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2011

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Articles 631 - 660 of 819

Full-Text Articles in Animal Sciences

Bat Species Diversity In Old-Growth Vs. Second Growth Forests In Lilley Cornett Woods, Letcher County, Kentucky, Lindsay R. Conley Jan 2011

Bat Species Diversity In Old-Growth Vs. Second Growth Forests In Lilley Cornett Woods, Letcher County, Kentucky, Lindsay R. Conley

Online Theses and Dissertations

Bat activity in old-growth forests (+150 years) is a subject that is poorly understood. The majority of old-growth forests are located in the northwestern portion of the United States, and with current silviculture practices, many forests are being cut. There have been no published studies that specifically examine bat use of old-growth forests in Kentucky. The objective of this study was to determine the diversity of bat species associated with old-growth and second growth forests within the Lilley Cornett Woods Appalachian Ecological Research Station, Letcher County, Kentucky. This study was conducted over 2 field seasons; 2009 and 2010. Mist netting …


Characteristics Of Rest Sites Used By Raccoons (Procyon Lotor) In Richmond, Kentucky, Jonathan Ridenour Jan 2011

Characteristics Of Rest Sites Used By Raccoons (Procyon Lotor) In Richmond, Kentucky, Jonathan Ridenour

Online Theses and Dissertations

The raccoon (Procyon lotor) is one of many species that have adapted to living in urban/suburban environments. In this study, radio-tagged raccoons within the city limits of Richmond, KY, were monitored to locate rest sites. A rest site is defined as any site occupied by a raccoon during the non-motile periods of its daily activity cycle. Thirty-three different rest sites were located throughout the spring and summer seasons of 2009-10. With some rest sites being used multiple times for a total of 50.

Of the individual rest sites located, 9, 16, and 8 were located in trees, in …


Haematology Of Downer Dairy Cows With Fatty Liver, Emmanouil Kalaitzakis, Nikolaos Panousis, Nikolaos Roubies, Eleni Kaldrymidoy, Harilaos Karatzias Jan 2011

Haematology Of Downer Dairy Cows With Fatty Liver, Emmanouil Kalaitzakis, Nikolaos Panousis, Nikolaos Roubies, Eleni Kaldrymidoy, Harilaos Karatzias

Turkish Journal of Veterinary & Animal Sciences

This study examined downer dairy cows with concurrent fatty liver of different degrees and evaluated the haematological values, the relationship and joint occurrence of fatty liver severity and haematology and compared the haematological values in the downer animals that finally died or cured. Blood and liver biopsy samples were obtained from 36 Holstein downer cows shortly after they became recumbent and before they were treated. Blood analysis included determination of haematocrit, haemoglobin, white blood, granular cell and lymphocytes count, and platelet number. Liver tissue was examined histologically and was classified according to severity of fatty liver. The majority of downer …


Analysis Of The Orf Region Of The Prion Protein Gene In The Botosani Karakul Sheep Breed From Romania, Steliana Elvira Maria Kevorkian, Mihaela Zaulet, Maria Adina Manea, Sergiu Emil Georgescu, Marieta Costache Jan 2011

Analysis Of The Orf Region Of The Prion Protein Gene In The Botosani Karakul Sheep Breed From Romania, Steliana Elvira Maria Kevorkian, Mihaela Zaulet, Maria Adina Manea, Sergiu Emil Georgescu, Marieta Costache

Turkish Journal of Veterinary & Animal Sciences

Ovine scrapie is considered a neurodegenerative disease characterized by the accumulation of an abnormal, protease-resistant isoform of PrP. The polymorphisms at codons 136, 154, and 171 are associated with susceptibility to scrapie. In order to detect the existing polymorphisms at the 3 codons we used the real-time PCR technique. The obtained genotypes were confirmed by PCR amplification and sequencing of a 402 bp fragment of exon 3 of the prion gene. Known polymorphisms were detected at codons 136, 154, and 171 and 5 different genotypes were determined. The results showed that all animals were homozygous for A at codon 136 …


Resource Assessment Framework (Raf) For Finfish Resources In Western Australia, Department Of Fisheries Jan 2011

Resource Assessment Framework (Raf) For Finfish Resources In Western Australia, Department Of Fisheries

Fisheries Occasional Publications

No abstract provided.


