Relevant bibliographies by topics / Habitat modification

Academic literature on the topic 'Habitat modification'

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Published: 4 June 2021
Last updated: 10 March 2023

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Journal articles on the topic "Habitat modification"

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Setiawan, Kuncoro Teguh, Nana Suwargana, Devica Natalia Br. Ginting, Masita Dwi Mandini Manessa, Nanin Anggraini, Syifa Wismayati Adawiah, Atriyon Julzarika, Surahman Surahman, Syamsu Rosid, and Agustinus Harsono Supardjo. "BATHYMETRY EXTRACTION FROM SPOT 7 SATELLITE IMAGERY USING RANDOM FOREST METHODS." International Journal of Remote Sensing and Earth Sciences (IJReSES) 16, no. 1 (October 23, 2019): 23. http://dx.doi.org/10.30536/j.ijreses.2019.v16.a3085.

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The scope of this research is the application of the random forest method to SPOT 7 data to produce bathymetry information for shallow waters in Indonesia. The study aimed to analyze the effect of base objects in shallow marine habitats on estimating bathymetry from SPOT 7 satellite imagery. SPOT 7 satellite imagery of the shallow sea waters of Gili Matra, West Nusa Tenggara Province was used in this research. The estimation of bathymetry was carried out using two in-situ depth-data modifications, in the form of a random forest algorithm used both without and with benthic habitats (coral reefs, seagrass, macroalgae, and substrates). For bathymetry estimation from SPOT 7 data, the first modification (without benthic habitats) resulted in a 90.2% coefficient of determination (R2) and 1.57 RMSE, while the second modification (with benthic habitats) resulted in an 85.3% coefficient of determination (R2) and 2.48 RMSE. This research showed that the first modification achieved slightly better results than the second modification; thus, the benthic habitat did not significantly influence bathymetry estimation from SPOT 7 imagery.
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Johns, Andrew D. "Responses of Amazonian rain forest birds to habitat modification." Journal of Tropical Ecology 7, no. 4 (November 1991): 417–37. http://dx.doi.org/10.1017/s0266467400005812.

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ABSTRACTBird species were surveyed in a variety of habitat types in a lightly populated area of western Brazilian Amazonia. Habitats surveyed were untagged forest, selectively logged forest, ‘capoeira’ (scrub regenerating on cleared land), cropfields, and an isolated 35 ha forest ‘island’. All habitats were within a few kilometres of each other. Many bird species were found to occur in all or most habitats, although the similarlity of the species assemblages dropped with increasing levels of disturbance of the natural vegetation. Certain understorey insectivores common in untagged forest were rarely observed in other habitats; disturbed areas contained higher numbers of flycalching insectivores or birds feeding on both insects and fruit, some of which were open-country rather than forest species. The avifauna of the forest ‘island’ was more similar to that of regenerating scrub than to that of tall forest, and the persistence of forest species was attributed to their ability to move to and from nearby continuous forest areas.
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BUIJ, RALPH, NIKIE VAN DORST, HENRIËTTE F. SALOMONS, BARBARA M. CROES, MAURINE W. DIETZ, and JAN KOMDEUR. "Response to habitat modification by foraging Dark-chanting Goshawks Melierax metabates in a West African savanna." Bird Conservation International 25, no. 3 (December 11, 2014): 335–52. http://dx.doi.org/10.1017/s0959270914000112.

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SummaryAnthropogenic habitat alteration has probably contributed significantly to the decrease of raptor populations in West African savannas. To evaluate the impact of habitat degradation on foraging by sedentary Afrotropical raptors, we investigated the differences in microhabitat selection, foraging effort and energy returns between Dark-chanting Goshawks Melierax metabates inhabiting natural and transformed savannas in Cameroon. We expected that the agro-ecosystems in the transformed savannas have become unprofitable for Dark-chanting Goshawks due to scarcity of food resources. In both savanna types we radio-tracked six mated, adult males during the non-breeding season and determined foraging effort, by time spent at each perch and distance covered between perches, and energy intake through estimation of the energy value of prey items. Goshawks in natural habitats had smaller home-ranges and exploited their range more intensively than Goshawks in transformed habitats. In both natural and transformed habitats, Goshawks selected foraging patches with comparatively tall trees, underlining their importance to foraging Goshawks. The extent of shrub and herbaceous layer cover, agriculture cover, and tree density were other important predictors of foraging patch use, but their importance differed between habitats. The extent of shrub, herbaceous layer and agriculture cover were positively associated with foraging patch use in transformed habitats, suggesting that cultivated fields and ground vegetation support important prey resources for Goshawks in agro-ecosystems. The composition of broad prey categories to the diet, foraging effort and returns were comparable between habitats. However, we found indications that the proportion of heavy-bodied lizard species among reptile prey items was higher in natural than transformed habitats, whereas on average smaller lizards were more commonly caught in the latter. Mean herbaceous layer height and tree density within home ranges, both higher in natural habitat, were negatively related to prey capture rates. Tree clearance and livestock grazing thus favored greater prey capture rates in transformed habitat, offsetting a lower meal energy value compared to natural habitat. We conclude that foraging Dark-chanting Goshawks may cope with moderate land transformation, but practices focused on conservation of tall trees and ground vegetation cover would be beneficial by maintaining important prey resources and their exploitability under growing land pressure.
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Poole, Kim G., Leslie A. Wakelyn, and Paul N. Nicklen. "Habitat selection by lynx in the Northwest Territories." Canadian Journal of Zoology 74, no. 5 (May 1, 1996): 845–50. http://dx.doi.org/10.1139/z96-098.

