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Articles 1 - 30 of 35
Full-Text Articles in Animal Sciences
Rabies Virus Serosurvey Of The Small Indian Mongoose (Urva Auropunctata) Across Multiple Habitats In Puerto Rico, 2014–21, Are R. Berentsen, Mel J. Rivera-Rodriguez, Fabiola B. Torres-Toledo, Amy J. Davis, Richard Chipman, Amy Gilbert
Rabies Virus Serosurvey Of The Small Indian Mongoose (Urva Auropunctata) Across Multiple Habitats In Puerto Rico, 2014–21, Are R. Berentsen, Mel J. Rivera-Rodriguez, Fabiola B. Torres-Toledo, Amy J. Davis, Richard Chipman, Amy Gilbert
USDA Wildlife Services: Staff Publications
The small Indian mongoose (Urva auropuncata) is a rabies reservoir in Puerto Rico and accounts for over 70% of reported animal rabies cases annually. The presence of rabies virus-neutralizing antibodies (RVNA) is often used as a tool to measure exposure to rabies virus in wildlife populations. We conducted a serosurvey of mongooses at 11 sites representing six habitat types across Puerto Rico. We collected a serum sample from 464 individual mongooses during 2014–2021. Overall, 80/464 (17.0%; 95% confidence interval, 14.1–20.9%; 55 male, 23 female, and two sexes not recorded) of individual mongooses sampled across all habitats were RVNA …
Vegetation And Nutritional Changes Over 20 Years Of White-Tailed Deer Exclusion, Gabrielle Nicole Ripa
Vegetation And Nutritional Changes Over 20 Years Of White-Tailed Deer Exclusion, Gabrielle Nicole Ripa
Theses and Dissertations
Knowledge of the impacts of white-tailed deer (Odocoileus virginianus; hereafter deer) as dominant herbivores throughout the Southeastern United States of America is lacking. To address this, three paired experimental units of exclosures and controls were constructed in 2000 on three Wildlife Management Areas across Mississippi within the ecoregions of the Upper Coastal Plain, Lower Coastal Plain, and the Mississippi Alluvial Valley. Vegetation was sampled in the summers of 2000, 2005, and 2021 including vegetation structure, canopy coverage, basal area, and species composition. Additionally, in 2005 and 2021, biomass was sampled to determine potential impacts on nutritional carrying capacity. Among the …
Contributions On The Southern Distribution Of Vespertilio Murinus Linnaeus, 1758 (Chiroptera: Vespertilionidae) From Türkiye, Ahmet Karataş, Şafak Bulut, Abdurrahman Sefali, Ferhat Toprak, Mehmet Kürşat Şahi̇n, Şaki̇r Önder Özkurt
Contributions On The Southern Distribution Of Vespertilio Murinus Linnaeus, 1758 (Chiroptera: Vespertilionidae) From Türkiye, Ahmet Karataş, Şafak Bulut, Abdurrahman Sefali, Ferhat Toprak, Mehmet Kürşat Şahi̇n, Şaki̇r Önder Özkurt
Turkish Journal of Zoology
Vespertilio murinus Linnaeus, 1758, has a wide distribution from France to Japan, and from Iran in the south to Scandinavia and Russia in the north. The only records of the parti-coloured bat, Vespertilio murinus known from Turkey so far were based on subfossils, remains from owl pellets, and ultrasound recordings. We present the first records of live individuals from two Turkish provinces, Ardahan and Bayburt. Additionally, based on echolocation call records, its known distribution in the Anatolian Peninsula was proved to be wider. The global distribution of the species has been mapped by using ecological niche modelling. The results revealed …
Intensive Hunting Pressure Changes Local Distribution Of Wild Boar, Jakub Drimaj, Jiří Kamler, Radim Plhal, Přemysl Janata, Zdeněk Adamec, Miloslav Homolka
Intensive Hunting Pressure Changes Local Distribution Of Wild Boar, Jakub Drimaj, Jiří Kamler, Radim Plhal, Přemysl Janata, Zdeněk Adamec, Miloslav Homolka
Human–Wildlife Interactions
