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Articles 1 - 30 of 48
Full-Text Articles in Other Animal Sciences
Response Of Stress Levels In Domestic Canines To Calming Pheromone, Kathleen Barrett
Response Of Stress Levels In Domestic Canines To Calming Pheromone, Kathleen Barrett
Honors Capstones
Capstone submitted as a graduation requirement for the BSU Honors Program.
Chimpanzee Theory Of Mind: Looking In All The Wrong Places?, Kristin Andrews
Chimpanzee Theory Of Mind: Looking In All The Wrong Places?, Kristin Andrews
Sentience Collection
I respond to an argument presented by Daniel Povinelli and Jennifer Vonk that the current generation of experiments on chimpanzee theory of mind cannot decide whether chimpanzees have the ability to reason about mental states. I argue that Povinelli and Vonk’s proposed experiment is subject to their own criticisms and that there should be a more radical shift away from experiments that ask subjects to predict behavior. Further, I argue that Povinelli and Vonk’s theoretical commitments should lead them to accept this new approach, and that experiments which offer subjects the opportunity to look for explanations for anomalous behavior should …
Cortical Complexity In Cetacean Brains, Patrick R. Hof, Rebecca Chanis, Lori Marino
Cortical Complexity In Cetacean Brains, Patrick R. Hof, Rebecca Chanis, Lori Marino
Veterinary Science and Medicine Collection
Cetaceans (dolphins, whales, and porpoises) have a long, dramatically divergent evolutionary history compared with terrestrial mammals. Throughout their 55–60 million years of evolution, cetaceans acquired a compelling set of characteristics that include echolocation ability (in odontocetes), complex auditory and communicative capacities, and complex social organization. Moreover, although cetaceans have not shared a common ancestor with primates for over 90 million years, they possess a set of cognitive attributes that are strikingly convergent with those of many primates, including great apes and humans. In contrast, cetaceans have evolved a highly unusual combination of neurobiological features different from that of primates. As …
In Situ Examination Of Boldness–Shyness Traits In The Tropical Poeciliid, Brachyraphis Episcopi, Culum Brown, Felicity Jones, Victoria Braithwaite
In Situ Examination Of Boldness–Shyness Traits In The Tropical Poeciliid, Brachyraphis Episcopi, Culum Brown, Felicity Jones, Victoria Braithwaite
Sentience Collection
Explaining consistent variation in the behaviour of individuals in terms of personality differences is one of the cornerstones of understanding human behaviour but is seldom discussed in behavioural ecology for fear of invoking anthropomorphism. Recently, however, interest has begun to focus on identifying personality traits in animals and examining their possible evolutionary consequences. One major axis used to define personality traits is the shyness–boldness continuum. We examined boldness in an in situ experiment using fish from eight populations of the poeciliid Brachyraphis episcopi (also referred to as Brachyrhaphis episcopi). Fish from high- and low-predation regions within four streams that run …
Ua66/5 Newsletter, Wku Agriculture
Ua66/5 Newsletter, Wku Agriculture
WKU Administration Documents
Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.
