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Articles 2071 - 2100 of 2805
Full-Text Articles in Animal Sciences
Conclusion, L. David Mech, Luigi Boitani
Conclusion, L. David Mech, Luigi Boitani
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
WOLVES CAN LIVE almost anywhere in the Northern Hemisphere, and almost everywhere they do, they are an issue. In the vast emptiness of the northern tundra or the Arabian desert, on the outskirts of a European town or in the safety of an American national park, in meager agricultural lands in India or mountains in rich Norway or Switzerland, wolves always attract people's attention. Wolves form a key part of many ecosystems, and they are considered charismatic creatures by most human cultures. Thus they polarize public opinion and make headlines year after year.
If we look back 6o years to …
References, L. David Mech, Luigi Boitani
References, L. David Mech, Luigi Boitani
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Abrams, P. A. 2000. The evolution of predator-prey interactions. Annu. Rev. Ecol. Syst. 31:79-105.
Abuladze, K. I. 1964. Osnovy Tsestodologii. Vol. IV. Teniatylentochnye gel' minty zhivotnykh i cheloveka i vyzyvaevaniia. Nauka, Moscow. 530 pp.
Achuff, P. L., and R. Petocz. 1988. Preliminary resource inventory of the Arjin Mountains Nature Reserve, Xinjiang, People's Republic of China. World Wide Fund for Nature, Gland, Switzerland. 78 pp.
Ackerman, B. B., F. A. Leban, M. D. Samuel, and E. 0. Garton. 1990. User's manual for program Home Range. 2d ed. Technical Report no. 15. Forestry, Wildlife, and Range Experiment Station, University ofldaho, Moscow.
Acorn, …
Bats Of Nevis, Northern Lesser Antilles, Scott C. Pedersen, Hugh H. Genoways, Matthew N. Morton, James W. Johnson, Siân E. Courts
Bats Of Nevis, Northern Lesser Antilles, Scott C. Pedersen, Hugh H. Genoways, Matthew N. Morton, James W. Johnson, Siân E. Courts
University of Nebraska State Museum: Mammalogy Papers
Only one species of bat, Molossus molossus, previously has been documented as occurring on the northern Lesser Antillean island of Nevis. Field research and reviews of existing museum collections have provided documentation based on voucher specimens for an additional seven species occurring on the island — Noctilio leporinus, Brachyphylla cavernarum, Monophyllus plethodon, Ardops nichollsi, Artibeus jamaicensis, Natalus stramineus, and Tadarida brasiliensis. The biological diversity of the chiropteran fauna on Nevis is similar to that found on other islands in the northern Lesser Antilles. Ecologically, this is a simple chiropteran fauna, including one …
Isolation And Characterisation Of Microsatellites In The Asian Arowanas, Scleropages Formosus, Janethi Sivananthan
Isolation And Characterisation Of Microsatellites In The Asian Arowanas, Scleropages Formosus, Janethi Sivananthan
Student Works (2000-2009)
The Asian Arowana (Scleropages /ormosusu) is a primitive freshwater fish form the Jurassic era. It is very hardy and can live a good half century. Its low fecundity rate (about 30 eggs per batch), coupled with habitat degradation, threaten the future survivability of this fish (Khan et al., 1996). It was once close to extinction. In this study, microsatellites were used to study the allele frequencies, heterozygosity as well as the genetic differences among varieties. To identify microsatellite loci without the expense of library screening, a new strategy has been proposed by Fisher et al. (1996). This approach, called the …
Contributions To The Mammalogy Of Mongolia, With A Checklist Of The Species Of The Country, David S. Tinnin, Jon L. Dunnum, Jorge A. Salazar-Bravo, Nyamsuren Batsaikhan, M. Scott Burt, Scott Lyell Gardner, Terry L. Yates
Contributions To The Mammalogy Of Mongolia, With A Checklist Of The Species Of The Country, David S. Tinnin, Jon L. Dunnum, Jorge A. Salazar-Bravo, Nyamsuren Batsaikhan, M. Scott Burt, Scott Lyell Gardner, Terry L. Yates
Harold W. Manter Laboratory of Parasitology: Faculty Publications
We present accounts for 40 species of mammals collected from 15 localities in the Mongolian People's Republic. Accounts include taxonomic, morphometric, reproductive and ecological information, as well as trap effort and success. In addition, we include a brief history of mammalogical work within Mongolia, a taxonomically updated species list for the country, and a list of institutions with holdings of Mongolian mammals.