Wild boar (Sus scrofa) is now an important species of wild ungulates in Central Europe. Next to conflicts of wild boar with agriculture, the main threat of wild boar presence lies in the expansion of African swine fever across Europe. The regulation of the wild boar population is complicated by the high reproduction rate and intelligent behavior of the species, which limits hunting effectiveness. We analyzed the spatial behavior of wild boar in an environment with a lack of natural food resources. The study area consisted of a forest complex (1,283 ha) with 2 areas. In the “risk” …
Larval Fish Sampling And Scaphirhynchus Sturgeon Drift Dynamics In The Mississippi And Missouri Rivers, Hae Hyun Kim
Larval Fish Sampling And Scaphirhynchus Sturgeon Drift Dynamics In The Mississippi And Missouri Rivers, Hae Hyun Kim
MSU Graduate Theses
Humans have been altering the natural ecosystem for centuries. These alterations provide many socioeconomic benefits (e.g., navigation and flood-control). However, these alterations can have negative ecological consequences. Large rivers across the country have been manipulated to facilitate various human activities. Rivers are dynamic systems governed by various abiotic and biotic factors. Ultimately these alterations change the natural biogeochemical cycles and reduce available habitats. These impacts likely affect riverine fishes’ ability to carry out their lifecycle. Riverine organisms, and particularly fish, have adapted to survive in free-flowing systems. Population dynamics (i.e., recruitment, growth and mortality) are the basis of fisheries management. …
Feeding Ecology, Behaviour And Habitat Utilization Of Black Drongo (Dicrurus Macrocercus) In Pothwar Plateau, Pakistan, Muhammad Bilal, Zeeshan Khalid, Ali Hasnain Mosvi, Amir Naseer
Feeding Ecology, Behaviour And Habitat Utilization Of Black Drongo (Dicrurus Macrocercus) In Pothwar Plateau, Pakistan, Muhammad Bilal, Zeeshan Khalid, Ali Hasnain Mosvi, Amir Naseer
Journal of Bioresource Management
Black Drongo is an insectivorous bird native to Pakistan. The present study focused on its feeding preferences, behaviour, ecology and habitat relationships. The study was carried out from first week of December, 2019 to the second week of April, 2020 in the two villages of Rawalpindi named as Daultala (Location-I) and Nata Gujarmall (Location-II). Observations were made by point count method on foot using line transect method. Air (52.27%) was the most commonly used feeding substrate. Aerial feeding mode (52.27%) is preferred over plant or tree gleaning (n=58) and ground feeding (n=47). Most common perching site was man made obstacle, …
Collective Effect Of Landfills And Landscape Composition On Bird–Aircraft Collisions, Morgan Pfeiffer, Bradley F. Blackwell, Travis L. Devault
Collective Effect Of Landfills And Landscape Composition On Bird–Aircraft Collisions, Morgan Pfeiffer, Bradley F. Blackwell, Travis L. Devault
USDA Wildlife Services: Staff Publications
Ninety-three percent of all reported bird strikes occur below 1,067 m, which based on the typical approach and departure angles of aircraft is within 8–13 km of an airport. Concomitantly, the Federal Aviation Administration and the International Civil Aviation Organization recommend that any feature that would attract hazardous wildlife to the approach and departure airspace be restricted. Thus, preventing the establishment of wildlife attractants, such as municipal solid waste landfills (MSWLFs) within 8 km or 13 km extents (U.S. and international recommendations, respectively) of airports, has been recommended to mitigate the risk of bird–aircraft collisions (strikes). However, robust evidence linking …
Habitat Utilization Of Field Rats In Crop Fields And Adjacent Natural Vegetation In District Rawalpindi, Ali Hasnain Mosvi, Jibran Haider, Amir Naseer, Abdullah Ibrahim
Habitat Utilization Of Field Rats In Crop Fields And Adjacent Natural Vegetation In District Rawalpindi, Ali Hasnain Mosvi, Jibran Haider, Amir Naseer, Abdullah Ibrahim
Journal of Bioresource Management