The Use Of Transcriptomics To Address Questions In Behaviour: Production Of A Suppression Subtractive Hybridisation Library From Dominance Hierarchies Of Rainbow Trout, Lynne U. Sneddon, Javier Margareto, Andrew R. Cossins
The Use Of Transcriptomics To Address Questions In Behaviour: Production Of A Suppression Subtractive Hybridisation Library From Dominance Hierarchies Of Rainbow Trout, Lynne U. Sneddon, Javier Margareto, Andrew R. Cossins
Ethology Collection
Microarrays, or gene chips, are transforming the way that gene expression is measured by allowing us to determine the expression of thousands of genes from a sample. This gives immense power to examine gene expression on a global scale within individual animals and between animals. The scope for analysing complex animal functions at the molecular level is within our grasp. Relatively few studies have examined complex behaviours and correlated them with gene expression in the central nervous system. Here, we review the use of microarray technology in the dissection of behaviour and focus specifically on dominance status. A cDNA library …
Differential Stress Responses In Fish From Areas Of High- And Low-Predation Pressure, Culum Brown, Carolyn Gardner, Victoria Braithwaite
Differential Stress Responses In Fish From Areas Of High- And Low-Predation Pressure, Culum Brown, Carolyn Gardner, Victoria Braithwaite
Aquaculture Collection
We subjected fish from regions of high and low levels of predation pressure in four independent streams to a mild stressor and recorded their opercular beat rates. Fish from low-predation areas showed higher maximum, minimum and mean opercular beat frequencies than fish from high-predation regions. The change in opercular beat frequency (scope) was also significantly greater in fish from low- than in fish from high-predation regions. Under normal activity levels, however, low predation fish showed a reduced opercular beat frequency, which may be indicative of reduced activity levels or metabolic rate. Opercular beat frequency was negatively correlated with standard length …
Number Comprehension By A Grey Parrot (Psittacus Erithacus), Including A Zero-Like Concept, Irene M. Pepperberg, Jesse D. Gordon
Number Comprehension By A Grey Parrot (Psittacus Erithacus), Including A Zero-Like Concept, Irene M. Pepperberg, Jesse D. Gordon
Sentience Collection
A Grey parrot (Psittacus erithacus) that was able to quantify 6 item sets (including subsets of heterogeneous groups, e.g., blue blocks within groupings of blue and green blocks and balls) using English labels (I. M. Pepperberg, 1994a) was tested on comprehension of these labels, which is crucial for numerical competence (K. C. Fuson, 1988). He was, without training, asked “What color/object [number]?” for collections of various simultaneously presented quantities (e.g., subsets of 4, 5, and 6 blocks of 3 different colors; subsets of 2, 4, and 6 keys, corks, and sticks). Accuracy was greater than 80% and was unaffected by …
Big Brains Do Matter In New Environments, Lori Marino
Big Brains Do Matter In New Environments, Lori Marino
Evolutionary Biology Collection
No abstract provided.
Effects Of Predation Pressure On The Cognitive Ability Of The Poeciliid Brachyraphis Episcopi, Culum Brown, Victoria A. Braithwaite
Effects Of Predation Pressure On The Cognitive Ability Of The Poeciliid Brachyraphis Episcopi, Culum Brown, Victoria A. Braithwaite
Sentience Collection
Variable levels of predation pressure are known to have significant impacts on the evolutionary ecology of different populations and can affect life-history traits, behavior, and morphology. To date, no studies have directly investigated the impact of predation pressure on cognitive ability. Here we use a system of replicate rivers, each with sites of high- and low-predation pressure, to investigate how this ecological variable affects learning ability in a tropical poeciliid, Brachyraphis episcopi. We used a spatial task to assess the cognitive ability of eight populations from four independent streams (four high- and four low- predation populations). The fish were required …
Impact Of The Agricultural Sector On The Arkansas Economy In 2001, Jennie Popp, Gina Vickery, H. L. Goodwin Jr., Wayne Miller
Impact Of The Agricultural Sector On The Arkansas Economy In 2001, Jennie Popp, Gina Vickery, H. L. Goodwin Jr., Wayne Miller
AAES Research Reports and Research Bulletins
Agriculture has historically been one of Arkansas’ primary economic sectors. Agriculture is defined as the sum of agricultural production and processing activities unless otherwise specified. Agriculture contributes to the economy through direct agricultural production and value-added processing which generates economic activity in other parts of the economy.
