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Articles 361 - 390 of 400
Full-Text Articles in Natural Resources and Conservation
Prison Siting In Appalachia: Carceral Expansion, Neoliberalism, And Environmental Harm, Macey Logan Hall
Prison Siting In Appalachia: Carceral Expansion, Neoliberalism, And Environmental Harm, Macey Logan Hall
Online Theses and Dissertations
Since 1991, 14 state and federal prisons have been built in Appalachia with a recent proposal for a federal prison to be constructed in Letcher County, KY. Contradicting the narrative that Appalachia remains separated from the national economy, the ills of carceral growth are apparent throughout the region. This study examines the proposal to build a federal prison in Letcher County, KY. The purpose of this study is to gain further insight into the impact that the carceral state, including its promise of economic development, has on environmental harm and land exploitation in the region. The proposed federal prison would …
The Role Of Continuous Flowering Phenology For In Neotropical Plant-Pollinator Interactions For Use In Conservation, Chelsea Renee Hinton
The Role Of Continuous Flowering Phenology For In Neotropical Plant-Pollinator Interactions For Use In Conservation, Chelsea Renee Hinton
Online Theses and Dissertations
The diversity of mutualistic interactions in the Neotropics exceeds that of all other tropical regions and is posited to result from a unique assemblage of plant species that produce the highest spatio-temporal predictability of food resources. A rare component of the Neotropical flora that contributes largely to the spatio-temporal predictability of food resources is found in understory shrub or tree-let species with a continuous reproductive phenology (i.e. produce fruit and flowers daily during all months of the year). Plant-animal interaction science suggests that plant species with a longer duration of reproductive phenology will accumulate more mutualistic partners over time and …
Factors Influencing Survival, Productivity, And Population Growth Of Eastern Wild Turkeys In Northeastern South Dakota, Reina M. Tyl
Factors Influencing Survival, Productivity, And Population Growth Of Eastern Wild Turkeys In Northeastern South Dakota, Reina M. Tyl
Graduate Theses, Dissertations, and Problem Reports (ETD)
The population of eastern wild turkeys in northeastern South Dakota appeared to be expanding soon after reintroduction in the 1990s, however, recent harvest trends suggest declining abundance in the region. Spring turkey hunting expenditures are projected to be around $6.5 million in South Dakota, with about $3 million of those expenditures occurring within the northeastern prairie region. However, the number of birds harvested during the spring prairie firearm season has been declining since 2010. Due to concerns about a declining population, the autumn hunting season was closed in 2014. The cause of the apparent decline is unclear. Updated demographic information …
Using Lidar To Approximate Keystone Structure And Evaluate Management Practices In Potential Habitats Of The Endangered Karner Blue Butterfly (Lycaeides Melissa Samuelis), Brandyn Balch
Graduate Theses, Dissertations, and Problem Reports (ETD)
Keystone structure is the spatial structure required by a given species, at a scale that is determined by that species’ needs and mobility. The endangered Karner blue butterfly (Lycaeides melissa samuelis, hereafter KBB) has a keystone structure that incorporates trees and bushes to provide the mixture of sun and shade required to fulfil its life functions. Airborne light detection and ranging (lidar) is a potentially invaluable tool for characterizing keystone structures. However, lidar has yet to be utilized to evaluate structural suitability of KBB habitats. Therefore, I investigated the use of lidar for characterizing critical attributes of KBB habitat structure, …
An Assessment Of Farmer Participation In The United States Department Of Agriculture, Natural Resources Conservation Services’ Conservation Technical Assistance Program In West Virginia, Matt D. Oliver
Graduate Theses, Dissertations, and Problem Reports (ETD)