Evaluating Methods For Optimizing Classification Success From Otolith Tracers For Spotted Seatrout (Cynoscion Nebulosus) In The Chesapeake Bay, Stacy Kavita Beharry Jan 2011

Evaluating Methods For Optimizing Classification Success From Otolith Tracers For Spotted Seatrout (Cynoscion Nebulosus) In The Chesapeake Bay, Stacy Kavita Beharry

OES Theses and Dissertations

Identifying the natal sources of fish is an important step in understanding its population dynamics. Adult recruits are often sourced from multiple nursery areas, with good quality locations contributing disproportionately more fish to the adult stock. Because population persistence is strongly influenced by nursery habitat, methods that correctly identify the source of recruits are necessary for effective management. Within the last decade, otolith chemistry signatures have been increasingly used as a natural marker to delineate fish from a mixture of nursery sources. Despite the widespread use of otolith trace element and stable isotope ratios as habitat markers, the statistical approaches …


Department Of Fisheries Annual Report To The Parliament 2010/11, Government Of Western Australian Fisheries Department Jan 2011

Department Of Fisheries Annual Report To The Parliament 2010/11, Government Of Western Australian Fisheries Department

Department of Fisheries Annual Reports

This annual report provides an overview of the Department and its operations for the financial year ended 30 June 2011. It has been prepared in accordance with the requirements of the Financial Management Act 2006, the Fish Resources Management Act 1994 and the Public Sector Commission’s Annual reporting framework – 2010/11 reporting year.


Gray Wolf (Canis Lupus) Movements And Behavior Around A Kill Site And Implications For Gps Collar Studies, L. David Mech Jan 2011

Gray Wolf (Canis Lupus) Movements And Behavior Around A Kill Site And Implications For Gps Collar Studies, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Global Positioning System (GPS) radio-collars are increasingly used to estimate Gray Wolf (Canis lupus) kill rates. In interpreting results from this technology, researchers make various assumptions about wolf behavior around kills, yet no detailed description of this behavior has been published. This article describes the behavior of six wolves in an area of constant daylight during 30 hours, from when the pack killed a Muskox (Ovibos moschatus) calf and yearling on Ellesmere Island, Nunavut, Canada, to when they abandoned the kill remains. Although this is only a single incident, it demonstrates one possible scenario of pack …


Mechanisms For Decisions About The Future, Jeffrey R. Stevens Jan 2011

Mechanisms For Decisions About The Future, Jeffrey R. Stevens

Jeffrey Stevens Publications

Evolutionary and psychological perspectives on decision making remain largely separate endeavors. The bounded rationality approach integrates these two perspectives by focusing on simple, plausible mechanisms of decision making and the cognitive capacities needed to implement these mechanisms. Decisions about the future provide a class of decisions that lend themselves to a bounded rationality approach. Though many different mechanisms may exist for making decisions about the future, only a subset of these mechanisms actually require a representation of the future. The bounded rationality approach helps focus on the cognitive capacities and decision mechanisms that are necessary for a full understanding of …


Evidence For Air Movement Signals In The Agonistic Behaviour Of A Nocturnal Arachnid (Order Amblypygi), Roger D. Santer, Eileen A. Hebets Jan 2011

Evidence For Air Movement Signals In The Agonistic Behaviour Of A Nocturnal Arachnid (Order Amblypygi), Roger D. Santer, Eileen A. Hebets

