June 2017): 433–42. http://dx.doi.org/10.1139/cjz-2016-0148.

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Identification of essential habitat is a fundamental component of amphibian conservation; however, species with complex life histories frequently move among habitats. To better understand dynamic habitat use, we evaluated Wood Frog (Lithobates sylvaticus (LeConte, 1825)) habitat selection and movement patterns during the spring migration and foraging periods and described the spatiotemporal variability of habitats used during all annual life-history periods. We radio-tracked 71 frogs in Maine during 2011–2013 and evaluated spring migration, foraging activity center (FAC), and within-FAC habitat selection. Telemetered frogs spent the greatest percentage of each field season in hibernacula (≥54.4%), followed by FACs (≥25.5%), migration habitat (≥16.9%), and breeding sites (≥4.5%). FACs ranged 49 – 1 335 m2 (568.0 ± 493.4 m2) and annual home ranges spanned 1 413 – 32 165 m2 (11 780.6 ± 12 506.1 m2). During spring migration, Wood Frogs exhibited different movement patterns (e.g., turn angles), selected different habitat features, and selected habitat features less consistently than while occupying FACs, indicating that the migration and foraging periods are ecologically distinct. Habitat-use studies that do not discriminate among annual life-history periods may obscure true ecological relationships and fail to identify essential habitat necessary for sustaining amphibian populations.
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Saniga, M. "Habitat features of the capercaillie (Tetrao urogallus) leks in the West Carpathians." Journal of Forest Science 48, No. 9 (May 22, 2019): 415–24. http://dx.doi.org/10.17221/11903-jfs.

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Habitat characteristics of 43 capercaillie (Tetrao urogallus) leks were studied in the mountains of Central Slovakia (West Carpathians) in 1984–2002. Macro-habitat was described with respect to topography and succession stage. Micro-habitat was described with respect to forest type and forest stand structure. Twenty-seven out of forty-three display grounds were situated in the upper half of the lateral ridges. Sixteen leks were located on hills of the lateral ridges (slope < 10%). All the leks were situated in old succession stages of the forest (80–200 years old). Twenty-seven display grounds were located in natural forests, sixteen leks were situated in man-managed stands more than 80 years old. Leks were situated in a variety of forest types with overstorey tree-density between 400–1,050 stems per ha. Distribution of leks was limited above all by macro-habitat characteristics (elevated sites, old stands). Age-space structure seemed to be a significant micro-habitat feature (preference of multi-layered stands).
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Egerer, Monika, Jacob Cecala, and Hamutahl Cohen. "Wild Bee Conservation within Urban Gardens and Nurseries: Effects of Local and Landscape Management." Sustainability 12, no. 1 (December 30, 2019): 293. http://dx.doi.org/10.3390/su12010293.

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Across urban environments, vegetated habitats provide refuge for biodiversity. Gardens (designed for food crop production) and nurseries (designed for ornamental plant production) are both urban agricultural habitats characterized by high plant species richness but may vary in their ability to support wild pollinators, particularly bees. In gardens, pollinators are valued for crop production. In nurseries, ornamental plants rarely require pollination; thus, the potential of nurseries to support pollinators has not been examined. We asked how these habitats vary in their ability to support wild bees, and what habitat features relate to this variability. In 19 gardens and 11 nurseries in California, USA, we compared how local habitat and landscape features affected wild bee species abundance and richness. To assess local features, we estimated floral richness and measured ground cover as proxies for food and nesting resources, respectively. To assess landscape features, we measured impervious land cover surrounding each site. Our analyses showed that differences in floral richness, local habitat size, and the amount of urban land cover impacted garden wild bee species richness. In nurseries, floral richness and the proportion of native plant species impacted wild bee abundance and richness. We suggest management guidelines for supporting wild pollinators in both habitats.
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Jeffers, J. N. R. "Characterization of river habitats and prediction of habitat features using ordination techniques." Aquatic Conservation: Marine and Freshwater Ecosystems 8, no. 4 (July 1998): 529–40. http://dx.doi.org/10.1002/(sici)1099-0755(199807/08)8:4<529::aid-aqc301>3.0.co;2-9.

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Pavignano, Ivana, Cristina Giacoma, and Sergio Castellano. "A multivariate analysis of amphibian habitat determinants in north western Italy." Amphibia-Reptilia 11, no. 4 (1990): 311–24. http://dx.doi.org/10.1163/156853890x00014.

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AbstractThe distribution of Bufo bufo, Rana esculenta complex, Rana dalmatina, Hyla arborea, Triturus carnifex and Triturus vulgaris were studied in 61 ponds in NW Italy, in relation to a number of specific habitat features. Multivariate analysis identifies those habitat parameters which classify ponds into characteristic habitat groups. Several multivariate statistical tests were carried out to identify habitat features characteristic of each species and to delineate ecological factors that influence amphibian distributions and size of breeding populations. Variables scored at each pond were: extent of aquatic vegetational cover, age of the pond, terrestrial habitats occurring near the ponds, degree of human interference, surface areas, maximum depth, chemical water factors (such as pH and water hardness). The first four of these parameters influenced breeding population presence of R. dalmatina, H. arborea, T. vulgaris and T. cristatus significantly. Densities of H. arborea, R. dalmatina, B. bufo and R. esculenta were apparently unaffected by any of these parameters; these species seem to colonize available habitats almost at random.
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Mohamed, Hassan, Kazuo Nadaoka, and Takashi Nakamura. "Semiautomated Mapping of Benthic Habitats and Seagrass Species Using a Convolutional Neural Network Framework in Shallow Water Environments." Remote Sensing 12, no. 23 (December 7, 2020): 4002. http://dx.doi.org/10.3390/rs12234002.

