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- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (40)
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Articles 31 - 60 of 103
Full-Text Articles in Environmental Sciences
Virginia Game Fish Tagging Program Annual Report 2011, Susanna Musick, Lewis Gillingham
Virginia Game Fish Tagging Program Annual Report 2011, Susanna Musick, Lewis Gillingham
Reports
Through 2011, the Virginia Game Fish Tagging Program has maintained a 17-year database of records for tagged and recaptured fish. The program is a co-operative project of the Virginia Saltwater Fishing Tournament (under the Virginia Marine Resources Commission-VMRC) and the Virginia Institute of Marine Science (VIMS) of the College of William and Mary (under the VIMS Marine Advisory Program).
Monitoring Relative Abundance Of American Shad In Virginia Rivers 2011 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee
Monitoring Relative Abundance Of American Shad In Virginia Rivers 2011 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee
Reports
Concern about the decline in landings of American shad (Alosa sapidissima) along the Atlantic coast prompted the development of an interstate fisheries management plan (FMP) under the auspices of the Atlantic States Marine Fisheries Management Program (ASMFC 1999). Legislation enables imposition of federal sanctions on fishing in those states that fail to comply with the FMP. To be in compliance, coastal states are required to implement and maintain fishery-dependent and fishery-independent monitoring programs as specified by the FMP. For Virginia, these requirements include spawning stock assessments, the collection of biological data on the spawning run (e.g., age-structure, sex ratio, and …
Fishermen, Politics, And Participation: An Ethnographic Examination Of Commercial Fisheries Management In St. Croix, U.S. Virgin Islands, Cynthia Grace-Mccaskey
Fishermen, Politics, And Participation: An Ethnographic Examination Of Commercial Fisheries Management In St. Croix, U.S. Virgin Islands, Cynthia Grace-Mccaskey
USF Tampa Graduate Theses and Dissertations
Currently, there is widespread debate regarding the overall status of the world's fisheries, with some researchers projecting their total collapse in only a few decades, and others concluding the situation is not quite as bleak. Additional debates include what strategies should be used to manage fisheries at various scales, and further research is needed to determine which strategies are most appropriate for use in particular situations and locales, as context is critical.
Recently, prominent common pool resources scholars have expressed the need for ethnographic approaches to studying resource management institutions in order to move beyond the current focus of simply …
Nantucket Shellfish Management Plan, Kristin Uiterwyk, Steve Bliven, Dan Leavitt, Jack Wiggin, Urban Harbors Institute, University Of Massachusetts Boston
Nantucket Shellfish Management Plan, Kristin Uiterwyk, Steve Bliven, Dan Leavitt, Jack Wiggin, Urban Harbors Institute, University Of Massachusetts Boston
Office of Community Partnerships Posters
Nantucket’s shellfish resources are an important part of the Island’s history, culture, and economy. Nantucket waters support one of the country’s last wild-caught bay scallop fisheries. Elsewhere along the Atlantic coast, fishing pressure, habitat loss, and disease have severely depleted bay scallop populations. Although Nantucketers continue to make a living harvesting shellfish from the Island’s waters, many do so with concern for the future of the resources and the habitats that support them. Urban Harbors Institute (UHI) provided technical assistance to the community to develop a Shellfish Management Plan (SMP) that addresses issues of water quality, habitat loss, climate change, …
The Foxes Of Salisbury Beach, Deborah A. Venuti
The Foxes Of Salisbury Beach, Deborah A. Venuti
Visual & Performing Arts Faculty Publications
The author describes her encounter with foxes at Salisbury Beach, MA and Massachusetts legislative policy related to Salisbury Beach's preservation.
