Academic literature on the topic 'Vegetation removal'

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Journal articles on the topic "Vegetation removal"

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Dion, Nancy, Keith A. Hobson, and Serge Larivière. "Interactive Effects of Vegetation and Predators on the Success of Natural and Simulated Nests of Grassland Songbirds." Condor 102, no. 3 (August 1, 2000): 629–34. http://dx.doi.org/10.1093/condor/102.3.629.

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Abstract We examined the influence of vegetation and predator community on nesting success of songbirds in the grasslands of eastern North Dakota, USA. Each year, eight sites were chosen: four were subject to predator removal, and four were non-removal sites. On each site, nests of grassland songbirds were monitored, and simulated nests were used to examine how vegetation characteristics at nests affect nest success. Vegetative characteristics at simulated nests did not differ from those at natural nests, but successful natural nests had greater forb and lesser grass cover than unsuccessful nests, whereas no differences in vegetation were detected between successful and depredated simulated nests. On non-removal sites, small mammals and ground squirrels (Spermophilus sp.) depredated nests in taller and denser cover when compared to nests destroyed by medium-sized mammals and birds. On removal sites, we found no difference in vegetation characteristics of nests depredated by different predator types. However, each group of mammalian predators depredated simulated nests with different vegetation characteristics on removal versus non-removal sites. On sites where predators were removed, small mammals and ground squirrels preyed on simulated nests in shorter vegetation containing fewer forbs, ground squirrels preyed on nests with higher grass cover and lower vertical density, and medium-sized carnivores preyed on nests in taller vegetation. These results support the hypothesis that high predator diversity may reduce the chance of “safe” nest sites, and suggest that the behavior of low-level predators may change when top-level predators are removed.
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Paul, T. S. H., and N. J. Ledgard. "Vegetation succession associated with wilding conifer removal." New Zealand Plant Protection 62 (August 1, 2009): 374–79. http://dx.doi.org/10.30843/nzpp.2009.62.4878.

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Techniques used to remove unwanted wilding conifers can impact on subsequent vegetation successions Five South Island sites were assessed for vegetation successions after conifers had been removed by four methods felled to waste mulched harvested or killed standing by stem poisoning Felled conifers created a flush of vigorous plant growth but this increase was not longlasting and the end result was reduced plant biodiversity Mulching reduced all plant cover initially but gave poor wilding control Harvesting led to a dominance of exotics including wildings whereas solely native plants were found under dead standing trees that had been poisoned Results indicated that while there were differences in vegetation composition between the low and high altitude sites there are good opportunities for manipulating wilding control towards more desirable vegetation covers particularly involving native plants
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Baugh, Calum A., Paul D. Bates, Guy Schumann, and Mark A. Trigg. "SRTM vegetation removal and hydrodynamic modeling accuracy." Water Resources Research 49, no. 9 (September 2013): 5276–89. http://dx.doi.org/10.1002/wrcr.20412.

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Eckermann, Trevor K., Danielle S. Hunt, and Alicia M. Kinoshita. "Impacts of Vegetation Removal on Urban Mediterranean Stream Hydrology and Hydraulics." Hydrology 9, no. 10 (September 29, 2022): 170. http://dx.doi.org/10.3390/hydrology9100170.

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Given the widespread presence of non-native vegetation in urban and Mediterranean watersheds, it is important to evaluate how these sensitive ecosystems will respond to activities to manage and restore native vegetation conditions. This research focuses on Del Cerro, a tributary of the San Diego River in California, where non-native vegetation dominates the riparian zone, creating flooding and fire hazards. Field data were collected in 2018 to 2021 and consisted of water depth, streamflow, and stream temperature. Our data set also captured baseline conditions in the floodplain before and after the removal of burned non-native vegetation in November 2020. Observed changes in hydrologic and geomorphic conditions were used to parameterize and calibrate a two-dimensional hydraulic model to simulate urban floodplain hydraulics after vegetation removal. We utilized the U.S. Army Corps of Engineers’ Hydrologic Engineering Center River Assessment System (HEC-RAS) model to simulate the influence of canopy loss and vegetation disturbance and to assess the impacts of vegetation removal on stream restoration. We simulated streamflow, water depth, and flood extent for two scenarios: (1) 2019; pre-restoration where non-native vegetation dominated the riparian area, and (2) 2021; post-restoration following the removal of non-native vegetation and canopy. Flooding after restoration in 2021 was more frequent compared to 2019. We also observed similar flood extents and peak streamflow for storm events that accumulated half the amount of precipitation as pre-restoration conditions. Our results provide insight into the responses of small urban stream reaches to the removal of invasive vegetation and canopy cover.
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Bird, Tania Leah Fairfax, Amos Bouskila, Elli Groner, and Pua Bar Kutiel. "Can Vegetation Removal Successfully Restore Coastal Dune Biodiversity?" Applied Sciences 10, no. 7 (March 28, 2020): 2310. http://dx.doi.org/10.3390/app10072310.