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Benthic habitats are structurally complex and ecologically diverse ecosystems that are severely vulnerable to human stressors. Consequently, marine habitats must be mapped and monitored to provide the information necessary to understand ecological processes and lead management actions. In this study, we propose a semiautomated framework for the detection and mapping of benthic habitats and seagrass species using convolutional neural networks (CNNs). Benthic habitat field data from a geo-located towed camera and high-resolution satellite images were integrated to evaluate the proposed framework. Features extracted from pre-trained CNNs and a “bagging of features” (BOF) algorithm was used for benthic habitat and seagrass species detection. Furthermore, the resultant correctly detected images were used as ground truth samples for training and validating CNNs with simple architectures. These CNNs were evaluated for their accuracy in benthic habitat and seagrass species mapping using high-resolution satellite images. Two study areas, Shiraho and Fukido (located on Ishigaki Island, Japan), were used to evaluate the proposed model because seven benthic habitats were classified in the Shiraho area and four seagrass species were mapped in Fukido cove. Analysis showed that the overall accuracy of benthic habitat detection in Shiraho and seagrass species detection in Fukido was 91.5% (7 classes) and 90.4% (4 species), respectively, while the overall accuracy of benthic habitat and seagrass mapping in Shiraho and Fukido was 89.9% and 91.2%, respectively.
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McSorley, Robert. "Effect of forest and field habitat features on abundance of genera in nematode assemblages." Nematology 15, no. 8 (2013): 947–56. http://dx.doi.org/10.1163/15685411-00002733.

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Abundances of nematode genera were examined in several forest and field habitats located in close proximity in Florida, USA. Effects of selected habitat features were also evaluated, such as tree type, management and presence of litter, grasses or invasive species. Of 37 common taxa evaluated, ten were more abundant in forest and ten in field habitats. Several genera includingAcrobeloides,AphelenchoidesandMesocriconemawere common in all habitats. Light management, consisting of mowing of grasses, negatively affected 19 taxa. More genera appeared adapted to closed forest over open forest, and most of these were more common in plots with oak trees or oak litter than in plots with pine. Numbers ofParatylenchus,PlectusandXiphinemawere further increased by the presence of herbaceous plants on the forest floor. When invasive elephantgrass (Pennisetum purpureum) was included in plots with other grasses, numbers of eight genera that typically were common in grass plots were further increased.Alaimus,CervidellusandWilsonemawere negatively affected by the invasive elephantgrass. Most of the nine genera in guild Ba2 were more abundant in either forest (Acrobeles,Cervidellus,Plectus,Wilsonema) or grass (Eucephalobus,Zeldia) habitats, whileAcrobeloideswas common and two genera were rare in all habitats. The effects of habitats and habitat features on many different nematode taxa add to our growing knowledge of the ecological habits of free-living nematodes.
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Dissertations / Theses on the topic "Habitat features"

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Bonnett, Martin Lee. "Critical habitat features of giant kokopu, Galaxias argenteus (Gmelin 1789)." Thesis, University of Canterbury. Zoology, 2000. http://hdl.handle.net/10092/6892.

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The giant kokopu (Galaxias argenteus) is the largest of the galaxiid fishes, and is endemic to New Zealand. Some landlocked (non-migratory) populations exist, but giant kokopu are normally diadromous, and juveniles make up a small part of the annual whitebait run. The species is now regarded as threatened, and its rarity has led to controversy over proposed changes to whitebait fishing regulations. Although exploitation of the juveniles may be limiting recruitment to adult populations, the perceived decline of giant kokopu has been attributed mostly to the loss and degradation of its habitat. In order to manage and conserve the species, the critical features of giant kokopu habitat need to be determined. Analysis of information from the New Zealand Freshwater Fisheries database, and from field surveys in Southland and along the western coast of the South Island, indicate that five habitat features are critical: the presence of instream cover, deep water, low water velocity, proximity to the sea, and overhead shade/riparian cover. These features were critical in both regions surveyed and for both juvenile and adult fish. The effects of different types of riparian and in stream cover were examined, but it appeared that the presence of some sort of cover was more important than its composition. Giant kokopu readily utilised artificially constructed habitat, which emphasised the importance of instream cover and low water velocity. Diet was investigated from the examination of the gut contents of 105 fish, and results compared to other published information. Giant kokopu are probably best described as opportunistic feeders, as they utilise a wide range of foods of both aquatic and terrestrial origin. Terrestrial components of the diet appear to be significant for giant kokopu, which may partly explain the importance of overhead shade and riparian cover in giant kokopu habitat. Giant kokopu have been found in a wide variety of water types around New Zealand, and are known to co-occur with 33 other native and introduced species of fish. It appears that they are more likely to occur in habitats where introduced brown trout (Salmo trutta) are absent, although the two species do sometimes co-occur and cannot be said to be mutually exclusive. Migrations of juvenile (whitebait) giant kokopu into freshwater probably occur mostly after the end of the whitebaiting season, and their capture may no longer be a serious conservation concern. The impact of commercial eel fishing on giant kokopu populations is difficult to determine, and there may well be both detrimental and beneficial effects. The conservation and management of giant kokopu will probably continue to be based upon management of their habitat, and these processes will be enhanced by the knowledge of the species' habitat requirements.
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Marshall, Livingston Sinclair Jr. "Survival of juvenile queen conch, Strombus gigas, in natural habitats: Impact of prey, predator and habitat features." W&M ScholarWorks, 1992. https://scholarworks.wm.edu/etd/1539616765.

