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Articles 1 - 30 of 434
Full-Text Articles in Life Sciences
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxvii. Lanzatus Huluul Sp. N. From Somaliland (Buthidae), František Kovařík, Graeme Lowe
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxvii. Lanzatus Huluul Sp. N. From Somaliland (Buthidae), František Kovařík, Graeme Lowe
Euscorpius
The rare Horn of Africa buthid genus Lanzatus Kovařík, 2001 was newly collected in Somaliland in two localities. We describe a new species Lanzatus huluul sp. n. fully illustrated with color photos showing its morphology, habitus, hemispermatophore and collection areas.
Using Spatial Methods To Analyse Anthropogenic Predation Risk And Movement Ecology Of White-Tailed Deer (Odocoileus Virginianus), Rhiannon D. Kirton
Using Spatial Methods To Analyse Anthropogenic Predation Risk And Movement Ecology Of White-Tailed Deer (Odocoileus Virginianus), Rhiannon D. Kirton
Electronic Thesis and Dissertation Repository
Hunting has been used as a central tool by wildlife managers to maintain populations of game species, however, we still lack a good understanding of exactly how hunting influences deer biology. Technological advances in GPS data over the last two decades now enable us to perform more detailed analysis on the effects of human hunters on wildlife populations. This research explores the spatial ecology of hunters and White-tailed deer in the Cross Timbers ecoregion of Oklahoma. Using new statistical methodologies to analyse simultaneous GPS tracking data on deer and hunters to study their spatial interactions. The results show how new …
Pushing It To The Limit: Determining Asian Elephant (Elephas Maximus) Olfactory Sensitivity And Discrimination Through A Behavioral Choice Task, Matthew S. Rudolph
Pushing It To The Limit: Determining Asian Elephant (Elephas Maximus) Olfactory Sensitivity And Discrimination Through A Behavioral Choice Task, Matthew S. Rudolph
Theses and Dissertations
Elephants have shown remarkable olfactory capabilities. Their sense of smell impacts their foraging choices, behavior, and ultimately, survival. Being able to detect a target odor can allow elephants to locate specific resources, identify threats, and find receptive conspecifics. Previous studies have shown that elephants can consistently detect target odors, but have not identified the limits of this detection. Thus, to investigate the extent of elephants’ odor detection capabilities, we tested Asian elephants in a two-step odor discrimination task. First, we investigated whether elephants could detect odors at varying levels of dilution after a training procedure, and then whether they could …
Dolphins In Ny? Researchers Turn To Boat Tours For Sightings, Aaron K. Tremper
Dolphins In Ny? Researchers Turn To Boat Tours For Sightings, Aaron K. Tremper
Capstones
Before 2009, coastal bottlenose dolphins were a rare sight north of New Jersey. According to local researchers, large pods of bottlenose dolphins made their way that spring/summer along Long Island. While dolphin population data by state and federal wildlife regulators are spotty, studies by local scientists suggest more dolphins have been flocking to New York since 2009. Many researchers are turning to whale-watching ventures to learn more about what dolphins are up to in the Big Apple.
https://jkt711.github.io/capstone/
The Art Of Amphibian Conservation: Linking In-Situ And Ex-Situ Populations Of Endangered Species Through Genome Banking, Isabella Joann Burger
The Art Of Amphibian Conservation: Linking In-Situ And Ex-Situ Populations Of Endangered Species Through Genome Banking, Isabella Joann Burger
Theses and Dissertations
Limited breeding success in captive breeding programs has necessitated the development of assisted reproductive technologies (ART) to preserve and increase genetic variation and population numbers of both captive and wild amphibian groups. ART has been shown to be successful in numerous anuran species, and current studies focus on the application of ART in ex-situ populations. The focus of this project is to show that linking in-situ and ex-situ amphibian populations through sperm cryopreservation, genome banking, and in-vitro fertilization is possible, with the goal of increasing gene diversity throughout groups in order to produce self-sustaining, wild populations in the future. Specific …
Spatiotemporal Variation Of An Eastern Tropical Pacific Pelagic Community Assessed With Free-Drifting Bruvs, Tyler Stephen Plum
Spatiotemporal Variation Of An Eastern Tropical Pacific Pelagic Community Assessed With Free-Drifting Bruvs, Tyler Stephen Plum
All HCAS Student Capstones, Theses, and Dissertations
Information about pelagic community diversity and ecology generally lags far behind that of coastal communities, and largely derives from fisheries data that do not reflect small and non-target species. We describe spatiotemporal vertebrate species diversity and variability over a 3,486 km2 area of highly productive pelagic marine ecosystem in Pacific Panama using drifting baited remote underwater video stations (BRUVS), a non-invasive fishery-independent sampling technique. We observed 26 taxa from 17 families, including 1 mammal, 3 reptile, 5 elasmobranch, and 17 teleost species. Community assemblages differed on and off the continental shelf and between wet (April – December) and dry …
Scorpionfish (Scorpaena Porcus) Neurocranium, Erin Porter, Cairone Reft, David Kerstetter
Scorpionfish (Scorpaena Porcus) Neurocranium, Erin Porter, Cairone Reft, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium preparation of a Scorpionfish (Scorpaena porcus) by Erin Porter and Cairone Reft for the Biology of Fishes course at Nova Southeastern University taught by Dr. Kerstetter.