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Coastal dune habitats have been declining globally over the last several decades due to rapid urbanization. Within remaining dune systems, dune fixation has resulted in further losses of mobile dunes with negative impacts on their associated species. Some studies suggest vegetation removal can initially promote habitat heterogeneity, and increase availability of suitable habitats for psammophile, xeric and endemic mobile dune species, but longer-term responses are generally unknown. We investigated the temporal trends of four taxonomic groups to determine the effect of vegetation removal on dune assemblages over a 12-year period at an LTER site. Three different forms of removal are investigated here—removal in a grid form on fixed dunes, removal of the wind-facing slope vegetation on semi-fixed dunes and opportunistic off-road driving on disturbed dunes. Results were varied across taxa, highlighting the need for multi-taxa monitoring in conservation and restoration management. Overall, fixed dune treatment had very little effect, while a stronger response was found in semi-fixed treatments in particular for mobile dune indicator species, which showed evidence of recolonization within a few years following treatment. Disturbed dunes were most similar to mobile dunes for animal taxa indicating that pulse removal may not be as effective as continuous press disturbance. Nevertheless, a less destructive form of disturbance such as re-introduction of grazing might be preferable and requires further investigation.
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Evans, Alexandra D., Kevin H. Gardner, Scott Greenwood, and Brett Still. "UAV and Structure-From-Motion Photogrammetry Enhance River Restoration Monitoring: A Dam Removal Study." Drones 6, no. 5 (April 19, 2022): 100. http://dx.doi.org/10.3390/drones6050100.

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Dam removal is a river restoration technique that has complex landscape-level ecological impacts. Unmanned aerial vehicles (UAVs) are emerging as tools that enable relatively affordable, repeatable, and objective ecological assessment approaches that provide a holistic perspective of restoration impacts and can inform future restoration efforts. In this work, we use a consumer-grade UAV, structure-from-motion (SfM) photogrammetry, and machine learning (ML) to evaluate geomorphic and vegetation changes pre-/post-dam removal, and discuss how the technology enhanced our monitoring of the restoration project. We compared UAV evaluation methods to conventional boots-on-ground methods throughout the Bellamy River Reservoir (Dover, NH, USA) pre-/post-dam removal. We used a UAV-based vegetation classification approach that used a support vector machine algorithm and a featureset composed of SfM-derived elevation and visible vegetation index values to map other, herbaceous, shrub, and tree cover throughout the reservoir (overall accuracies from 83% to 100%), mapping vegetation succession as well as colonization of exposed sediments that occurred post-dam removal. We used SfM-derived topography and the vegetation classifications to map erosion and deposition throughout the reservoir, despite its heavily vegetated condition, and estimate volume changes post-removal. Despite some limitations, such as influences of refraction and vegetation on the SfM topography models, UAV provided information on post-dam removal changes that would have gone unacknowledged by the conventional ecological assessment approaches, demonstrating how UAV technology can provide perspective in restoration evaluation even in less-than-ideal site conditions for SfM. For example, the UAV provided perspective of the magnitude and extent of channel shape changes throughout the reservoir while the boots-on-ground topographic transects were not as reliable for detecting change due to difficulties in navigating the terrain. In addition, UAV provided information on vegetation changes throughout the reservoir that would have been missed by conventional vegetation plots due to their limited spatial coverage. Lastly, the COVID-19 pandemic prevented us from meeting to collect post-dam removal vegetation plot data. UAV enabled data collection that we would have foregone if we relied solely on conventional methods, demonstrating the importance of flexible and adaptive methods for successful restoration monitoring such as those enabled via UAV.
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SHAFROTH, PATRICK B., JONATHAN M. FRIEDMAN, GREGOR T. AUBLE, MICHAEL L. SCOTT, and JEFFREY H. BRAATNE. "Potential Responses of Riparian Vegetation to Dam Removal." BioScience 52, no. 8 (2002): 703. http://dx.doi.org/10.1641/0006-3568(2002)052[0703:prorvt]2.0.co;2.

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Carvalho, Fernando Geraldo de, Nelson Silva Pinto, José Max Barbosa de Oliveira Júnior, and Leandro Juen. "Effects of marginal vegetation removal on Odonata communities." Acta Limnologica Brasiliensia 25, no. 1 (May 10, 2013): 10–18. http://dx.doi.org/10.1590/s2179-975x2013005000013.

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AIM: Here we assess the effects of habitat degradation on individuals of the two suborders of Odonata community of Borecaia river sub-basin. More specifically, we tested the hypothesis that Anisoptera richness would be positively affected by removal of vegetation; on the other hand, Zygoptera richness would be adversely affected by virtue of their ecophysiological requirements; METHODS: We selected 10 streams of similar orders, six preserved and four degraded. Streams characterized as preserved had values of Index of Habitat Integrity (HII) above 0.70 (0.77 ± 0.07, mean ± SD) and continuous forest on both sides with a minimum width of 70 meters. Each site was sampled three times on different days. The effect of vegetation removal on richness was assessed using richness estimated by first order Jackknife; RESULTS: Decreased physical integrity (measured with IIH) of streams had no significant effect on the estimated richness to Odonata in general. However, the estimated richness of Anisoptera showed an inverse relationship with the integrity (r² = 0.485, P = 0.025), i.e., there was a reduction in their species richness with increasing integrity; DISCUSSION: As a general pattern, Anisoptera presents higher richness in an altered site; on the other hand, Zygoptera presents higher richness in a preserved one. This pattern suggests that Odonata needs to be considered at the sub-order level to access the effects of habitat degradation on these insects. Because of its restrictions ecophysiological Odonata varied widely in their composition and species richness between the two types of environments, it reinforces the potential of the order of studies and environmental monitoring also shows that Zygoptera be more affected by changes in habitat. However, further studies including more samples and different streams are need to confirm this pattern, being an interesting line of research for future works.
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Maucieri, Carmelo, Michela Salvato, and Maurizio Borin. "Vegetation contribution on phosphorus removal in constructed wetlands." Ecological Engineering 152 (June 2020): 105853. http://dx.doi.org/10.1016/j.ecoleng.2020.105853.