Home Range And Behavior Of The Timber Rattlesnake (Crotalus Horridus), Jennifer P. Adams
Home Range And Behavior Of The Timber Rattlesnake (Crotalus Horridus), Jennifer P. Adams
Theses, Dissertations and Capstones
Seventeen timber rattlesnakes were surgically implanted with radio transmitters and subsequently radio-tracked to determine the home range and behavior, as well as cause-specific mortality, of timber rattlesnakes on production forests in Randolph County, West Virginia. Mean home range sizes were 94.3 ha, males; 31.2 ha, nongravid females; 8.5 ha, gravid females; and 44.7 ha, among sex classes. Among sex classes, the mean daily movement rate was 20.2 mper day; the mean maximum known distances from den sites was 1110.2 m; the mean distance from den sites was 514.2 m; and the mean total distance moved was 2852.9 m. Mean active …
Perennial Grasses - Are They For Me? Workshop Manual For Participants, Department Of Agriculture And Food, Wa, Grains Research And Development Corporation
Perennial Grasses - Are They For Me? Workshop Manual For Participants, Department Of Agriculture And Food, Wa, Grains Research And Development Corporation
Agriculture reports
This workshop is part of a series of workshops looking at dryland salinity and options to manage it. These ‘Million hectares’ workshops have the common themes of environmental improvement. They provide information to help participants identify the risks within the catchment and at a farm level, assess both the likelihood of the risk occurring and consequences if the risk is not managed and determine the best course of action for individuals. This perennial grass workshop builds on information and understanding developed from other Million hectares workshops. Participants will determine their course of action based on their specific circumstances and goals. …
Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa
Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This paper presents further results on the food ecology of the eagle owl in western Mongolia for the years 1984 to 1992. Additional to the already known sites we investigated two new resting places. At least 27 mammal and 17 bird species were recorded. The results confirm previous studies. Small to medium sized mammals (Cricetidae, Dipodidae, Arvicolidae) dominate the prey of the eagle owl whereas birds and invertebrates are less important.
Ecology Of Soil Microarthropods In Gobi Gurvan Saykhan Mountains, Southern Mongolia, Tsedev Bolortuya, Badamdorj Bayartogtokh
Ecology Of Soil Microarthropods In Gobi Gurvan Saykhan Mountains, Southern Mongolia, Tsedev Bolortuya, Badamdorj Bayartogtokh
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In the present paper, we describe the community structure, species diversity, population density, and the character of distribution of soil microarthropods of the Gobi Gurvan Saykhan mountains. In total 45 species of soil microarthropods belonging to 37 genera and 24 families were identified. Twenty-seven species of soil microarthropods belonging to 25 genera and 20 families were found in the Züün Saykhan, 31 species belonging to 27 genera and 19 families in the Dund Saykhan. Oribatid mites are the dominant group (35 species = 77.8% of total species richness), while mesostigmatid mites account for 7 species (15.6 %). Other groups are …
Book And Conference Announcements, Annegret Stubbe, Michael Stubbe
Book And Conference Announcements, Annegret Stubbe, Michael Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Announcements of books and a conference in Erforschung biologischer Ressourcen der Mongolei, band 9, 2005.
Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte
Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This paper reports the results of bird observations at four study sites with many different habitats in the western Chentej-mountains (forest steppe, taiga) at the end of the spring-migration and the beginning of the breeding time. Altogether 134 bird species were observed, about 107 of which are probably breeding birds. Additional birds were caught using 6 mist-nets. In this way 98 birds of 21 species were caught, measured, and ringed. Furthermore feathers have been collected (molting feathers and near two breeding places of Accipiter nisus).
The bird fauna of the larch forests shows a high species richness (108 species), …
Vier Jahrzehnte Erfolgreicher Wissenschaftskooperation Der Universitäten Halle Und Ulan-Bator, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa, K. Wesche
Vier Jahrzehnte Erfolgreicher Wissenschaftskooperation Der Universitäten Halle Und Ulan-Bator, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa, K. Wesche
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The exploration of Asia by scientists from the University of Halle and the Francke Foundations (founded in 1698) has a long tradition, dating back to the 18th century when early researchers reached the northern borders of Mongolia.