Clarifying The Status Of The Caucasian Black Grouse: Workshop Report, Ilse Storch
Clarifying The Status Of The Caucasian Black Grouse: Workshop Report, Ilse Storch
Galliformes Specialist Group and Affiliated Societies: Conference Proceedings
Clarifying the Status of the Caucasian Black Grouse: Workshop Report
Final version, October 2002
The GSG held a workshop on the Caucasian Black Grouse (CBG) on 21 August 2002 during the 9th International Grouse Symposium (IGS) in Beijing, China. The workshop’s objectives were:
· to bring together scientists from the CBG´s range countries, to enable them to meet with international grouse experts, and to strengthen their contacts with the GSG;
· to increase awareness and interest regarding the CBG in the international scientific community and among GSG members;
· to initiate concrete steps towards field surveys and research studies on …
Wpa News 69 (2002), World Pheasant Association
Wpa News 69 (2002), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (May 2002), number 69
Published by the World Pheasant Association
Fisheries Research Report No. 133 - Preliminary Assessment And Seasonal Fluctuations In The Fish Biota Inhabiting The Concentrator Ponds Of Dampier Salt, Port Hedland, With Options For The Potential Application Of Results, Brett Molony, Gareth Parry
Fisheries Research Report No. 133 - Preliminary Assessment And Seasonal Fluctuations In The Fish Biota Inhabiting The Concentrator Ponds Of Dampier Salt, Port Hedland, With Options For The Potential Application Of Results, Brett Molony, Gareth Parry
Fisheries Research Reports
The concentrator ponds (CPs) of Dampier Salt, Port Hedland, cover an area in excess of 7 300 ha. Water is pumped from two adjacent, mangrove-lined estuaries at certain times of the year and small and larvae fishes are carried into the ponds, becoming trapped. A survey of the fish biota within the CPs was undertaken at four time periods between May 2000 and February 2001 to identify the species of fishes present and to estimate their abundances and distribution throughout the CPs. Further, the Artemia resources within the CPs were also assessed for identification of species and quality.
Forty two …
Fisheries Research Report No. 134, Vol 1 - Towards An Assessment Of The Natural And Human Use Impacts On The Marine Environment Of The Abrolhos Islands, F J. Webster, C J. Dibden, C F. Chubb
Fisheries Research Report No. 134, Vol 1 - Towards An Assessment Of The Natural And Human Use Impacts On The Marine Environment Of The Abrolhos Islands, F J. Webster, C J. Dibden, C F. Chubb
Fisheries Research Reports
The State Territorial Waters surrounding the Abrolhos Islands are gazetted as a Fish Habitat Protection Area and vested with the Minister for Fisheries under the Fish Resources Management Act 1994. Three Fisheries Management Papers have identified management priorities for the marine environment at the Abrolhos Islands:
- Management of the Houtman Abrolhos System
- Aquaculture Plan for the Houtman Abrolhos Islands
- Sustainable Tourism Plan for the Houtman Abrolhos Islands.
