First Record Of Five Terrestrial Snails In The State Of Qatar,
2010
TÜBİTAK
First Record Of Five Terrestrial Snails In The State Of Qatar, Jassim A. Al-Khayat
Turkish Journal of Zoology
The present contribution outlines a first record of 5 encountered terrestrial gastropods new to Qatar. The preliminary account of these species and their zoogeographical origins are discussed. The species belong to 4 families: Subulinidae, with 2 genera, Zootecus and Allopeas; Polygyridae, with 1 genus, Polygra; Hygromiidae, with 1 genus, Monacha; and Helicidae, with 1 genus, Eobania.
Nais Stolci Hrabĕ, 1981: A New Oligochaete (Annelida: Clitellata: Naididae) Species For Turkey,
2010
TÜBİTAK
Nais Stolci Hrabĕ, 1981: A New Oligochaete (Annelida: Clitellata: Naididae) Species For Turkey, Seray Yildiz, Seyhan Ahiska
Turkish Journal of Zoology
As a result of sampling made in the Dicle (Tigris) River, southeastern Anatolia, Turkey, between March 2008 and April 2009, Nais stolci is reported as a new species for the Turkish fauna.
First Record And Range Extension Of Field's Horned Viper, Pseudocerastes Fieldi Schmidt, 1930 (Squamata: Viperidae), From Fars Province, Southern Iran, Ali Gholamifard, Hamid Reza Esmaeili
Turkish Journal of Zoology
Based on extensive research, the first record of Field's horned viper, Pseudocerastes fieldi Schmidt, 1930 from Fars province, southern Iran, is presented.
Long‐Term Production And Profitability From Grazing Cattle In The Northern Mixed Grassprairie,
2010
South Dakota State University
Long‐Term Production And Profitability From Grazing Cattle In The Northern Mixed Grassprairie, B.H. Dunn, A.J. Smart, R.N. Gates, P.S. Johnson, M.K. Beutler, M.A. Diersen, L.L. Janssen
South Dakota Beef Report, 2010
Conventional wisdom among rangeland professionals has been that for long‐term sustainability of grazing livestock operations, rangeland should be kept in high good to low excellent range condition. Our objective was to analyze production parameters, economic costs, returns, and profit using data generated over a thirty‐four year period (1969‐2002) from grazing a Clayey range site in the mixed‐grass prairie of western South Dakota with variable stocking rates required to maintain pastures in low‐fair, good, and excellent range condition classes. Cattle weights were measured at turnout and at the end of the grazing season. Gross income per acre was calculated by multiplying …
Persistence Of Various Alfalfa Populations In South Dakota Rangeland,
2010
South Dakota State University
Persistence Of Various Alfalfa Populations In South Dakota Rangeland, C.G. Misar, L. Xu, R.N. Gates, A.A. Boe, P.S. Johnson
South Dakota Beef Report, 2010
Inclusion of alfalfa (Medicago sativa L.) in grasslands has long been valued to increase forage production and quality. Persistence of alfalfa in semiarid rangeland has generally been poor when non‐adapted and/or conventional hay‐type cultivars are utilized, however. Demand exists for alfalfa cultivars that establish readily and persist, particularly under grazing, in semiarid rangelands. A wild population of predominantly yellow‐flowered alfalfa (Medicago sativa subsp. falcata) was found growing and reproducing naturally in the Grand River National Grassland in northwestern South Dakota. This predominantly falcata alfalfa therefore demonstrates persistence in this semiarid environment. We initiated a study in May 2006 at the …
Evaluation Of Fish And Macroinvertebrate Indices Of Biotic Integrity In The Bioassessment Of The Illinois River Basin,
2010
University of Arkansas, Fayetteville
Evaluation Of Fish And Macroinvertebrate Indices Of Biotic Integrity In The Bioassessment Of The Illinois River Basin, Rebekah Hotz
Inquiry: The University of Arkansas Undergraduate Research Journal