A Conceptual Model To Facilitate Amphibian Conservation In The Northern Great Plains, David M. Mushet, Ned H. Euliss Jr., Craig A. Stockwell
A Conceptual Model To Facilitate Amphibian Conservation In The Northern Great Plains, David M. Mushet, Ned H. Euliss Jr., Craig A. Stockwell
Great Plains Research: A Journal of Natural and Social Sciences
As pressures on agricultural landscapes to meet worldwide resource needs increase, amphibian populations face numerous threats including habitat destruction, chemical contaminants, disease outbreaks, wetland sedimentation, and synergistic effects of these perturbations. To facilitate conservation planning, we developed a conceptual model depicting elements critical for amphibian conservation in the northern Great Plains. First, we linked upland, wetland, and landscape features to specific ecological attributes. Ecological attributes included adult survival; reproduction and survival to metamorphosis; and successful dispersal and recolonization. Second, we linked ecosystem drivers, ecosystem stressors, and ecological effects of the region to each ecological attribute. Lastly, we summarized information on …
Reproduction And Population Characteristics Of White-Tailed Jackrabbits In South Dakota, Charles Dieter, Dustin Schaible
Reproduction And Population Characteristics Of White-Tailed Jackrabbits In South Dakota, Charles Dieter, Dustin Schaible
Great Plains Research: A Journal of Natural and Social Sciences
We evaluated the reproductive biology of314 white-tailed jackrabbits (Lepus townsendii) in 44 counties throughout South Dakota from June 2004 to September 2005. We classified jackrabbits as juveniles or adults based on the closure of the proximal epiphysis of the humerus using X-ray analysis. We determined annual reproductive activity through fluctuations in measured weights of reproductive organs for both sexes. The 2005 breeding season started in late February and proceeded until mid-July, approximately 142 days, allowing for females to potentially produce 3.3 litters. We found four distinct breeding periods by the overlap of estimated conception and parturition dates. Mean …
Research, Monitoring, Assessment And Development Plan 2011 – 2012, Department Of Fisheries
Research, Monitoring, Assessment And Development Plan 2011 – 2012, Department Of Fisheries
Fisheries occasional publications
No abstract provided.
Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2011), Troy D. Tuckey, Mary C. Fabrizio
Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2011), Troy D. Tuckey, Mary C. Fabrizio
Reports
The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing coastal states’ efforts to collect American eel data through both fishery-dependent and fishery-independent studies. Consequently, member jurisdictions agreed to implement an annual survey for young-of-year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with full implementation …
Licensing And Allocation Under A New Management Plan For The West Coast Rock Lobster Managed Fishery. A Discussion Paper., Department Of Fisheries Western Australia.
Licensing And Allocation Under A New Management Plan For The West Coast Rock Lobster Managed Fishery. A Discussion Paper., Department Of Fisheries Western Australia.
Fisheries management papers
This paper was prepared to set out the proposed direction for licensing, entitlement allocation and related matters under a new management plan for the West Coast Rock Lobster Managed Fishery (the new Management Plan), which is expected to begin operation on 15 January 2013. It is one of two papers being released by the Department of Fisheries (the Department) for comment as part of consultation on the development of this legislation, and is designed to encourage public involvement in the changes to the management arrangements for the West Coast Rock Lobster Managed Fishery (the fishery).
In addition, a related paper …
A Resource-Based Management Approach For Recreational Fishing In Western Australia 2012-2017. State-Wide Management Proposals For Finfish, Crustaceans, Molluscs And Other Invertebrates., Department Of Fisheries Western Australia.
A Resource-Based Management Approach For Recreational Fishing In Western Australia 2012-2017. State-Wide Management Proposals For Finfish, Crustaceans, Molluscs And Other Invertebrates., Department Of Fisheries Western Australia.
Fisheries management papers
This paper outlines a new, simplified framework of bag and possession limits that is based on state-wide management arrangements for various categories of finfish and invertebrate resources. This new approach will help simplify advisory material and make the recreational fishing experience more enjoyable.