Food and fiber production on America’s farmlands have a major influence on the environment, therefore, soil and water conservation practices are critical. NRCS has provided no-fee technical assistance for nearly 100 years through the Conservation Technical Assistance (CTA) program. The CTA program is essential because it provides technical knowledge directly to farmers for planning and implementing conservation practices that are proven to benefit environmental health and on-farm production. CTA program funds support NRCS staff and training and are thereby the local service delivery vehicle for all NRCS programs. However, in recent years, funding for CTA has remained relatively constant while …
On The Brink Of Extinction: The Fate Of The Pacific Northwest's Southern Resident Killer Whales, Sabrina Wilk
On The Brink Of Extinction: The Fate Of The Pacific Northwest's Southern Resident Killer Whales, Sabrina Wilk
Pomona Senior Theses
The killer whales that roam the northeastern Pacific Ocean have been the objects of studies since the 1970s, making them the most well-studied population of orcas in the world. Three distinct ecotypes of killer whales (Orcinus orca), known as residents, transients, and offshores, share these waters. The ecotypes are morphologically and behaviorally distinct to the extent that some scientists consider them separate species, with residents eating salmon, transients specializing on marine mammals, and offshores preferring Pacific sleeper sharks and Pacific halibut. Resident populations have endeared themselves to the region's locals with their striking black and white markings and …
American White Pelican (Pelecanus Erythrorhynchos) Growth, Nutrition And Immunology, Treena L. Ferguson, Brian J. Rude, D. Tommy King
American White Pelican (Pelecanus Erythrorhynchos) Growth, Nutrition And Immunology, Treena L. Ferguson, Brian J. Rude, D. Tommy King
United States Department of Agriculture Wildlife Services: Staff Publications
Limited information about nutrition exists on American White Pelicans (Pelecanus erythrorhynchos) from hatching to fledging. To detail immunity, metabolism and nutrition of juvenile American White Pelicans, during 22-23 July 2011, 103 samples of regurgitate matter were collected at five Chase Lake, North Dakota, USA, and three Bitter Lake, South Dakota, USA, sub-colonies. Regurgitate sample nutrient content was significantly different for organic matter (P = 0.012), crude protein (P = 0.001), neutral detergent fiber (P = 0.014), acid detergent fiber (P = 0.005) and energy (P = 0.034) between North (n = 5) …
Isolation Of Rabies Virus From The Salivary Glands Of Wild And Domestic Carnivores During A Skunk Rabies Epizootic, Cornell University Jimenez, Terry R. Spraker, Jessica Anderson, Richard Bowen, Amy Gilbert
Isolation Of Rabies Virus From The Salivary Glands Of Wild And Domestic Carnivores During A Skunk Rabies Epizootic, Cornell University Jimenez, Terry R. Spraker, Jessica Anderson, Richard Bowen, Amy Gilbert
United States Department of Agriculture Wildlife Services: Staff Publications
Rabies is a fatal zoonotic disease of global importance. Rabies virus is shed in the saliva of infected hosts and is primarily transmitted through bite contact. Canine rabies has been eliminated from the US, but wildlife constitutes more than 90% of the reported cases of animal rabies in the US each year. In the US, several wild carnivore species are reservoirs of distinct variants of rabies virus (RV). After decades of apparent absence, the south-central skunk (SCSK) RV variant was detected in Colorado in 2007 and resulted in a large-scale epizootic in striped skunk (Mephitis mephitis) populations in northern Colorado …
Predation And Disease-Related Economic Impacts Of Wild Pigs On Livestock Producers In 13 States, Aaron M. Anderson, Chris Slootmaker, Erin Harper, Ryan S. Miller, Stephanie A. Shwiff
Predation And Disease-Related Economic Impacts Of Wild Pigs On Livestock Producers In 13 States, Aaron M. Anderson, Chris Slootmaker, Erin Harper, Ryan S. Miller, Stephanie A. Shwiff
United States Department of Agriculture Wildlife Services: Staff Publications
We report the results of a survey on wild pigs (Sus scrofa) damage to livestock producers in 13 US states (Alabama, Arkansas, California, Florida, Georgia, Louisiana, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, Texas). The survey was distributed by the USDA National Agricultural Statistical Service in the summer of 2017 to a sample of livestock producers in the 13-state region. Findings indicate that predation and disease-related damage can be substantial in certain states and for certain types of livestock. In particular, damage to cattle operations in Texas and Arkansas was substantially higher than damage in other states …
Taking The Bait: Species Taking Oral Rabies Vaccine Baits Intended For Raccoons, Betsy S. Haley, Are R. Berentsen, Richard M. Engeman