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Issa, Ziad F., and Nilesh J. Goswami. "Simultaneous lead extraction and vacuum-assisted vegetation removal." HeartRhythm Case Reports 2, no. 1 (January 2016): 17–19. http://dx.doi.org/10.1016/j.hrcr.2015.08.008.

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Dissertations / Theses on the topic "Vegetation removal"

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Lisius, Grace L. "Vegetation Community Response to Hydrologic and Geomorphic Changes Following Dam Removal in a New England River." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106917.

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Thesis advisor: Noah P. Snyder
Dam removal is typically used to restore fish passage, natural flow regimes, and sediment transport in streams. However, dam removal also impacts the riparian vegetation, a change that can have wider effects throughout the ecosystem. Quantifying vegetation change requires a multi-year record to document pre-removal communities and both the immediate and delayed responses. In this study, vegetation change was assessed at the Merrimack Village Dam on the Souhegan River in Merrimack, NH, which was removed in August 2008. The removal caused a ~3 meter drop in water level and rapid erosion of impounded sediment, with ~50% removed in the first three months. The vegetation was sampled using plots at specific intervals along 7 monumented transects that were perpendicular to the channel or adjacent wetland. Tree, shrub, and herbaceous communities were assessed using species percent areal coverage techniques in July 2007, 2009, 2014 and 2015. Change over time was quantified using Analysis of Similarity (ANOSIM) on the Bray-Curtis dissimilarity matrix. As expected, vegetation communities in control plots upstream of the impoundment did not show significant change during the study period. Tree and shrub communities adjacent to the impoundment also did not show significant change. All herbaceous communities adjacent to the impoundment changed significantly (p < 0.05). The herbaceous plots closest to the channel changed to bare sand in 2009 due to erosion in the former impoundment, but by 2014 the riparian fringe community seen in 2007 had re-established and expanded in this area, but at a lower elevation. Between 2007 and 2014, the wetland herbaceous community changed from aquatic species to a stable terrestrial community that persisted without significant change in 2015. From 2007 to 2014, the vegetation community on a mid-channel island of impoundment sand changed from a community with ~50% invasive reed canary grass to a ~98% community of invasive black swallowwort, a species not recorded at the site pre-removal. The vegetation response was greatest in areas with largest geomorphic and hydrologic change, such as along the channel margin where erosion and bank slumping created an unstable scarp or on the mid-channel island and off-channel wetland strongly impacted by the lowered water table. However, large unvegetated areas never persisted nor did the areal coverage of invasive species expand: two common concerns of dam removals
Thesis (BS) — Boston College, 2016
Submitted to: Boston College. College of Arts and Sciences
Discipline: Scholar of the College
Discipline: Earth and Environmental Sciences
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Schalau, Jeff. "Cut Stump Application of Herbicides to Manage Woody Vegetation." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/144792.

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Persistent woody plants can sometimes conflict with gardening and landscape goals. In many cases, plant removal becomes necessary. This may be accomplished through manual stump removal or the use of herbicides. With some knowledge of the life history of the target plant, cut stumps can be safely and effectively treated with herbicides to prevent regrowth. Species lists, safety tips, examples, photos, and non-herbicide alternatives are provided to ensure optimum stump killing success.
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Schalau, Jeff. "Cut Stump Application of Herbicides to Manage Woody Vegetation." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/239596.

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Isaksson, Malin. "Response of riparian vegetation to removal of the Kuba dam in Nätraån." Thesis, Umeå University, Department of Ecology and Environmental Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34762.

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Vandermyde, Jodi Marie. "MACROINVERTEBRATE RESPONSES TO REMOVAL OF RIPARIAN WOODY VEGETATION ALONG TALLGRASS PRAIRIE STREAMS." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/theses/1068.

