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Full-Text Articles in Life Sciences
Is Mitigation Translocation An Effective Strategy For Conserving Common Chuckwallas?, Chad A. Rubke, Daniel J. Leavitt, Woodrow L. Crumbo, Brock Williams, Ashley A. Grimsley-Padron, Kristin J. Gade, Russell Benford, Michael F. Ingraldi, Brian K. Sullivan, Ryan P. O’Donnell
Is Mitigation Translocation An Effective Strategy For Conserving Common Chuckwallas?, Chad A. Rubke, Daniel J. Leavitt, Woodrow L. Crumbo, Brock Williams, Ashley A. Grimsley-Padron, Kristin J. Gade, Russell Benford, Michael F. Ingraldi, Brian K. Sullivan, Ryan P. O’Donnell
Human–Wildlife Interactions
Mitigation translocation remains a popular conservation tool despite ongoing debate regarding its utility for population conservation. To add to the understanding of the effectiveness of mitigation translocation, in 2017 and 2018 we monitored a population of protected common chuckwallas (Sauromalus ater) following translocation away from the area of construction of a new highway near the South Mountains, Phoenix, Arizona, USA. We removed chuckwallas from the construction right-of-way, paint-marked and pit-tagged them, and then released them in a nearby municipal preserve. We deployed very high frequency radio-telemetry transmitters on a sub-sample of 15 translocated adult chuckwallas. We monitored the …
Holiday Lights Create Light Pollution And Become Ecological Trap For Eastern Fox Squirrels: Case Study On A University Campus, Scott E. Henke, David B. Wester, Cord B. Eversole
Holiday Lights Create Light Pollution And Become Ecological Trap For Eastern Fox Squirrels: Case Study On A University Campus, Scott E. Henke, David B. Wester, Cord B. Eversole
Human–Wildlife Interactions
Ecological light pollution is now recognized as a significant source of ecosystem alteration. We documented that holiday lights are a seasonal source of light pollution that constitute an ecological trap for eastern fox squirrels (Sciurus niger). Texas A&M University-Kingsville (TAMUK) wildlife students surveyed a 2-km walking transect 5 times per month each month for the relative abundance and diel behavior of eastern fox squirrels and feral cats (Felis catus) on the TAMUK campus during 2018–2019. Eastern fox squirrels exhibited diurnal behaviors throughout the year but extended their foraging behavior nearly 4 hours after sunset with the …
Does Body Condition Affect Immediate Post-Capture Survival Of Ungulates?, Louis C. Bender
Does Body Condition Affect Immediate Post-Capture Survival Of Ungulates?, Louis C. Bender
Human–Wildlife Interactions
Many factors are known or are thought to increase vulnerability to capture-related mortality in ungulates. I compared body condition of Rocky Mountain elk (Cervus elaphus nelson), mule deer (Odocoileus hemionus), and pronghorn (Antilocapra americana) to assess whether those that survived capture differed from those that did not. Fate of ungulates was generally not related to condition (F1,646 = 1.6; P = 0.21), and this relationship was similar among species (species × fate interaction: F4,646 = 1.3; P = 0.29), season of capture (species × season × fate interaction: F6,646 = …
Factors Influencing Survival Of Desert Mule Deer In The Greater San Andres Mountains, New Mexico, Louis C. Bender, Brock D. Hoenes, Cristina L. Rodden
Factors Influencing Survival Of Desert Mule Deer In The Greater San Andres Mountains, New Mexico, Louis C. Bender, Brock D. Hoenes, Cristina L. Rodden
Human–Wildlife Interactions
Mule deer numbers have declined precipitously in the San Andres Mountains of southcentral New Mexico. To assess reasons for population declines, we monitored condition, survival, and causes of mortality for a range of 37 to 64 radio-collared, >1.5-year-old female mule deer annually, and a range of 14 to 31 radio-collared, >1.5-year-old male mule deer annually from 2003 to 2009, and modeled environmental factors affecting survival. We found annual survival rates of 0.74 to 0.86 for females and 0.74 to 0.92 for males, rates that were similar among years within sexes. Causes of mortality for 50 radio-collared females and 22 radio-collared …
Survival Analysis And Computer Simulations Of Lethal And Contraceptive Management Strategies For Urban Deer, Marrett D. Grund
Survival Analysis And Computer Simulations Of Lethal And Contraceptive Management Strategies For Urban Deer, Marrett D. Grund