In 1962 and 1964, the first large biological expeditions were organized by the Academies of Sciences of the GDR and Mongolia, and zoologists from the Universities of Halle, Berlin and Ulan-Bator were part of the expedition teams. These expeditions aimed at the exploration of southern and western Mongolia, and laid the foundation for extremely valuable scientific collections yielding innumerable herbarium specimens and a …
Types Of Areas And The Origin Of Black Flies Fauna In Mongolia (Diptera: Simuliidae), Josef Halgoš
Types Of Areas And The Origin Of Black Flies Fauna In Mongolia (Diptera: Simuliidae), Josef Halgoš
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The survey of Mongolian Black Flies species (Diptera: Simuliidae) is given in the presented work. The classification based on Emelyanov (1974) and Gorodkov (1984) appeared to be as most advantageous one. Black Flies species found on the Mongolian territory up to now were classified according to the character of their distribution among 5 groups: Holoarctic species (7 species), Eurasian (15), Eastern Palaearctic (20), Turanian-Mediterranean (7), Mongolian endemic species (8). Individual groups are divided according to the type of area into smaller subgroups. The zoogeographical analysis has shown big similarity with Black Flies zoogeography in Siberia and Far East (in percentage …
Reproductive Ecology Of Two Common Woody Species, Juniperus Sabina And Artemisia Santolinifolia, In Mountain Steppes Of Southern Mongolia, Katrin Ronnenberg
Reproductive Ecology Of Two Common Woody Species, Juniperus Sabina And Artemisia Santolinifolia, In Mountain Steppes Of Southern Mongolia, Katrin Ronnenberg
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The present study describes the reproductive ecology of the prostrate shrub Juniperus sabina and the dwarf shrub Artemisia santolinifolia in dry mountain steppes of southern Mongolia. Whereas stands of the juniper are located at the drought limit of the genus’ distributional range, the genus Artemisia is typical of central Asian drylands. Both species produce large numbers of reproductive organs. For Juniperus sabina, however, only 2.5% of the morphologically intact seeds were found to be viable. Correspondingly, neither seedlings nor saplings were found in the field, and recruitment by reseeding happens at most rarely under the present climatic conditions.
Instead, …
Beaver Research In The Uvs Nuur Region, Michael Stubbe, N. Dawaa, R. Samjaa, Annegret Stubbe, A. P. Saveljev, D. Heidecke, D. Sumjaa, H. Ansorge, S. Shar, J.-F. Ducroz
Beaver Research In The Uvs Nuur Region, Michael Stubbe, N. Dawaa, R. Samjaa, Annegret Stubbe, A. P. Saveljev, D. Heidecke, D. Sumjaa, H. Ansorge, S. Shar, J.-F. Ducroz
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In 1985, 1988, and 2002 Castor fiber birulai was introduced to the Tes Gol of the Uvs Nuur basin in North-western Mongolia. The beavers migrated through the Republic of Tyva and settled in the middle part of Tes Gol near the Tyvinian-Mongolian border. About 10 colonies were recorded in this region in 2002. Strict protection of Castor fiber birulai has to be ensured in Mongolia and the Republic of Tyva in future.