Taking The Bait: Species Taking Oral Rabies Vaccine Baits Intended For Raccoons, Betsy S. Haley, Are R. Berentsen, Richard M. Engeman
United States Department of Agriculture Wildlife Services: Staff Publications
Raccoon rabies in eastern USA is managed by strategically distributing oral rabies vaccine (ORV) baits. The attractiveness, palativity, density, and non-target species bait take affect ORV effectiveness. We examined raccoon and non-target species differences in investigating/removing fish-meal polymer and coated sachet baits applied to simulate two aerial bait distribution densities. Bait densities of 150 baits/km2 and 75 baits/km2 were evaluated, respectively, in zones expected to have high and low
Racc oon densities. Three primary non-target species visited baits: coyotes, white-tailed deer, and feral swine. The proportion of bait stations visited by raccoons during 1 week observation periods ranged from 50 …
In Situ Evaluation Of An Automated Aerial Bait Delivery System For Landscape-Scale Control Of Invasive Brown Treesnakes On Guam, Shane Siers, Will Pitt, John Eisemann, Larry Clark, Aaron B. Shiels, C. S. Clark, R. J. Gosnell, M. C. Messaros
In Situ Evaluation Of An Automated Aerial Bait Delivery System For Landscape-Scale Control Of Invasive Brown Treesnakes On Guam, Shane Siers, Will Pitt, John Eisemann, Larry Clark, Aaron B. Shiels, C. S. Clark, R. J. Gosnell, M. C. Messaros
United States Department of Agriculture Wildlife Services: Staff Publications
After decades of biodiversity loss and economic burden caused by the brown treesnake invasion on the Pacific island of Guam, relief hovers on the horizon. Previous work by USDA Wildlife Services (WS) and its National Wildlife Research Center (NWRC) demonstrated that brown treesnake numbers in forested habitats can be dramatically suppressed by aerial delivery of dead newborn mouse (DNM) baits treated with 80 mg of acetaminophen. However, manual bait preparation and application is impractical for landscape-scale treatment. WS, NWRC, and the US Department of the Interior have collaborated with Applied Design Corporation to engineer an automated bait manufacturing and delivery …
Persistence And Conspecific Observations Improve Problem-Solving Abilities Of Coyotes, Julie K. Young, Laura Touzot, Stacey P. Brummer
Persistence And Conspecific Observations Improve Problem-Solving Abilities Of Coyotes, Julie K. Young, Laura Touzot, Stacey P. Brummer
United States Department of Agriculture Wildlife Services: Staff Publications
Social learning has important ecological and evolutionary consequences but the role of certain factors, such as social rank, neophobia (i.e., avoidance of novel stimuli), persistence, and task-reward association, remain less understood. We examined the role of these factors in social learning by captive coyotes (Canis latrans) via three studies. Study 1 involved individual animals and eliminated object neophobia by familiarizing the subjects to the testing apparatus prior to testing. Studies 2 and 3 used mated pairs to assess social rank, and included object neophobia, but differed in that study 3 decoupled the food reward from the testing apparatus (i.e., altered …
Experimental Infections Of Norway Rats With Avian‑Derived Low‑Pathogenic Influenza A Viruses, Kaci K. Vandalen, Nicole M. Nemeth, Nicholas O. Thomas, Nicole L. Barrett, Jeremy W. Ellis, Heather J. Sullivan, Alan B. Franklin, Susan A. Shriner
Experimental Infections Of Norway Rats With Avian‑Derived Low‑Pathogenic Influenza A Viruses, Kaci K. Vandalen, Nicole M. Nemeth, Nicholas O. Thomas, Nicole L. Barrett, Jeremy W. Ellis, Heather J. Sullivan, Alan B. Franklin, Susan A. Shriner
United States Department of Agriculture Wildlife Services: Staff Publications
Influenza A viruses (IAVs) are a public-health, veterinary, and agricultural concern. Although wild birds are considered the primary reservoir hosts for most IAVs, wild-bird IAV strains are known to spill over into poultry, domestic or wild mammals, and humans. Occasionally, spillover events may result in adaptation or reassortment with other strains. Moreover, some IAV strains found in wild waterfowl mutate into highly pathogenic forms in poultry, causing tremendous economic losses. When domestic animals, wildlife, and humans dwell in close proximity to each other, such as may be the case with agricultural operations, wildlife may represent a potential risk for interspecies …