Grey Triggerfish (Balistes Capriscus) Neurocranium, Madelynn Sampson, Hailey Levine, David W. Kerstetter
Grey Triggerfish (Balistes Capriscus) Neurocranium, Madelynn Sampson, Hailey Levine, David W. Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Grey Triggerfish (Balistes capriscus) neurocranium preparation by Madelynn Sampson and Hailey LeVine.
Mahi Mahi (Coryphaena Hippurus) Neurocranium, Alexia J. Hilber, Caileigh Craddock, Kiara Belanger, David W. Kerstetter
Mahi Mahi (Coryphaena Hippurus) Neurocranium, Alexia J. Hilber, Caileigh Craddock, Kiara Belanger, David W. Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from Mahi Mahi (Coryphaena hippurus), collected in 3/2021 by Katerina Sawickji
Kingfish Neurocranium, Kaden R. Mackey, David Kerstetter
Kingfish Neurocranium, Kaden R. Mackey, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
This is the skull of a kingfish with the nasal bone included.
A New Species Of Vaejovis From The Mule Mountains Above Bisbee, Arizona (Scorpiones: Vaejovidae), Brandon T. Myers, Richard F. Ayrey
A New Species Of Vaejovis From The Mule Mountains Above Bisbee, Arizona (Scorpiones: Vaejovidae), Brandon T. Myers, Richard F. Ayrey
Euscorpius
No abstract provided.
Red Grouper (Epinephelus Morio) Neurocranium, Katja C. Kramers, Morgan A. Pfeiffer, David W. Kerstetter
Red Grouper (Epinephelus Morio) Neurocranium, Katja C. Kramers, Morgan A. Pfeiffer, David W. Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium From 10 cm total length Red Grouper (Epinephelus morio), collected from Whole Foods Supermarket on 10 October 2021 by Katja Kramers and Morgan Pfeiffer
Centropomus Undecimalis, Common Snook Neurocranium, Victoria Rose Kelley, Savanna Duda, David W. Kerstetter
Centropomus Undecimalis, Common Snook Neurocranium, Victoria Rose Kelley, Savanna Duda, David W. Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from Centropomus undecimalis (Common Snook), collected from NSU Oceanographic Campus Boat Basin on 24/03/2021 by Savanna Duda.
[Red Grouper (Epinephelus Morio)] Neurocranium, Laurel Gallaudet, Robert Spekis
[Red Grouper (Epinephelus Morio)] Neurocranium, Laurel Gallaudet, Robert Spekis
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from 14.1 cm total length (TL) Red Grouper (Epinephelus morio), collected from Miami on 13/10/21 by Laurel Gallaudet.
King Mackerel (Scomberomorus Cavalla), Aubrey L. Anthony, Erin Keeley, David Kerstetter
King Mackerel (Scomberomorus Cavalla), Aubrey L. Anthony, Erin Keeley, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from [length] cm total length (TL) King Mackerel (Scomberomorus Cavalla), collected from Bravo Market on 11/16/2021 by Aubrey Anthony
The Mayfly Newsletter, Donna Giberson, Peter M. Grant
The Mayfly Newsletter, Donna Giberson, Peter M. Grant
The Mayfly Newsletter
The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.