Operational And Compliance Elements Of A New Management Plan For The West Coast Rock Lobster Managed Fishery. A Discussion Paper., Department Of Fisheries Western Australia
Operational And Compliance Elements Of A New Management Plan For The West Coast Rock Lobster Managed Fishery. A Discussion Paper., Department Of Fisheries Western Australia
Fisheries management papers
This paper was prepared to set out the proposed direction for compliance and other operational matters under a new management plan for the West Coast Rock Lobster Managed Fishery (the new Management Plan) which is expected to commence operation on 15 January 2013. It is one of two papers being released by the Department of Fisheries (Department) for comment as part of consultation on the development of this legislation, and is designed to encourage public involvement in the changes to the management arrangements for the West Coast Rock Lobster Managed Fishery (the fishery).
Two New Species Of Trigonotylus (Hemiptera: Heteroptera: Miridae: Stenodemini) From Western Canada And Northwestern United States, G G.E. Scudder, Michael D. Schwartz
Two New Species Of Trigonotylus (Hemiptera: Heteroptera: Miridae: Stenodemini) From Western Canada And Northwestern United States, G G.E. Scudder, Michael D. Schwartz
Green Canyon Environmental Research Area, Logan Utah
No abstract provided.
Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 2010-2014 : Progress Report, 1 September 2010 - 31 August 2011, Philip W. Sadler, Matthew W. Smith, John M. Hoenig, Robert E. Harris, Lydia M. Goins
Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 2010-2014 : Progress Report, 1 September 2010 - 31 August 2011, Philip W. Sadler, Matthew W. Smith, John M. Hoenig, Robert E. Harris, Lydia M. Goins
Reports
This report presents the results of striped bass (Morone saxatilis) tagging and monitoring activities in Virginia during the period 1 September 2010 through 31 August 2011. It includes an assessment of the biological characteristics of striped bass taken from the 2011 spring spawning run, estimates of annual survival and fishing mortality based on annual spring tagging, and the results of the study that documents the prevalence of mycobacterial infections of striped bass in Chesapeake Bay. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated management plan for …
Diving Behavior And Identification Of Sex Of Breeding Atlantic Puffins (Fratercula Arctica), And Nest-Site Characteristics Of Alcids On Petit Manan Island, Maine, Sarah M. Spencer
Diving Behavior And Identification Of Sex Of Breeding Atlantic Puffins (Fratercula Arctica), And Nest-Site Characteristics Of Alcids On Petit Manan Island, Maine, Sarah M. Spencer
Masters Theses 1911 - February 2014
During 2008 – 2009, we quantified foraging behavior of adult Atlantic puffins (Fratercula arctica) by deploying time-depth recorders (TDRs) on 18 adults and collected morphological measurements from 40 adults nesting on Petit Manan Island, Maine. Dive data were successfully retrieved from 5 birds foraging for 14 days in 2008, and 8 birds foraging for 18 days in 2009. Pooling across all birds, a total of 8,097 dives were recorded, with peaks in activity during 0400-0800 and 1600-2000, and no diving between 2100 and 0400. Mean (± SD) dives/bird/day was 276.4 (± 84.7), with dives grouped into bouts lasting …
Maine Learns To Love Dairying, Erin Love
Maine Learns To Love Dairying, Erin Love
Historical Ecology Atlas of New England
The transition from subsistence to commercial farming is a defining trend in Maine dairying that continues today. Technological advances that often caused large landscape scale changes were catalysts in the division between small and large farmers. The industry developed in a relatively short time period—the last thirty years of the 19th century—but the characteristic divide between large and small farmers has continued to be exacerbated.
2012 Interior Least Tern And Piping Plover Monitoring, Research, Management, And Outreach Report For The Lower Platte River, Nebraska, Mary Bomberger Brown, Joel G. Jorgensen, Lauren R. Dinan
2012 Interior Least Tern And Piping Plover Monitoring, Research, Management, And Outreach Report For The Lower Platte River, Nebraska, Mary Bomberger Brown, Joel G. Jorgensen, Lauren R. Dinan
School of Natural Resources: Faculty Publications
This document reports on our monitoring, research, management, and outreach activities during the past 12 months (2012). We prepared it to inform our partners, cooperating agencies, funding sources, and other interested parties of our activities and to provide a preliminary summary of our results.