School of Biological Sciences: Faculty Publications

Many arthropods possess filiform hair sensilla (termed trichobothria in arachnids), which are extremely sensitive detectors of medium particle displacement. Electrophysiological evidence in some taxa suggests that these sensilla can detect air particle displacements resulting from intraspecific communication signals. However, it has not yet been shown for any species that the air particle displacements detected by the filiform hairs are themselves perceived as a ‘signal’ (i.e. that individuals make behavioural decisions based upon the responses of these organs to the displays of conspecifics). We investigate the agonistic behaviour of the whip spider Phrynus marginemaculatus and the role of its trichobothria in …


Geographic Distribution: Osteopilus Septentrionalis (Cuban Treefrog). Usa: Florida: Bradford Co., Linda S. Stevenson, Louis A. Somma Jan 2011

Geographic Distribution: Osteopilus Septentrionalis (Cuban Treefrog). Usa: Florida: Bradford Co., Linda S. Stevenson, Louis A. Somma

Papers in Herpetology

OSTEOPILUS SEPTENTRIONALIS (Cuban Treefrog). USA: FLORIDA: B IlAI)flOIlD Co.: Starke. 703 South Orange Street (29.940 15"N, 82. 11532S'W; WGS84) . 12 December 2009. Linda S. Sleven son. Verified by Melvin P. Gra.mke. Florida Museum of Natural History. University of Florida. UF 162973. First county record (Meshaka et al. 2004. The Exotic Amphibians and Reptiles of Florida. Krieger Publ. Co., Malabar, Florida; Somma 2009. In Nonindigenous Aq uatic Species. USGS: hI rp: II nas.e r.usgs.gov I q ue ries! FactSheet. asp?specieslD=57). One adult collected from inside a mailbox on wall of a residence. Individ ual O. septentrionalis have been sighted at …


Use Of Nape Tags For Marking Offspring Of Precocial Waterbirds, Todd W. Arnold, Daizaburo Shizuka, Bruce E. Lyon, Jeffrey T. Pelayo, Katherine R. Mehl, Joshua J. Traylor, Wendy L. Reed, Courtney L. Amundson Jan 2011

Use Of Nape Tags For Marking Offspring Of Precocial Waterbirds, Todd W. Arnold, Daizaburo Shizuka, Bruce E. Lyon, Jeffrey T. Pelayo, Katherine R. Mehl, Joshua J. Traylor, Wendy L. Reed, Courtney L. Amundson

Papers in Ornithology

Individualized markers that allow organisms to be identified without recapture are invaluable for studies of survival, movement, and behavior. Nape tags consisting of brass safety pins with unique combinations of two or three colored plastic beads were used to mark 5,868 American Coot (Fulica americana) chicks and 331 Ruddy Duck (Oxyura jamaicensis), 157 King Eider (Somateria spectabilis) and 664 White-winged Scoter (Melanitta fusca deglandi) ducklings. These markers allowed for documentation of parent-offspring interactions, post-hatching survival, brood movements and brood-mixing behaviors. Nape tags were inexpensive, easy to make, easy to observe with binoculars …


Systematic Revision Of The Northern Short-Tailed Shrew, Blarina Brevicauda (Say), Wm. David Webster, Nancy D. Moncrief, Jerry R. Choate, Hugh H. Genoways Jan 2011

Systematic Revision Of The Northern Short-Tailed Shrew, Blarina Brevicauda (Say), Wm. David Webster, Nancy D. Moncrief, Jerry R. Choate, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Short-tailed shrews, genus Blarina, are common inhabitants of a variety of terrestrial habitats in most of eastern North America. Of the 4 species currently recognized, the northern short-tailed shrew, Blarina brevicauda (Say, 1823), is the most widely distributed, occurring from southern Canada southward to the central Great Plains and the Appalachian Mountains into Georgia and Alabama and along the East Coast as far south as southeastern North Carolina. It has been more than 65 years since geographic variation within this species has been studied. Accordingly, the objectives of this study were to examine geographic variation in Blarina brevicauda and …