Vergleichende Untersuchungen Zur Besiedlung Von Ausgewählten Hochgebirgen Der Nordwest- Und Südmongolei Durch Laufkäfer (Coleoptera: Carabidae) = Comparing Investigations Of The Distribution Of Carabid Beetles (Coleoptera: Carabidae) In Different High Mountain Regions In Northwest- And South Mongolia, Peer Schnitter
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In the years 1977-1979 and 1986 two high mountain regions of Mongolia are observed, especially in regard of the carabid fauna within different altitudes. In one of the investigation areas--the mountains of Charchiraa in Northwest-Mongolia the first transect with any plots was arranged from the Mount Suslan-Chamar to the salt lake Uvs Nuur. The second transect in the mountains of Ich-bogd in South-Mongolia starts at the Mount Baruun-bogd and reaches the salt lake Orog Nuur. The species combinations are very different, only some species could be found in both areas. The carabid coenoses and their distribution within the different altitudes …
Das Arteninventar Der Avifauna Der Mongolei Während Einer Nord-Süd-Durchquerung 1997, Tobias Stenzel, Michael Stubbe, R. Samjaa, Annegret Stubbe, C. Dulamsuren
Das Arteninventar Der Avifauna Der Mongolei Während Einer Nord-Süd-Durchquerung 1997, Tobias Stenzel, Michael Stubbe, R. Samjaa, Annegret Stubbe, C. Dulamsuren
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Here we present a detailed report on bird biodiversity of ecosystems along a North-South transect through Mongolia in 1997whic h serves as a guideline for further research projects and training for students in all Mongolian vegetation zones from northern steppes to southern deserts.
Two hundred fifty-five bird species were observed between 21st of July and 10th of August 1997. The main study sites were located in the North the Selenge-Orchon-basin with meadows and dune woodlands 15 km southern from Suchbaatar, the Middle Gobi-Aimag with desert steppes and sajrs (covered with Ulmus pumila) and in the Bordzongijn-gobi in the South …
First Results Of Wild Ass Research In The South Gobi Aymag/Mongolia In 2003 And 2004, Annegret Stubbe, Michael Stubbe, N. Batsajchan, R. Samjaa, S. Doržderem
First Results Of Wild Ass Research In The South Gobi Aymag/Mongolia In 2003 And 2004, Annegret Stubbe, Michael Stubbe, N. Batsajchan, R. Samjaa, S. Doržderem
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The population of the Mongolian wild ass belongs to the nominate form Equus hemionus hemionus described by Pallas in 1775. This species is adapted to semidesert habitats in the Gobi region and is listed in the Red Book of Mongolia as well as on appendix I of the Washington Convention (CITES). Mapping of the northern border of the distributional range showed a remarkable decrease in size in comparison to the maps of Murzaev (1954) or Bannikov (1954). The pressure of civilization, settlements, motorization, and increasing numbers of domestic livestock in connection with the occupation of water resources and illegal hunting …
Environmental Adaptations Of The Gobi Desert Plants In Mongolia: An Example Of C4-Plants, Ts. Tsendeekhuu, Clanton Candler Black
Environmental Adaptations Of The Gobi Desert Plants In Mongolia: An Example Of C4-Plants, Ts. Tsendeekhuu, Clanton Candler Black
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This paper presents the results of our studies on the ecological adaptations and geographical distribution of plants with C4-photosynthesis in Mongolia using 13C isotope discrimination.
Previous studies identified about 80 C4-species in 8 families in the Mongolian flora. Our investigations lead to the identification of four additional species, which can be regarded as C4-plants. Orostachys spinosa (-16.26‰ 13C), O. thyrsiflora (-16.86‰ 13C), O. fimbriata (-16.15‰ 13C), and Euphorbia humifusa (-23.29‰ 13C). However, as the discrimination level for Euphorbia humifusa is very similar to that of C3-plants it may be switching between C3 and C4 types …
Is Degradation A Major Problem In Semi-Desert Environments Of The Gobi Region In Southern Mongolia?, Karsten Wesche, Vroni Retzer
Is Degradation A Major Problem In Semi-Desert Environments Of The Gobi Region In Southern Mongolia?, Karsten Wesche, Vroni Retzer
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This paper tests predictions derived from the non-equilibrium theory of rangeland science. Data were collected in livestock enclosures situated in the relatively moist desert steppes of the Gobi Gurvan Saykhan region of southern Mongolia from 2000 to 2003. Plant community composition and species’ richness in enclosures showed clear differences between years, but these were equally strong in ungrazed controls. Thus, changes were mainly attributed to differences in precipitation between years as opposed to grazing, as no significant effects thereof were detected. This was also confirmed by data on above-ground standing biomass. This changed tremendously over the years, with differences between …
Breeding Behavior Of The Mongolian Pika (Ochotona Pallasi) In The Gobi Gurvan Saykhan Mountains, Mongolia, Tserendorjiin Munkhzul
Breeding Behavior Of The Mongolian Pika (Ochotona Pallasi) In The Gobi Gurvan Saykhan Mountains, Mongolia, Tserendorjiin Munkhzul
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Behavior, morphology, and biology of the Mongolian pika (Ochotona pallasi) were investigated within the framework of the joint ’Grazing Research Project’ of the Philipps-University of Mar-burg, Germany and the Mongolian National University in Ulaanbaatar. The study took place in the Stipa-Allium-steppes of the upper pediments in the Dund Saykhan mountain of the Gobi Gurvan Saykhan National Park, where its burrows cover a significant part of the area.