These plans and other national and international obligations to examine the effect of extractive and non-extractive anthropogenic activities on marine habitats (eg. Environment Protection and Biodiversity Conservation Act 1999) led to …
Genomic Microsatellites As Evolutionary Chronometers: A Test In Wild Cats, Carlos A. Driscoll, Marilyn Menotti-Raymond, George Nelson, David Goldstein, Stephen J. O'Brien
Genomic Microsatellites As Evolutionary Chronometers: A Test In Wild Cats, Carlos A. Driscoll, Marilyn Menotti-Raymond, George Nelson, David Goldstein, Stephen J. O'Brien
Biology Faculty Articles
Nuclear microsatellite loci (2- to 5-bp tandem repeats) would seem to be ideal markers for population genetic monitoring because of their abundant polymorphism, wide dispersal in vertebrate genomes, near selective neutrality, and ease of assessment; however, questions about their mode of generation, mutation rates and ascertainment bias have limited interpretation considerably. We have assessed the patterns of genomic diversity for ninety feline microsatellite loci among previously characterized populations of cheetahs, lions and pumas in recapitulating demographic history. The results imply that the microsatellite diversity measures (heterozygosity, allele reconstitution and microsatellite allele variance) offer proportionate indicators, albeit with large variance, of …
Rapid Ecological Assessment Of The Northern Mixedgrass Prairie Ecoregion (Nebraska Portion), Gerry Steinauer
Rapid Ecological Assessment Of The Northern Mixedgrass Prairie Ecoregion (Nebraska Portion), Gerry Steinauer
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This study was conducted as part of The Nature Conservancy’s (TNC) project to conduct ecoregional conservation planning throughout the continental United States. TNC contracted with the Nebraska Game and Parks Commission (NGPC) to conduct a rapid ecological assessment (REA) of the portion of the Northern Mixedgrass Prairie ecoregion (NMGP) occurring in Nebraska. This report concludes that agreement. Roughly the northern 1/5 of central Nebraska occurs within the NMGP (Figure 1). This ecoregion also includes extensive area of central South Dakota and central North Dakota. The objective of this study was to conduct a REA of the untilled landscapes within the …
Tragopan: Newsletter Of The Wpa/Species Survival Commission/Birdlife Pheasant Specialist Group 16 (2002), World Pheasant Association, Birdlife International, Iucn Species Survival Commission Pheasant Specialist Group
Tragopan: Newsletter Of The Wpa/Species Survival Commission/Birdlife Pheasant Specialist Group 16 (2002), World Pheasant Association, Birdlife International, Iucn Species Survival Commission Pheasant Specialist Group
Galliformes Specialist Group and Affiliated Societies: Newsletters
Issue 16 (March 2002)
Editorial, Stuart Marsden
From the Chairman, Peter Garson
Cheer pheasant drawing, Dave Showler
Project roundup
News from PSG
Action Plan project review
Other news
Newly published
Research reports
Some notes on behaviour in golden pheasant Chrysolophus pictus, Liang Wei, Zheng Guangmei, Zhang Zhengwang, and Ding Changqing
Studies on habitat selection and home range of Reeves 's pheasant Syrmaticus reevesii using radiotracking techniques: Report on the progress of a WPA project, Zhang Zhengwang
Research on Sclater's monal in westem Yunnan, China: APA progress report, July to December 2001, Han Lianxian
The status and distribution of green peafowl …
Wpa News 70 (2002/2003), World Pheasant Association
Wpa News 70 (2002/2003), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2002/2003), number 70
Published by the World Pheasant Association
Wpa News 68 (2002), World Pheasant Association
Wpa News 68 (2002), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (January 2002), number 68
Published by the World Pheasant Association
Quail V: Proceedings Of The Fifth National Quail Symposium (January 23-27, 2002 : Corpus Christi, Texas), Stephen J. Demaso, William P. Kuvelsky Jr., Fidel Hernández, Michael E. Berger
Quail V: Proceedings Of The Fifth National Quail Symposium (January 23-27, 2002 : Corpus Christi, Texas), Stephen J. Demaso, William P. Kuvelsky Jr., Fidel Hernández, Michael E. Berger
Galliformes Specialist Group and Affiliated Societies: Conference Proceedings
PLENARY SESSION
Arizona Quail: Species in Jeopardy? Ron Engel-Wilson and William P. Kuvlesky, Jr.