Movement Responses Inform Effectiveness And Consequences Of Baiting Wild Pigs For Population Control, Nathan P. Snow, Kurt C. Vercauteren
Movement Responses Inform Effectiveness And Consequences Of Baiting Wild Pigs For Population Control, Nathan P. Snow, Kurt C. Vercauteren
United States Department of Agriculture Wildlife Services: Staff Publications
Wild pigs (Sus scrofa) damage agricultural and natural resources throughout their nearly global distribution. Subsequently, population control activities (e.g., trapping, shooting, or toxic baiting) frequently involve the deployment of bait to attract wild pigs. A better understanding of how wild pigs respond to bait sites can help maximize efficiency of baiting programs and identify any potential pitfalls. We examined the movement behaviors of 68 wild pigs during three stages of intensive baiting programs (i.e., 15 days each: prior, during, and post baiting) spread across two distinct study areas in southern and northern Texas, USA. We found that bait sites needed …
Raccoon (Procyon Lotor) Response To Ontario Rabies Vaccine Baits (Onrab) In St. Lawrence County, New York, Usa, Kerri Pedersen, Amy T. Gilbert, Kathleen M. Nelson, Daniel P. Morgan, Amy J. Davis, Kurt C. Vercauteren, Dennis Slate, Richard B. Chipman
Raccoon (Procyon Lotor) Response To Ontario Rabies Vaccine Baits (Onrab) In St. Lawrence County, New York, Usa, Kerri Pedersen, Amy T. Gilbert, Kathleen M. Nelson, Daniel P. Morgan, Amy J. Davis, Kurt C. Vercauteren, Dennis Slate, Richard B. Chipman
United States Department of Agriculture Wildlife Services: Staff Publications
Oral rabies vaccination (ORV) campaigns have been conducted annually in the US over the past two decades to prevent raccoon (Procyon lotor) rabies, which is enzootic along the eastern region of the country from southeastern Canada to Alabama. Because raccoon rabies has been eliminated from neighboring Canadian provinces, continued detection of the variant in the US is of concern due to the potential for infected raccoons to cross the border via the St. Lawrence River. Ontario Rabies Vaccine Baits (ONRAB) containing a live, recombinant human adenovirus expressing the rabies virus glycoprotein have been under experimental use in the …
Taking The Bait: Species Taking Oral Rabies Vaccine Baits Intended For Raccoons, Betsy S. Haley, Are R. Berentsen, Richard M. Engeman
Taking The Bait: Species Taking Oral Rabies Vaccine Baits Intended For Raccoons, Betsy S. Haley, Are R. Berentsen, Richard M. Engeman
United States Department of Agriculture Wildlife Services: Staff Publications
Raccoon rabies in eastern USA is managed by strategically distributing oral rabies vaccine (ORV) baits. The attractiveness, palativity, density, and non-target species bait take affect ORV effectiveness. We examined raccoon and non-target species differences in investigating/removing fish-meal polymer and coated sachet baits applied to simulate two aerial bait distribution densities. Bait densities of 150 baits/km2 and 75 baits/km2 were evaluated, respectively, in zones expected to have high and low raccoon densities. Three primary non-target species visited baits: coyotes, white-tailed deer, and feral swine. The proportion of bait stations visited by raccoons during 1 week observation periods ranged from …
Potential Role Of Wildlife In The Usa In The Event Of A Foot-And-Mouth Disease Virus Incursion, Vienna R. Brown, Sarah N. Bevins
Potential Role Of Wildlife In The Usa In The Event Of A Foot-And-Mouth Disease Virus Incursion, Vienna R. Brown, Sarah N. Bevins
United States Department of Agriculture Wildlife Services: Staff Publications
Foot-and-mouth disease (FMD) is caused by foot-and-mouth disease virus (FMDV) which affects domestic and wild cloven-hoofed species. The FMD-free status of the USA and the tremendous economic impact of a virus incursion motivated the development of this evaluation of the potential role of wildlife in the event of a virus introduction. Additionally, this manuscript contains a summary of US vulnerabilities for viral incursion and persistence which focuses specifically on the possible role of wildlife. The legal movement of susceptible live animals, animal products, by-products and animal feed containing animal products pose a risk of virus introduction and spread. Additionally, the …
Trail Cameras Are A Key Monitoring Tool For Determining Target And Non-Target Bait-Take During Rodent Removal Operations: Evidence From Desecheo Island Rat Eradication, Aaron B. Shiels, D. Will, C. Figuerola-Hernández, K.J. Swinnerton, S. Silander, C. Samra, G.W. Witmer