The behavior of the Mongolian pikas changes seasonally. During the rut in spring males are generally more occupied with defending their territory and fighting off rivals, while females spend more time …
Quantitative Investigations On Bird Communities In Different Habitats In The Orkhon-Selenge-Valley In Northern Mongolia, Tobias Stenzel, Michael Stubbe, Ravčigijn Samjaa, Sundev Gombobaatar
Quantitative Investigations On Bird Communities In Different Habitats In The Orkhon-Selenge-Valley In Northern Mongolia, Tobias Stenzel, Michael Stubbe, Ravčigijn Samjaa, Sundev Gombobaatar
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In the breeding seasons 2001 to 2003, the avifauna of a study area of about 80 km2 in the Selenge Aymag was studied.
The area is characterized by loose groves of elms (Ulmus pumila) and pine trees (Pinus sylvestris), and a chain of barchan dunes which separate the Orkhon valley from the up to 70 m higher situated forest steppe. Steppe species (Stipa spp.) dominate in the south; the northern steppe part is characterized by Caragana bushes (Caragana microphylla, locally C. stenophylla). Between Orkhon Gol and the eastern dunes, dry steppe …
The Effects Of Anthropogenic Impact On Plant And Soil Cover In Mongolia, Werner Hilbig, Christian Opp
The Effects Of Anthropogenic Impact On Plant And Soil Cover In Mongolia, Werner Hilbig, Christian Opp
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Under the prevailing variable natural conditions nomadic pastoralism was the most suitable form of land use in Mongolia and the neighboring countries in the past. Furthermore, small areas were used for agriculture in some regions. Therefore, anthropogenic influence was present throughout history. In the forest steppe zone this led to the disappearance of forest sites which then gave way to meadow steppe.
The severe impact on the natural pastures by continuous increase of livestock herding and other human activities was perceptible during the socialist period. But since the 1990s, after the transition to market economy, this impact has increased greatly …
Beiträge Zur Ökologie Und Verbreitung Der Steppenwühlmaus Microtus Brandti Radde, 1861 In Der Mongolei = Ecology And Distribution Of The Steppe Vole Microtus Brandti Radde, 1861 In Mongolia, N. Dawaa, Michael Stubbe, Annegret Stubbe
Beiträge Zur Ökologie Und Verbreitung Der Steppenwühlmaus Microtus Brandti Radde, 1861 In Der Mongolei = Ecology And Distribution Of The Steppe Vole Microtus Brandti Radde, 1861 In Mongolia, N. Dawaa, Michael Stubbe, Annegret Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Microtus brandti is one of the most important pest species of Mongolian rodents. Since the publication of Bannikov (1954) the area of expansion is increased, in the Archangaj-Aimag 200 km westward, in the Central Aimag 70 km to the North and in the north-eastern part of Dornogov’- Aimag about 110 km to the South. In years of gradation the plant cover was exterminated up to 100%. We can distinguish a zone of exposed harmfulness with a damage of 70-100%. In this region 16 great centers of infestation were listed. Between 1925 and 1985 six important calamities were noticed, in intervals …