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In this dissertation, I experimentally examine predation-induced mortality upon juvenile queen conch, Strombus gigas, and assess the importance of select habitat predator and conch characteristics affecting predation intensity. Experiments were conducted during the summer and early fall of 1987, 1988, 1990 and 1991 in seagrass beds and adjacent sand flats near Lee Stocking Island, Exuma Cays, Bahamas. These experiments indicate that various factors act interactively to produce habitat-specific mortality rates in queen conch due to predation. These include (1) habitat type, whereby seagrass beds offer some protection; (2) local population dynamics, such that populated seagrass beds appear to enhance conch survival; (3) population density in some seagrass beds, such that mortality is inversely density-dependent; (4) conch size, such that larger conch have higher survival rates, depending on the specific type of habitat; and (5) predation intensity and predator guilds, which likely differ across habitats, producing habitat-specific mortality rates. When integrated with complementary studies of queen conch trophodynamics, these results provide critical information regarding key ecological factors affecting conch survival. In particular, results from the hatchery-reared experiments demonstrate the potential use of hatchery-reared stocks in natural habitats, and hence a valuable option for enhancement of fishery stocks throughout the Caribbean. In general, the integration of results obtained in this dissertation, with complementary studies of queen conch trophodynamics, should provide valuable suggestions of queen conch habitats, densities and scales of patchiness producing highest survivorship and growth rates in nature.
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Gude, Andrew Greiff. "An Assessment of the Riparian-influenced Salmonid Habitat Features of Johnson Creek, Portland, Oregon." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/5232.

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Pacific salmon populations in Johnson Creek, Portland, Oregon have been adversely impacted by urbanization, and by residential and agricultural land development. f Ecological impacts include loss or depletion of riparian vegetation features which directly influence stream and associated salmonid ecology. This research examines the nearstream riparian zone's contribution to instream habitat complexity for anadromous salmonids in Johnson Creek. Visual surveys were conducted on over half the stream length. Five features were assessed to determine the extent of riparian influenced stream habitat including, overhead enclosure, overhanging vegetation, undercut banks, and large and small woody debris and root wads. The stream survey showed that areas of riparian-influenced habitat are spatially intermittent and present in areas of the least stream disturbance. Suitable riparian habitat is limited to locations where there is minimal riparian disturbance, property management, and channelization. I Although salmonid populations have been reduced, insufficient riparian influenced salmonid habitat features are not the primary limiting factor on salmon populations. Other factors such as pollution, sedimentation, hatchery fish introduction, low flows, inadequate food supplies, high stream temperatures, repress wild salmon populations.
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Stolarski, Jason Thomas. "Age and growth of Appalachian brook trout in relation to life-history and habitat features." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5482.

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Thesis (M.S.)--West Virginia University, 2007.
Title from document title page. Document formatted into pages; contains v, 93 p. : ill., map. Vita. Includes abstract. Includes bibliographical references.
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Davies, Jaime Selina. "Mapping deep-sea features in UK waters for use in marine protected area network design." Thesis, University of Plymouth, 2012. http://hdl.handle.net/10026.1/1200.

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With an increase in demand on deep-sea resources comes a need for appropriate and effective management of this ecosystem. The establishment of a representative network of deep-sea Marine Protected Areas offers one tool with which to address the conservation needs of the deep sea. While a number of deep-sea habitats have been identified as vulnerable to anthropogenic activities (e.g. cold-water coral reefs and sponge aggregations), poor knowledge of the distribution of these habitats hinders conservation efforts and network planning, and thus we need habitat maps. With improvements in acoustic data resolution acquired from the deep sea, and the ability to cover large areas rapidly, the use of acoustic techniques in mapping biological habitats is growing. Multibeam bathymetry and its derived terrain variables can potentially provide important information that can aid in the delineation and characterisation of biological communities. A necessary prelude to mapping is therefore the definition of biological assemblages for use as mapping units. Two megahabitat features (seamount and submarine canyons) were sampled using acoustic and ground-truthing to characterise and map the distribution of benthic assemblages. Species were identified as distinct morpho-types and catalogued, and still images quantitatively analysed. Standard multivariate community analysis was undertaken to define distinct faunal assemblage that may act as mapping units. Those clusters identified by the SIMPROF routine were taken against a set of criteria to reject/accept as robust assemblages that may be used as mapping units. Twenty two benthic assemblages or biotopes were defined from multivariate analysis of quantitative species data, 11 from the SW Approaches and 11 from Anton Dohrn Seamount, and a further one from video observations (SW Approaches). Taken against current definitions, 11 of these were considered as Vulnerable Marine Ecosystems (VME). Diversity was measured to compliment the comprehensive description of biotopes. The use of multivariate diversity indices proved better for comparing diversity of biotopes as it captures a more than one aspect of diversity of the community. Two biotopes were common to both megahabitat features, cold-water coral reef habitats, and those from Anton Dohrn Seamount were more diverse than from the SW Approaches. Modelling techniques were employed to test the relationship between biotopes and environmental and geophysical parameters, which may be used as surrogates to map VME. Generalised Additive Models of Vulnerable Marine Ecosystems revealed multibeam bathymetry and its derived parameters to be significant surrogate for mapping the distribution of some assemblages, particularly those that appear to be influenced by current regime; whilst not so well for those whose distribution is not so strongly current driven e.g. soft sediment communities. In terms of deep-sea mapping, the use of multibeam can prove a useful mapping tool if the resolution of the data is at an appropriate scale that will identify meso-scale geomorphological features, such as cliff-top mounds, that may act as proxies for occurrence of biotopes, but this relationship is still unclear. Surrogates were used to map VME across the seamount and submarine canyons, and full coverage maps were produced for all biotopes occurring on these megahabitat features.
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Dempsey, Alexandra C. "Global Evaluation of Platform-Top Sedimentary Features." NSUWorks, 2013. http://nsuworks.nova.edu/occ_stuetd/170.