Northern Saw-Whet Owl Autumn Migration In Eastern Nebraska: Results From A Three-Year Banding Study, Stephen J. Brenner, Joel G. Jorgensen
Northern Saw-Whet Owl Autumn Migration In Eastern Nebraska: Results From A Three-Year Banding Study, Stephen J. Brenner, Joel G. Jorgensen
Nebraska Bird Review
Prior to 2019, records of NSWOs in Nebraska during fall were limited. There were fewer than five accepted reports in eastern Nebraska since the 1950s (Silcock and Jorgensen, 2021). The Hitchcock banding station along the Missouri River bluffs in nearby western Iowa has captured, banded, and released 20-50 birds during autumn migration for a number of years (J. Toll, personal communication). Furthermore, a single season banding study in central Nebraska during fall 2004 captured 14 NSWOs (Kim 2005), suggesting the species may migrate annually over much of the state in fall, or at least in more years than previously thought. …
The Nebraska Bird Review, Volume 89 Number 4, December 2021
The Nebraska Bird Review, Volume 89 Number 4, December 2021
Nebraska Bird Review
Fall Field Report, August - November 2021 by W. Ross Silcock
Book Review: Nest Records of Nebraska Birds by Wayne J. Mollhoff Reviewed by W. Ross Silcock
Northern Saw-whet Owl Autumn Migration in Eastern Nebraska: Results from a Three-year Banding Study by Stephen J. Brenner and Joel G. Jorgensen
Mute Swan Observation at Gavins Point Dam Area, Cedar/Knox Co., Nebraska by Caleb Strand and Mark A. Brogie
Book Review: The Sandhill Crane State: A Naturalist's Guide to Nebraska by Paul Johnsgard, Reviewed by Ruth Stearns
Index to Volume 89
Subscription and Organization Information
Mute Swan Observation At Gavins Point Dam Area, Cedar/Knox Co., Nebraska, Caleb Strand, Mark A. Brogie
Mute Swan Observation At Gavins Point Dam Area, Cedar/Knox Co., Nebraska, Caleb Strand, Mark A. Brogie
Nebraska Bird Review
The Nebraska Ornithologists’ Union Records Committee (NOURC) considers Mute Swan (Cygnus olor) to be Accidental in Nebraska (NOURC 2017) with only two accepted records. A review of Mute Swan status in the Midwest and Nebraska, how individual records in Nebraska are evaluated to determine wild provenance, and a review of Nebraska reports can be found in “The Mute Swan in Nebraska: History and Current Status” (Brogie et al. 2016).
The following is an account of the third NOURC accepted record for Mute Swan in Nebraska. On 11 June 2021 we observed two sub-adult Mute Swans on Lake Yankton, Cedar County, …
Review Of Nest Records Of Nebraska Birds By Wayne J. Mollhoff, W. Ross Silcock
Review Of Nest Records Of Nebraska Birds By Wayne J. Mollhoff, W. Ross Silcock
Nebraska Bird Review
This book summarizes a lifetime of investigation of Nebraska’s breeding birds by Wayne Mollhoff. Even though I say the book summarizes a lifetime of investigation, I would not be surprised if Wayne resurfaces in a few years with a follow-up of some sort, intrepid investigator that he is. Over the years Wayne has spent innumerable days in the field climbing trees in full forestry gear, wading and kayaking marshes and rivers, hiking over prairies, and bushwhacking through dense forests (there are still a few in Nebraska). But this isn’t the totality of Wayne’s talents; he is a determined researcher with …
Review Of The Sandhill Crane State: A Naturalist’S Guide To Nebraska By Paul Johnsgard, Ruth Stearns
Review Of The Sandhill Crane State: A Naturalist’S Guide To Nebraska By Paul Johnsgard, Ruth Stearns
Nebraska Bird Review
Dr. Paul Austin Johnsgard left us one last gift, in this reference guide to all places natural in Nebraska. Published posthumously, and available for purchase or free via UNL’s Digital Commons, this book arrived at my doorstep like a veritable “seed catalog” of Nebraska’s places of wonder to delight and inspire fair weather adventures just before the long winter set in. He wants us to explore the state as he had done, to be excited by all the out-ofdoors Nebraska has to offer.