The Lower Platte River and its major tributaries provide important nesting habitat for two state and federally protected bird species, the Interior Least Tern (Sternula antillarum athalassos) and Piping Plover (Charadrius melodus). The Tern and Plover Conservation Partnership (TPCP), based at the University of Nebraska-School of Natural Resources, and the Nongame Bird …
Mid-Contract Management Of Conservation Reserve Program Grasslands Provides Benefits For Ring-Necked Pheasant Nest And Brood Survival, Ty W. Matthews, J. Scott Taylor, Larkin A. Powell
Mid-Contract Management Of Conservation Reserve Program Grasslands Provides Benefits For Ring-Necked Pheasant Nest And Brood Survival, Ty W. Matthews, J. Scott Taylor, Larkin A. Powell
School of Natural Resources: Faculty Publications
Conservation Reserve Program (CRP) fields may provide good habitat for nesting and brood-rearing ring-necked pheasants (Phasianus colchicus) during early stages of succession. But, the success of hens in early successional CRP, relative to late successional CRP and other grassland habitats, has yet to be evaluated. The reproductive period is especially critical for populations of pheasants, and CRP’s benefits to hens and chicks may decrease as fields age because of loss of vegetative diversity, decrease in vegetation density, and accumulation of residual litter. During 2005– 2006, we evaluated spatial and temporal variation in nest and brood survival for radio-marked hen pheasants …
Rural Inhabitant Perceptions Of Sandhill Cranes In Wintering Areas Of Northern Mexico, Ingrid Barcelo, Juan Carlos Guzmán-Aranda, Felipe Chávez-Ramírez, Larkin A. Powell
Rural Inhabitant Perceptions Of Sandhill Cranes In Wintering Areas Of Northern Mexico, Ingrid Barcelo, Juan Carlos Guzmán-Aranda, Felipe Chávez-Ramírez, Larkin A. Powell
School of Natural Resources: Faculty Publications
Trends in the mid-continent population of sandhill cranes (Grus canadensis) indicate that the species is increasing. A large proportion of this population winters in northern Mexico where possible conflicts between local inhabitants and cranes can occur. We conducted interviews of 40 rural inhabitants living near wetlands used by cranes in three Mexican states. All interviewees had knowledge of cranes and were capable of describing them. The arrival of cranes affected 43% of interviewees. The negative effects were mainly destroyed crops with a subsequent diminished production. Seventy percent of those affected implemented scare tactics to deter the birds, while others (15%) …
Buchrezension – Book Review: Jan Bemmann (Herausgeber) (2012): Steppenkrieger. Reiternomaden Des 7.–14. Jahrhunderts Aus Der Mongolei, Primus Verlag Darmstadt, Format Din A4, 416 Seiten, Zahlreiche Farbfotos Und Zeichnungen, Michael Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Book review of Jan Bemmann (Herausgeber) (2012): Steppenkrieger. Reiternomaden des 7.–14. Jahrhunderts aus der Mongolei. Primus Verlag Darmstadt, Format DIN A4, 416 Seiten, zahlreiche Farbfotos und Zeichnungen, Preis 39,90 Euro. ISBN: 978-3-86312-011-5.
Erforschung Biologischer Ressourcen Der Mongolei, Band 12 = Exploration Into The Biological Resources Of Mongolia, Volume 12: Front Matter And Table Of Contents, Annegret Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The title page, front matter, and table of contents for volume 12 of the Erforschung journal (i.e. the Black journal) of the Martin-Luther-Universität Halle Wittenberg, Halle (Saale).
