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157 results for “Microtus”
Monitoring of Microtus ochrogaster and Microtus pennsylvanicus populations in three different habitats in east-central Illinois, 1972 to 1997.
Populations of 2 species of arvicoline rodents, the prairie vole (Microtus ochrogaster) and meadow vole (Microtus pennsylvanicus), were monitored monthly from 1972-1997 in three distinct habitats: restored tallgrass prairie, bluegrass (Poa pratensis) and alfalfa (Medicago sativa). The study sites were located in the University of Illinois Biological Research Area (Phillips Tract) and Trelease Prairie. Tallgrass prairie was the original habitat of both species in Illinois. Bluegrass, an introduced species, represents the more common habitat in which the two species can be found today in Illinois. Alfalfa, an atypical habitat, provides an abundant source of high-quality food for both species. At each station, one wooden multiple-capture live-trap was placed. Every month, a two-day period of prebaiting was followed by a 3-day trapping session. The data include the species, individual identification, grid station, sex, reproductive status and body mass. Over the span of 25 years, three trapping sessions monthly were conducted to cover the three habitats, dedicating three weeks each month. Several papers have been based on these data.
Soil and plant biogeochemical and soil temperature variables collected at brown lemming (Lemmus trimucronatus) and tundra vole (Microtus oeconomus) structure sties near Nome, Toolik Lake, and Utqaigvik, Alaska, summer 2018-2020
Soil and plant sampling analysis under small mammal-built structures and controls sites from near the Team Vole fences: Nome, Toolik, Utqiagvik, AK 2018-2020.
Twice weekly monitoring of a Microtus ochrogaster population and social behavior in alfalfa in eastern Illinois, 1982-1987.
These data were obtained as part of a field study on social behavior of the prairie vole, Microtus ochrogaster in alfalfa. The study was conducted in two adjacent 1-ha alfalfa (Medicago sativa) fields within the University of Illinois Biological Research Area (Phillips Tract). Social groups were monitored over a 63-month period, from March 1982 through July 1984 in field 1 and from October 1983 to May 1987 in field 2, by locating underground and surface nests and subsequent trapping, twice weekly. 4-5 live traps were set around the entrances to underground nests and runways leading to a surface nest of social groups. Each month the study sites were also trapped at a 10-m grid interval as a part of an ongoing 25-year trapping study (Getz, L.L. 2024. Environmental Data Initiative. https://doi.org/10.6073/pasta/2dae8f08578ce31e7817c92a0f6acc87).
Fig. 4 in Morphotype And Multivariate Analysis Of The Occlusal Pattern Of The First Lower Molar In European And Asian Arvicoline Species (Rodentia, Microtus, Alexandromys)
Fig. 4. Differentiation on 16 Microtus samples by the morphotypic variation of the occlusal pattern.
Fig. 3 in Morphotype And Multivariate Analysis Of The Occlusal Pattern Of The First Lower Molar In European And Asian Arvicoline Species (Rodentia, Microtus, Alexandromys)
Fig. 3. Differentiation on six East Asian vole samples by the morphotypic variation of the occlusal pattern.
Fig. 1 in Morphotype And Multivariate Analysis Of The Occlusal Pattern Of The First Lower Molar In European And Asian Arvicoline Species (Rodentia, Microtus, Alexandromys)
Fig. 1. Elements of the occlusal surface of m1 (the terminology follows van der Meulen, Zagwijn, 1974; Maul et al., 2007).
Fig. 7 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 7. The relation between the upper molars (M1–3) and foramen incisivum length (FIL) in M. arvalis and M. agrestis.
Fig. 6 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 6. The relation between the braincase height (CRH) and width (CRB) in T. tatricus and T. subterraneus.
Fig. 3 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 3. Diagnostic characters of the region of frontal bones in Terricola spp., photo (a) and scheme (b).
Fig. 10 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 10. General contours of molars: a — M2 in M. agrestis; b — M2 in other Microtus s. l.; c — m1 in M. arvalis and M. agrestis; d — m1 in Terricola spp.; e — M3 in T. subterraneus; f — M3 in T. tatricus. A — anteroconid complex.
Fig. 1 in Interspecific Interactions as a Factor of Limitation of Geographical Distribution: Evidence Obtained by Modeling Home Ranges of Vole Twin Species Microtus Arvalis – M. Levis (Rodentia, Microtidae)
Fig. 1. Potential distribution of the Common vole Microtus arvalis. White circles are georeferenced occurrences of genetically identified individuals; black indicates areas of maximum habitat suitability, white are areas of lowest suitability.
Fig. 5 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 5. General view of the area of frontal sutures: а–b) Terricola spp., photo and scheme; c–d) M. agrestis, photo and scheme; e–f) M. arvalis, photo and scheme.
Fig. 8 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 8. The relation between the upper molars length (M1–3) and braincase height (CRH) in M. arvalis and M. agrestis.
Fig. 4 in Diagnostic Criteria For Identification Of Microtus S. L. Species (Rodentia, Arvicolidae) Of The Ukrainian Carpathians
Fig. 4. Diagnostic characters of the region of frontal bones of Microtus s. str. species, photo (a) and scheme (b).
Figure 7 in Diet and reproductive outputs of common barn-owl (Tyto alba) during the common vole (Microtus arvalis) outbreak and crash
Figure 7. GLMM diagrams illustrating the effect of the main and alternative prey taxa and the two derived indices on the number of fledglings (A: Common vole, B: Apodemus genus, C: Microtinae/Murinae ratio, D: Trophic level index).
Figure 5 in Diet and reproductive outputs of common barn-owl (Tyto alba) during the common vole (Microtus arvalis) outbreak and crash
Figure 5. GLMM diagrams illustrating the effect of the main and alternative prey taxa and the two derived indices on clutch size (A: Common vole, B–C: Apodemus genus, D–E: Microtinae/Murinae ratio, F: Trophic level index).
Figure 4 in Diet and reproductive outputs of common barn-owl (Tyto alba) during the common vole (Microtus arvalis) outbreak and crash
Figure 4. Box plots of the relative frequency of the main and alternative prey taxa. The bottom and top limits of each box are the lower and upper quartiles; error bars equal ±1.5 times the interquartile range; the horizontal black band within each box is the median; and the red triangle is the mean.
Figure 6 in Diet and reproductive outputs of common barn-owl (Tyto alba) during the common vole (Microtus arvalis) outbreak and crash
Figure 6. GLMM diagrams illustrating the effect of the main and alternative prey taxa and the two derived indices on the number of hatchlings (A: Common vole, B: Apodemus genus, C: Microtinae/Murinae ratio, D: Trophic level index).
Figure 3 in Diet and reproductive outputs of common barn-owl (Tyto alba) during the common vole (Microtus arvalis) outbreak and crash
Figure 3. Rank abundance curves of the prey composition of the common barn-owl in different outbreak and crash years, and cumulative results of these two periods.
Figure 2 in Diet and reproductive outputs of common barn-owl (Tyto alba) during the common vole (Microtus arvalis) outbreak and crash
Figure 2. Box plots of barn owls' breeding parameters (A: clutch size; B: number of hatchlings; C: number of fledglings). The bottom and top limits of each box are the lower and upper quartiles; error bars equal ±1.5 times the interquartile range; the horizontal black band within each box is the median; and the red triangle is the mean.
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Allen Brain Atlas
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