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An understanding of habitat selection by lynx (Lynx canadensis) in the northern boreal forest is needed to evaluate the potential impacts of habitat modification (wildfire and timber harvesting) on lynx populations. We quantified habitat selection by lynx in a 290-km2 study area in the western Northwest Territories from 1989 to 1993 by radio-collaring 27 adult lynx (12 females and 15 males). An 8-class habitat map, produced using Landsat thematic mapper data, was used to assess habitat selection. Lynx used habitats disproportionately to their availability (P < 0.001), both at the landscape level and within home ranges. Dense coniferous and dense deciduous forests had higher selection indices than other habitat classes, and wetland – lake bed complexes and open black spruce (Picea mariana) forests had lower selection indices. Habitat selection did not differ between the sexes or among years (P ≥ 0.4) Habitat alteration by wildfire in the northern boreal forest could significantly affect populations of the lynx and its primary prey, the snowshoe hare (Lepus americanus), particularly by maintaining or increasing the availability of dense forest and other preferred habitats.
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MAIROTA, PAOLA, VINCENZO LERONNI, WEIMIN XI, DAVID J. MLADENOFF, and HARINI NAGENDRA. "Using spatial simulations of habitat modification for adaptive management of protected areas: Mediterranean grassland modification by woody plant encroachment." Environmental Conservation 41, no. 2 (November 15, 2013): 144–56. http://dx.doi.org/10.1017/s037689291300043x.

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SUMMARYSpatial simulation may be used to model the potential effects of current biodiversity approaches on future habitat modification under differing climate change scenarios. To illustrate the approach, spatial simulation models, including landscape-level forest dynamics, were developed for a semi-natural grassland of conservation concern in a southern Italian protected area, which was exposed to woody vegetation encroachment. A forest landscape dynamics simulator (LANDIS-II) under conditions of climate change, current fire and alternative management regimes was used to develop scenario maps. Landscape pattern metrics provided data on fragmentation and habitat quality degradation, and quantified the spatial spread of different tree species within grassland habitats. The models indicated that approximately one-third of the grassland area would be impacted by loss, fragmentation and degradation in the next 150 years. Differing forest management regimes appear to influence the type of encroaching species and the density of encroaching vegetation. Habitat modifications are likely to affect species distribution and interactions, as well as local ecosystem functioning, leading to changes in estimated conservation value. A site-scale conservation strategy based on feasible integrated fire and forest management options is proposed, considering the debate on the effectiveness of protected areas for the conservation of ecosystem services in a changing climate. This needs to be tested through further modelling and scenario analysis, which would benefit from the enhancement of current modelling capabilities of LANDIS-II and from combination with remote sensing technologies, to provide early signals of environmental shifts both within and outside protected areas.
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Kwong, Ivan H. Y., Frankie K. K. Wong, Tung Fung, Eric K. Y. Liu, Roger H. Lee, and Terence P. T. Ng. "A Multi-Stage Approach Combining Very High-Resolution Satellite Image, GIS Database and Post-Classification Modification Rules for Habitat Mapping in Hong Kong." Remote Sensing 14, no. 1 (December 24, 2021): 67. http://dx.doi.org/10.3390/rs14010067.

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Identification and mapping of various habitats with sufficient spatial details are essential to support environmental planning and management. Considering the complexity of diverse habitat types in a heterogeneous landscape, a context-dependent mapping framework is expected to be superior to traditional classification techniques. With the aim to produce a territory-wide habitat map in Hong Kong, a three-stage mapping procedure was developed to identify 21 habitats by combining very-high-resolution satellite images, geographic information system (GIS) layers and knowledge-based modification rules. In stage 1, several classification methods were tested to produce initial results with 11 classes from a WorldView-2/3 image mosaic using a combination of spectral, textural, topographic and geometric variables. In stage 2, modification rules were applied to refine the classification results based on contextual properties and ancillary data layers. Evaluation of the classified maps showed that the highest overall accuracy was obtained from pixel-based random forest classification (84.0%) and the implementation of modification rules led to an average 8.8% increase in the accuracy. In stage 3, the classification scheme was expanded to all 21 habitats through the adoption of additional rules. The resulting habitat map achieved >80% accuracy for most of the evaluated classes and >70% accuracy for the mixed habitats when validated using field-collected points. The proposed mapping framework was able to utilize different information sources in a systematic and controllable workflow. While transitional mixed habitats were mapped using class membership probabilities and a soft classification method, the identification of other habitats benefited from the hybrid use of remote-sensing classification and ancillary data. Adaptive implementation of classification procedures, development of appropriate rules and combination with spatial data are recommended when producing an integrated and accurate map.
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Rambaldini, D. A., and R. M. Brigham. "Pallid bat (Antrozous pallidus) foraging over native and vineyard habitats in British Columbia, Canada." Canadian Journal of Zoology 89, no. 9 (September 2011): 816–22. http://dx.doi.org/10.1139/z11-053.

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Optimal foraging theory predicts organisms will forage in habitats providing the most profitable prey. Human alterations to ecosystems may affect predators’ foraging activity by changing landscape features, prey types, and prey availability. Assessing the selection of foraging habitats in a heterogeneous landscape can provide data to improve land management and conservation policies. In Canada, the pallid bat ( Antrozous pallidus (LeConte, 1856); Vespertilionidae) is listed as threatened partly because of loss or modification of shrub–steppe habitat. Our purpose was to determine if vineyards provide a suitable surrogate for foraging habitat relative to native habitat. We used pitfall traps to compare prey abundance in each habitat and analyzed faeces to assess diet composition. Over 24 nights, we surveyed both habitats for foraging bats. Bats foraged over vineyards, but we recorded significantly more foraging activity over native habitat. We collected over 2000 arthropods in pitfall traps and found significantly more in native habitat compared with vineyards. Species eaten by pallid bats were present in both habitats. Scarab beetles (Coleoptera: Scarabidae) and Jerusalem crickets (Orthopthera: Stenopelmatidae) represented the principal prey. The use of vineyards by pallid bats for foraging suggests that while they are adapting to a changing landscape, reduced prey abundance in vineyards may negatively affect them over the long term.
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Fischer, Joern, and David B. Lindenmayer. "Landscape modification and habitat fragmentation: a synthesis." Global Ecology and Biogeography 16, no. 3 (May 2007): 265–80. http://dx.doi.org/10.1111/j.1466-8238.2007.00287.x.