Current study was designed to assess habitat utilization of field rats in crop fields and adjacent natural vegetation in District Rawalpindi. The rodents are widely distributed and a serious agricultural pest in Pakistan. Relative abundance of rodent populations changes seasonally under field conditions. The field trials were conducted in district Rawalpindi of the Pothwar area, Pakistan. Wild vegetation plays an important role for providing shelter/cover to the rodent during non-crop season. The dominant wild vegetation recorded from field boundaries were: Cynodon dactylon, Achyranthes aspera, Aerva javanica Saccharum griffithii, Dactyloctenium aegyptium, Dichanthium annulatum, Desmostachya bipinnata, Imperata cylindrical, Ziziphus nummularia, Sorghum halepense …
Population Health Of Spotted Salamanders (Ambystoma Maculatum) In Created Vernal Pools: An Integrative Approach, Alice R. Millikin
Population Health Of Spotted Salamanders (Ambystoma Maculatum) In Created Vernal Pools: An Integrative Approach, Alice R. Millikin
Graduate Theses, Dissertations, and Problem Reports
Habitat creation is an important tool for conservation to counteract habitat loss and degradation. Vernal pools are susceptible to destruction due to limited detection, protection, and regulation. These wetlands provide fishless breeding habitat for many amphibian species including spotted salamanders (Ambystoma maculatum) in eastern North America. Determining whether created vernal pool habitat is successful is often determined by demographic data of colonizing populations. I suggest that hormone levels, population genetics, and disease prevalence can improve our understanding of population health in created habitat. The goal of this dissertation was to assess the health of spotted salamander larvae in …
Autumn Roost Selection By Male Hoary Bats (Lasiurus Cinereus) In Northern California, Danielle (Skye) Salganek
Autumn Roost Selection By Male Hoary Bats (Lasiurus Cinereus) In Northern California, Danielle (Skye) Salganek
Cal Poly Humboldt theses and projects
The hoary bat, Lasiurus cinereus, is a solitary bat that roosts in the foliage of trees throughout the western hemisphere. Roosts are subject to the ambient temperature of their surroundings, thus hoary bats undergo long-distance migrations between summer and winter ranges to avoid freezing temperatures. Habitat selection has been studied during the summer for maternal female hoary bats, but not during migration and winter. Autumn migration coincides with the hoary bat mating period and it has been proposed that male and female bats may rendezvous on migration paths. Individuals may select roosts in stopover locations that enhance fitness by providing …
Environmental Predictors For The Distribution Of The Caspian Green Lizard, Lacerta Strigata Eichwald, 1831, Along Elevational Gradients Of The Elburz Mountains In Northern Iran, Anooshe Kafash, Sohrab Ashrafi, Annemarie Ohler, Benedikt Rudolf Schmidt
Environmental Predictors For The Distribution Of The Caspian Green Lizard, Lacerta Strigata Eichwald, 1831, Along Elevational Gradients Of The Elburz Mountains In Northern Iran, Anooshe Kafash, Sohrab Ashrafi, Annemarie Ohler, Benedikt Rudolf Schmidt
Turkish Journal of Zoology
Within its range, the Caspian green lizard, Lacerta strigata, occurs in the Elburz Mountains (northern Iran) at elevations from below sea level to approximately 2700 m a.s.l. To determine the environmental factors affecting the distribution of this lizard, we used an ensemble approach to model the distribution of the Caspian green lizard (Lacerta strigata) in Iran using four algorithms (generalized boosted model, maximum entropy, generalized linear model, random forest). Results revealed that low-elevation habitats between the Elburz Mountains and the Caspian Sea are the most suitable habitats for the species. The normalized difference vegetation index (NDVI), annual precipitation (both with …
Influence Of Environmental Features On Spermatophore Placement In Spotted Salamanders (Ambystoma Maculatum), Megan A. Kuechle