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Remote sensing has transformed coral reef science in the last decades. It is now possible to audit reef health and geomorphology at global scale and very high spatial resolution. This work utilizes the vast and no-cost archive of imagery housed within Google Earth (GE). GE was used to interrogate the morphometric properties (size, shape, complexity, etc) of the components that combine to yield a reef environment (reef structures, sediment sheets, and so forth). The data populated a morphometric database for reefs globally that are partitioned by their architecture. The database has been investigated using information theory. The aim of the work is to identify whether motifs of carbonate platforms within these reef types are predictable on the basis of environmental parameters. The results are relevant to assess depositional patterns to develop rules for predicting how facies are distributed in modern systems and ancient reservoirs.
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Lange, Marc. "Abundance And Diversity Of Fish In Relation To Littoral And Shoreline Features." Thesis, University of Guelph, 1999. http://hdl.handle.net/10919/71522.

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The effects of small-scale shoreline residential development on littoral fish abundance and species richness was examined at three different scales of observation (within 122, 244, and 488 meters) in Lake Simcoe (Ontario, Canada). A mixed model regression was used to test for effects of development after accounting for seasonal and spatial variation in environmental variables known to affect distribution and abundance of fish. Fish were aggregated near single development structures, such as permanent docks, and repelled from other single structures, such as bank stabilisation. Shoreline developed with multiple features, such as docks combined with break walls, tended to be positively correlated with fish abundance but negatively correlated with species richness. Features such as docks and break walls combined with boathouses were generally associated with a decrease in both abundance and richness. Cluster analysis detected no consistent pattern of association between specific fish assemblages and residential development across the three scales of observation. Increased density and diversity of shoreline residential development tended to be associated with reduced fish abundance and species richness. The specific development features associated with these patterns change with the scale of observation, indicating that fish responded to proximally and distantly located habitat alterations.
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McCaffrey, Rachel. "Assessing Patterns of Abundance and the Influence of Habitat Features and Scale on Birds in an Urban Environment." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/194004.

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My doctoral research focused on birds in the urban environment of Tucson, Arizona. Urban environments present unique challenges and opportunities for ecological research and conservation, and my work illustrates these aspects. From 2003-2008, I coordinated the Tucson Bird Count (TBC), a citywide bird survey program conducted by volunteer birders. My work with the TBC suggests that citizen-scientists may represent a valuable resource for ecologists because they can collect data over large scales and/or time periods. However, the environmental changes induced by humans in urban areas can also have significant negative impacts on native wildlife. My research indicates that for many native bird species, these impacts can be reduced through the actions of individual homeowners, neighborhood groups, and city and regional planners and managers. In working to maintain these species, it is important to consider both the specific habitat features important for each species, as well as the scale at which the species respond to these features.
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Layman, Bruce Clare. "Role of Habitat Features and Chemical Cues in Substrate Selection by Blue Crab Megalopae: Evidence from Laboratory Experiments." W&M ScholarWorks, 1992. https://scholarworks.wm.edu/etd/1539617647.

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Morgado, Mariana Rodrigues. "Influence of social and land use features on urban avifauna." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/16426.

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Mestrado em Ecologia Aplicada
Urbanization is a worldwide phenomenon that affects biodiversity, which induces the need to conserve the urban areas. Urban ecosystems are defined by human activities, habitat infrastructures and vegetation components. Nevertheless, little is known about the processes underlying the spatial variation of urban bird communities. The aims of the present dissertation are (1) to investigate the relationship between avian diversity and abundance with land use and social features and (2) to study the vertical distribution of avian diversity, abundance and biomass in an urban environment. For this purpose, bird surveys by point counts were conducted during breeding season in eight neighbourhoods of Aveiro, Portugal. The data was analysed through descriptive analyses, statistical hypothesis testing and generalized linear models. Most of the studied neighbourhoods were dominated by omnivorous species, namely Columba livia and Passer domesticus. The results also show that species richness is higher in neighbourhoods furthest away from esplanades, with higher density of trees, building height and density, alongside low imperviousness, busy streets and human population density. Moreover, neighbourhoods furthest away from esplanades, showing higher building age, height and density, busy streets but lower human population density, hold higher avian abundance. Medium height levels exhibit higher bird diversity, abundance and biomass than both lower and higher height levels. These findings strongly suggest that focusing on a combination of local land use and social features, rather than single features, provide a better understanding of avian diversity and spatial structures of urban bird communities. Furthermore, due to the complexity of urban ecosystems, this investigation underlies the relevance of integrating social and urban planning researchers into urban ecological studies.
A urbanização é um fenómeno mundial que afeta a biodiversidade, o que induz a necessidade de conservar as áreas urbanas. Os ecossistemas urbanos são definidos pelas atividades humanas, infraestruturas do habitat e componentes vegetais. No entanto, pouco se sabe sobre os processos inerentes à variação espacial local de comunidades de aves urbanas. Os objetivos principais da presente dissertação consistem em (1) investigar a relação entre diversidade e abundância de aves, e fatores sociais e de uso do solo e (2) estudar a distribuição vertical da diversidade, abundância e biomassa de aves em ambiente urbano. Para este efeito foram realizados censos de avifauna por pontos durante a época de nidificação em oito zonas da cidade de Aveiro, Portugal. A análise de dados realizou-se com recurso a análise descritiva, testes de hipóteses e modelos lineares generalizados. Os resultados indicam que espécies omnívoras como Columba livia e Passer domesticus são espécies dominantes na maioria das zonas de Aveiro. Os resultados mostram ainda que a riqueza específica é mais alta em zonas localizadas a uma maior distância de esplanadas, em ruas com mais movimento e com maiores densidades tanto de árvores como de edifícios mais altos, bem como menor percentagem de impermeabilidade do solo e menor densidade de população humana residente. Adicionalmente, zonas com maior densidade de edifícios mais velhos, mas também de maior altura, menor densidade de população humana residente, com ruas de maior movimento e maior distância a esplanadas, suportam maior abundância de avifauna. Ainda, existe maior diversidade, abundância e biomassa de avifauna no nível médio de altura do que nos níveis baixo e alto. Estes resultados sugerem que a combinação de fatores sociais e de uso do solo locais, em detrimento da aplicação de fatores únicos, permitem uma melhor compreensão da biodiversidade e estruturas espaciais de comunidades de aves urbanas. Adicionalmente, devido à complexidade dos ecossistemas urbanos, é pertinente realçar a relevância de integrar investigadores das ciências sociais e de ordenamento do território em investigações de ecologia urbana.
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Books on the topic "Habitat features"