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Van Emden, H. F., and Z. T. Dabrowski. "Biodiversity and habitat modification in pest management." International Journal of Tropical Insect Science 15, no. 06 (December 1994): 605–20. http://dx.doi.org/10.1017/s174275840001691x.

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Iwan, Suryadi. "Habitat characteristics with an. barbirostris larva density in Bulukumba." E3S Web of Conferences 73 (2018): 06019. http://dx.doi.org/10.1051/e3sconf/20187306019.

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Bulukumba is a malaria endemic area in South Sulawesi with malaria cases reported annually, An.barbirostris as a potential vector of malaria in the area. This study aims to analyze habitat characteristics with a density of An. barbirostris larvae The method used is an observational study with ecological survey design through the cross-sectional approach of samples in the form of Anopheles larvae habitat. Bivariate analysis shows physical, chemical, and biological environmental factors. water temperature significant to the density of larva An.barbirostris with p-value = 0,002. Multivariate test using linear regression to know the most influential variables, it is known that the variables that have the most influence on the density of larvae An. barbirostris in endemic area Bulukumba is water temperature p = 0,002. Environmental factors such as salinity, aquatic plant, plants around, predators and crops along with water temperature are factors that support the density of An. barbirostris larvae Control can be done with environmental management, especially interventions on Anopheles sp larvae breeding habitat, by sowing predator fish seeds, habitat modification and manipulation. modification of anopheles habitat by covering habitats and carrying out development can reduce larval nutrition so as to reduce carbon in the soil which results in a decrease in larval density.
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Dissertations / Theses on the topic "Habitat modification"

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Rangeley, Robert W. (Robert William). "Habitat selection in juvenile pollock, Pollachius virens : behavioural responses to changing habitat availability." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28648.

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This thesis demonstrates how tidal changes in the availability of intertidal zone habitats can affect the distribution and behaviour of juvenile pollock (Pollachius virens). Schools of pollock moved from the subtidal zone to the open habitat in the intertidal zone. On rising tides, pollock switched from the open habitat at low tidal stages to the dense algal habitat at high tidal stages. On falling tides, pollock rapidly schooled downshore in the open habitat. Pollock were rarely solitary in the open habitat and usually formed large schools. In the algal habitats, pollock were usually dispersed and preferred the dense algae over the sparse algae. Predation risk from birds was widely distributed among depths, habitats and stages of the tide, during the day. In a mesocosm experiment, pollock increased their use of the algal habitat and were more difficult to detect following a simulated bird predator threat. Preference for the algal habitat was density-dependent when either pollock abundance or algal habitat area were manipulated. Pollock responded to their potentially high density in the algae by schooling in the open habitat.
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Gray, Michael Andrew. "The ecological impacts of habitat modification on tropical biodiversity." Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440791.

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Brush, Janell Marie. "Wetland avifauna usage of littoral habitat prior to extreme habitat modification in Lake Tohopekaliga, Florida." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0014260.

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Muench, Ann Marie. "Aquatic vertebrate usage of littoral habitat prior to extreme habitat modification in Lake Tohopekaliga, Florida." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008580.

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Maran, Audrey Marie. "The effect of anthropogenic habitat modification on insect-mediated ecosystem services." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1594488419133855.

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Wesenbeeck, Bregje Karien van. "Thresholds and shifts : consequences of habitat modification in salt-marsh pioneer zones /." PURL, 2007. http://www.arlis.org/docs/vol1/A/433191982.pdf.

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FALASCHI, MATTIA. "INTERACTIVE EFFECTS OF HABITAT MODIFICATION AND INVASIVE ALIEN SPECIES ON AMPHIBIAN BIODIVERSITY." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/822579.

