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Countability Of Sandhill Cranes In Aerial Surveys, DOUGLAS H. JOHNSON, JOHN W. SOLBERG, COURTNEY L. AMUNDSON 2010 USGS Northern Prairie Wildlife Research Center

Countability Of Sandhill Cranes In Aerial Surveys, Douglas H. Johnson, John W. Solberg, Courtney L. Amundson

Proceedings of the North American Crane Workshop

Aerial surveys are used to monitor populations of many wildlife species, including sandhill cranes (Grus canadensis). In addition to the usual problems of detectability (involving both availability and perceptibility), aerial surveys of concentrated animals are subject to countability issues; from a rapidly moving aircraft, observers cannot count or accurately estimate the number of animals in a large group. Calibration is sometimes performed in an effort to adjust aerial counts for incomplete detectability and countability by calculating the ratio of animals actually in a group to the number in the group estimated from the aircraft. Here we explore alternative, model-based approaches ...


Aerial Survey Techniques For Breeding Whooping Cranes, BRIAN W. JOHNS 2010 Canadian Wildlife Service

Aerial Survey Techniques For Breeding Whooping Cranes, Brian W. Johns

Proceedings of the North American Crane Workshop

Since the discovery of nesting whooping cranes in Wood Buffalo National Park, the Canadian Wildlife Service has conducted aerial surveys to monitor the population. Aerial survey techniques have varied over the years; however, they have generally followed the techniques used by the author since 1991. The technique involves flying a combination of circular flights and transects over known nesting territories and similar looking marshes likely to contain breeding whooping cranes. These aerial surveys account for nearly 100% of the breeding whooping cranes each year.


The Direct Autumn Release Of Whooping Cranes Into The Eastern Migratory Population: A Summary Of The First Three Years, MARIANNE M. WELLINGTON, RICHARD P. URBANEK 2010 International Crane Foundation

The Direct Autumn Release Of Whooping Cranes Into The Eastern Migratory Population: A Summary Of The First Three Years, Marianne M. Wellington, Richard P. Urbanek

Proceedings of the North American Crane Workshop

This paper describes methods used in an experimental direct autumn release of captive produced whooping cranes (Grus americana) into a reintroduced migratory population in eastern North America. Eighteen chicks (4 in 2005, 4 in 2006, and 10 in 2007) were eventually released in the vicinity of adult whooping cranes or wild sandhill cranes (G. canadensis). Chicks were reared by costumed aviculturists using strict isolation-rearing techniques at the International Crane Foundation (ICF) and then transferred to Necedah National Wildlife Refuge in central Wisconsin. Initially, 23 chicks were transferred from ICF to Necedah at ages of 17-46 days. Isolation-rearing techniques continued in ...


Evaluating Propagation Method Performance Over Time With Bayesian Updating: An Application To Incubator Testing, SARAH J. CONVERSE, JANE N. CHANDLER, GLENN H. OLSEN, CHARLES C. SHAFER 2010 USGS Patuxent Wildlife Research Center

Evaluating Propagation Method Performance Over Time With Bayesian Updating: An Application To Incubator Testing, Sarah J. Converse, Jane N. Chandler, Glenn H. Olsen, Charles C. Shafer

Proceedings of the North American Crane Workshop

In captive-rearing programs, small sample sizes can limit the quality of information on performance of propagation methods. Bayesian updating can be used to increase information on method performance over time. We demonstrate an application to incubator testing at USGS Patuxent Wildlife Research Center. A new type of incubator was purchased for use in the whooping crane (Grus americana) propagation program, which produces birds for release. We tested the new incubator for reliability, using sandhill crane (Grus canadensis) eggs as surrogates. We determined that the new incubator should result in hatching rates no more than 5% lower than the available incubators ...