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Harvey, Sarah. Structural features of marten habitat. Wisconsin]: U.S. Dept. of Agriculture, North Central Research Station, Chequamegon-Nicolet National Forest, 2005.

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Marion, W. R. Establishing wildlife habitat features on phosphate mined lands. S.l: s.n, 1990.

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Long, Katherine S. Survey of habitat-related channel features and structures in tailwaters. Vicksburg, Miss: U.S. Army Engineer Waterways Experiment Station, 1997.

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Milton, G. Randy. Relationships of songbirds and small mammals to habitat features on plantation and natural regeneration sites. Antigonish, N.S: St. Mary's River Forestry-Wildlife Project, Canadian Institute of Forestry, c/o N.S. Dept. of Natural Resources, 1990.

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Ramos, Carlos. Quantification of stream channel morphological features: Recommended procedures for use in watershed analysis and TFW ambient monitoring. [Olympia, Wash.?: The Commission?, 1996.

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Senecal, Anna C. Variations in physical habitat features and small fish assemblages during the summer months in the Powder River, Wyoming: Report of preliminary field season, summer 2007. Laramie, Wyo: U.S. Geological Survey, Wyoming Cooperative Fish and Wildlife Research Unit, 2007.

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Tatarenko, Valeriy, Valeriy Romeyko, and Ol'ga Lyapina. Fundamentals of occupational safety in the technosphere. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/981857.

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The textbook contains systematized information on the specific features of the life safety of the working population engaged in labor activity in an artificial habitat-the technosphere. The article presents the current provisions of the integrated methodology of technosphere safety, the legal foundations of modern legislation and regulatory regulation in this area, information about the leading dangerous and harmful production factors, the main directions of preventing the risks of occupational injuries and occupational morbidity of employees with the implementation of economic mechanisms for managing the safety of working conditions in organizations. Meets the requirements of the federal state educational standards of higher education of the latest generation. For undergraduate students studying in the direction of training "Technosphere safety", as well as specialists in the field of labor protection and social insurance.
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Fowler, Sarah L. Investigation into the extent of bait collection and its impacts on features of conservation interest for birds and intertidal species and habitats within the Solent and Poole Bay natural area: Final report to English Nature. Newbury: Nature Bureau Ltd., 2002.

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Peter, Harris. Seafloor Geomorphology As Benthic Habitat: GeoHab Atlas of Seafloor Geomorphic Features and Benthic Habitats. Elsevier Science & Technology Books, 2019.

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Seafloor Geomorphology As Benthic Habitat Geohab Atlas Of Seafloor Geomorphic Features And Benthic Habitats. Elsevier, 2011.

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Book chapters on the topic "Habitat features"

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Wells, Randall S. "Common Bottlenose Dolphin Foraging: Behavioral Solutions that Incorporate Habitat Features and Social Associates." In Ethology and Behavioral Ecology of Odontocetes, 331–44. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16663-2_15.

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Szoszkiewicz, Krzysztof, Andrea Buffagni, John Davy-Bowker, Jacek Lesny, Bogdan H. Chojnicki, Janina Zbierska, Ryszard Staniszewski, and Tomasz Zgola. "Occurrence and variability of River Habitat Survey features across Europe and the consequences for data collection and evaluation." In The Ecological Status of European Rivers: Evaluation and Intercalibration of Assessment Methods, 267–80. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-5493-8_19.

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Erba, Stefania, Andrea Buffagni, Nigel Holmes, Mattie O’Hare, Peter Scarlett, and Alberta Stenico. "Preliminary testing of River Habitat Survey features for the aims of the WFD hydro-morphological assessment: an overview from the STAR Project." In The Ecological Status of European Rivers: Evaluation and Intercalibration of Assessment Methods, 281–96. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-5493-8_20.

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Record, Sydne, Kyla M. Dahlin, Phoebe L. Zarnetske, Quentin D. Read, Sparkle L. Malone, Keith D. Gaddis, John M. Grady, et al. "Remote Sensing of Geodiversity as a Link to Biodiversity." In Remote Sensing of Plant Biodiversity, 225–53. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33157-3_10.