Evaluating performances of the fish and invertebrate Indices of Biotic Integrity (IBIs) for a region is important to maintain rigorous assessment of the environmental quality of streams, especially with increasing urbanization. Timing of the assessment is considered important, with the critical season (low flow, high temperature) preferred, but the primary season (spring– summer) may be as efficient. I assisted with the collection and analysis of fish and macroinvertebrates using methods developed by the United States Environmental Protection Agency’s (USEPA) Rapid Bioassessment Protocols (RBPs) and the Arkansas Department of Environmental Quality (ADEQ), along with obtaining habitat and chemical assessments during primary …
Threadfin Shad Impacts Phytoplankton And Zooplankton Community Structures In Channel Catfish Ponds,
2010
USDA ARS
Threadfin Shad Impacts Phytoplankton And Zooplankton Community Structures In Channel Catfish Ponds, Bartholomew W. Green, Peter Perschbacher, Gerald Ludwig, Sara E. Duke
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Plankton community structure and chlorophyll a concentration were compared in 12 0.1-ha earthen ponds co-stocked with channel catfish (Ictalurus punctatus Rafinesque, 1818) in multiple-batch culture (initial biomass = 5,458 kg ha-1) and a planktivore, threadfin shad (Dorosoma petenense Güther, 1867; initial biomass = 449 kg ha-1), during the April-November growing season. We used a completely randomized design in 2 x 2 factorial arrangement to test planktivore level (presence or absence of threadfin shad) and channel catfish feeding frequency (daily or every 3rd d). Channel catfish were fed a 32% protein feed to apparent …
Combining A Dispersal Model With Network Theory To Assess Habitat Connectivity,
2010
University of Richmond
Combining A Dispersal Model With Network Theory To Assess Habitat Connectivity, Todd R. Lookingbill, Robert H. Gardner, Joseph R. Ferrari, Cherry E. Keller
Geography and the Environment Faculty Publications
Assessing the potential for threatened species to persist and spread within fragmented landscapes requires the identification of core areas that can sustain resident populations and dispersal corridors that can link these core areas with isolated patches of remnant habitat. We developed a set of GIS tools, simulation methods, and network analysis procedures to assess potential landscape connectivity for the Delmarva fox squirrel (DFS; Sciurus niger cinereus), an endangered species inhabiting forested areas on the Delmarva Peninsula, USA. Information on the DFS’s life history and dispersal characteristics, together with data on the composition and configuration of land cover on the peninsula, …
Thirty Years Of Mortality Assessment In Whooping Crane Reintroductions: Patterns And Implications,
2010
International Crane Foundation
Thirty Years Of Mortality Assessment In Whooping Crane Reintroductions: Patterns And Implications, Barry K. Hartup, Marilyn G. Spalding, Nancy J. Thomas, Gretchen A. Cole, Young Jun Kim
Proceedings of the North American Crane Workshop
We reviewed postmortem data to identify primary causes of mortality in reintroduced whooping cranes (Grus americana) and assess their potential for mitigation in future reintroduction efforts. In total, 240 cases from 3 populations were reviewed for causes of death, including the Rocky Mountain migratory population (n = 24, release dates 1975-1989), the Florida resident population (n = 186, 1993-2005), and the Wisconsin migratory population (n = 30, 2001-ongoing). Traumatic injury was the leading cause of mortality among the reintroduced whooping cranes, most commonly from predation (n = 120 or 50%, range 8-58% per project) or collision with fixed …
Morbidity And Mortality Of Captive Whooping Cranes At The International Crane Foundation 1976–2008,
2010
International Crane Foundation
Morbidity And Mortality Of Captive Whooping Cranes At The International Crane Foundation 1976–2008, Barry K. Hartup, Jennifer N. Niemuth, Bridget Fitzpatrick, Maureen Fox, Cristin Kelley
Proceedings of the North American Crane Workshop