Current Status Of Lesser Sandhill Cranes In Yakutia, INGA BYSYKATOVA, SERGEY SLEPTSOV, NIKOLAY VASILIEV 2010 Institute of Biological Problems of the Permafrost Zone

Current Status Of Lesser Sandhill Cranes In Yakutia, Inga Bysykatova, Sergey Sleptsov, Nikolay Vasiliev

Proceedings of the North American Crane Workshop

In Yakutia, the sandhill crane (Grus canadensis canadensis) was considered a common bird in 1957 on the Primorie tundra from the Kolyma River to the Alazeya River. In 1980 the area of the species’ supposed breeding grounds within the Kolyma- Indigirka interfluve comprised 34,600 km2. In 1984-85, the breeding grounds extended west to the Sundrun River, with the total area reaching 49,400 km2. At present, the westernmost sandhill crane range is on the tundra along the lower reaches of the Berelekh River. This region joins the higher density Siberian crane (G. leucogeranus) range, so that the ranges of ...


The Response Of Nesting Mississippi Sandhill Cranes To Growing Season Prescribed Fires, LAUREN BILLODEAUX, SCOTT HEREFORD, SAMI GRAY 2010 U.S. Fish and Wildlife Service, Mississippi Sandhill Crane National Wildlife Refuge

The Response Of Nesting Mississippi Sandhill Cranes To Growing Season Prescribed Fires, Lauren Billodeaux, Scott Hereford, Sami Gray

Proceedings of the North American Crane Workshop

Prescribed burning is the most natural and cost effective method of restoring and maintaining the coastal longleaf pine (Pinus palustris) savannah ecosystem that provides feeding and nesting areas for the critically endangered Mississippi sandhill crane (MSC, Grus canadensis pulla). Though growing season burns have shown the greatest results in controlling encroaching shrubs and pines as compared to dormant season burns, burning in the spring and early summer has the potential to disrupt the nesting activities of the MSC population. In order to address both the short and long term needs of this crane population, we make every effort to burn ...


Summary Of Sandhill Crane Sport Harvest In Canada 1975-2006, ADRIANNA C. ARAYA, KAMMIE L. KRUSE, KEITH D. WARNER 2010 U.S. Fish and Wildlife Service, Migratory Birds and State Programs

Summary Of Sandhill Crane Sport Harvest In Canada 1975-2006, Adrianna C. Araya, Kammie L. Kruse, Keith D. Warner

Proceedings of the North American Crane Workshop

Knowledge of harvest in all areas where the mid-continent population (MCP) of sandhill cranes (Grus canadensis) occurs is critical to managing the population in a sustainable manner. The harvest of MCP in the U.S. has been well documented; however, the harvest in Canada has received less attention. The Canadian Wildlife Service initiated a National Harvest Survey program in 1967, but all sampling variables were not directly comparable until 1975. In this paper, we summarize crane harvest in Canada during the 1975-2006 hunting seasons for Saskatchewan and Manitoba, the 2 provinces with significant sport hunting harvest of sandhill cranes. There ...


Effects Of Changes In Agriculture And Abundance Of Snow Geese On Carrying Capacity Of Sandhill Cranes During Spring, Aaron T. Pearse, Gary L. Krapu, David A. Brandt 2010 U.S. Geological Survey, Northern Prairie Wildlife Research Center

Effects Of Changes In Agriculture And Abundance Of Snow Geese On Carrying Capacity Of Sandhill Cranes During Spring, Aaron T. Pearse, Gary L. Krapu, David A. Brandt

Proceedings of the North American Crane Workshop

The Central Platte River Valley (CPRV) in Nebraska is a key spring staging area for approximately 80% of the midcontinent population of sandhill cranes (Grus canadensis). Evidence that cranes currently are acquiring fat less efficiently than in the past along with a large increase in use of the CPRVby snow geese (Chen caerulescens) led us to evaluate waste-corn availability and index spatial and temporal variation in abundance of sandhill cranes and waterfowl using the CPRV. We also developed a predictive model to assess impact of changes in availability of corn under past, present, and potential future conditions. Predicted energy demand ...