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Woody vegetation encroachment has become a major threat to tallgrass prairie streams mainly because of fire suppression. This process converts prairie streams from open to closed canopy systems. The effects of these riparian changes are poorly understood, but the relative importance of basal resources presumably shifts from primarily autochthonous to allochthonous with increasing canopy cover, potentially altering macroinvertebrate functional structure and production. To assess the effects of woody vegetation encroachment on stream ecosystem structure and function, riparian trees were removed from two headwater stream reaches on the Konza Prairie Biological Station (KPBS) in eastern Kansas. Experimental stream reaches were compared to streams with naturally open and closed canopies before and after the manipulation. Benthic organic matter and macroinvertebrates were collected monthly from each reach for one year before and one year after woody vegetation removal. Total community production in canopy removal reaches ranged from 8.9-10.2 g AFDM m-2 y-1 before riparian removal, and this increased significantly to 13.4-14.5 g AFDM m-2 y-1 after riparian removal. Scraper production in canopy removal reaches was 2.8-3.9 g AFDM m-2 y-1 before riparian removal, and increased significantly to 6.0-8.7 g AFDM m-2 y-1 after riparian removal, presumably due to enhanced food availability. Total community production in naturally open reaches ranged from 7.6-12.6 g AFDM m-2 y-1 before riparian removal and decreased to 6.5-9.8 g AFDM m-2 y-1 after riparian removal. Riparian forest removal altered macroinvertebrate production and functional structure, but higher macroinvertebrate production in canopy removal reaches compared to naturally open reaches suggested natural conditions were not restored one year after riparian removal. However, macroinvertebrate communities in naturally open and canopy removal reaches became more similar after riparian removal. Functional structure, based on production, in naturally open and canopy removal reaches after riparian removal was dominated by scrapers (45-60% of total production), with similar proportions of collector-gatherers (12-26%) and predators (15-25%). Collector-filterers and shredders contributed < 9% of total production in naturally open and canopy removal reaches after riparian removal. Results demonstrate that woody vegetation encroachment and riparian forest removal significantly influence tallgrass prairie stream structure and function. Information from this study can help inform and guide management, restoration, and conservation of remaining tallgrass prairie streams.
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Ramsey, Greer Stewart. "An Analysis of Vegetation Recovery following Dam Removal at Hemlock Recreation Site, Washington." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/2003.

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Dam removals are becoming increasingly common as dams reach their life expectancy and face costly upgrades associated with relicensing. Though removal is often viewed as a success in terms of ecological restoration, it also represents a major disturbance to an area. Previous research has shown that native species do not survive as well at these disturbed sites, and invasive species often dominate. This study examines the vegetation response in the drained reservoir area after the removal of Hemlock Dam on Trout Creek, a tributary to the Wind River in southern Washington. Transects were established and quadrats were sampled to determine the plant classifications and cover of vegetation and to examine possible correlations between environmental variables and the spatial distribution of plant classification groups. Sampling took place in the third and fourth years following dam removal, and the data was analyzed to determine significant changes and relationships. The results of this study showed that the site was dominated by a volunteer native forb Lotus purshianus (Spanish clover) and a planted native tree Alnus rubra (red alder). Most of the other species found were native volunteer forbs and grasses characteristic of early succession in this region. Both invasive species and planted species, with the exception of Alnus rubra, had low canopy covers. There was a significant increase in native plant canopy cover, as well as total canopy cover, from 2012 to 2013. There were also significant relationships between plant classification groups and environmental variables, including soil infiltration, elevation, and distance from stream. This study will help inform resource managers about the kinds of plants that will volunteer after dam removals and the possible success of re-vegetation projects.
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Nilsson, Josefin. "Ecosystem age affects nitrate removal in created wetlands." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-37233.

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This study investigates the effect of ecosystem age on the nitrate removal efficiency, nitrate removal rate and first-order area-based removal rate coefficients (both with and without temperature adjustment) of created wetlands. Data was collected from the first to eleventh year after wetland creation in an experimental wetland facility in south-west Sweden. The 18 small (22-29 m2) free water surface wetlands were divided into three groups based on initial planting: EVW (emergent vegetation wetlands), SVW (submerged vegetation wetlands) and CW (unplanted control wetlands). Summer and winter values from the 11 studied years were analysed separately in the repeated measures ANOVA. Over these 11 years the mean nitrate removal efficiency was 12 % and the mean nitrate removal rate was 0.17 g m-2 d-1. Mean removal rate coefficient (K) was 0.020 g d-1 and mean temperature adjusted removal rate coefficient (Ka) was 0.042 g d-1. The best performing wetlands were those initially planted with, and after four years almost completely covered by, emergent vegetation (EVW). This study indicates a positive correlation between wetland age and nitrate removal potential. It further indicates aging may be hastened by initial planting of wetland vegetation.
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Bucy, Ave Marie. "Thermoregulatory trade-offs result from vegetation removal by the westerner harvester ant, Pogonomyrmex occidentalis." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/cr/colorado/fullcit?p1425793.

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Smith, Caitlin Langworthy. "Effects of Sediment Removal on Vegetation Communities in Prairie Pothole Wetlands in North Dakota." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29314.

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The goal of this study was to assess effects of sediment removal on vegetation communities in Prairie Pothole wetlands in North Dakota to determine if this management technique is providing desired results to create conditions for ideal vegetation communities in wetlands that will benefit wildlife. This project consists of vegetation surveys from seasonal wetlands located in Benson, Eddy. Towner. and Wells counties in North Dakota. Three types of wetlands were surveyed: natural (reference), excavated (treatment), and converted cropland. Vegetation surveys were completed in the shallow marsh and wet meadow zones of seasonal wetlands. Sites were sampled using a modified Daubenmire method. Aerial photos were assessed to determine the occurrence of drawdown cycles in wetland sites. Plant communities were analyzed using non-metric multidimensional scaling and multi-response permutation procedure was used to make comparisons between sites. The wet meadow zones and shallow marsh zones of the three types of wetlands were all significantly different (p<0.016) from one another. In general, restored wetlands show vegetation trends that liken natural wetlands while those that have been allowed to recover without restoration tend to be cattail choked. When examining hybrid cattail specifically visual obstruction scores were approximately four times greater in converted cropland sites versus treatment or reference sites. Vegetation composition indicates hydrologic conditions (fresh to brackish conditions) of specific sites and regional distribution are likely influential factors in wetland plant establishment.
North Dakota State University
U.S. Fish and Wildlife Service
Ducks Unlimited
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Grace, Kevin. "Phosphorus removal and soil stability within emergent and submerged vegetation communities in treatment wetlands." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001219.