Tracking the incidence of morbidity and mortality in captive animal collections helps inform husbandry and preventive medicine programs aimed at improving population health and viability. Carpenter and Derrickson (1982) and Olsen et al. (1997) published summary reports of captive whooping crane (Grus americana) mortality that served to identify key problem areas for the primary breeding flock and potential reintroduction programs involving this endangered species. We expanded on this approach and conducted an initial evaluation of morbidity and mortality factors for whooping cranes at the International Crane Foundation (ICF). The purpose of our study was to identify overrepresented factors …
Endoparasites Of Greater Sandhill Cranes In South-Central Wisconsin,
2010
International Crane Foundation
Endoparasites Of Greater Sandhill Cranes In South-Central Wisconsin, Somer Hartman, Betsy Reichenberg, Jane Fanke, Anne E. Lacy, Barry K. Hartup
Proceedings of the North American Crane Workshop
Windingstad and Trainer (1977) used both fecal sampling and postmortem examinations to document the occurrence of parasites in greater sandhill cranes (Grus canadensis tabida) from Wisconsin in the fall. We conducted repeated fecal sampling of a well-known population to expand on results of their study. Our objective was to determine whether seasonal differences exist in the prevalence of endoparasites of Wisconsin sandhill cranes. We collected 7 to 10 fecal samples approximately every other week from a consistent roost site on the Wisconsin River (43°34'52.99''N, 89°36'38.42''W) near Briggsville, Wisconsin, from 29 May through 25 September 2008. The sample size …
Impacts Of Global And Regional Climate On Whooping Crane Demography: Trends And Extreme Events,
2010
Platte River Whooping Crane Maintenance Trust
Impacts Of Global And Regional Climate On Whooping Crane Demography: Trends And Extreme Events, Karine Gil, William Grant, R. Douglas Slack, Enrique Weir
Proceedings of the North American Crane Workshop
We analyzed long-term demographic and environmental data to understand the role of large scale climatic factors (the Pacific Decadal Oscillations [PDO]) and environmental factors in 3 regions of North America on natality and mortality of the remnant migratory whooping crane (Grus americana) population. This is an endangered species that spends winters at Aransas National Wildlife Refuge (ANWR) in Texas, breeds at Wood Buffalo National Park (WBNP) in Canada and “…uses Nebraska as a primary stopover”. Long term data (27 years) of demography and environmental factors (PDO index, temperature and precipitation at WBNP, Nebraska and ANWR, pond water depth …
Longevity Records Of Rocky Mountain Greater Sandhill Cranes Banded During 1969–1987 In Idaho, Montana, Utah, And Wyoming,
2010
Hornocker Wildlife Research Institute
Longevity Records Of Rocky Mountain Greater Sandhill Cranes Banded During 1969–1987 In Idaho, Montana, Utah, And Wyoming, Roderick C. Drewien, Wendy M. Brown, Kent R. Clegg
Proceedings of the North American Crane Workshop
Cranes species throughout the world are renowned for their longevity; however, most records are based on individuals in captivity. We compiled longevity records for wild Rocky Mountain greater sandhill cranes (Grus canadensis tabida) banded in Idaho, Montana, Utah, and Wyoming during 1969-1987. Our analysis was based on over 180 band recoveries and over 1,700 visual observations of known-age individually marked birds from 1969 to 2008. We present only those birds of age >20 years for this summary. Our results yielded 56 birds known to be >20 yrs of age when killed or last observed. Of 7 band recoveries, …
Demography Of Whooping Cranes In The Eastern Migratory Population,
2010
U.S. Geological Survey, Patuxent Wildlife Research Center
Demography Of Whooping Cranes In The Eastern Migratory Population, Sarah J. Converse, Richard P. Urbanek
Proceedings of the North American Crane Workshop
The ultimate success of the whooping crane (Grus americana) reintroduction to eastern North America rests on adequate demographic performance of the population. We are undertaking a population viability analysis (PVA) of the eastern migratory population in order to evaluate progress toward the fundamental population objective, to better understand the critical demographic thresholds that must be met to fulfill this objective, and, most importantly, to support management decision-making. The initial phase in the PVA development process involves estimation of demographic parameters to be used in later population modeling phases. Multi-state models provide an appropriate analytic framework for estimation, wherein …