Mississippi Sandhill Crane Chicks Produced From Cryopreserved Semen, ANAHID M. PAHLAWANIAN, MEGAN L. SAVOIE, VANESSA PEERY, BETSY L. DRESSER, S. P. LEIBO 2010 Audubon Nature Institute Center for Research of Endangered Species

Mississippi Sandhill Crane Chicks Produced From Cryopreserved Semen, Anahid M. Pahlawanian, Megan L. Savoie, Vanessa Peery, Betsy L. Dresser, S. P. Leibo

Proceedings of the North American Crane Workshop

The Mississippi sandhill crane (MSC, Grus canadensis pulla), 1 of 6 subspecies of sandhill cranes, is classified as critically endangered and was placed on the United States' List of Endangered Fish and Wildlife in 1973. For 13 years starting in 1996, the Audubon Center for Research of Endangered Species (ACRES) and Freeport-McMoran Species Survival Center (SSC) in New Orleans have been contributing to the MSC Recovery Program. Through successful captive propagation of MSCs by use of natural breeding and artificial insemination, more than 150 chicks raised at SSC have been released into the wild population at the MSC National Wildlife ...


Functional Feeding Groups, Species Richness, And Spatial Distributions Of Fishes In Rocky And Sandy Beach Habitats Of St. John, U.S. Virgin Islands, Eugene G. Maurakis, George E. Maurakis, Demetri E. Maurakis 2010 University of Richmond, Science Museum of Virginia

Functional Feeding Groups, Species Richness, And Spatial Distributions Of Fishes In Rocky And Sandy Beach Habitats Of St. John, U.S. Virgin Islands, Eugene G. Maurakis, George E. Maurakis, Demetri E. Maurakis

Virginia Journal of Science

Objectives were to identify and compare fish species richness, functional feeding group richness and diversity, and delineate distributions of fishes at rocky and sandy beach habitats at St. John, U.S. Virgin Islands. Visual observations using snorkel and mask were made at 3-m intervals seaward from shore during daylight hours. A total of 69 taxa (67 species) representing 33 families of fishes were observed. Total (53) and average fish species richness (32.7) at rocky beach habitats were greater than those (total=43; average=24.3) at sandy beach habitats. Twelve functional feeding groups were identified (diurnal planktivores, excavators/eroders ...


A Revision Of The Argentinean Endemic Genus Eucranium Brullé (Coleoptera: Scarabaeidae: Scarabaeinae) With Description Of One New Species And New Synonymies, Federico C. Ocampo 2010 CCT-CONICET Mendoza

A Revision Of The Argentinean Endemic Genus Eucranium Brullé (Coleoptera: Scarabaeidae: Scarabaeinae) With Description Of One New Species And New Synonymies, Federico C. Ocampo

Papers in Entomology

The South American genus Eucranium Brullé has been revised and now includes six species: E. arachnoides Brullé, E. belenae Ocampo new species, E. cyclosoma Burmeister, E. dentifrons Guérin-Méneville, E. planicolle Burmeister, and E. simplicifrons Fairmaire. Eucranium pulvinatum Burmeister is a new junior synonym of Eucranium arachnoides Brullé, and Eucranium lepidum Burmeister is a new junior synonym of E. dentifrons Guérin-Méneville. The following lectotypes and neotypes are designated: Eucranium pulvinatum Burmeister, lectotype; Eucranium planicolle Burmeister, lectotype; Psammotrupes dentifrons Guérin-Méneville, neotype; and Eucranium lepidum Burmeister, neotype. Description of the genus and new species, diagnosis and illustrations, and distribution maps are provided for ...


What Is The Taxonomic Identity Of Minnesota Wolves?, L. David Mech 2010 USGS Northern Prairie Wildlife Research Center

What Is The Taxonomic Identity Of Minnesota Wolves?, L. David Mech

USGS Northern Prairie Wildlife Research Center

The taxonomic identity of the historical and current wolf (Canis lupus L., 1758 or Canis lycaon Schreber, 1775 or their hybrids) population in Minnesota (MN) and the Great Lakes region has been, and continues to be, controversial. So too does its legal status under the U.S. Endangered Species Act. This review summarizes the morphological and genetic information about that population and concludes that historically the MN population consisted of a gray wolf (C. lupus) in the west and an eastern type (Canis lupus lycaon or C. lycaon) in the east with intergrades or hybrids between the two in most ...