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AbstractTwo common approaches to conserving biodiversity are conserving the actors (species) and conserving the stage (habitat). Many management efforts focus on conserving the actors, but a major challenge to this strategy is uncertainty surrounding how species’ geographic ranges might shift in response to global change, including climate and land use change. The Nature Conservancy has moved to conserving the stage, with the aim of maintaining the processes that generate and support biodiversity. This strategy requires knowing how biodiversity responds to geodiversity—the abiotic features and processes that define the stage. Here we explore how remote sensing illuminates the relationship between biodiversity and geodiversity. We introduce a variety of geodiversity measures and discuss how they can be combined with biodiversity data. We then explore the relationship between biodiversity and geodiversity with tree biodiversity data from the US Forest Inventory and Analysis Program and geodiversity data from the Shuttle Radar Topography Mission as a case study and proof of concept. We find that whereas beta diversity was not well explained by geodiversity, both alpha and gamma diversities were positively related to geodiversity. We also outline the challenges and opportunities of using remote sensing to understand the relationship between biodiversity and geodiversity.
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Sprocati, Anna Rosa, Chiara Alisi, Giada Migliore, Paola Marconi, and Flavia Tasso. "Sustainable Restoration Through Biotechnological Processes: A Proof of Concept." In Microorganisms in the Deterioration and Preservation of Cultural Heritage, 235–61. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69411-1_11.

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AbstractAn understanding of the different microbial constellations or microbiomes, which every habitat and every organism harbor, will be the key to addressing many of the challenges humanity will face in the twenty-first century. Such comprehension could launch several innovations relating to natural and cultural capital, including historical and artistic heritage. In relation to cultural heritage, microorganisms are mainly known through their role as deteriogens, but the features creating damage can be exploited positively, attaining more sustainable restoration strategies, in accordance with the principles of compatibility and retreatability deriving from reflections on the Cultural Heritage inspired by the Charter of Venice (International charter for the Conservation and restoration of monument and sites (the Venice Chart 1964). In: ICOMOS, IInd International Congress of Architects and Technicians of Historic Monuments, 1964) onwards. In this article, we show a series of case studies, using both wild-type microorganisms and plant-based extracts, providing a comprehensive proof of concept of the feasibility of biotechnological solutions for a more sustainable restoration strategy, to replace the products in use which are often dangerous for operators, aggressive for works of art and no longer compatible with the environment. The overview of the case studies presented, many of which are still unpublished, responds to the need to go beyond the state of the art and has entirely sprung from suggestions by restorers, interested in learning about potential innovations and strongly determined to introduce non-toxic products in their daily work. In this perspective, the case studies dealt with two topics: bio-cleaning and disinfection. Noteworthy results were obtained on a platform of different types of artworks and different materials with compatible, harmless and selective products.
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Kawarabayasi, Yutaka. "Acido- and Thermophilic Microorganisms: Their Features, and the Identification of Novel Enzymes or Pathways." In Cellular Origin, Life in Extreme Habitats and Astrobiology, 297–313. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6488-0_12.

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Olenin, Sergej, and Erkki Leppäkoski. "Non-native animals in the Baltic Sea: alteration of benthic habitats in coastal inlets and lagoons." In Biological, Physical and Geochemical Features of Enclosed and Semi-enclosed Marine Systems, 233–43. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-0912-5_24.

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Krause, Jochen. "Conservation features: Sensitive species and habitats in the German Exclusive Economic Zone." In Ecological Research at the Offshore Windfarm alpha ventus, 39–44. Wiesbaden: Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-02462-8_6.

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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by Anthony R. Wilbur and Michael W. Pentony. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch22.

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<em>Abstract</em> .—New England aquatic, estuarine, and marine environments are highly variable and present distinct habitat features that support a number of commercial, recreational, and nontarget organisms. The heterogeneous environmental conditions found throughout New England provide important habitat characteristics for the reproduction, development, growth, feeding, and sustainability of fishery resources. Organisms have specific ontogenetic requirements that demonstrate their evolutionary adaptation to particular riverine, inshore, and offshore habitats. Habitat alteration and disturbance occur due to natural processes and human activities. Human-induced chemical, biological, and physical threats to habitat can have direct and indirect effects on local fish and mollusk populations. Increases in coastal development and humangenerated pollutants entering the environment are major threats to marine and aquatic habitats and are a result of increasing human population. Human activities and direct habitat alteration (e.g., hydrologic modifications) can disrupt environmental processes and conditions, and pollutants are discharged from a variety of nonpoint and point sources including runoff and industrial discharge, respectively. The sustainability of fishery resources in the New England region depends upon the protection of essential fish habitat. This protection includes identifying and understanding all potential nonfishing threats, point and nonpoint pollutant sources, and anthropogenic activities and impacts.
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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by Anthony R. Wilbur and Michael W. Pentony. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch22.

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<em>Abstract</em> .—New England aquatic, estuarine, and marine environments are highly variable and present distinct habitat features that support a number of commercial, recreational, and nontarget organisms. The heterogeneous environmental conditions found throughout New England provide important habitat characteristics for the reproduction, development, growth, feeding, and sustainability of fishery resources. Organisms have specific ontogenetic requirements that demonstrate their evolutionary adaptation to particular riverine, inshore, and offshore habitats. Habitat alteration and disturbance occur due to natural processes and human activities. Human-induced chemical, biological, and physical threats to habitat can have direct and indirect effects on local fish and mollusk populations. Increases in coastal development and humangenerated pollutants entering the environment are major threats to marine and aquatic habitats and are a result of increasing human population. Human activities and direct habitat alteration (e.g., hydrologic modifications) can disrupt environmental processes and conditions, and pollutants are discharged from a variety of nonpoint and point sources including runoff and industrial discharge, respectively. The sustainability of fishery resources in the New England region depends upon the protection of essential fish habitat. This protection includes identifying and understanding all potential nonfishing threats, point and nonpoint pollutant sources, and anthropogenic activities and impacts.
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Conference papers on the topic "Habitat features"

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Coupal, Brian, and Paula Bentham. "If You Build It, Will They Come? Caribou Habitat Restoration for Pipeline Projects." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33577.