Trail Cameras Are A Key Monitoring Tool For Determining Target And Non-Target Bait-Take During Rodent Removal Operations: Evidence From Desecheo Island Rat Eradication, Aaron B. Shiels, D. Will, C. Figuerola-Hernández, K.J. Swinnerton, S. Silander, C. Samra, G.W. Witmer
United States Department of Agriculture Wildlife Services: Staff Publications
Efforts to remove invasive rodents (e.g. Rattus spp. and Mus musculus) from islands often use toxicant-laced baits containing the anticoagulants brodifacoum or diphacinone. Rodenticide baits are generally delivered through aerialor hand-broadcast, or in bait stations. These baits are not rodent-specific and are subject to non-target consumption or secondary exposure (e.g. an individual preying upon another individual that has consumed bait). During rodenticide applications, it is generally unknown which animals are visiting and consuming bait; and to quantify this, we recommend using trail cameras (e.g. Reconyxtm motion-activated infra-red) positioned to monitor individual bait pellets. To demonstrate the importance and effectiveness …
Black Bear Use Of Forest Roads In Western Washington, Gary W. Witmer
Black Bear Use Of Forest Roads In Western Washington, Gary W. Witmer
United States Department of Agriculture Wildlife Services: Staff Publications
Radiolocations (108) of 20 black bears were used to assess use or avoidance of 3 forest road types in western Washington. Distances of bears to each type of road were compared to distances of 108 random points using t-tests. Females and males avoided 2-lane roads, while only males avoided 1-lane roads, the most common road type in the area. Females, but not males, were located closer to overgrown, spur roads than expected. This road type has substantial cover of grasses, forbs, and berry-producing shrubs along with protective tree cover. This situation may provide easy travel for females along with security …
Home Range And Habitat Use Of West Virginia Canis Latrans (Coyote), Lauren M. Mastro, Dana J. Morin, Eric M. Gese
Home Range And Habitat Use Of West Virginia Canis Latrans (Coyote), Lauren M. Mastro, Dana J. Morin, Eric M. Gese
United States Department of Agriculture Wildlife Services: Staff Publications
Canis latrans (Coyote) has undergone a range expansion in the United States over the last century. As a highly opportunistic species, its home range and habitat use changes with ecological context. Coyotes were first reported in West Virginia in 1950 but were not commonly observed until the 1990s, and there is scant information on Coyotes in the region. We used telemetry data from 8 radiocollared Coyotes in West Virginia to estimate home-range size and third-order habitat selection. Home-range areas (95% utilization distributions; UDs) varied from 5.22 to 27.79 km2 (mean = 12.48 ± 2.61 km2), with highly concentrated use of …
The Role Of Scavenging In Disease Dynamics, Joaquín Vicente, Kurt C. Vercauteren
The Role Of Scavenging In Disease Dynamics, Joaquín Vicente, Kurt C. Vercauteren
United States Department of Agriculture Wildlife Services: Staff Publications
Contents
Introduction................ 161
The Use of Animal Remains and the Exposure of Scavengers to Disease........ 163
The Relevance of Scavenging for Pathogens to Spread and Persist.......... 166
Human Related Factors Resulting in Increased Risk for Disease Transmission Through Scavenging.............. 170
Management of Scavenging to Reduce Disease Risks.............. 173
Restoration of Large Predators.................. 174
Elimination of Hunting of Scavengers............ 174
Destruction of Big Game and Domestic Animal Carcasses........... 174
Restoration of the Effects of Overabundance............. 175
Excluding Mammalian and Avian Scavengers from Natural Carrions.......... 176
Excluding Mammalian and Avian Scavengers from Vulture Restaurants........... 176
Conclusions and Future Perspectives........... 178
References............... 178
Using Unmanned Aerial Vehicles For Bird Harassment On Fish Ponds, Ciera A. Rhoades, Peter J. Allen, D. Tommy King
Using Unmanned Aerial Vehicles For Bird Harassment On Fish Ponds, Ciera A. Rhoades, Peter J. Allen, D. Tommy King
United States Department of Agriculture Wildlife Services: Staff Publications