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The biodiversity of our planet is facing a severe crisis. Habitat alteration, climate change, the spread of alien species, and overexploitation are major drivers of biodiversity loss. These global change drivers often act jointly or even synergistically on population declines. To identify priorities for conservation, it is thus essential to compare the relative impact of different threats on biodiversity. Amphibians are the vertebrates showing both the largest proportion of threatened species and the highest rate of decline. Out of the ~6,800 amphibian species assessed by the IUCN, more than 4,000 species are threatened by at least one stressor, and more than 2,000 by at least two stressors. Habitat modification (alteration and/or destruction) and alien species are the two factors threatening the largest number of amphibian species. For this reason, this thesis investigates the role of habitat modification and invasive alien species in determining the temporal dynamics of amphibian populations. The role of these stressors is examined at different spatial scales and jointly with other factors such as microhabitat, landscape, or climatic variables. The first study (Chapter 2) is a continental-scale analysis, which evaluates the combined effects of alien species, habitat availability, habitat changes, and climate change in determining population trends of European amphibian (and some reptile) species over the last 45 years. The results showed that populations declined more often in areas with a high number of alien species and where climate change has caused a loss of climatic suitability. The effect of habitat availability was not relevant when averaged across species; however, when excluding the two commonest species, habitat loss was the main correlate of negative population trends for the remaining species. Furthermore, I observed a strong interaction between habitat availability and the richness of alien species, which indicated that the negative impact of alien species was particularly strong for populations living in landscapes with less suitable habitat Then, the thesis focuses on a specific system: the invasion of the red swamp crayfish Procambarus clarkii in Italy, and its effect on the population dynamics of amphibians. The second study (Chapter 3) presents the updated distribution of the red swamp crayfish in Italy. Thirty years after its first record in Italy in 1989, the red swamp crayfish has invaded 80% of Italian provinces. The invasion is particularly extensive in central and northern Italy, where this invasive crayfish is present in 100% and 96% of provinces, respectively. Given the strong negative effects that the red swamp crayfish can exert on native amphibians, its widespread distribution raises concern about the future status of conservation of the Italian batrachofauna. Chapter 4 analyses site occupancy data of newts in northern Italy, in an area suffering the introduction of the invasive crayfish, in order to investigate the role of microhabitat, landscape change, and invasive species in determining the decline of two newt species through time. Initial occupancy of newts was negatively affected by landscape alteration (i.e. urban and agricultural cover) and by the presence of fish. Both species suffered a strong decline, with a net loss of site occupancy of 25%‒36% along the study period. After the crayfish invasion, the main drivers of population dynamics sharply shifted, and occupancy changes were not determined by landscape or microhabitat alterations, as the strongest predictor of local extinctions was the colonization of wetlands by invasive crayfish. The last study (Chapter 5) focuses on the effect of habitat characteristics and invasive crayfish in determining the temporal dynamics of the amphibian community in a large number of wetlands in northern Italy. Since connectivity among wetlands is fundamental for the dynamics of spatially structured populations, we considered two measures of connectivity acting on each focal wetland: incidence of the focal species, and incidence of invasive crayfish. Survival and colonization of local populations were jointly determined by factors acting at different scales. Survival probability was positively related to the area and the permanence of wetlands, while it showed a negative relationship with the occurrence of fish. Colonization probability was highest in semi-permanent wetlands and in sites with a high incidence of the focal species in nearby sites. Furthermore, the incidence of invasive crayfish emerged as one of the strongest drivers of colonization probability. In this thesis, I showed that invasive alien species are a major driver of the decline of European amphibians. The negative effect of invasive alien species acted differently across species and spatial scales. While the site-level impact was evident only for a subset of species, the landscape-level effect of invasive crayfish was ubiquitous across the whole amphibian community. Habitat modification showed a less evident effect, but invasive alien species and habitat modification can strongly interact: the negative effect of alien species is exacerbated in highly modified landscapes. It is thus essential to directly prevent and manage the spread of alien species, while simultaneously preserving natural landscapes. This can help in mitigating the negative effects of invasives, even when habitat alteration is not the main threatening factor.
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SICURELLA, BEATRICE CARLOTTA. "Analysis of the consequences of climate change and habitat modification on migratory birds." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2015. http://hdl.handle.net/10281/69740.

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Habitat alteration and climate change are among the anthropogenic factors that contribute most to the current global decline of biodiversity. Due to their sensitivity to environmental conditions, birds are considered excellent indicators of global change. In particular, long-distance migrants are likely more sensitive to global change than residents or short-distance migrants because they suffer from changes in ecological conditions both at their breeding and wintering quarters The aim of this thesis is to investigate the effects of climate change and habitat modification on population dynamics of migratory birds. The first part of this thesis includes papers investigating the effects of environmental conditions experienced by two long-distance migratory species, the Barn Swallow Hirundo rustica and the Common Swift Apus apus, at their breeding quarters in Northern Italy on their population dynamics. We observed that both the presence of livestock farming and the extent of hayfields close to the breeding site affected colony size of Barn Swallows and that recent variation in these conditions has probably concurred to worsen the demographic decline that this population has suffered. We also investigated the effect of the rearing environment on the survival and growth of Common Swift nestlings in a part of the breeding range of this species where these effects have never been investigated so far. We observed that nestlings’ growth is influenced not only by competition for resources with nest mates, but also by meteorological conditions. However, the effects we documented were different from those observed in more northern parts of the breeding range of the species, thus suggesting geographical variation in the susceptibility of this widespread species to general ecological conditions. In the second part of this thesis we aimed at identifying migration routes and wintering quarters of small-sized migrant birds, and at evaluating the effect of environmental conditions experienced during migration and wintering on population dynamic. We followed two different and complementary approaches. First, we took advantage of the large number of ring recoveries available for the Barn Swallow throughout more than a century to identify changes in the timing of migration and main migration routes of individuals breeding in Europe. Second, we applied miniaturized tracking devices to 94 Barn Swallows to precisely identify, for the first time, timing of migration and position of the wintering areas of each individual. We could also evaluate the impact of the application of these instruments on survival and breeding success. In a further study we combined information on wintering grounds and migration routes with long-term data on population dynamic from Northern Italy and found that environmental conditions encountered during wintering and spring migration are the factors that influence most year-to-year variation in population consistency. Finally, we analyzed a long-term series of ringing data on a short-distance migrant, the European Robin Erithacus rubecula and found that winter temperatures at the breeding grounds influenced spatial and temporal variation in migration propensity and distance among individuals. Overall, our researches confirmed that global change is already affecting bird populations by acting at different stages of their life-cycle. We showed that variations in ecological conditions at breeding quarters seem to influence breeding performances of individuals, while condition experienced during migration and wintering seem to affect their survival. Effective conservation measures for migratory species should therefore aim at protecting both breeding and wintering areas as well as stopover sites along migration routes. The novel analytic frameworks we developed may also be suitable for investigating the effects of climate change on migration across a broad range of species.
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Pillay, Pradeep. "The ecological and evolutionary assembly of competitive communities in dynamic landscapes /." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101164.