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The federal Recovery Strategy for the Woodland Caribou (Rangifer tarandus caribou), Boreal Population in Canada, identifies coordinated actions to reclaim woodland caribou habitat as a key step to meeting current and future caribou population objectives. Actions include restoring industrial landscape features such as roads, seismic lines, pipelines, cut-lines, and cleared areas in an effort to reduce landscape fragmentation and the changes in caribou population dynamics associated with changing predator-prey dynamics in highly fragmented landscapes. Reliance on habitat restoration as a recovery action within the federal Recovery Strategy is high, identifying 65% undisturbed habitat in a caribou range as the threshold to providing a 60% chance that a local population will be self-sustaining. In alignment with the federal Recovery Strategy, Alberta’s Provincial Woodland Caribou Policy identifies habitat restoration as a critical component of long-term caribou habitat management. Habitat restoration initiatives of Alberta’s historical industrial footprint within caribou ranges began in 2001 and have largely focused on linear corridors, including pipelines. Initiatives include revegetation treatments, access control programs and studies, and restricting the growth of plant species that are favourable to moose and deer, the primary prey for wolves. Habitat restoration for pipelines also includes pre-construction planning to reduce disturbance and create line-of-sight breaks, and construction techniques that promote natural vegetation recovery. Lessons learned from habitat restoration programs implemented on pipeline projects in northeastern Alberta will be shared as an opportunity to improve common understanding of restoration techniques, the barriers to implementation, and potential outcomes.
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Buddenhagen, Christopher, Wayt Thomas, and Austin Mast. "A first look at diversification of Beaksedges (tribe Rhynchosporeae: Cyperaceae) in habitat, pollination, and photosynthetic features." In The Fifth International Conference on the Comparative Biology of Monocotyledons. The New York Botanical Gardens Press, 2017. http://dx.doi.org/10.21135/893275341.002.

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Chaudhury, Baishali, Mu Zhou, Dmitry B. Goldgof, Lawrence O. Hall, Robert A. Gatenby, Robert J. Gillies, and Jennifer S. Drukteinis. "Identifying metastatic breast tumors using textural kinetic features of a contrast based habitat in DCE-MRI." In SPIE Medical Imaging, edited by Lubomir M. Hadjiiski and Georgia D. Tourassi. SPIE, 2015. http://dx.doi.org/10.1117/12.2081386.

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Chen, Yongming, Ping Lin, and Shanchao Jiang. "Convolutional Neural Networks for Comprehending Geographical Features of International Important Ramsar Wetland Ecological Habitat Scenes in China." In 2017 10th International Symposium on Computational Intelligence and Design (ISCID). IEEE, 2017. http://dx.doi.org/10.1109/iscid.2017.69.

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Petrone, A., L. La Rosa, M. Marconi, I. Zappacosta, P. M. Pedroni, I. Rainaldi, E. Sordini, et al. "A Risk-Based Methodology for Assessing Economical Impacts From Oil Spills: A Screening Matrix Based on Habitat Features and Operational Context." In SPE International Conference on Health, Safety, and Environment. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/168414-ms.

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Chen, Di, Yexiang Xue, Daniel Fink, Shuo Chen, and Carla P. Gomes. "Deep Multi-species Embedding." In Twenty-Sixth International Joint Conference on Artificial Intelligence. California: International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/509.

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Understanding how species are distributed across landscapes over time is a fundamental question in biodiversity research. Unfortunately, most species distribution models only target a single species at a time, despite strong ecological evidence that species are not independently distributed. We propose Deep Multi-Species Embedding (DMSE), which jointly embeds vectors corresponding to multiple species as well as vectors representing environmental covariates into a common high-dimensional feature space via a deep neural network. Applied to bird observational data from the citizen science project eBird, we demonstrate how the DMSE model discovers inter-species relationships to outperform single-species distribution models (random forests and SVMs) as well as competing multi-label models. Additionally, we demonstrate the benefit of using a deep neural network to extract features within the embedding and show how they improve the predictive performance of species distribution modelling. An important domain contribution of the DMSE model is the ability to discover and describe species interactions while simultaneously learning the shared habitat preferences among species. As an additional contribution, we provide a graphical embedding of hundreds of bird species in the Northeast US.
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Wang, Long, Sumit Gupta, Kenneth J. Loh, and Helen S. Koo. "Nanocomposite Fabric Sensors for Monitoring Inflatable and Deployable Space Structures." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9029.