Index To Volume 89
Nebraska Bird Review
Adams, Marie 52
to
Zonotrichia leucophrys gambelii 168 leucophrys 75, 168-169 oriantha 75, 169
Fall Field Report, August-November 2021, W. Ross Silcock
Fall Field Report, August-November 2021, W. Ross Silcock
Nebraska Bird Review
INTRODUCTION Recent years have seen increasing reports of birds lingering quite late, and this fall was no exception. Notable groups exhibiting tardy departures were shorebirds and vireos. Tardy shorebirds were record late Solitary Sandpipers, near-record late Dunlin, and late Long-billed Curlew, Ruddy Turnstone, Least and Semipalmated Sandpipers, Long-billed Dowitcher, and Wilson’s Phalarope. Among the vireos, all regular species were at least tardy; record late was a Red-eyed Vireo, a Warbling Vireo was record late for the Panhandle, and a Blue-headed Vireo was second latest on record. Record late was a Barn Swallow, and a Mountain Bluebird was record late in …
Landscape Transformations Produce Favorable Roosting Conditions For Turkey Vultures And Black Vultures, Jacob E. Hill, Kenneth F. Kellner, Bryan M. Kluever, Michael L. Avery, John S. Humphrey, Eric A. Tillman, Travis L. Devault, Jerrold L. Belant
Landscape Transformations Produce Favorable Roosting Conditions For Turkey Vultures And Black Vultures, Jacob E. Hill, Kenneth F. Kellner, Bryan M. Kluever, Michael L. Avery, John S. Humphrey, Eric A. Tillman, Travis L. Devault, Jerrold L. Belant
USDA Wildlife Services: Staff Publications
Recent increases in turkey vulture (Cathartes aura) and black vulture (Coragyps atratus) populations in North America have been attributed in part to their success adapting to human-modified landscapes. However, the capacity for such landscapes to generate favorable roosting conditions for these species has not been thoroughly investigated. We assessed the role of anthropogenic and natural landscape elements on roosting habitat selection of 11 black and 7 turkey vultures in coastal South Carolina, USA using a GPS satellite transmitter dataset derived from previous research. Our dataset spanned 2006–2012 and contained data from 7916 nights of roosting. Landscape …
Towards A More Comprehensive Understanding Of Wild Pig (Sus Scrofa) Impacts On Agricultural Producers: Insights From A Texas Case Study, Keith M. Carlisle, Nicole Didero, Sophie Mckee, Julie Elser, Stephanie A. Shwiff
Towards A More Comprehensive Understanding Of Wild Pig (Sus Scrofa) Impacts On Agricultural Producers: Insights From A Texas Case Study, Keith M. Carlisle, Nicole Didero, Sophie Mckee, Julie Elser, Stephanie A. Shwiff
USDA Wildlife Services: Staff Publications
This research investigates the impacts of invasive wild pigs (Sus scrofa Linneaus) on agricultural producers in Texas, with the aim of identifying and describing all categories of wild pig impacts and quantifying the extent of producers’ over- or underestimation of their total wild pig-related costs in 2018, as compared to calculations based upon data subsequently provided by the producers about individual wild pig-related costs and losses. Based on interviews with 23 producers in 16 Texas counties, we identified more than 20 discrete categories of negative impacts and negligible positive impacts associated with wild pigs. Among them were categories that have …
Sex And Nest Type Influence Avian Blood Parasite Prevalence In A High-Elevation Bird Community, Marina D. Rodriguez, Paul F. Doherty, Antoinette J. Piaggio, Kathryn P. Huyvaert
Sex And Nest Type Influence Avian Blood Parasite Prevalence In A High-Elevation Bird Community, Marina D. Rodriguez, Paul F. Doherty, Antoinette J. Piaggio, Kathryn P. Huyvaert
USDA Wildlife Services: Staff Publications
Background: The prevalence of avian haemosporidian parasites and the factors influencing infection in the Colorado Rocky Mountains are largely unknown. With climate change expected to promote the expansion of vector and avian blood parasite distributions, baseline knowledge and continued monitoring of the prevalence and diversity of these parasites is needed.
Methods: Using an occupancy modeling framework, we conducted a survey of haemosporidian parasite species infecting an avian community in the Colorado Rocky Mountains in order to estimate the prevalence and diversity of blood parasites and to investigate species-level and individual-level characteristics that may influence infection.