Morphology And Variation Of The Asiatic Wild Ass (Equus Hemionus Hemionus), Kati Schöpke, Annegret Stubbe, Michael Stubbe, Nyamsuren Batsaikhan, Renate Schafberg
Morphology And Variation Of The Asiatic Wild Ass (Equus Hemionus Hemionus), Kati Schöpke, Annegret Stubbe, Michael Stubbe, Nyamsuren Batsaikhan, Renate Schafberg
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
A collection of recent skeletal remains from the Asiatic wild ass (Equus hemionus hemionus PALLAS) was prepared and stored in the Museum of Domesticated Animals “JULIUS KÜHN” in Halle, Germany.
The collection is based on carcass remains sampled between 2001 and 2006 under the leadership of Michael Stubbe during joint Mongolian-German Biological Expeditions
Skeletal remains of 43 individual specimens were studied (18 mares, 15 stallions, and 10 juvenile asses). The determination of sex and age was initially based on carcass information from observations made in situ in the field. Subsequently, skull traits, including dentition and development of canine teeth …
Biodiversity And Evolutionary Development Of Oligocene-Pliocene Lagomorphs (Lagomorpha, Mammalia) Of Mongolia, M. A. Erbajeva
Biodiversity And Evolutionary Development Of Oligocene-Pliocene Lagomorphs (Lagomorpha, Mammalia) Of Mongolia, M. A. Erbajeva
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Lagomorphs (pikas and hares) are an ancient group of small mammals originated in Asia in the Paleocene-Eocene. The earliest evidence of their presence in Mongolia is dated to the Early Oligocene. The taxa flourished during the Late Oligocene, Miocene and Pliocene; at the Late Pliocene they were reduced both in their diversity and in abundance. No data on lagomorph are known from the Pleistocene and Holocene, though there are 7 taxa of lagomorphs present in the modern fauna. Altogether, more than 50 lagomorph species, extinct at present, are known to have existed in Mongolia since the Oligocene through the Late …
50 Years Mongolian-German Biological Expeditions And Their Future = Fifty Years Mongolian-German Biological Expeditions And Their Future, Michael Stubbe, Ravčigijn Samjaa, Annegret Stubbe
50 Years Mongolian-German Biological Expeditions And Their Future = Fifty Years Mongolian-German Biological Expeditions And Their Future, Michael Stubbe, Ravčigijn Samjaa, Annegret Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
First two paragraphs:
In 2012 we celebrate the 50th anniversary of the Mongolian-German Biological Expeditions. The roots can be found in the old German-Russian scientific relationships in the history of the University Halle-Wittenberg in connection with August Hermann Francke (1663–1727) and his Foundations (founded in 1698). It’s a long tradition, dating back to the 18th century when early researchers as Georg Wilhelm Steller (1709 –1746) or Peter Simon Pallas (1741–1811) reached the northern border of Mongolia. Other sources of close connections between Halle and Russia are given by persons as the physician Friedrich Hoffmann (1660–1742), the mathematician Christian Wolff (1679-1754) …
Home Range Characteristics Of Corsac And Red Foxes In Mongolia, Tserendorjiin Munkhzul, J. D. Murdoch, R. P. Reading
Home Range Characteristics Of Corsac And Red Foxes In Mongolia, Tserendorjiin Munkhzul, J. D. Murdoch, R. P. Reading
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Red (Vulpes vulpes) and corsac foxes (V. corsac) live sympatrically throughout most of Mongolia, but few details of their home range characteristics exist. We captured and radio-tagged 13 red fox (♂ = 5, ♀ = 8) and 15 corsac foxes (♂ = 8, ♀ = 7) between 2004 and 2008. We tracked their movements to estimate home range sizes and examined the effects of four factors on home range size, including sex, age, season, and year. We determined mean home range size for 12 red and 10 corsac foxes that had sufficient data using fixed kernel …
Ochotona Daurica Pallas, 1776: Modern And Past Distribution Area In Mongolia And The Transbaikal Region, M. A. Erbjeva, N. V. Alexeeva, T. V. Kisloschaeva
Ochotona Daurica Pallas, 1776: Modern And Past Distribution Area In Mongolia And The Transbaikal Region, M. A. Erbjeva, N. V. Alexeeva, T. V. Kisloschaeva
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Ochotona daurica Pallas, 1776 is one of the ancient species among modern taxa having an origination in Transbaikalia possible at the end of Pleistocene. Review on the Late Pleistocene- Holocene-Recent area of distribution of this species is given on the base of new evidences and detail analysis of the previous data.