Influence Of Environmental Features On Spermatophore Placement In Spotted Salamanders (Ambystoma Maculatum), Megan A. Kuechle
Theses and Dissertations
Successful reproduction in salamanders is driven by behavioral, environmental, and temporal interactions among adults. While much of our understanding of salamander mating systems is based upon either courtship behavior of both sexes or aspects of female choice, the decisions made by males regarding where to place spermatophores is much less quantified. In this study, we mapped male spermatophore placement in the spotted salamander (Ambystoma maculatum) with respect to ecological and spatial locations within a vernal pool complex in Charles City County, Virginia. The overall goal was to use the spatial and ecological placement of spermatophores to determine if …
Vegetation Characteristics And Bird Communities Associated With Singing Painted Buntings In Northwest Arkansas, Lauren Kristina Thead
Vegetation Characteristics And Bird Communities Associated With Singing Painted Buntings In Northwest Arkansas, Lauren Kristina Thead
Graduate Theses and Dissertations
It has been shown that bird communities are affected by the species composition and physical structure of plant communities. Within avian communities, the bird species that are the most localized in distribution tend to be the most affected by habitat changes. My research analyzed plant and bird communities found with the Painted Bunting (Passerina ciris Linnaeus), a locally common but declining species throughout much of its range. First, I describe vegetation characteristics associated with singing male Painted Buntings in northwest Arkansas. I categorized field sites with singing male Painted Buntings as either managed for wildlife or unmanaged, based on land-use …
Bats Of St. Vincent, Lesser Antilles, Gary G. Kwiecinski, Scott C. Pedersen, Hugh H. Genoways, Peter A. Larsen, Roxanne J. Larsen, Justin D. Hoffman, Fitzroy Springer, Carleton J. Phillips, Robert J. Baker
Bats Of St. Vincent, Lesser Antilles, Gary G. Kwiecinski, Scott C. Pedersen, Hugh H. Genoways, Peter A. Larsen, Roxanne J. Larsen, Justin D. Hoffman, Fitzroy Springer, Carleton J. Phillips, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
The chiropteran fauna of the island of Saint Vincent, represented by 12 species, is among the most complex in the Lesser Antilles, being represented by four families including Noctilionidae (1 species), Mormoopidae (1), Phyllostomidae (8), and Molossidae (2). This fauna includes four trophic guilds as represented by Noctilio leporinus (piscivore/insectivore); Glossophaga longirostris and Monophyllus plethodon (nectarivore/pollenivore); Artibeus lituratus, A. schwartzi, Brachyphylla cavernarum, Ardops nichollsi, and Sturnira paulsoni (frugivore); and Pteronotus fuscus, Micronycteris buriri, Molossus molossus, and Tadarida brasiliensis (insectivore). One species—Micronycteris buriri—and two subspecies—Sturnira paulsoni paulsoni and Ardops nichollsi vincentensis …
Checklist Of Bats In Some Areas Of Azad Jammu And Kashmir, Fakhra Nazir, Inayatullah Malik, Sabiha Shamim
Checklist Of Bats In Some Areas Of Azad Jammu And Kashmir, Fakhra Nazir, Inayatullah Malik, Sabiha Shamim
Journal of Bioresource Management
Bats form an essential part of the ecosystem by aiding pollination, keeping insect pests in check and overall maybe helpful as indicators of health status of the ecosystem. This study was conducted to formulate a checklist of bats from different regions in Azad Jammu and Kashmir. Five National parks from Azad Jammu and Kashmir were surveyed for the species of bats present (Dhirkot National Park, Pir Lasura National Park, Pir Chanasi National Park, Banjosa National Park and Tolipir National Park). From the study conducted, 10 species of bats belonging to 5 families were found cumulatively in the five national parks.