Results: We estimated the prevalence …
Reproductive Success Of Captive-Reared Allegheny Woodrats (Neotoma Magister) Released Into Genetically Depauperate Populations, Miracle M. Davis, Timothy J. Smyser, Scott A. Johnson, Joseph Duchamp, Jeffery L. Larkin, Robert K. Swihart, Jacqueline M. Doyle
Reproductive Success Of Captive-Reared Allegheny Woodrats (Neotoma Magister) Released Into Genetically Depauperate Populations, Miracle M. Davis, Timothy J. Smyser, Scott A. Johnson, Joseph Duchamp, Jeffery L. Larkin, Robert K. Swihart, Jacqueline M. Doyle
USDA Wildlife Services: Staff Publications
Habitat fragmentation and degradation have led to a proliferation of small and isolated populations that are vulnerable to genetic erosion. Reduction in habitat and concomitant declines in population connectivity can expediate the collapse of species that exist as natural metapopulations. In recent years, Allegheny woodrats (Neotoma magister) have experienced local extirpations and declines in genetic diversity across their range due to disease-related mortality, reduced food availability, and disruption of connectivity among subpopulations. In response, we developed a captive-breeding program to facilitate genetic management of isolated woodrat populations in Indiana. Between 2010 and 2012, 27 captive-reared individuals were released to four …
Economic Estimates Of Wild Hog (Sus Scrofa) Damage And Control Among Young Forest Plantations In Alabama, Micah Fern, Rebecca Barlow, Chris Slootmaker, John Kush, Stephanie Shwiff, Larry Teeter, Jim Armstrong
Economic Estimates Of Wild Hog (Sus Scrofa) Damage And Control Among Young Forest Plantations In Alabama, Micah Fern, Rebecca Barlow, Chris Slootmaker, John Kush, Stephanie Shwiff, Larry Teeter, Jim Armstrong
USDA Wildlife Services: Staff Publications
Operating as ecological engineers, the increased distribution and abundance of wild hogs (Sus scrofa) has caused considerable socio-economic impacts. The international scope of economic research providing wild hog damage estimates are often confined to agricultural crops, while damage estimates among forest plantations are lacking. In Alabama, private landowners hold the majority of timberland acreage and are less equipped to absorb financial losses from wild hog damage than their industrial counterparts. A survey was conducted to estimate the economic impact of wild hogs, namely costs of damage and control, to privately owned forestlands. The survey was distributed in the …
Responses Of Turkey Vultures To Unmanned Aircraft Systems Vary By Platform, Morgan B. Pfeiffer, Bradley F. Blackwell, Thomas W. Seamans, Bruce N. Buckingham, Joshua L. Hoblet, Patrice E. Baumhardt
Responses Of Turkey Vultures To Unmanned Aircraft Systems Vary By Platform, Morgan B. Pfeiffer, Bradley F. Blackwell, Thomas W. Seamans, Bruce N. Buckingham, Joshua L. Hoblet, Patrice E. Baumhardt
USDA Wildlife Services: Staff Publications
A challenge that conservation practitioners face is manipulating behavior of nuisance species. The turkey vulture (Cathartes aura) can cause substantial damage to aircraft if struck. The goal of this study was to assess vulture responses to unmanned aircraft systems (UAS) for use as a possible dispersal tool. Our treatments included three platforms (fixed-wing, multirotor, and a predator-like ornithopter [powered by flapping flight]) and two approach types (30 m overhead or targeted towards a vulture) in an operational context. We evaluated perceived risk as probability of reaction, reaction time, flight-initiation distance (FID), vulture remaining index, and latency to return. …
Potential Use For Serosurveillance Of Feral Swine To Map Risk For Anthrax Exposure, Texas, Usa, Rachel M. Maison, Courtney F. Pierce, Izabela K. Ragan, Vienna R. Brown, Michael J. Bodenchuk, Richard A. Bowen, Angela M. Bosco-Lauth
Potential Use For Serosurveillance Of Feral Swine To Map Risk For Anthrax Exposure, Texas, Usa, Rachel M. Maison, Courtney F. Pierce, Izabela K. Ragan, Vienna R. Brown, Michael J. Bodenchuk, Richard A. Bowen, Angela M. Bosco-Lauth
USDA Wildlife Services: Staff Publications
Anthrax is a disease of concern in many mammals, including humans. Management primarily consists of prevention through vaccination and tracking clinical-level observations because environmental isolation is laborious and bacterial distribution across large geographic areas diffi cult to confi rm. Feral swine (Sus scrofa) are an invasive species with an extensive range in the southern United States that rarely succumbs to anthrax. We present evidence that feral swine might serve as biosentinels based on comparative seroprevalence in swine from historically defi ned anthrax-endemic and non–anthraxendemic regions of Texas. Overall seropositivity was 43.7% (n = 478), and logistic regression revealed county endemicity …