Regulated Commercial Harvest To Manage Overabundant White-Tailed Deer: An Idea To Consider?, Kurt C. Vercauteren, Charles W. Anderson, Timothy R. Van Deelen, David Drake, W. David Walter, Stephen Vantassel, Scott E. Hygnstrom Jan 2011

Regulated Commercial Harvest To Manage Overabundant White-Tailed Deer: An Idea To Consider?, Kurt C. Vercauteren, Charles W. Anderson, Timothy R. Van Deelen, David Drake, W. David Walter, Stephen Vantassel, Scott E. Hygnstrom

United States Department of Agriculture Wildlife Services: Staff Publications

Declines in hunter recruitment coupled with dramatic growth in numbers of white-tailed deer (Odocoileus virginianus) have challenged our ability to manage deer populations through regulated hunting. We review the efficacy of current regulated hunting methods and explain how they are unable to reduce deer numbers sufficiently in some environments. Regulated commercial harvest would provide an additional tool to help state wildlife agencies manage overabundant populations of white-tailed deer. We outline potential means to govern regulated commercial deer harvest and explain how it is compatible with the North American Model of Wildlife Conservation. We identified several benefits, including reduced …


Disease Effects On Lobster Fisheries, Ecology, And Culture: Overview Of Dao Special 6, Donald C. Behringer, Mark J. Butler Iv, Grant D. Stentiford Jan 2011

Disease Effects On Lobster Fisheries, Ecology, And Culture: Overview Of Dao Special 6, Donald C. Behringer, Mark J. Butler Iv, Grant D. Stentiford

Biological Sciences Faculty Publications

Lobsters are prized by commercial and recreational fishermen worldwide, and their populations are therefore buffeted by fishery practices. But lobsters also remain integral members of their benthic communities where predator-prey relationships, competitive interactions, and host-pathogen dynamics push and pull at their population dynamics. Although lobsters have few reported pathogens and parasites relative to other decapod crustaceans, the rise of diseases with consequences for lobster fisheries and aquaculture has spotlighted the importance of disease for lobster biology, population dynamics and ecology. Researchers, managers, and fishers thus increasingly recognize the need to understand lobster pathogens and parasites so they can be managed …


Letter From The Dean, Michael Vayda Jan 2011

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Instructions For Authors, Discovery Editors Jan 2011

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


The Soap Box Use Of Illegal Methods In Kenya’S Rural Communities To Combat Wildlife Damage: A Case Study Of Laikipia, Nixon Sifuna Jan 2011

The Soap Box Use Of Illegal Methods In Kenya’S Rural Communities To Combat Wildlife Damage: A Case Study Of Laikipia, Nixon Sifuna

Human–Wildlife Interactions

No abstract provided.


Comparison Of Fencing Designs For Excluding Deer From Roadways, Daniel W. Stull, William D. Gulsby, James A. Martin, Gino J. D'Angelo, George R. Gallagher, David A. Osborn, Robert J. Warren, Karl V. Miller Jan 2011

Comparison Of Fencing Designs For Excluding Deer From Roadways, Daniel W. Stull, William D. Gulsby, James A. Martin, Gino J. D'Angelo, George R. Gallagher, David A. Osborn, Robert J. Warren, Karl V. Miller

Human–Wildlife Interactions

We evaluated the efficacy of several fencing designs for restricting movements of 18 captive, female white-tailed deer (Odocoelus virginianus), including standard wovenwire fencing (1.2-m, 1.5-m, 1.8-m, 2.1-m, and 2.4-m tall), opaque fencing (1.2-m, 1.5-m, and 1.8-m tall), and an outrigger fence (i.e., 0.6-m outriggers attached to a 1.2-m-tall wire fence angled at 45º). We recorded the number of successful fence crossings for each deer and characterized behaviors associated with each failed crossing attempt. No deer crossed the 2.4-m fence, whereas all deer crossed the 1.2-m fence. We observed no differences in crossing success between woven-wire and opaque fencing …