Emerging Trends in Midwest Bobwhite Culture, Thomas V. Dailey
Quail Management: Issues, Concerns, and Solutions for Public and Private Lands: A Southeastern Perspective, L. Wes Burger
Rangewide Trends in Landuse and Northern Bobwhite Abundance: An Exploratory Analysis, Markus J. Peterson, X. Ben Wu, and Paikho Rho
Keynote Address: Ideas, Landscapes, and Conservation's New Frontier, Shane P. Mahoney
Banquet Remarks: Sustaining the 'Quail Wave' in the Southern Great Plains, Dale Rollins
IMPACTS OF DEPREDATION ON QUAIL
Coyotes: Friend or Foe of Northern Bobwhite in Southern Texas, Scott …
Morphological Variation Of Allocreadium Lobatum (Digenea: Allocreadiidae) In The Creek Chub, Semotilus Atromaculatus (Osteichthyes: Cyprinidae), In Nebraska, Usa, Monte S. Willis
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Allocreadium lobatum Wallin 1909, a parasite of fresh-water fish, was originally described as having distinct lobate testes, and subsequent descriptions have left this original description unchanged. The present study quantifies the observation of distinctly non-lobate testes that could be categorized as round or asymmetrical in addition to the previously described lobate testes. Six hundred thirty-six A. lobatum were collected from 228 Semotilus atromaculatus over a 9 month period. Overall, 21.3%, 61.6%, and 16% were found to be round, asymmetrical, and lobate testes respectively (N = 1,071). Analysis of testis morphology found the increasing presence of lobate testis as …
Annual Review Of The World Pheasant Association 2001/2002, World Pheasant Association
Annual Review Of The World Pheasant Association 2001/2002, World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Chairman of Trustees' report, Richard P. Howard
The way ahead, Dick Potts
Treasurer's report and accounts, Ian F. Hoggarth
Conservation activities in 2001/2002 (including South Asia Office), Philip J. K. McGowan and Rahul Kaul
Pheasant Specialist Group report, Peter J. Garson
Partridge, Quail and Francolin Specialist Group report, John P. Carroll
Grouse Specialist Group report, Ilse Storch
Megapode Specialist Grouse report, René W. R. J. Dekker
Cracid Specialist Group report, Daniel M. Brooks
Conservation Breeding Activities, Han Assink, John Corder, and Gary Robbins
Plight of prairie grouse in Kansas, R. J. Robel
Bruijn's brush-turkey observed in the wild for the …
Development Of The Muskox Lungworm, Umingmakstrongylus Pallikuukensis (Protostrongylidae), In Gastropods In The Arctic, Susan J. Kutz, Eric P. Hoberg, John Nishi, Lydden Polley
Development Of The Muskox Lungworm, Umingmakstrongylus Pallikuukensis (Protostrongylidae), In Gastropods In The Arctic, Susan J. Kutz, Eric P. Hoberg, John Nishi, Lydden Polley
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Development of the muskox protostrongylid lungworm, Umingmakstrongylus pallikuukensis, in its slug intermediate host, Deroceras laeve, was investigated under field conditions in the Arctic. Every two weeks, from 19 June to 28 August 1997, groups of ten experimentally infected slugs were placed in tundra enclosures in a mesic sedge meadow near Kugluktuk, Nunavut, Canada. First-stage larvae (L1) infecting slugs on or before 17 July developed to third-stage larvae (L3) in 4–6 weeks. Intensity of L3 in slugs peaked at 6–8 weeks post infection (PI) and then progressively declined by 10, 12, and 48–50 weeks PI. Abundance of L3 in …
Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis
Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis
Bulletins
No abstract provided.