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Books on the topic "Vegetation removal"

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Conard, Susan G. Abies concolor growth responses to vegetation changes following shrub removal, northern Sierra Nevada, California. Albany, Calif: U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1993.

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Maranto, J. Chris. Response of douglas-fir advance regeneration to overstory removal. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2008.

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Jaramillo, Annabelle E. Growth of Douglas-fir in southwestern Oregon after removal of competing vegetation. Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1988.

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Jaramillo, Annabelle E. Growth of Douglas-fir in southwestern Oregon after removal of competing vegetation. Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1988.

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Jaramillo, Annabelle E. Growth of Douglas-fir in southwestern Oregon after removal of competing vegetation. Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1988.

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Olsson, Bengt. Soil and vegetation changes after clear-felling coniferous forests: Effects of varying removal of logging residues. Uppsala: Swedish University of Agricultural Sciences, Dept. of Ecology and Environmental Research, 1995.

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Mueller, Karl W. 1997 Silver Lake survey: The forage fish community after removal of aquatic vegetation by grass carp. Olympia, Wash: Warmwater Enhancement Program, Washington Dept. of Fish and Wildlife, 1998.

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Devine, Warren D. Effects of vegetation control and organic matter removal on soil water content in a young Douglas-fir plantation / Warren D. Devine, Constance A. Harrington. Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2006.

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Devine, Warren D. Effects of vegetation control and organic matter removal on soil water content in a young Douglas-fir plantation / Warren D. Devine, Constance A. Harrington. Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2006.

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Devine, Warren D. Effects of vegetation control and organic matter removal on soil water content in a young Douglas-fir plantation / Warren D. Devine, Constance A. Harrington. Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2006.

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Book chapters on the topic "Vegetation removal"

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Dunderdale, J. A. L., and J. Morris. "The economics of aquatic vegetation removal in rivers and land drainage systems." In Management and Ecology of Freshwater Plants, 157–61. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5782-7_25.

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Nur Fadzeelah, A. K., J. Lynna Juliana, and A. Muhammad Habibuddin. "Heavy Metal Removal Using Cabomba Caroliniana as Submerged Vegetation Species in Constructed Wetland." In InCIEC 2014, 397–405. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-290-6_34.

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Yeakley, J. A., J. L. Meyer, and W. T. Swank. "Hillslope Nutrient Flux During Near-Stream Vegetation Removal I. A Multi-Scaled Modeling Design." In Wetlands of the Interior Southeastern United States, 33–50. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-6579-2_4.

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Svedin, Christer, Sofia Kallner Bastviken, and Karin S. Tonderski. "Cold Season Nitrogen Removal in a High Loaded Free Water Surface Wetland with Emergent Vegetation." In Wastewater Treatment, Plant Dynamics and Management in Constructed and Natural Wetlands, 223–36. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8235-1_20.

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Penczak, Tadeusz. "Effects of removal and regeneration of bankside vegetation on fish population dynamics in the Warta River, Poland." In The Importance of Aquatic-Terrestrial Ecotones for Freshwater Fish, 207–10. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-3360-1_19.

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Drizo, Aleksandra, Eric Seitz, Eamon Twohig, David Weber, Simon Bird, and Donald Ross. "The Role of Vegetation in Phosphorus Removal by Cold Climate Constructed Wetland: The Effects of Aeration and Growing Season." In Wastewater Treatment, Plant Dynamics and Management in Constructed and Natural Wetlands, 237–49. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8235-1_21.

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Madritch, Michael, Jeannine Cavender-Bares, Sarah E. Hobbie, and Philip A. Townsend. "Linking Foliar Traits to Belowground Processes." In Remote Sensing of Plant Biodiversity, 173–97. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33157-3_8.

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AbstractAbove- and belowground systems are linked via plant chemistry. In forested systems, leaf litter chemistry and quality mirror that of green foliage and have important afterlife effects. In systems where belowground inputs dominate, such as grasslands, or in ecosystems where aboveground biomass is frequently removed by burning or harvesting, foliar traits may provide important information regarding belowground inputs via exudates and fine-root turnover. Many, if not most, of the plant traits that drive variation in belowground processes are also measurable via remote sensing technologies. The ability of remote sensing techniques to measure fine-scale biodiversity and plant chemistry over large spatial scales can help researchers address ecological questions that were previously prohibitively expensive to address. Key to these potential advances is the idea that remotely sensed vegetation spectra and plant chemistry can provide detailed information about the function of belowground processes beyond what traditional field sampling can provide.
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"removal of vegetation." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1104. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_181561.