Too Many Hogs? A Review Of Methods To Mitigate Impact By Wild Boar And Feral Hogs, Giovanna Massei, Sugoto Roy, Richard Bunting Jan 2011

Too Many Hogs? A Review Of Methods To Mitigate Impact By Wild Boar And Feral Hogs, Giovanna Massei, Sugoto Roy, Richard Bunting

Human–Wildlife Interactions

Feral hogs (Sus scrofa) are among the most widely-distributed mammals in the world and have the highest reproductive output compared with other ungulates. Worldwide, feral hogs are increasing in range and numbers. Human–feral hog conflicts include impact on abundance and richness of plant and animal species, crop damage, predation on livestock, vehicle collisions, and disease transmission. We reviewed methods employed to mitigate the impact of feral hogs on human activities and discussed these methods in terms of effectiveness, feasibility, costs, and social acceptance. Traditional methods of control include trapping, angering, shooting, poisoning, and Judas hogs. Nonlethal methods of …


Livestock And Domestic Dog Predations By Wolves In Michigan, Justin L. Edge, Dean E. Beyer Jr., Jerrold L. Belant, Mark J. Jordan, Brian J. Roell Jan 2011

Livestock And Domestic Dog Predations By Wolves In Michigan, Justin L. Edge, Dean E. Beyer Jr., Jerrold L. Belant, Mark J. Jordan, Brian J. Roell

Human–Wildlife Interactions

Wolves (Canis spp.) have recolonized the Great Lakes region and expanded into agricultural areas where there is increasing concern of conflict with livestock. We documented 121 wolf predation events on captive or domestic animals in the Upper Peninsula (UP) of Michigan between April 1996 and April 2009. We investigated the relationship between annual wolf abundance and predation events, seasonality of predations on livestock, and the association between previous winter severity and predations on livestock. The annual number of predations on livestock increased with wolf abundance, and overall, predations on cattle and calves increased during calving season. We observed a …


Public Perceptions Of Bears And Management Interventions In Japan, Ryo Sakurai, Susan K. Jacobson Jan 2011

Public Perceptions Of Bears And Management Interventions In Japan, Ryo Sakurai, Susan K. Jacobson

Human–Wildlife Interactions

Conservation of bears is a challenge globally. In Japan, Asiatic black bears (Ursus thibetanus) and brown bears (Ursus arctos) are considered a nuisance because of agricultural and property damage and personal human danger due to occasional human casualties. Reduction of human–bear conflicts in Japan would improve long-term conservation of bears and reduce risks to human health and safety. To understand Japanese perceptions of and experience with bears, we analyzed results of 5 public surveys and reviewed 29 articles from the research and gray literature in Japan. We compared recommendations for interventions to reduce human–bear conflicts with …


Using Stable Isotope Analysis To Quantify Anthropogenic Foraging In Black Bears, Jerod A. Merkle, Jonathan J. Derbridge, Paul R. Krausman Jan 2011

Using Stable Isotope Analysis To Quantify Anthropogenic Foraging In Black Bears, Jerod A. Merkle, Jonathan J. Derbridge, Paul R. Krausman

Human–Wildlife Interactions

Deciding whether to monitor, aversively condition, relocate, or destroy a problem black bear (Ursus americanus) can be difficult for wildlife managers. Understanding the extent of anthropogenic foraging within bear populations can provide insight for management decisions about black bears. An innovative way to estimate opportunistically the amount of anthropogenic food in an individual or a population of bears is through stable isotope analysis (SIA), where hair samples can provide an index of assimilated nutrients (i.e., diet) for the period of hair growth. Our objective was to use SIA to determine whether there was a difference between diets of …


Misconceptions About Black Bears: A Response To Geist (2011), Lynn L. Rogers, Susan A. Mansfield Jan 2011

Misconceptions About Black Bears: A Response To Geist (2011), Lynn L. Rogers, Susan A. Mansfield

Human–Wildlife Interactions

No abstract provided.