The effects of aquaculture decline on piscivorous birds in the Mississippi Delta concern catfish farmers, with possible increases in fish loss and disease transmission. Piscivorous birds quickly habituate to most current methods of harassment (loud noises and visual disturbances) leading to increased depredation and disease. Our study was designed to test the efficacy of using unmanned aerial vehicles (UAVs) to effectively control piscivorous birds at fish farms. We hypothesized that a UAV would be more efficient at reducing the number of fish-eating birds on fish ponds than current forms of harassment. We conducted pre-treatment bird surveys, harassment observations, and post-treatment …
Locally Fixed Alleles: A Method To Localize Gene Drive To Island Populations, Jaye Sudweeks, Brandon Hollingsworth, Dimitri V. Blondel, Karl J. Campbell, Sumit Dhole, John D. Eisemann, Owain Edwards, John Godwin, Gregg R. Howald, Kevin P. Oh, Antoinette J. Piaggio, Thomas A.A. Prowse, Joshua V. Ross, J. Royden Saah, Aaron B. Shiels, Paul Q. Thomas, David W. Threadgill, Michael R. Vella, Fred Gould, Alun L. Lloyd
Locally Fixed Alleles: A Method To Localize Gene Drive To Island Populations, Jaye Sudweeks, Brandon Hollingsworth, Dimitri V. Blondel, Karl J. Campbell, Sumit Dhole, John D. Eisemann, Owain Edwards, John Godwin, Gregg R. Howald, Kevin P. Oh, Antoinette J. Piaggio, Thomas A.A. Prowse, Joshua V. Ross, J. Royden Saah, Aaron B. Shiels, Paul Q. Thomas, David W. Threadgill, Michael R. Vella, Fred Gould, Alun L. Lloyd
United States Department of Agriculture Wildlife Services: Staff Publications
Invasive species pose a major threat to biodiversity on islands. While successes have been achieved using traditional removal methods, such as toxicants aimed at rodents, these approaches have limitations and various off-target effects on island ecosystems. Gene drive technologies designed to eliminate a population provide an alternative approach, but the potential for drive-bearing individuals to escape from the target release area and impact populations elsewhere is a major concern. Here we propose the “Locally Fixed Alleles” approach as a novel means for localizing elimination by a drive to an island population that exhibits significant genetic isolation from neighboring populations. Our …
Livestock Guardian Dogs And Cattle Protection: Opportunities, Challenges, And Methods, Cat D. Urbigkit
Livestock Guardian Dogs And Cattle Protection: Opportunities, Challenges, And Methods, Cat D. Urbigkit
Human–Wildlife Interactions
Producer interest in using livestock guardian dogs (Canis lupus familiaris; LGDs) to protect domestic cattle (Bos taurus) is driven by expanding large carnivore predator populations and increased public concerns regarding lethal predator control in North America. However, few resources exist to guide livestock producers regarding the use of LGDs to protect cattle. This paper summarizes published information and personal ranch experiences regarding the use of LGDs to protect cattle, describes livestock-producer identified challenges to more widespread adoption of this method to deter predators, and provides guidelines for introducing pups to LGD-naïve cattle herds. I recommend more …
Growth And Survival Of Wild And Head-Started Blanding’S Turtles (Emydoidea Blandingii), Callie Klatt Golba
Growth And Survival Of Wild And Head-Started Blanding’S Turtles (Emydoidea Blandingii), Callie Klatt Golba
Graduate Research Theses & Dissertations
Blanding’s Turtles (IUCN Endangered) are long-lived reptiles with delayed sexual maturity. Anthropogenic landscape changes have increased threats to juvenile turtles, resulting in unnaturally low recruitment. Head-starting has become a popular conservation strategy that aims to increase juvenile recruitment by avoiding the increased predation of the vulnerable nest and hatchling age-class. However, there is still debate about whether or not it is an effective management tool. Assessments of head-starting are becoming more prevalent, but long-term studies are needed to critically evaluate the success of such interventions. In particular, information is needed on how head-starts fare compared to wild-born turtles. The Lake …
Ground Beetle Community Structure And Function In Restored Tallgrass Prairie, Melissa Nelson
Ground Beetle Community Structure And Function In Restored Tallgrass Prairie, Melissa Nelson
Graduate Research Theses & Dissertations