The Spatial Ecology And Microhabitat Selection Of The Pygmy Rattlesnake (Sistrurus Miliarius) In Southwestern Missouri, Dylan Wallace Maag
The Spatial Ecology And Microhabitat Selection Of The Pygmy Rattlesnake (Sistrurus Miliarius) In Southwestern Missouri, Dylan Wallace Maag
MSU Graduate Theses
Despite a wide distribution throughout the southeastern United States, pygmy rattlesnakes (Sistrurus miliarius) have received less research attention than many other rattlesnake species. I captured a total of 33 S. miliarius at the Drury-Mincy Conservation Area (DMCA) and retained 14 large individuals (mostly gravid females) for a radio telemetry study. Snakes were primarily captured during evening road driving surveys and were encountered rarely with any other sampling technique. Sistrurus miliarius are widespread at DMCA where they were encountered in forest, savanna, and glade habitats. Snakes selected microhabitats with more vegetative cover and tree canopy closure than random sites …
Evaluating The Ecological Status Of The Introduced Nile Monitor (Varanus Niloticus) In Florida: Forecasting Presence And Population Expansion Using Computational Geographic Information Systems, Noah G. Cohen
HCNSO Student Theses and Dissertations
The Nile monitor (Varanus niloticus) is a large, carnivorous lizard that has become a notorious invasive species in Florida, USA. Initially released in the 1980s from the pet trade, the species has since established at least three breeding populations and spread throughout much of southern Florida. While current control efforts have failed to eradicate V. niloticus, it is important to attain a better understanding of its invasive dynamics to guide and inform better control strategies. In this study, available georeferenced records of V. niloticus in Florida were compiled and linked to a habitat classification map to evaluate ecotype preferences. Factored …
Examining Movement And Habitat Selection Of Everglades Fishes In Response To Seasonal Water Levels, Gregory J. Hill
Examining Movement And Habitat Selection Of Everglades Fishes In Response To Seasonal Water Levels, Gregory J. Hill
FIU Electronic Theses and Dissertations
Fish distribution patterns and seasonal habitat use play a key role in the food web dynamics of aquatic ecosystems, including the Florida Everglades. In this study I examined the fine scale habitat shifts and movements of spotted sunfish, Lepomis punctatus across varying seasons and hydrologic conditions using in-situ field enclosures and Passive Integrated Transponder (PIT) systems. Data on fish use of three dominant Everglades marsh habitats and activity level were recorded continuously from January to August, 2015. Fish were more active and had the highest use of higher elevation habitats when water levels rose during an experimental reversal in mid-April. …
New Data On Hahnia C.L. Koch, 1841 From Crimea (Aranei: Hahniidae), Mykola Kovblyuk, Zoya Kastrygina, Yuri Marusik
New Data On Hahnia C.L. Koch, 1841 From Crimea (Aranei: Hahniidae), Mykola Kovblyuk, Zoya Kastrygina, Yuri Marusik
Turkish Journal of Zoology
Four species of Hahnia are recorded from Crimea: H. helveola Simon, 1875; H. nava (Blackwall, 1841); H. ononidum Simon, 1875; and H. pusilla C.L. Koch, 1841. Two species, namely H. ononidum and H. pusilla, are recorded from Crimea for the first time. Crimea is the easternmost point of the known range for H. helveola. Illustrations, diagnoses, distribution data, habitats, and seasonal dynamics of activity are presented.
Habitat Useage Of Tri-Colored Bats (Perimyotis Subflavus) In Western Kentucky And Tennessee Post-White Nose Syndrome, Katherine Schaefer
Habitat Useage Of Tri-Colored Bats (Perimyotis Subflavus) In Western Kentucky And Tennessee Post-White Nose Syndrome, Katherine Schaefer
Murray State Theses and Dissertations
The tri-colored bat (Perimyotis subflavus) has declined severely across its range since 2006 due to white nose syndrome, a fungal disease causing massive bat mortality in North America. My objective was to determine distinguishing characteristics of roost trees and habitat used by tri-colored bats so that the species’ needs can be considered in management plans. I mist-netted for tri-colored bats in western Kentucky and Tennessee during the summers of 2015 and 2016, and attached a radio transmitter to each captured adult bat. I tracked 15 bats to their day roosts and collected habitat data at 38 roost areas …
Bird Communities Of Different Woody Vegetation Types From The Niraj Valley, Romania, Erzsébet Domokos, József Domokos
Bird Communities Of Different Woody Vegetation Types From The Niraj Valley, Romania, Erzsébet Domokos, József Domokos
Turkish Journal of Zoology