Human–Wildlife Interactions
I monitored survival of 34 female white-tailed deer (Odocoileus virginianus) in Bloomington, Minnesota, from October 1996 to December 1999. Twenty deer died: nineteen were killed by vehicles, and one was killed in a deer-removal program conducted by an adjacent suburb. Summer survival was high and varied little over the 3 years of study (range = 0.93 to 0.95). Fall survival ranged from 0.84 to 1.00, and winter survival was generally high during the 3 years of study, except during a severe winter (range = 0.72 to 0.95). I calculated population growth rates (λ) from Leslie matrix projections, using …
Condition, Survival, And Productivity Of Mule Deer In Semiarid Grassland-Woodland In East-Central New Mexico, Louis C. Bender, Jon C. Boren, Heather Halbritter, Shad Cox
Condition, Survival, And Productivity Of Mule Deer In Semiarid Grassland-Woodland In East-Central New Mexico, Louis C. Bender, Jon C. Boren, Heather Halbritter, Shad Cox
Human–Wildlife Interactions
Mule deer (Odocoileus hemionus) are an economically important species to wildlife enterprises throughout New Mexico and the western United States, but populations are declining, limiting recreational and revenue potential to private and public wildlife managers. We documented body condition, survival, production of fawns, and trends in population size of a declining mule deer population on the Corona Range and Livestock Research Center (CRLRC), a multiple-use research ranch in east-central New Mexico owned by New Mexico State University. Mule deer females were in poor condition, characterized by accrual of little body fat or lean tissue (muscle mass) reserves. Annual …
Fate Of Captive-Reared And Released Mallards On Eastern Long Island, New York, Carrie E. Osborne, Bryan L. Swift, Guy A. Baldassarre
Fate Of Captive-Reared And Released Mallards On Eastern Long Island, New York, Carrie E. Osborne, Bryan L. Swift, Guy A. Baldassarre
Human–Wildlife Interactions
We studied captive-reared mallards (Anas platyrhynchos; CRMs) released on eastern Long Island, New York, in 2006 to 2007 and 2007 to 2008 to determine: (1) survival rates of CRMs; (2) contribution to hunter harvest; (3) local movements; and (4) pair status, reproductive behavior, and production of CRMs. We banded and released 100 CRMs in November 2006 of which 20 were radio-marked. In November 2007, we banded and released 299 CRMs of which 60 were radio-marked. We used Program MARK to determine weekly survival estimates (0.53 to 1.00) up to 24 weeks after release; cumulative survival from November to …
Movements, Habitat Selection, Associations, And Survival Of Giant Canada Goose Broods In Central Tennessee, Eric M. Dunton, Daniel L. Combs
Movements, Habitat Selection, Associations, And Survival Of Giant Canada Goose Broods In Central Tennessee, Eric M. Dunton, Daniel L. Combs
Human–Wildlife Interactions
The brood-rearing period in giant Canada geese (Branta canadensis maxima) is one of the least-studied areas of goose ecology. We monitored 32 broods in Putnam County, Tennessee, from the time of hatching through fledging (i.e., when the goslings gained the ability to fly) and from fledging until broods left the brood-rearing areas during the spring and summer of 2003. We conducted a fixed-kernel, home-range analysis for each brood using the Animal Movement Extension in ArcView® 3.3 GIS (ESRI, Redlands, Calif.) software and calculated 95% and 50% utilization distributions (UD) for each brood. We classified 25 broods as sedentary …
Demographic And Spatial Characteristics Of Feral Hogs In The Chihuahuan Desert, Texas, Roger N. Adkins, Louis A. Harveson
Demographic And Spatial Characteristics Of Feral Hogs In The Chihuahuan Desert, Texas, Roger N. Adkins, Louis A. Harveson
Human–Wildlife Interactions
Feral hogs (Sus scrofa) have recently expanded their range to include portions of the arid regions of the Chihuahuan Desert, Texas. We examined feral hog density, survival rates, range size, and habitat use in the Davis Mountains, Texas, to understand hog ecology in a desert environment. We tested the hypothesis that densities of feral hogs across Texas would be positively related to precipitation. Feral hog densities in the Chihuahuan Desert were low (0.65 individuals/km2), supporting our prediction. Annual home range sizes (100% minimum convex polygon) were also high and averaged 48.3 ± 4.4 km2 and …