Long-Term Research On Biodiversity In West Khentey, Northern Mongolia, Michael Mühlenberg
Long-Term Research On Biodiversity In West Khentey, Northern Mongolia, Michael Mühlenberg
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Biodiversity is studied at ecosystem, community, and species level around Khonin Nuga, where the University Goettingen supports a research station since 15 years (established 1997 in cooperation with the National University of Mongolia). In that period 39 scientists have been involved and 67 students graduated with theses (7 PhD) about field work at that station. Inventories started at 1998 for several taxa and are now compiled in a book, which will be printed 2012 in Ulaanbaatar. It covers fungi, lichens, plants, several insect groups, spiders, crustaceans, and all vertebrate classes. For all taxa adequate experts proved the species lists. Because …
First Stable Isotope Analysis Of Asiatic Wild Ass Tail Hair From The Mongolian Gobi, Micha Horacek, Petra Kaczensky, Merina Burnik Sturm
First Stable Isotope Analysis Of Asiatic Wild Ass Tail Hair From The Mongolian Gobi, Micha Horacek, Petra Kaczensky, Merina Burnik Sturm
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Stable isotope analysis has become a powerful tool to study feeding ecology, water use or movement pattern in contemporary, historic and ancient species. Certain hair and teeth grow continuously, and when sampled longitudinally can provide temporally explicit information on dietary regime and movement pattern. In an initial trial, we analysed a tail sample of an Asiatic wild ass (Equus hemionus) from the Mongolian Gobi. We found seasonal variations in H, C, and N isotope patterns, likely being the result of temporal variations in available feeds, water supply and possibly physiological status. Thus stable isotope analysis shows promise to …
Pleistocene Faunal Fossils From Bayangol I Site, Bulgan Aimag, Mongolia, Takao Sato, Fedora Khenzykhenova, Toshiaki Tsurumaru, Masao Ambiru, Jun Takakura, Yoshiaki Otsuka, Shigeo Iida, Natalya Schepina, Batmunkh Tsogtbaatar
Pleistocene Faunal Fossils From Bayangol I Site, Bulgan Aimag, Mongolia, Takao Sato, Fedora Khenzykhenova, Toshiaki Tsurumaru, Masao Ambiru, Jun Takakura, Yoshiaki Otsuka, Shigeo Iida, Natalya Schepina, Batmunkh Tsogtbaatar
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
During excavation of the Bayan-gol I Palaeolithic site in the Bulgan Aimak, Mongolia, some faunistic remains were recovered attributable to Aves (two species), Anura (two species), and mammals (three species). The fossil remains bear a considerable similarity to the corresponding species of today in Mongolia.
Long-Term Ecology Of Asiatic Wild Ass (Equus H. Hemionus Pallas) In Central Asia, Annegret Stubbe, Michael Stubbe, Nyamsuren Batsaikhan, Ravčigijn Samjaa
Long-Term Ecology Of Asiatic Wild Ass (Equus H. Hemionus Pallas) In Central Asia, Annegret Stubbe, Michael Stubbe, Nyamsuren Batsaikhan, Ravčigijn Samjaa
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The main population of the nominate form Equus hemionus hemionus Pallas, 1775 occurs in the south-east Gobi desert of Mongolia. From 2003 to 2012 we studied the reproductive ecology and mortality of dschiggetajs or khulans (English also ‘hulan’). During these years, the rate of reproduction was variable, ranging from 6.4% to 23.0% depending on climate, feeding conditions, and fitness of the mares. Our research shows that there appears to be a relationship between minimum temperatures in June (main foaling time) and rate of successful reproduction. The primary cause of decline in the numerical density of the population of E. hemionus …