In this paper, the bird assemblages of different woody vegetation types are presented in a human-modified Eastern European landscape. The studied territory is part of a Special Protection Area for bird species. The following sampling areas were included in the study: hornbeam-beech, oak-hornbeam, and sessile oak forests; thickets of willow; forests of white willow; scrubs of blackthorn and hawthorn; and orchards. Birds were grouped in a community typical of deciduous forests and in another community typical of coppices and scrubs. Bird species number, alpha diversity, and abundance were significantly higher in the Salici-Populetum association and in orchards than in the …
Factors Affecting The Diet Of The Red Fox (Vulpes Vulpes) In A Heterogeneousmediterranean Landscape, Dimitrios Bakaloudis, Vasileios Bontzorlos, Christos Vlachos, Malamati Papakosta, Evanggelos Chatzinikos, Sotirios Braziotis, Vasileios Kontsiotis
Factors Affecting The Diet Of The Red Fox (Vulpes Vulpes) In A Heterogeneousmediterranean Landscape, Dimitrios Bakaloudis, Vasileios Bontzorlos, Christos Vlachos, Malamati Papakosta, Evanggelos Chatzinikos, Sotirios Braziotis, Vasileios Kontsiotis
Turkish Journal of Zoology
The diet of the red fox (Vulpes vulpes) has been well studied in Europe, but limited information exists about its feeding habits in Greece and in other Mediterranean landscapes. We studied the diet variation of the red fox by analyzing contents from 219 red fox stomachs in central Greece from 2003 to 2005. We used canonical correspondence analysis (CCA) and quasi-distribution generalized linear model (GLM) response curves to investigate whether the trophic groups of the red fox diet varied temporally and/or spatially with environmental factors. Mammals, arthropods, and plants were the most important trophic groups in the diet; in particular, …
An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson
An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson
Philip J. Nyhus
Human-caused biodiversity loss is a global problem, large carnivores are particularly threatened, and the tiger (Panthera tigris) is among the world’s most endangered large carnivores. The South China tiger (Panthera tigris amoyensis) is the most critically endangered tiger subspecies and is considered functionally extinct in the wild. The government of China has expressed its intent to reintroduce a small population of South China tigers into a portion of their historic range as part of a larger goal to recover wild tiger populations in China. This would be the world’s first major tiger reintroduction program. A free-ranging population of 15–20 tigers …
Habitat Use Of The Key Largo Woodrat (Neotoma Floridana Smalli), Lauren J. Barth
Habitat Use Of The Key Largo Woodrat (Neotoma Floridana Smalli), Lauren J. Barth
FIU Electronic Theses and Dissertations
Key Largo woodrats are an endangered subspecies with an extremely limited habitat. This study sought to understand woodrat habitat preferences in order to guide management. Woodrats build stick nests from natural and artificial materials, so nest distribution and nest occupancy were used as indicators of preference. Distribution was determined by nest surveys, and remote cameras were used to assess occupancy. Forest structure, human disturbance, nest, and animal presence metrics were also collected. More nests were found along abandoned roads than along forest transects and more artificial nests were occupied than natural nests. These findings indicate that woodrats prefer areas with …
Syllabus: Wildlife Habitat Management, Paige Warren
Syllabus: Wildlife Habitat Management, Paige Warren
Sustainability Education Resources
This course provides an in-depth exploration of wildlife-habitat relationships, illustrated through basic field zoology and natural history, evolutionary biology, and ecological theory. We introduce you to quantitative tools used to explain ecological processes and their influence on wildlife and their environment. We will examine the dynamics and management of various habitats in New England, North America, and elsewhere through field visits and use of primary literature. We will place particular emphasis on managing wildlife habitat in an urbanizing world. By one estimate, roughly 9% of the land area of the United States is in a zone of wildland-urban interface, but …
Predicting Nesting Habitat Of Northern Goshawks In Mixed Aspen-Lodgepole Pine Forests In A High-Elevation Shrub-Steppe Dominated Landscape., Robert A. Miller, Jay D. Carlisle, Marc J. Bechard, Dena Santini
Predicting Nesting Habitat Of Northern Goshawks In Mixed Aspen-Lodgepole Pine Forests In A High-Elevation Shrub-Steppe Dominated Landscape., Robert A. Miller, Jay D. Carlisle, Marc J. Bechard, Dena Santini