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We use metapopulation models based on a classic competition-colonization trade-off in order to (1) study community responses to spatially structured habitat loss on dynamic landscapes when species are assembled by ecological (biogeographic) processes; and (2) to study how species are assembled into communities by evolutionary mechanisms. In the first part of our study we show how the response of species richness to habitat destruction in dynamic landscapes can be driven by the existence of either the spatial structure of habitat dynamics or by life-history trade-offs among species. In the second part of our study we confirm that competitive trade-off models predict runaway evolution towards stochastic extinction, making it impossible for stable multispecies assemblages to evolve. We demonstrate that by relaxing the strict deterministic nature of competitive exclusion in such models species can avoid selection towards extinction, allowing for the possibility of species co-evolution resulting in stable multispecies assemblages.
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Fischer, Jason L. "Fish community response to habitat alteration: impacts of sand dredging in the Kansas River." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/13601.

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Master of Science
Department of Biology
Craig Paukert
In-stream dredging is a common practice in rivers worldwide that can affect fish and fish habitat. We investigated the magnitude of these alterations and their influence on the fish community of the Kansas River, a large sand bed river. Fishes were collected monthly from June 2010 to June 2011 in Edwardsville and Lawrence, KS from 12, 1-km reaches (three actively dredged, two historically dredged that have not been dredged in at least one month, and seven control reaches) with bottom trawls, seines, and electrofishing. Water depths and velocities were measured with an acoustic doppler current profiler and interpolated in ArcGIS at all 12 reaches. Actively dredged reaches had proportionally more deep water habitat (> 3 m) and lower velocity (< 0.15 m/s) near the river bed than control reaches (P < 0.01 and P = 0.04, respectively). However, the mean proportion of shallow water habitat (< 0.5 m), high velocities near the river bed (> 0.30 m/s), low velocity habitat (< 0.25 m/s), and high velocity habitat (> 0.75 m/s) were similar among all reach types (Ps > 0.05). A canonical correspondence analysis was used to characterize relationships among habitat variables, reach types (actively dredged, historically dredged, and control), and catch per unit effort (CPUE) of fishes in the Kansas River. Mean velocity and depth explained a significant amount of variation in species CPUE; however, reach type was not a significant factor for any of the gear types for any season. Our results show that dredging in Great Plains Rivers can increase depths, but alterations to fish community structure was not evident, likely because many of these fishes are adapted to a range of habitat conditions and are highly mobile.
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Books on the topic "Habitat modification"

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Canada. Division de l'habitat du poisson. Habitats côtiers perturbés dans le réseau Saint-Laurent en aval de l'Île d'Orléans. Cap-Diamant, Qué: Ministère des pêches et des océans, Direction de la gestion des pêches et de l'habitat, 1990.

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Weeks, Regan. The effect of an herbicide induced habitat alteration on small mammal community structure in West Texas. Bellingham, Wash: Huxley College of Environmental Studies, Western Washington University, 1986.

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Groshens, Thomas P. An assessment of the transferability of habitat suitability criteria for smallmouth bass. Blacksburg: Virginia Water Resources Research Center, Virginia Polytechnic Institute and State University, 1993.

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United States. Soil Conservation Service, ed. Habitat management for furbearers. [Salina, Kan: USDA Soil Conservation Service, 1986.

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Frezza, T. Assessing fish habitat supply and potential responses to habitat manipulation in small Canadian Shield lakes. [Ottawa?]: Fisheries and Oceans, 2002.

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Frezza, T. Assessing fish habitat supply and potential responses to habitat manipulation in small Canadian Shield lakes. Burlington, Ont: Fisheries and Oceans Canada, Great Lakes Laboratory for Fisheries and Aquatic Sciences, 2002.

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United States. Office of the Assistant Secretary of the Army (Civil Works). Ramapo and Mahwah rivers, Mahwah, NJ, and Suffern, NY: Communication from the Assistant Secretary of the Army (Civil Works) transmitting a report dated November 17, 1984, from the Chief of Engineers, Department of the Army ... together with other pertinent reports, pursuant to Pub. L. 94-587, sec. 150(b) (90 Stat. 2932). Washington: U.S. G.P.O., 1987.

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Branch, Ontario Wildlife. Timber management guidelines for the provision of moose habitat. Ontario: Ministry of Natural Resources, 1988.

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Ontario. Ministry of Natural Resources. Wildlife Branch. Timber management guidelines for the provision of moose habitat. S.l: s.n, 1988.

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Adams, A. W. Final report: Wildlife Research Project Oregon. Portland, Or: Oregon Dept. of Fish and Wildlife, 1987.

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Book chapters on the topic "Habitat modification"

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Gutiérrez, Jorge L. "Modification of Habitat Quality by Non-native Species." In Impact of Biological Invasions on Ecosystem Services, 33–47. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-45121-3_3.

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McKinney, Tracie, Jessica L. Westin, and Juan Carlos Serio-Silva. "Anthropogenic Habitat Modification, Tourist Interactions and Crop-Raiding in Howler Monkeys." In Howler Monkeys, 281–311. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1960-4_11.

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Ysebaert, Tom, Brenda Walles, Judy Haner, and Boze Hancock. "Habitat Modification and Coastal Protection by Ecosystem-Engineering Reef-Building Bivalves." In Goods and Services of Marine Bivalves, 253–73. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96776-9_13.

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Tilman, D. "Community Diversity and Succession: The Roles of Competition, Dispersal, and Habitat Modification." In Biodiversity and Ecosystem Function, 327–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-58001-7_15.