Migration Of Northern Yellowstone Elk: Implications Of Spatial Structuring, P. J. White, Kelly M. Proffitt, L. David Mech, Shaney B. Evans, Julie A. Cunningham, Kenneth L. Hamlin 2010 National Park Service

Migration Of Northern Yellowstone Elk: Implications Of Spatial Structuring, P. J. White, Kelly M. Proffitt, L. David Mech, Shaney B. Evans, Julie A. Cunningham, Kenneth L. Hamlin

USGS Northern Prairie Wildlife Research Center

Migration can enhance survival and recruitment of mammals by increasing access to higher-quality forage or reducing predation risk, or both. We used telemetry locations collected from 140 adult female elk during 2000– 2003 and 2007–2008 to identify factors influencing the migration of northern Yellowstone elk. Elk wintered in 2 semidistinct herd segments and migrated 10–140 km to at least 12 summer areas in Yellowstone National Park (YNP) and nearby areas of Montana. Spring migrations were delayed after winters with increased snow pack, with earlier migration in years with earlier vegetation green-up. Elk wintering at lower elevations outside YNP ...


Proportion Of Calves And Adult Muskoxen, Ovibos Moschatus Killed By Gray Wolves, Canis Lupus, In July On Ellesmere Island, L. David Mech 2010 USGS Northern Prairie Wildlife Research Center

Proportion Of Calves And Adult Muskoxen, Ovibos Moschatus Killed By Gray Wolves, Canis Lupus, In July On Ellesmere Island, L. David Mech

USGS Northern Prairie Wildlife Research Center

Generally Gray Wolves (Canis lupus L., 1758) tend to focus predation on young-of-the-year ungulates during summer, and I hypothesized that wolves preying on Muskoxen (Ovibos moschatus Zimmerman, 1780) in summer would follow that trend. Over 23 July periods observing wolves on Ellesmere Island, Nunavut, Canada, I found that packs of 2-12 adult wolves killed seven calves, one yearling, and five adult muskoxen at distances of 2.9 to 32 km from their current dens and pups. Given a possible bias against finding calves because of their fewer remains, these results do not necessarily refute the hypothesis, but they do make ...


Prolonged Intensive Dominance Behavior Between Gray Wolves, Canis Lupus, L. David Mech, H. Dean Cluff 2010 USGS Northern Prairie Wildlife Research Center

Prolonged Intensive Dominance Behavior Between Gray Wolves, Canis Lupus, L. David Mech, H. Dean Cluff

USGS Northern Prairie Wildlife Research Center

Dominance is one of the most pervasive and important behaviors among wolves in a pack, yet its significance in free-ranging packs has been little studied. Insights into a behavior can often be gained by examining unusual examples of it. In the High Arctic near Eureka, Nunavut, Canada, we videotaped and described an unusually prolonged and intensive behavioral bout between an adult male Gray Wolf (Canis lupus) and a male member of his pack, thought to be a maturing son.With tail raised, the adult approached a male pack mate about 50 m from us and pinned and straddled this packmate ...


From Energy Gradient And Natural Selection To Biodiversity And Stability Of Ecosystems, Bo Deng 2010 University of Nebraska - Lincoln

From Energy Gradient And Natural Selection To Biodiversity And Stability Of Ecosystems, Bo Deng

Faculty Publications, Department of Mathematics

The purpose of this paper is to incorporate well-established ecological principles into a foodweb model consisting of four trophic levels --- abiotic resources, plants, herbivores, and carnivores. The underlining principles include Kimura's neutral theory of genetic evolution, Liebig's Law of the Minimum for plant growth, Holling's functionals for herbivore foraging and carnivore predation, the One-Life Rule for all organisms, and Lotka-Volterra's model for intraand interspecific competitions. Numerical simulations of the model led to the following statistical findings: (a) particular foodwebs can give contradicting observations on biodiversity and productivity, in particular, all known functional forms -- - positive, negative, sigmoidal ...