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"6766 vegetation removal [n] for replanting." In Encyclopedic Dictionary of Landscape and Urban Planning, 1091. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_15728.

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Graf, William L. "Reparian Vegetation." In Plutonium and the Rio Grande. Oxford University Press, 1995. http://dx.doi.org/10.1093/oso/9780195089332.003.0011.

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The interaction among water, sediment, landforms, and human environmental manipulation on the Northern Rio Grande has produced a distinctive assemblage of plants in the riparian (or near-channel) community. The fluvial landforms and the sediment of which they are composed are often not immediately visible in field investigations because of the dense cover of riparian vegetation. In aerial photography—the primary source of data for historical river-channel change and sedimentation- riparian vegetation is often the only aspect of the near-channel environment that is amenable to interpretation and mapping. Vegetation also provides information about the date of emplacement of the sediments on which it grows, information useful in tracking contaminants introduced into the system during known time periods. Vegetation communities therefore provide useful keys to identifying the distribution of near-channel sediments and the contaminants they contain. This chapter briefly reviews the origin and changes in riparian vegetation in the study area, including its connections with geomorphic systems. Almost all major rivers in the American Southwest have undergone considerable geomorphic and vegetation change since the early nineteenth century when channel margins were the sites of bogs, lakes, abandoned meanders (sloughs), and marshes. Most major rivers had broad, sandy channels with braided configurations and meandering low-flow channels. Even small tributaries had marshy areas created by beavers. The riparian vegetation originally evolved in association with frequent extensive flooding. Removal of the beavers, the development of gullies and arroyos, land-management schemes, changes in climate, and the construction of dams changed the streams into single-thread or compound channels that flooded less often. The Rio Grande’s recent history is typical of the larger region except for the extensive recent engineering works that restrict the active channel and flood plains. There are few detailed descriptions of the channel and riparian vegetation before major human intervention, but generally, most firsthand observers indicate that the Northern Rio Grande was broad and shallow, with meandering subchannels frequently altered by flooding. After channel migration, cottonwood, willow, and cattail colonized the newly exposed alluvial surfaces. Early in the twentieth century, the cottonwood groves near the river rarely developed trees more than about 10 m high before more changes in the channel destroyed them.
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Conference papers on the topic "Vegetation removal"

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Fassman, Elizabeth A., and Shaw L. Yu. "Comparison of Pollutant Removal Performance of Wetland Vegetation." In World Water and Environmental Resources Congress 2001. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40569(2001)172.

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Castro, Ian O., Brooke E. Crowley, Steven M. Goodman, and Alaina C. Strand. "DOES VEGETATION REMOVAL INFLUENCE BIOAVAILABLE STRONTIUM ISOTOPE RATIOS (87SR/86SR)?" In 50th Annual GSA North-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016nc-275124.

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Jianbo Hu, Wei Chen, Xiaoyu Li, and Xingyuan He. "Roof confusion removal for accurate vegetation extraction in the urban environment." In 2008 International Workshop on Earth Observation and Remote Sensing Applications (EORSA). IEEE, 2008. http://dx.doi.org/10.1109/eorsa.2008.4620309.

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CALVANI, GIULIO, PAOLO PERONA, HANS MATTHIAS SCHÖNIGER, LUCA ., and SOLARI . "A STOCHASTIC APPROACH TO SCOURING EVENTS PROMOTING REMOVAL OF RIPARIAN VEGETATION." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-1819.

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Platonov, A. "RECOMMENDATIONS FOR CORRECTING THE DEGREE OF DISTRIBUTION OF TECHNOLOGICAL PROCESSES OF VEGETATION REMOVAL FROM THE TERRITORIES OF LINEAR INFRASTRUCTURAL FACILITIES." In Modern machines, equipment and IT solutions for industrial complex: theory and practice. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mmeitsic2021_93-100.

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With the maintenance of transport networks in proper condition, the problem of removing unwanted tree and shrub vegetation continues to be relevant. Work on cleaning the territories of the relevant infrastructure facilities from undesirable vegetation can be performed both manually and mechanically with the involvement of various machines, mechanisms and equipment. Considering that at present, when removing unwanted tree and shrub vegetation from the territories of linear infrastructure facilities, a total of more than 50 technological processes are used, the purpose of the study was to identify the possibility of adjusting the degree of their prevalence by types of infrastructure facilities. The article provides a formula for establishing the degree of prevalence of the technological process of removing vegetation along linear infrastructural objects, the distribution of the specified degree by the sites of impact on unwanted vegetation is presented, the content of the corresponding technological processes is disclosed, recommendations are proposed for adjusting the degree of prevalence of technological processes for removing vegetation from the territories of linear infrastructure facilities. The results of the study can be used by industrial enterprises performing work to maintain the territory of transport infrastructure facilities in a standard condition.
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Wieting, Celeste, Sara L. Rathburn, and Jonathan M. Friedman. "QGG J. HOOVER MACKIN AWARD: CHANNEL MORPHOLOGIC CHANGE ASSOCIATED WITH INVASIVE VEGETATION REMOVAL." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-355606.