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Govenar, Breea. "Shaping Vent and Seep Communities: Habitat Provision and Modification by Foundation Species." In Topics in Geobiology, 403–32. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9572-5_13.

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Dhang, Partho, Philip Koehler, Roberto Pereira, and Daniel D. Dye II. "Mosquitoes." In Key questions in urban pest management: a study and revision guide, 23–30. Wallingford: CABI, 2022. http://dx.doi.org/10.1079/9781800620179.0003.

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Abstract This book chapter discusses mosquitoes as deadly disease vectors. Biological control is usually implemented for control of larval populations using predators (e.g. top feeding minnows and copepods) or pathogens and pathogen products (i.e., Bacillus thuringiensis israeliensis and B. sphericus). Genetic control is being implemented by releasing sterilized male mosquitoes (genetically modified, radiation sterilised, or transgenic mosquitoes). It starts with minimizing bites through the use of window screens on houses and animal shelters, and the use of treated bed nets and personal repellents. Habitat modification is a reliable method that eliminates adult resting sites and source reduction of larval development areas.
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Titcomb, Georgia. "Climate-driven livestock management shifts and tick populations." In Climate, ticks and disease, 139–44. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789249637.0020.

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Abstract Climate change can affect all aspects of the tick life cycle, from altering host distributions to modulating tick development and survival. This expert opinion focuses on how humans can greatly affect tick populations via livestock management. This is likely to occur through at least three pathways: (i) by altering host abundance and composition; (ii) via habitat modification due to grazing and trampling; and (iii) by altering tick mortality via tick-control methods. Thus, climate-driven changes to livestock management can profoundly alter tick populations, especially in regions such as eastern and southern Africa, where high livestock density and worsening climate changes are coupled with high tick diversity and abundance.
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Miltenberger, Raymond G., and Claire A. Spieler. "Habit Modification." In The Psychology of Habit, 153–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97529-0_9.

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Loudon, Fiona K., and Ricky-John Spencer. "Applying theories of life history and ageing to predict the adaptive response of Murray River turtles to climate change and habitat modification." In Wildlife and Climate Change, 127–36. P.O. Box 20, Mosman NSW 2088, Australia: Royal Zoological Society of New South Wales, 2012. http://dx.doi.org/10.7882/fs.2012.019.

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Górriz-Mifsud, Elena, Aitor Ameztegui, Jose Ramón González, and Antoni Trasobares. "Climate-Smart Forestry Case Study: Spain." In Forest Bioeconomy and Climate Change, 211–28. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99206-4_13.

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AbstractIn Spain, 55% of land area is covered by forests and other woodlands. Broadleaves occupy a predominant position (56%), followed by conifers (37%) and mixed stands (7%). Forest are distributed among the Atlantic (north-western Iberian rim), Mediterranean (rest of the peninsula including the Balearic Islands) and Macaronesian (Canary Islands) climate zones. Spanish woodlands provide a multiplicity of provisioning ecosystem services, such as, wood, cork, pine nuts, mushrooms and truffles. In terms of habitat services, biodiversity is highly relevant. Cultural services are mainly recreational and tourism, the latter being a crucial economic sector in Spain (including rural and ecotourism). Regulatory services, such as erosion control, water availability, flood and wildfire risk reduction, are of such great importance that related forest zoning and consequent legislation were established already in the eighteenth century. Climate change in Southern Europe is forecast to involve an increase in temperature, reduction in precipitation and increase in aridity. As a result, the risks for natural disturbances are expected to increase. Of these, forest fires usually have the greatest impact on ecosystems in Spain. In 2010–2019, the average annual forest surface area affected by fire was 95,065 ha. The combination of extreme climatic conditions (drought, wind) and the large proportion of unmanaged forests presents a big challenge for the future. Erosion is another relevant risk. In the case of fire, mitigation strategies should combine modification of the land use at the landscape level, in order to generate mosaics that will create barriers to the spread of large fires, along with stand-level prevention measures to either slow the spread of surface fires or, more importantly, impede the possibility of fire crowning or disrupt its spread. Similarly, forest management can play a major role in mitigating the impact of drought on a forest. According to the land use, land-use change and forestry (LULUCF) accounting, Spanish forests absorbed 11% of the total greenhouse gas emissions in 2019. Investments in climate-smart forestry provide opportunities for using all the different parts of the Spanish forest-based sector for climate mitigation––forest sinks, the substitution of wood raw materials and products for fossil materials, and the storage of carbon in wood products. Moreover, this approach simultaneously helps to advance the adaptation of the forest to changing climate and to build forest resilience.
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Conference papers on the topic "Habitat modification"

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Condon, George C. "Habitat modification forOstrinia nubilalisIPM in New Jersey peppers." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.112007.

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Aminatun, Tien, and Nugroho Susetya Putra. "The effect of habitat modification on plant-pollinator network." In THE 4TH INTERNATIONAL CONFERENCE ON RESEARCH, IMPLEMENTATION, AND EDUCATION OF MATHEMATICS AND SCIENCE (4TH ICRIEMS): Research and Education for Developing Scientific Attitude in Sciences And Mathematics. Author(s), 2017. http://dx.doi.org/10.1063/1.4995196.

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"The population dynamics of ecosystem engineers and habitat modification." In 24th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand, 2021. http://dx.doi.org/10.36334/modsim.2021.f3.watt2.

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Ivan, Peter. "MODIFICATION AND APPLICATION OF THE HABITAT SUITABILITY CURVES FOR DEPTH." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2015/b31/s12.058.