Systematics Of The Genus Ptychadena Boulenger, 1917 (Anura: Ptychadenidae) From Democratic Republic Of The Congo, Katrina Marie Weber 2010 University of Texas at El Paso

Systematics Of The Genus Ptychadena Boulenger, 1917 (Anura: Ptychadenidae) From Democratic Republic Of The Congo, Katrina Marie Weber

Open Access Theses & Dissertations

This thesis increases the scope of previous phylogenetic analyses that revealed high levels of genetic differentiation within the anuran genus Ptychadena. Herein, I increase sampling of Central African populations of Ptychadena by over six times to examine their relationships to other African populations and to search for cryptic species. This study represents the most comprehensive molecular phylogeny of Ptychadena to date. A total of three mitochondrial (12S, 16S, and cyt b) and two nuclear (RAG1 and rhodopsin) genes were sequenced for 67 specimens of Ptychadena. Maximum parsimony, maximum likelihood, and Bayesian analyses were conducted. These analyses revealed a great deal ...


Quite A Year And New Life For Panthera Tigris: The St. Petersburg Declaration And The Future Of Wild Tigers, Philip J. Nyhus, Lisa Ann Tekancic 2010 Colby College

Quite A Year And New Life For Panthera Tigris: The St. Petersburg Declaration And The Future Of Wild Tigers, Philip J. Nyhus, Lisa Ann Tekancic

Faculty Scholarship

No abstract provided.


Montane Meadow Change During Drought Varies With Background Hydrologic Regime And Plant Functional Group, Diane M. Debinski, Hadley Alexander Wickham, Kelly Kindscher, Jennet C. Caruthers, Matthew Germino 2010 Iowa State University

Montane Meadow Change During Drought Varies With Background Hydrologic Regime And Plant Functional Group, Diane M. Debinski, Hadley Alexander Wickham, Kelly Kindscher, Jennet C. Caruthers, Matthew Germino

Ecology, Evolution and Organismal Biology Publications

Climate change models for many ecosystems predict more extreme climatic events in the future, including exacerbated drought conditions. Here we assess the effects of drought by quantifying temporal variation in community composition of a complex montane meadow landscape characterized by a hydrological gradient. The meadows occur in two regions of the Greater Yellowstone Ecosystem (Gallatin and Teton) and were classified into six categories (M1–M6, designating hydric to xeric) based upon Satellite pour l’Observation de la Terre (SPOT) satellite imagery. Both regions have similar plant communities, but patch sizes of meadows are much smaller in the Gallatin region. We ...


Light Whole Genome Sequence For Snp Discovery Across Domestic Cat Breeds, James C. Mullikin, Nancy F. Hansen, Lei Shen, Heather Ebling, William F. Donahue, Wei Tao, David J. Saranga, Adrianne Brand, Marc J. Rubenfield, Alice C. Young, Pedro Cruz, Carlos Driscoll, Victor David, Samer W. K. Al-Murrani, Mary F. Locniskar, Mitchell S. Abrahamsen, Stephen J. O'Brien, Douglas R. Smith, Jeffrey A. Brockman 2010 National Institutes of Health at Bethesda

Light Whole Genome Sequence For Snp Discovery Across Domestic Cat Breeds, James C. Mullikin, Nancy F. Hansen, Lei Shen, Heather Ebling, William F. Donahue, Wei Tao, David J. Saranga, Adrianne Brand, Marc J. Rubenfield, Alice C. Young, Pedro Cruz, Carlos Driscoll, Victor David, Samer W. K. Al-Murrani, Mary F. Locniskar, Mitchell S. Abrahamsen, Stephen J. O'Brien, Douglas R. Smith, Jeffrey A. Brockman

Biology Faculty Articles

Background

The domestic cat has offered enormous genomic potential in the veterinary description of over 250 hereditary disease models as well as the occurrence of several deadly feline viruses (feline leukemia virus -- FeLV, feline coronavirus -- FECV, feline immunodeficiency virus - FIV) that are homologues to human scourges (cancer, SARS, and AIDS respectively). However, to realize this bio-medical potential, a high density single nucleotide polymorphism (SNP) map is required in order to accomplish disease and phenotype association discovery.

Description

To remedy this, we generated 3,178,297 paired fosmid-end Sanger sequence reads from seven cats, and combined these data with the publicly ...


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