With the removal and destruction of natural areas for human use, there is a push to restore natural habitats. However, most restoration activities focus on reestablishing plant communities, while less is known about the recovery of organisms in higher trophic levels and their functional roles. Considering functional traits (those that explain an organisms’ response to environmental change and impacts on ecosystems) of restored communities may reveal how communities, and the ecosystem functions they drive, recover. Of particular interest are ground beetles (Coleoptera: Carabidae) because of their diversity and important ecological roles as consumers. This study focused on the ground beetle …
Identifying Priority Conservation Areas And Strategies For Myotis Sodalis (Chiroptera: Vespertilionidae) Via Habitat And Connectivity Modeling, Ashleigh B. Cable
Identifying Priority Conservation Areas And Strategies For Myotis Sodalis (Chiroptera: Vespertilionidae) Via Habitat And Connectivity Modeling, Ashleigh B. Cable
Masters Theses
Myotis sodalis, the Indiana bat, is a federally endangered bat species in the United States of America (USA). Conservation efforts are typically focused at identified maternity sites at local scales, however, the species is a regional migrant that interacts with its environment at multiple spatial scales. We are limited in our knowledge of landscape-level requirements of this species, especially in large areas such as Illinois, USA, where a wide range of environmental and landscape conditions exist. Many previous M. sodalis habitat studies have limited their focus to smaller spatial scales. Due to limitations in funding, personnel, and time, it …
A Multi-Scale Analysis Of Jaguar (Panthera Onca) And Puma (Puma Concolor) Habitat Selection And Conservation In The Narrowest Section Of Panama., Kimberly A. Craighead
A Multi-Scale Analysis Of Jaguar (Panthera Onca) And Puma (Puma Concolor) Habitat Selection And Conservation In The Narrowest Section Of Panama., Kimberly A. Craighead
Antioch University Dissertations & Theses
Over the past two centuries, large terrestrial carnivores have suffered extreme population declines and range contractions resulting from the synergistic anthropogenic threats of land-use change and indirect effects of climate change. In Panama, rapid land use conversion coupled with climate change is predicted to negatively impact jaguar (Panthera onca) and puma (Puma concolor). This dissertation examined the environmental variables and scales influencing jaguar and puma habitat selection by season (annual, wet, and dry), using multi-scale optimized habitat suitability models and a machine-learning algorithm (Random Forests), in the narrowest section of Panama. The models derived from the data of an intensive …
Fishers' Ecological Knowledge And Stable Isotope Analysis: A Social-Ecological Systems Approach To Endangered Species Conservation, Kathryn Rose Wedemeyer-Strombel
Fishers' Ecological Knowledge And Stable Isotope Analysis: A Social-Ecological Systems Approach To Endangered Species Conservation, Kathryn Rose Wedemeyer-Strombel
Open Access Theses & Dissertations
Identifying developmental habitat is essential for understanding population structure and species resiliency, especially for critically endangered species. In long-lived, oceanic, migratory animals such as sea turtles, elucidating developmental grounds is particularly difficult. When data are deficient or challenging to acquire, scientists often lean towards traditional quantitative methods when a social-ecological systems approach could better provide crucial baseline data and guiding information. Fishers ecological knowledge (FEK), the combination of experiential and culturally transmitted knowledge, is expert knowledge and should be treated as such. In 2008, FEK led to the rediscovery of the critically endangered eastern Pacific (EP) population of hawksbill sea …
Evaluation Of Private Landowner Intention To Create Early Successional Habitat In Virginia's Appalachian Region, Hannah M. Coovert
Evaluation Of Private Landowner Intention To Create Early Successional Habitat In Virginia's Appalachian Region, Hannah M. Coovert
Theses and Dissertations
As human land uses continue to expand rapidly across the landscape, the management practices of private landowners are an essential part of effective conservation of biodiversity. Conservation of early successional habitats (ESH) and the species that depend on them is a priority in the eastern United States, and efforts to create more ESH on private lands has primarily focused on forest landowners and the harvesting of timber. Private lands with significant pasture cover in a forested landscape present an additional opportunity to create and maintain ESH, yet our understanding of landowner values and attitudes about management strategies in pastures (i.e., …