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Trisnawati, Indah, and Abdul Azis. "The effectiveness of habitat modification schemes for enhancing beneficial insects: Assessing the importance of trap cropping management approach." In PROCEEDING OF INTERNATIONAL BIOLOGY CONFERENCE 2016: Biodiversity and Biotechnology for Human Welfare. Author(s), 2017. http://dx.doi.org/10.1063/1.4985429.

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Miller, Veronica B., and Laura A. Schaefer. "Dynamic Modeling of Hydrokinetic Energy Extraction." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67722.

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The world is facing an imminent energy supply crisis. Our well-being is linked to the energy supply, and energy is in high demand in both the developed and the developing world. Therefore, in order to sustain our energy supply, it is necessary to advance renewable technologies. Despite this urgency, however, it is paramount to consider the larger environmental effects associated with using renewable resources. Hydropower, in the past, has been seen as a viable resource to examine given that its basics of mechanical to electrical energy conversion seem to have little effect on the environment. Discrete analysis of dams and in-stream diversion set-ups has shown otherwise though. Modifications to river flows and temperatures (from increased and decreased flows) cause adverse effects to fish and other marine life because it changes their adaptive habitat. Recent research developments have focused on kinetic energy extraction in river flows, which prove to be more sustainable as this type of extraction does not involve a large reservoir or large flow modification. The field of hydrokinetic energy extraction is immature. Little is known about their performance in the river environment, and their risk of impingement, fouling, and suspension of sediments. Basic principles of hydrokinetic energy extraction are presented along with a computational fluid dynamics model of the system. Through examining these principles it is clear that more research is required in hydrokinetic energy extraction with emphasis towards lower environmental and ecological impact.
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Kokh, Alexander E., Nadegda G. Kononova, Vasily Vlezko, and Dmitry Kokh. "LBO grown crystals habitus modification by the heat field configuration." In Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, edited by Peter G. Schunemann and Kenneth L. Schepler. SPIE, 2020. http://dx.doi.org/10.1117/12.2542987.

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Katsumata, Kento, Yusaku Eigen, Yuka Noda, Masayoshi Tsuruoka, Satsuki Hashiba, Shotaro Numoto, Shin Katayama, Tadashi Okoshi, and Jin Nakazawa. "Motivating Long-term Dietary Habit Modification through Mobile MR Gamification (demo)." In MobiSys '19: The 17th Annual International Conference on Mobile Systems, Applications, and Services. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3307334.3328575.

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Parimaladevi, P., and K. Srinivasan. "Influence of solvents on the habit modification of alpha lactose monohydrate single crystals." In SOLID STATE PHYSICS: PROCEEDINGS OF THE 57TH DAE SOLID STATE PHYSICS SYMPOSIUM 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4791327.

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Podina, Ioana, Ana Toma, and Anamaria Cosmoiu. "RATIONALE AND DEVELOPMENT OF A PROOF OF CONCEPT GAMIFIED MHEALTH ATTENTION TRAINING APP TOWARDS HEALTHY FOOD CUES." In eLSE 2019. Carol I National Defence University Publishing House, 2019. http://dx.doi.org/10.12753/2066-026x-19-013.

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Among the factors shown to influence patterns in food consumption, attentional biases toward food cues have been found to play an important role in the maintenance of maladaptive eating behaviors, such as emotional eating, overeating or eating in the absence of hunger. As such, attention bias modification interventions have traditionally focused on retraining attention away from food towards neutral stimuli. However, recent theoretical upgrades and empirical findings highlight that maladaptive eating habits are not only associated with biases towards food in general, but particularly to biases towards unhealthy, calorie-dense foods. More specifically, individuals showing maladaptive eating patterns have a higher tendency to automatically turn their attention towards unhealthy food cues in their environment and to perceive them as being more salient. Thus, a more theoretically sound and ecologically valid aim of attention bias modification interventions is to retrain attention away from unhealthy food cues towards healthier ones in a computerised manner. The current study presents the theoretical rationale and the development of SANATENT, a gamified mHealth attentional bias modification intervention, designed to curb unhealthy eating habits and promote the consumption of healthy food. Within the intervention, a minimum of two and a maximum of six food images appear concurrently on the screen, with a single food item representing a healthy choice. Users are instructed to choose the correct image as fast and as accurately as possible, thus prompting them to ignore the unhealthy food options. SANATENT is envisioned to alter users' attentional biases in their ecological environment, thus being suited to function as either a stand-alone intervention or as a therapeutic adjuvant. Moreover, the application is based on gamification principles of learning, making it more appealing to use and potentially facilitating adherence to treatment. Practical and theoretical implications, as well as directions for future studies will be discussed.
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Reports on the topic "Habitat modification"

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O'Neil, L. J. Test and Modification of a Northern Bobwhite Habitat Suitability Index Model. Fort Belvoir, VA: Defense Technical Information Center, April 1993. http://dx.doi.org/10.21236/ada265937.

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N. Supplement Analysis for the Watershed Management Program EIS - Idaho Model Watershed Habitat Projects - L-9 Irrigation Diversion Modification. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/832886.

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Mengak, Michael T. Wildlife Translocation. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, July 2018. http://dx.doi.org/10.32747/2018.7210105.ws.