Wpa News 65 [66] (2001), World Pheasant Association
Wpa News 65 [66] (2001), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (November 2001), number 65 [66]
Published by the World Pheasant Association
Winter Severity And Wolf Predation On A Formerly Wolf-Free Elk Herd, L. David Mech, Douglas W. Smith, Kerry M. Murphy, Daniel R. Macnulty
Winter Severity And Wolf Predation On A Formerly Wolf-Free Elk Herd, L. David Mech, Douglas W. Smith, Kerry M. Murphy, Daniel R. Macnulty
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We studied wolf (Canis lupus) predation on elk (Cervus elaphus) in Yellowstone National Park from 17 March to 15 April 1997 (severe winter conditions) and from 2 to 31 March 1998 (mild winter conditions) 2-3 years after wolves were reintroduced to the park. Elk composed 91% of 117 kills. Data comparisons for 1997 versus 1998 were: hunting success rate, 26% versus 15%; kill rate, 17.1 kg/wolf/day versus 6.1; percent of kill consumed in first day, 7 versus 86; percent femur marrow fat of adult kills, 27 versus 70; calf:adult ratios of kills, 2:33 versus 17:23; sex …
Genetic Evidence For Two Species Of Elephant In Africa, Alfred L. Roca, Nicholas Georgiadis, Jill Pecon-Slattery, Stephen J. O'Brien
Genetic Evidence For Two Species Of Elephant In Africa, Alfred L. Roca, Nicholas Georgiadis, Jill Pecon-Slattery, Stephen J. O'Brien
Biology Faculty Articles
Elephants from the tropical forests of Africa are morphologically distinct from savannah or bush elephants. Dart-biopsy samples from 195 free-ranging African elephants in 21 populations were examined for DNA sequence variation in four nuclear genes (1732 base pairs). Phylogenetic distinctions between African forest elephant and savannah elephant populations corresponded to 58% of the difference in the same genes between elephant genera Loxodonta (African) and Elephas (Asian). Large genetic distance, multiple genetically fixed nucleotide site differences, morphological and habitat distinctions, and extremely limited hybridization of gene flow between forest and savannah elephants support the recognition and conservation management of two African …
Wpa News 65 (2001), World Pheasant Association
Wpa News 65 (2001), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (May 2001), number 65
Published by the World Pheasant Association
Wpa News 64 (2001), World Pheasant Association
Wpa News 64 (2001), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (February 2001), number 64
Published by the World Pheasant Association
Rare, Threatened And Endangered Plants And Animals Of Oregon (2001), James S. Kagan, Sue Vrilakas, Eleanor P. Gaines, Cliff Alton, Ken Popper, Mark A. Stern, Eric Scheuering, John A. Christy, Mary Finnerty, Jon Hak, Anthony A. Tovar, Michael Murray, Claudine Tobalske, Oregon Natural Heritage Program
Rare, Threatened And Endangered Plants And Animals Of Oregon (2001), James S. Kagan, Sue Vrilakas, Eleanor P. Gaines, Cliff Alton, Ken Popper, Mark A. Stern, Eric Scheuering, John A. Christy, Mary Finnerty, Jon Hak, Anthony A. Tovar, Michael Murray, Claudine Tobalske, Oregon Natural Heritage Program
Institute for Natural Resources Publications
Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within the next 100 years. The major cause of this phenomenon is large-scale destruction of native habitats, which has increased since European settlement began in the mid 1800's - in Oregon and throughout the New World.
Once lost, a species can never be recovered, and there is no way of knowing how useful it may have been. We do know that human beings and many of their industries depend …
Tiger Restoration In Asia: Ecological Theory Vs. Sociological Reality, Ronald Tilson, Philip J. Nyhus, Neil Franklin
Tiger Restoration In Asia: Ecological Theory Vs. Sociological Reality, Ronald Tilson, Philip J. Nyhus, Neil Franklin
Faculty Scholarship
No abstract provided.