Current Status Of Lesser Sandhill Cranes In Yakutia,
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 …
Summary Of Sandhill Crane Sport Harvest In Canada 1975–2006,
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. …
Demoiselle Cranes On Agricultural Lands In The Ukraine,
2010
Azov-Black Sea Ornithological Station
Demoiselle Cranes On Agricultural Lands In The Ukraine, Yuriy Andryushchenko
Proceedings of the North American Crane Workshop
In Eurasia, the western range of the demoiselle crane (Anthropoides virgo) includes the southeast of Ukraine. Here the species nests, forms flying and pre-migrating concentrations, and participates in migration. The number of demoiselle cranes in April-June is about 600-700 individuals (200-250 nesting pairs), and toward the end of the year the population can reach 900-1000 individuals. Of cranes observed during 2000-2008 in the Crimea, 42.3% of pairs (n = 151) nested on agricultural fields: 21.5% on virgin land, 16.1% on cropland, and 3.4% on fallow lands. Principal characteristics of the demoiselle crane nesting locations were wavy relief, scarce herbage, …
Possible Competition Between Waterfowl And Sandhill Cranes At Hiwassee Wildlife Refuge, Tennessee,
2010
University of Tennessee at Chattanooga
Possible Competition Between Waterfowl And Sandhill Cranes At Hiwassee Wildlife Refuge, Tennessee, David A. Aborn
Proceedings of the North American Crane Workshop
As a result of crop planting for waterfowl, numbers of eastern greater sandhill cranes (Grus canadensis tabida) staging and overwintering at the Hiwassee Wildlife Refuge in eastern Tennessee have sharply increased over the last 30-40 years. Peak numbers of wintering cranes have reached 14,000, and this large increase in crane numbers raises the possibility that they may be competing with waterfowl for food and space. I examined broad-scale changes in waterfowl numbers using Christmas Bird Count data, as well as small-scale changes using observations of waterfowl numbers and locations in relation to cranes on individual days. Preliminary results …
Behavior And Habitat Use Of Greater Sandhill Cranes Wintering In East Tennessee,
2010
University of Tennessee at Chattanooga
Behavior And Habitat Use Of Greater Sandhill Cranes Wintering In East Tennessee, David A. Aborn
Proceedings of the North American Crane Workshop
An increase of eastern greater sandhill cranes (Grus canadensis tabida) stopping over and wintering at the Hiwassee Wildlife Refuge in east Tennessee has led to overcrowding at the refuge, resulting in crane use of private property. Proper management is needed to prevent the cranes from becoming a nuisance, increase the suitability of the refuge for waterfowl, and reduce the likelihood of a disease outbreak. Observations of cranes revealed that cranes spent 83% of their time foraging, alert, or preening. Sandhill cranes foraged primarily in agricultural and grassy fields, whereas mudflats and shallow water were used for preening and …
First Breeding Records And Historical Status Of Sandhill Cranes In New England,
2010
Massachusetts Division of Fisheries and Wildlife
First Breeding Records And Historical Status Of Sandhill Cranes In New England, Scott M. Melvin
Proceedings of the North American Crane Workshop
Sandhill cranes (Grus canadensis) nested at 4 sites in south-central Maine between 2000 and 2008 and at single sites in western Massachusetts and west-central Vermont in 2007 and 2008, continuing their eastward range expansion. Of 13 nests observed, 5 were in a lacustrine marsh, 2 were in a riverine marsh, and 2 were in beaver-impounded palustrine marshes, all dominated by cattail (Typha spp.); 2 were in lacustrine fen habitat dominated by sedges (Carex spp.), sphagnum, and leatherleaf (Chamaedaphne calyculata); 1 was in a lacustrine fen dominated by slender sedge (Carex lasiocarpa …