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Zhao, Hengqian, Lifu Zhang, and Xuesheng Zhao. "Mineral absorption feature extraction in vegetation covered region based on reference spectral background removal." In 2016 8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). IEEE, 2016. http://dx.doi.org/10.1109/whispers.2016.8071702.

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Lisius, Grace L., Noah P. Snyder, and Mathias J. Collins. "VEGETATION COMMUNITY RESPONSE TO GEOMORPHIC AND HYDROLOGIC CHANGES FOLLOWING DAM REMOVAL IN A NEW ENGLAND RIVER." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272410.

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Pierzgalski, Kristian, Hanna Obarska-Pempkowiak, Ewa Wojciechowska, and Magdalena Gajewska. "Application of Vertical Reed Beds as a Buffer for Effluent from SBR ANAMMOX Treatment for Reject Water from Centrifugation." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.086.

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The main purpose of this study is to determine the removal efficiency of nitrogen compounds in the effluent from ANAMMOX process used to treat reject water after centrifugation. A pilot model was bulit consisting of four different Treatment Wetlands beds with different filter substrate and with or without macrophytes growth. Vertical subsurface flow type filters have been choosen thanks to their highest efficiency in NH4-N removal and better resistance to high fluctuations of influent composition. The pilot was feed with synthetic sewage prepaired on-site every day during the study. Samples have been taken for analysis to determine the changes of NH4-N, NO3-N and NO2-N in the effluent of each filter. In bed “0” the removal of nitrogen compounds was caused only by sorption and lasted till its capacity was reached. In bed “I” and “II” the NH4-N concentration in effluent and production of NO2-N with simultaneous changes of NO3-N indicated that nitrification was occurring. Furthermore assimilation by plants and sorption processes by sub-strate contributet to the removal of nitrogen compunds. The investigation reviles different pattern of processes respon-sible for N - compounds transformation and removal, depending on the bed substrate and vegetation or without vegeta-tion
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Gonnelli, Vincenzo. "Impact of wild herbivores grazing on herbaceous vegetation and shrubs at the silvers fir forest of the Riserve Naturali Casentinesi: removal of biomass, alteration of vegetation dynamics, simplification of flora and impact on forest regeneration." In Secondo Congresso Internazionale di Selvicoltura = Second International Congress of Silviculture. Accademia Italiana di Scienze Forestali, 2015. http://dx.doi.org/10.4129/2cis-vg-imp.

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Reports on the topic "Vegetation removal"

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Jaramillo, Annabelle E. Growth of Douglas-fir in Southwestern Oregon after removal of competing vegetation. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1988. http://dx.doi.org/10.2737/pnw-rn-470.

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Ramsey, Greer. An Analysis of Vegetation Recovery following Dam Removal at Hemlock Recreation Site, Washington. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2002.

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Alban, David H., George E. Host, John D. Elioff, and David A. Shadis. Soil and vegetation response to soil compaction and forest floor removal after aspen harvesting. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station, 1994. http://dx.doi.org/10.2737/nc-rp-315.

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Conard, Susan G., and Steven R. Sparks. Abies concolor growth responses to vegetation changes following shrub removal, northern Sierra Nevada, California. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1993. http://dx.doi.org/10.2737/psw-rp-218.

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Rohdy, Stephanie. Soil Development and Vegetation Response to Removal of a Small Dam, Lassen Volcanic National Park, California. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.1513.

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Schad, Aaron, Gary Dick, Kris Erickson, Paul Fuhrmann, and Lynde Dodd. Vegetation community changes in response to phragmites management at Times Beach, Buffalo, New York. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42149.

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Management of invasive phragmites (Phragmites australis [Cav.] Trin. Ex Steud.) in the United States has proven challenging over the last several decades. Various methods for control exist, but integrated approaches appear to have the most success. However, documentation of vegetation community–wide responses to these approaches remains limited. This study monitored plant community changes at Times Beach, New York, over a five-year period. In concert with mowing and thatch removal in all areas, the study evaluated two herbicides separately and together, representing three experimental treatment areas (TAs), for control efficacy by measuring plant community structure. Phragmites was targeted for treatments, avoiding native and nonproblematic non-native species when possible, to preserve beneficial habitat during phragmites control efforts. Monitoring results showed significant drops in phragmites relative cover, relative frequency, and importance values due to integrated management, regardless of herbicide treatment, with corresponding increases in these same values for native and other plant species. This suggests that prudent removal of phragmites is compatible with beneficial plant restorative efforts to maintain and improve habitat in infested areas.
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Sackschewsky, Michael R. BIOLOGICAL REVIEW OF THE VEGETATION REMOVAL ON 218-W-6, 200 West Area, ECR No.2002-200-031. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/15010289.

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Devine, Warren D., and Constance A. Harrington. Effects of vegetation control and organic matter removal on soil water content in a young Douglas-fir plantation. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2006. http://dx.doi.org/10.2737/pnw-rp-568.

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Short, Mary, and Sherry Leis. Vegetation monitoring in the Manley Woods unit at Wilson’s Creek National Battlefield: 1998–2020. Edited by Tani Hubbard. National Park Service, June 2022. http://dx.doi.org/10.36967/nrr-2293615.