Grouse News 21-30 (2001-2005), World Pheasant Association International, Birdlife International, Species Survival Commission, Grouse Specialist Group
Grouse News 21-30 (2001-2005), World Pheasant Association International, Birdlife International, Species Survival Commission, Grouse Specialist Group
Galliformes Specialist Group and Affiliated Societies: Newsletters
Issue 21 (2001)
Chairman's column, Ilse Storch
Present distribution and numbers of black grouse in the Czech Republc, I. Malkova Petra, Stastny Karel, and Bejcek Vladimir
Capercaillie in the Czech Republic, Malkova Petra, Stastny Karel, and Bejcek Vladimir
Avalanche prevention causes disturbance of grouse around French ski stations, Emmanuel Menoni
New fencing material tested in France, Emmanuel Menoni
The fate of the black grouse, Ing. Roelof Heringa
Co Co Co Cocks, Michele Loneux
Update of number of capercaillie in the Vosges Mountains, Jean Poirot and Francoise Preiss
Use of Sandsage habitat by lesser prairie-chickens in Southwestern Kansas, Cristian Hagen. James …
Natural Fertility In Whooping Cranes And Mississippi Sandhill Cranes At Patuxent Wildlife Research Center, Jane M. Nicolich, George F. Gee, David H. Ellis, Scott G. Hereford
Natural Fertility In Whooping Cranes And Mississippi Sandhill Cranes At Patuxent Wildlife Research Center, Jane M. Nicolich, George F. Gee, David H. Ellis, Scott G. Hereford
Proceedings of the North American Crane Workshop
The first fertile whooping crane (Grus americana; WC) egg produced through natural breeding at Patuxent Wildlife Research Center (patuxent) was laid in 1991. Prior to that time, all fertile whooping crane eggs were the result of artificial insemination. Since 1991, eight different whooping crane pairs at Patuxent have produced fertile eggs through natural breeding. Mean fertility averages over years for each pair range from 40% to 93%. Fertility rates for each pair also vary greatly between years, from 0% to 100%, but the causes of the variance are unknown. Experiences with natural fertility in Mississippi sandhill cranes (G …
Counting Cranes: How Much Effort Is Enough?, Douglas H. Johnson, Roderick C. Drewien, Douglas S. Benning
Counting Cranes: How Much Effort Is Enough?, Douglas H. Johnson, Roderick C. Drewien, Douglas S. Benning
Proceedings of the North American Crane Workshop
Accurate population estimates of sandhill cranes (Grus canadensis) are important because management decisions, such as establishing hunting regulations, are based on those estimates. Counts often are made during aerial surveys when the cranes are congregated. A complete census may be feasible if the area to be surveyed is small and adequate resources are available. For large areas, resources may be inadequate for a census so partial counts (sample surveys) are made. Because cranes are gregarious, the counts in a sample of units may contain either a disproportionately large, or a disproportionately small, fraction of the total, leading to …
Nocturnal Roost Site Selection And Diurnal Habitat Use By Sandhill Cranes During Spring In Central Nebraska, Craig A. Davis
Nocturnal Roost Site Selection And Diurnal Habitat Use By Sandhill Cranes During Spring In Central Nebraska, Craig A. Davis
Proceedings of the North American Crane Workshop
During spring 1998 and 1999, the Platte River Whooping Crane Maintenance Trust conducted ground and aerial surveys of staging sandhill cranes (Grus canadensis; hereafter, cranes) to detennine roost site selection and habitat-use patterns along a l20-Ian stretch of the Platte River in south-central Nebraska. Cranes peaked at 232,023 during 22-28 March 1998 and 206,074 during 28 Februaty-6 March 1999 in the study area, a portion of the total crane staging area in the Platte River Valley. Diurnal observations showed that 48% of the cranes were in com fields, 34% in lowland grasslands, 13% in alfalfa fields, and 5% …