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Many people enjoy wildlife. Nationwide, Americans spend over $144 billion annually on fishing, hunting, and wildlife-watching activities. However, wildlife is not always welcome in or near homes, buildings, or other property and can cause significant damage or health and safety issues. Many people who experience a wildlife conflict prefer to resolve the issue without harming the offending animal. Of the many options available (i.e., habitat modification, exclusion, repellents) for addressing nuisance wildlife problems, translocation—capturing and moving—of the offending animal is often perceived to be effective. However, trapping and translocating wild animals is rarely legal nor is it considered a viable solution by wildlife professionals for resolving most nuisance wildlife problems. Reasons to avoid translocating nuisance wildlife include legal restrictions, disease concerns, liability issues associated with injuries or damage caused by a translocated animal, stress to the animal, homing behavior, and risk of death to the animal. Translocation is appropriate in some situations such as re-establishing endangered species, enhancing genetic diversity, and stocking species in formerly occupied habitats. The main focus of this publication, however, is to address nuisance wildlife issues that may be commonly encountered by homeowners and nuisance wildlife control professionals.
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Reeves, Gordon H., Fred H. Everest, and David B. Hohler. Influence of Habitat Modifications on Habitat Composition and Anadromous Salmonid Populations in Fish Creek, Oregon, 1983-1988 Annual Report. Office of Scientific and Technical Information (OSTI), May 1990. http://dx.doi.org/10.2172/901442.

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Jung, Jacob, Richard Fischer, Chester McConnell, and Pam Bates. The use of US Army Corps of Engineers reservoirs as stopover sites for the Aransas–Wood Buffalo population of whooping crane. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/44980.

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This technical report summarizes the use of US Army Corps of Engineers (USACE) reservoirs as spring and fall migration stopover sites for the endangered Aransas–Wood Buffalo population of whooping cranes (WHCR), which proved much greater than previously known. We assessed stopover use within the migration flyway with satellite transmitter data on 68 WHCR during 2009–2018 from a study by the US Geological Survey (USGS) and collaborators, resulting in over 165,000 location records, supplemented by incidental observations from the US Fish and Wildlife Ser-vice (USFWS) and the USGS Biodiversity Information Serving Our Nation (BISON) databases. Significant stopover use was observed during both spring and fall migration, and one reservoir served as a wintering location in multiple years. Future efforts should include (a) continued monitoring for WHCR at USACE reservoirs within the flyway; (b) reservoir-specific management plans at all projects with significant WHCR stopover; (c) a USACE-specific and range-wide Endangered Species Act Section 7(a)(1) conservation plan that specifies proactive conservation actions; (d) habitat management plans that include potential pool-level modifications during spring and fall to optimize stopover habitat conditions; and (e) continued evaluation of habitat conditions at USACE reservoirs.
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Weissinger, Rebecca. Evaluation of hanging-garden endemic-plant monitoring at Southeast Utah Group national parks, 2013–2020. Edited by Alice Wondrak Biel. National Park Service, October 2022. http://dx.doi.org/10.36967/2294868.

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Hanging gardens are the most common type of spring at Arches National Park (NP) and Natural Bridges National Monument (NM). They are also present at Canyonlands National Park, but hanging gardens are rare off the Colorado Plateau. Their cliffside setting provides stable access to water without flood disturbance. This combination provides unique habitat that is rich in endemic plant species. The diffuse, seeping emergence of water makes measuring springflow impossible at most sites. Park managers have an interest in monitoring hanging gardens—especially as the climate warms and aridity and water demand both increase. The Northern Colorado Plateau Net-work (NCPN) proposed methods for monitoring seven perennial endemic-plant species at hanging gardens as indicators of spring health and proxies for water availability. Because hanging gardens occur on bedrock outcrops, systematic or random sampling was not possible due to safety concerns and potential resource damage on steep, wet slopes. Examining eight years (2013–2020) of data, this report evaluates the suitability of endemic-plant count data at hanging gardens as a monitoring indicator. It also provides our first evaluation of status and trends at NCPN hanging gardens. The seven species included in monitoring were Rydberg’s thistle (Cirsium rydbergii), Kachina daisy (Erigeron kachinensis), alcove death camas (Zigadenus vaginatus), alcove bog orchid (Habenaria zothecina), cave primrose (Primula specuicola), alcove columbine (Aquilegia micrantha), and Eastwood’s monkeyflower (Mimulus eastwoodiae). Six of the seven species were found at each park. Up to 500 individuals of each species were counted at 42 hanging gardens in Arches NP, 14 hanging gardens in Natural Bridges NM, and 3 hanging gardens in Canyonlands NP. Larger populations were divided into count classes of 501–1,000, 1,001–10,000, and more than 10,000 individuals. Counts from two independent observers and from back-to-back years of sampling were compared for repeatability. Repeatability in count classes was less than 50% for Kachina daisy and Eastwood’s monkeyflower, which both propagate vegetatively via ramets and/or stolons. Repeatability was greater than 90% for only one species, Rydberg’s thistle. The remaining species were categorized in different classes between 15–40% of the time. Independent-observer comparisons were only available for 6.6% of the dataset, but these observations suggested that (1) observer bias was present and (2) the observer with more experience working in hanging gardens generally had higher counts than the observer with less experience in this system. Although repeatability was variable, it was within the range reported by other studies for most species. The NCPN, in discussion with park staff, has elected to make some modifications to the protocol but will continue using endemic plant counts as an indicator of hanging-garden health to maintain a biological variable as a complement to our physical-response data. This is due to their high value to park biodiversity and the difficulty of developing a more robust approach to monitoring in these sites. Endemic-plant monitoring will continue for the five species with the highest repeatability during pilot monitoring and will focus on detecting changes in smaller populations. Most hanging gardens have more than one endemic species present, so several populations can be tracked at each site. Our period of record is relatively brief, and the distribution of endemic-plant populations in different count classes at these sites has not yet shown any statistical trends over time. Be-cause of the large count classes, our methods are more sensitive to showing change in smaller populations (fewer than 500 individuals). Small populations are also of greatest concern to park managers because of their vulnerability to declines or extirpation due to drought. Over-all, more sites had endemic-plant populations of fewer than 100 individuals at the end...
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