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Natural resource management at Wilson’s Creek National Battlefield (NB) is guided by our understanding of the woodlands and prairies at the time of the Civil War battle in 1861. This report is focused on the Manley Woods unit of the park. This unit is an oak-hickory woodland in the Springfield Plain subsection of the Ozarks. Canopy closure for Missouri oak woodlands can be highly variable and ranges from 30–100% across the spectrum of savanna, open woodland, and closed woodland types. In 1861, the woodland was likely a savanna community. Changes in land use (e.g., fire exclusion) caused an increase in tree density in woodlands at Wilson’s Creek NB and across the Ozarks. Savannas and open woodlands transitioned to closed canopy woodlands over time. Park management plans include restoring the area to a savanna/open woodland structure. Prescribed fire was reintroduced to Wilson’s Creek NB in 1988 and continues as the primary mechanism for reducing the tree canopy. The Manley Woods unit of Wilson’s Creek NB has been subject to intense natural and anthropogenic disturbance events such as a tornado in 2003, timber removal in 2005, prescribed fires in 2006, 2009, and 2019, an ice storm in 2007, and periodic drought. The Heartland Inventory and Monitoring Network (hereafter, Heartland Network) installed four permanent monitoring sites within the Manley Woods area of the park in 1997. Initially, we assessed ground flora and regeneration within the sites (1998–1999). We added fuel sampling after the 2003 tornado. Although overstory sampling occurred prior to the tornado, the protocol was not yet stabilized and pre-2003 overstory data were not included in these analyses. In this report, we focus on the overstory, tree regeneration, and ground cover metrics; ground flora data will be assessed in future analyses. Heartland Network monitoring data reveal that Manley Woods has undergone substantial change in canopy cover and midstory trees since 1998. While basal area and density metrics classify Manley Woods as an open woodland, the closed canopy of the midstory and overstory reveal a plant community that is moving toward closed woodland or forest structure. The most recent fire in 2019 was patchy and mild, resulting in continued increases in fuels. Ground cover metrics indicate infrequent disturbance since leaf litter continued to increase. Management objectives to restore savanna or woodland composition and structure to the Manley Woods overstory, regeneration layer, and ground cover will require implementation of prescribed fire in the future. Repeated fires can thin midstory trees and limit less fire tolerant early seral species. Additionally, mechanical or chemical treatments to reduce undesirable tree species should be considered for woodland restoration. Decreasing canopy closure is an important and essential step toward the restoration of a functioning savanna/open woodland plant community in Manley Woods. Treatments that thin the midstory and reduce fuel loading will also benefit these plant communities. With the anticipated changing climate, maintaining an open woodland community type may also provide resilience through management for native species tolerant of increasingly warmer temperatures.
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Bowles, David, Michael Williams, Hope Dodd, Lloyd Morrison, Janice Hinsey, Tyler Cribbs, Gareth Rowell, Michael DeBacker, Jennifer Haack-Gaynor, and Jeffrey Williams. Protocol for monitoring aquatic invertebrates of small streams in the Heartland Inventory & Monitoring Network: Version 2.1. National Park Service, April 2021. http://dx.doi.org/10.36967/nrr-2284622.

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The Heartland Inventory and Monitoring Network (HTLN) is a component of the National Park Service’s (NPS) strategy to improve park management through greater reliance on scientific information. The purposes of this program are to design and implement long-term ecological monitoring and provide information for park managers to evaluate the integrity of park ecosystems and better understand ecosystem processes. Concerns over declining surface water quality have led to the development of various monitoring approaches to assess stream water quality. Freshwater streams in network parks are threatened by numerous stressors, most of which originate outside park boundaries. Stream condition and ecosystem health are dependent on processes occurring in the entire watershed as well as riparian and floodplain areas; therefore, they cannot be manipulated independently of this interrelationship. Land use activities—such as timber management, landfills, grazing, confined animal feeding operations, urbanization, stream channelization, removal of riparian vegetation and gravel, and mineral and metals mining—threaten stream quality. Accordingly, the framework for this aquatic monitoring is directed towards maintaining the ecological integrity of the streams in those parks. Invertebrates are an important tool for understanding and detecting changes in ecosystem integrity, and they can be used to reflect cumulative impacts that cannot otherwise be detected through traditional water quality monitoring. The broad diversity of invertebrate species occurring in aquatic systems similarly demonstrates a broad range of responses to different environmental stressors. Benthic invertebrates are sensitive to the wide variety of impacts that influence Ozark streams. Benthic invertebrate community structure can be quantified to reflect stream integrity in several ways, including the absence of pollution sensitive taxa, dominance by a particular taxon combined with low overall taxa richness, or appreciable shifts in community composition relative to reference condition. Furthermore, changes in the diversity and community structure of benthic invertebrates are relatively simple to communicate to resource managers and the public. To assess the natural and anthropo-genic processes influencing invertebrate communities, this protocol has been designed to incorporate the spatial relationship of benthic invertebrates with their local habitat including substrate size and embeddedness, and water quality parameters (temperature, dissolved oxygen, pH, specific conductance, and turbidity). Rigid quality control and quality assurance are used to ensure maximum data integrity. Detailed standard operating procedures (SOPs) and supporting information are associated with this protocol.
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