Robert Miller
We developed a habitat suitability model for predicting nest locations of breeding Northern Goshawks (Accipiter gentilis) in the high-elevation mixed forest and shrub-steppe habitat of south-central Idaho, USA. We used elevation, slope, aspect, ruggedness, distance-to-water, canopy cover, and individual bands of Landsat imagery as predictors for known nest locations with logistic regression. We found goshawks prefer to nest in gently-sloping, east-facing, non-rugged areas of dense aspen and lodgepole pine forests with low reflectance in green (0.53 - 0.61 μm) wavelengths during the breeding season. We used the model results to classify our 43,169 hectare study area into nesting suitability categories: …
The Population Dynamics Of Two Rodents In Two Coastal Marshes In Virginia, Robert K. Rose, John A. March
The Population Dynamics Of Two Rodents In Two Coastal Marshes In Virginia, Robert K. Rose, John A. March
Virginia Journal of Science
The communities of small mammals were evaluated for 13 months with capture-mark-recapture methods in two Spartina-Juncus marshes of the Atlantic coast in Northampton County, Virginia. Small mammals were trapped for three days each month using live traps placed on floats on two study grids. Two rodents were numerically dominant (~90% of small mammals) there: marsh rice rat, Oryzomys palustris, and meadow vole, Microtus pennsylvanicus. Monthly estimates of population density were greater for rice rats (peak: 45/ha) than for those of meadow voles (peak: 30/ha). Survival rates were generally low, especially for rice rats, indicating highly vagile populations. Both …
First Record Of Pond Sliders (Trachemys Scripta Scripta And T. S. Elegans) At Fredericksburg, Virginia With Observations On Population Size, Age And Growth, Werner Wieland, Yoshinori Takeda
First Record Of Pond Sliders (Trachemys Scripta Scripta And T. S. Elegans) At Fredericksburg, Virginia With Observations On Population Size, Age And Growth, Werner Wieland, Yoshinori Takeda
Virginia Journal of Science
We conducted a turtle mark-recapture program within a 160 m stretch of the Fredericksburg Canal with standard, baited hoop nets from May to July 2012 to determine if a population of the introduced Red-eared Slider (Trachemys scripta elegans) and Yellow-bellied Slider (Trachemys s. scripta) are established in this area. We captured and marked nine Red-eared Sliders (1 male, 8 females) and estimated a population size of 23 individuals. Most were reproductively mature. The established population in the canal may be a source of introduction into the Rappahannock River.
The Small Mammals Of Two Dune Communities In Southeastern Virginia, Robert K. Rose, Justin L. Sweitzer
The Small Mammals Of Two Dune Communities In Southeastern Virginia, Robert K. Rose, Justin L. Sweitzer
Virginia Journal of Science
Small mammals were surveyed using live and pitfall traps between the primary and secondary dunes at two locations on the shores of the Chesapeake Bay near the Atlantic Ocean: Little Creek Amphibious Base in Norfolk and Joint Expeditionary Base Fort Story in Virginia Beach, Virginia. Captures were dominated by house mice (Mus musculus) in interdunal habitats with sparse grass, whereas white-footed mice (Peromyscus leucopus) were found primarily in shrubby live-oak thickets on the tops of dunes. Hispid cotton rats (Sigmodon hispidus) were present only at Fort Story, and then only in patches of dense …
Emerging Near-Real Time Forage Monitoring Technology With Application To Large Herbivore Management In Mongolia, Dennis P. Sheehy, Jerry W. Stuth, Douglas E. Johnson, Jay Angerer, Douglas Tolleson
Emerging Near-Real Time Forage Monitoring Technology With Application To Large Herbivore Management In Mongolia, Dennis P. Sheehy, Jerry W. Stuth, Douglas E. Johnson, Jay Angerer, Douglas Tolleson
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Large herbivore livestock and wildlife in Mongolia depend almost entirely for substance on forage standing crop produced each year on natural pastureland. Consequently, both livestock and wildlife are continuously subject to environmental risk, especially drought and severe winter storms, while livestock are also subject to financial risk. As consumption-based livestock production changes to commercialized livestock production, steps taken by the livestock herder to avert both environmental and financial risk to livestock can increase environmental risk to large wild herbivores. A realistic and workable pastureland and risk management system will be critical for conservation of large herbivore habitat. New technologies are …