Soap Box The Wildlife Society Responds To Cnn Report On Feral Horses, Laura Bies, Michael Hutchins, Thomas J. Ryder Jan 2011

Soap Box The Wildlife Society Responds To Cnn Report On Feral Horses, Laura Bies, Michael Hutchins, Thomas J. Ryder

Human–Wildlife Interactions

No abstract provided.


Commentary State Of The Berryman Institute, Christopher R. Ayers Jan 2011

Commentary State Of The Berryman Institute, Christopher R. Ayers

Human–Wildlife Interactions

No abstract provided.


Cost-Benefit Analysis Of Managed Shotgun Hunts For Suburban White-Tailed Deer, Ryan D. Hubbard, Clayton K. Nielsen Jan 2011

Cost-Benefit Analysis Of Managed Shotgun Hunts For Suburban White-Tailed Deer, Ryan D. Hubbard, Clayton K. Nielsen

Human–Wildlife Interactions

Deer managers often utilize managed hunts to curtail burgeoning white-tailed deer (Odocoileus virginianus) populations in suburban areas. Although several studies have used population modeling to focus management, these efforts generally provide only harvest numbers, without considering the spatial placement of hunters on the landscape. Further, few studies have modeled management effort as deer density changes during the hunt. We modeled 2 types of managed shotgun hunts, a replacement hunt, where the stand of each successful hunter would be filled the following day, thus, ensuring the same number of hunters would be present each day of the hunt, and …


Calcitonin-Induced Alterations To The Ultimobranchial And Parathyroid Glands In The Garden Lizard Calotes Versicolor, Ajai K. Srivastav, Bhawna Srivastava, Diwakar Mishra, Sunil K. Srivastav, Nobuo Suzuki Jan 2011

Calcitonin-Induced Alterations To The Ultimobranchial And Parathyroid Glands In The Garden Lizard Calotes Versicolor, Ajai K. Srivastav, Bhawna Srivastava, Diwakar Mishra, Sunil K. Srivastav, Nobuo Suzuki

Turkish Journal of Zoology

Calotes versicolor specimens were divided into 2 groups of equal quantity (groups A and B). Group A was injected daily with 0.1 mL/50 g bw of vehicle. Group B was injected daily with 0.5 \mug/50 g bw of salmon calcitonin. Lizards in each group were sacrificed 2 h after the last injection on the 1st, 3rd, 5th, 10th, and 15th day of treatment. After collection of blood samples, ultimobranchial and parathyroid glands were fixed. The plasma calcium level in the lizards treated with calcitonin decreased on day 1. This response progressed up to day 5; thereafter the level was elevated, …


A New Species Of Westralianus Boucek 1988 (Hymenoptera:Torymidae: Megastigminae) From Turkey, Mi̇kdat Doğanlar Jan 2011

A New Species Of Westralianus Boucek 1988 (Hymenoptera:Torymidae: Megastigminae) From Turkey, Mi̇kdat Doğanlar

Turkish Journal of Zoology

A new species of the Australian genus Westralianus Boucek (Hymenoptera: Chalcidoidea, Torymidae) is described from Altınözü, Hatay, Turkey. Some new diagnostic characters of the genus are provided by inclusion of a second species in the genus. The new species, W. altinoezus n.sp., is compared with the type species, W. microstigma Boucek 1988. The new species was recorded as a parasitoid of caterpillars of an unknown species of Lepidoptera living in galls of Gymnosporangium confusum (Uredinales: Pucciniaceae) on shoots of Crataegus monogyna Jacq. A description of the new species is provided and its diagnostic characters are photographed.


A New Trygetus Species From Central Asia (Araneae: Zodariidae), Yuri Marusik Jan 2011

A New Trygetus Species From Central Asia (Araneae: Zodariidae), Yuri Marusik

Turkish Journal of Zoology

The new species Trygetus gromovi sp.n. is described based on the holotype female collected from eastern Turkmenistan. It is related to T. jacksoni Marusik & Guseinov, 2003 from Azerbaijan.