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Inflatable deployable structures are practical and promising candidates for serving various aerospace missions, for instance, as solar sails, antennas, space suits, and especially Lunar and Mars habitats. These structures feature flexible composites folded at high packing efficiency, which can drastically reduce launch costs. However, they can also be damaged due to the harsh extraterrestrial operating conditions, which can propagate to cause catastrophic mission failure and endanger crew safety. Therefore, it is imperative to integrate a robust structural health monitoring (SHM) system, so that damage and faults can be detected for ensuring their safe and reliable operations. While a variety of SHM technologies have been developed for monitoring conventional, rigid, structural systems, they are faced with challenges when used for these unconventional flexible and inflatable systems. Therefore, a flexible carbon nanotube-fabric nanocomposite sensor is proposed in this study for monitoring the integrity of inflatable space structures. In particular, CNT-based thin films were fabricated by spraying and then integrated with flexible fabric to form the lightweight sensor. By coupling fabric sensors with an electrical impedance tomography (EIT) algorithm, the fabric’s distribution of spatial resistivity can be mapped using only electrical measurements obtained along the material’s boundaries. The severity and location of localized pressure and impact damage can be captured by observing changes in the EIT-calculated resistivity maps. They can be embedded in inflatable habitat structures to detect and locate abnormally high pressure regions and impact damage.
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Kapitonova, О. А. "Genus bladderwort (Utricularia L., Lentibulariaceae Rich.) in Western Siberia: species composition, distribution, ecological features." In Problems of studying the vegetation cover of Siberia. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-927-3-2020-16.

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The growth of 6 species of the genus Utricularia has been shown for the territory of Western Siberia: U. vulgaris, U. macrorhiza, U. australis, U. minor, U. intermedia and U. ochroleuca. The distribution of species in the region is discussed, and their habitats are characterized. Special attention is paid to the diagnostic signs of bladderworts. It was noted that three of the six species indicated for Western Siberia (U. macrorhiza, U. australis, U. ochroleuca) have single locations within the region.
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Regniers, O., L. Bombrun, I. Ilea, V. Lafon, and C. Germain. "Classification of oyster habitats by combining wavelet-based texture features and polarimetric SAR descriptors." In IGARSS 2015 - 2015 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2015. http://dx.doi.org/10.1109/igarss.2015.7326674.

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Ballado, Alejandro H., Jose B. Lazaro, Eric Joshua A. Aquino, Alliezza Jayne B. Balaga, Anjon S. Hernandez, and Meo Vincent C. Caya. "Water Penetrating Sensor for Feature Extraction of Benthic Habitat using Remotely Sensed Information in Shallow Water." In 2016 6th IEEE International Conference on Control System, Computing and Engineering (ICCSCE). IEEE, 2016. http://dx.doi.org/10.1109/iccsce.2016.7893621.

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Reports on the topic "Habitat features"

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Gude, Andrew. An Assessment of the Riparian-influenced Salmonid Habitat Features of Johnson Creek, Portland, Oregon. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.7104.

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Geisthardt, Eric, Burton Suedel, and John Janssen. Monitoring the Milwaukee Harbor breakwater : an Engineering With Nature® (EWN®) demonstration project. Engineer Research and Development Center (U.S.), March 2021. http://dx.doi.org/10.21079/11681/40022.

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The US Army Corps of Engineers (USACE) maintains breakwaters in Milwaukee Harbor. USACE’s Engineering With Nature® (EWN®) breakwater demonstration project created rocky aquatic habitat with cobbles (10–20 cm) covering boulders (6–8 metric tons) along a 152 m section. A prolific population of Hemimysis anomala, an introduced Pontocaspian mysid and important food source for local pelagic fishes, was significantly (p < .05) more abundant on cobbles versus boulders. Food-habits data of alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax) provided evidence that H. anomala were a common prey item. Night surveys and gill netting confirmed O. mordax preferred foraging on the cobbles (p < .05) and consumed more H. anomala than at the reference site (p < .05). H. anomala comprised a significant portion of the diets of young-of-the-year (YOY) yellow perch (Perca flavescens), YOY largemouth bass (Micropterus salmoides), and juvenile rock bass (Ambloplites rupestris) caught on the breakwater. The natural features’ construction on the breakwater increased the available habitat for this benthopelagic macroinvertebrate and created a novel ecosystem benefiting forage fish and a nursery habitat benefiting nearshore game fish juveniles. These data will encourage the application of EWN concepts during structural repairs at other built navigation infrastructure.
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Berkowitz, Jacob, Nathan Beane, Kevin Philley, Nia Hurst, and Jacob Jung. An assessment of long-term, multipurpose ecosystem functions and engineering benefits derived from historical dredged sediment beneficial use projects. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41382.

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The beneficial use of dredged materials improves environmental outcomes while maximizing navigation benefits and minimizing costs, in accordance with the principles of the Engineering With Nature® (EWN) initiative. Yet, few studies document the long-term benefits of innovative dredged material management strategies or conduct comprehensive life-cycle analysis because of a combination of (1) short monitoring time frames and (2) the paucity of constructed projects that have reached ecological maturity. In response, we conducted an ecological functional and engineering benefit assessment of six historic (>40 years old) dredged material–supported habitat improvement projects where initial postconstruction beneficial use monitoring data was available. Conditions at natural reference locations were also documented to facilitate a comparison between natural and engineered landscape features. Results indicate the projects examined provide valuable habitat for a variety of species in addition to yielding a number of engineering (for example, shoreline protection) and other (for example, carbon storage) benefits. Our findings also suggest establishment of ecological success criteria should not overemphasize replicating reference conditions but remain focused on achieving specific ecological functions (that is, habitat and biogeochemical cycling) and engineering benefits (that is, storm surge reduction, navigation channel maintenance) achievable through project design and operational management.
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Harris, P. T., and M. Macmillan-Lawler. Arctic Ocean seafloor geomorphic features and benthic habitats - relevance for conservation and marine spatial planning. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/305855.

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Marcot, Bruce G., Michael J. Wisdom, Hiram W. Li, and Gonzalo C. Castillo. Managing for featured, threatened, endangered, and sensitive species and unique habitats for ecosystem sustainability. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1994. http://dx.doi.org/10.2737/pnw-gtr-329.

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