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Microtus pennsylvanicus Stock Photos and Images
RMD3K29G–A Great Gray Owl (Strix nebulosa) feeds on a recently caught meadow vole (Microtus pennsylvanicus), Missoula, Montana
RFBFHWT1–Adult northern pygmy-owl (Glaucidium gnoma) with a meadow vole (Microtus pennsylvanicus), southern Alberta, Canada
RFPHEX9F–Little meadow vole (Microtus pennsylvanicus) standing on a wooden log on a green grass field
RM2HM30EF–Meadow Vole Runway and Tunnels made under the snow appearing in spring in a field in Pennsylvania's Pocono Mountains.
RF2JBJXG8–Wiesenwühlmaus, Microtus pennsylvanicus, digital restaurierte Reproduktion einer Originalvorlage aus dem 19. Jahrhundert, genaues Originaldatum nicht bekannt / eastern meadow vole, Microtus pennsylvanicus, called the field mouse or meadow mouse, historical, digital improved reproduction of an original from the 19th century
RF2BAXXH4–Plate 45 Wilson's Meadow Mouse (Meadow Vole) The Viviparous Quadrupeds of North America, John James Audubon, Very high resolution quality edited image
RMREF76R–. A comparison of small mammals of the deciduous forest and old field habitats of Sweet Briar, Virginia. Sweet Briar College; Mammals; Mammals; Rodent populations; Mammal populations. 27. Photo 9' Microtus pennsylvanicus. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harold, Catherine E. , 1957-.
![. Fig. 81. Distribution of Microtus pennsylvanicus in Colorado. 1. M. p. finitus. 2. M. p. modestus. 3. M. p. uligocola. For explanation of symbols, see p. 9. 5 mi. NW Hooper, 2 (1 AMNH, 1 DMNH); 9 mi. E Center, 7 (AMNH). CUSTER COUNTY: West- cliffe, 7800 ft., 1 (WC). RIO GRANDE COUNTY: 8 mi. ENE Monte Vista, 1 (ASC); Del Norte, 2 (USNM); 8 mi. S Monte Vista, 7660 ft., 37 (UI). ALAMOSA COUNTY: Medano Ranch, 15 mi. NE Mosca, 2 (1 USNM, 1 WC); Hooper, 2 (AMNH); near Visitor's Center, Great Sand Dunes National Monument, 1 (GSDNM); Mosca, 5 (WC); 1/2 mi. S Uracca [Verracca] Pioneer Cemetery, 8800 Stock Photo](https://c8.alamy.com/comp/MCKP9B/fig-81-distribution-of-microtus-pennsylvanicus-in-colorado-1-m-p-finitus-2-m-p-modestus-3-m-p-uligocola-for-explanation-of-symbols-see-p-9-5-mi-nw-hooper-2-1-amnh-1-dmnh-9-mi-e-center-7-amnh-custer-county-west-cliffe-7800-ft-1-wc-rio-grande-county-8-mi-ene-monte-vista-1-asc-del-norte-2-usnm-8-mi-s-monte-vista-7660-ft-37-ui-alamosa-county-medano-ranch-15-mi-ne-mosca-2-1-usnm-1-wc-hooper-2-amnh-near-visitors-center-great-sand-dunes-national-monument-1-gsdnm-mosca-5-wc-12-mi-s-uracca-verracca-pioneer-cemetery-8800-MCKP9B.jpg ". Fig. 81. Distribution of Microtus pennsylvanicus in Colorado. 1. M. p. finitus. 2. M. p. modestus. 3. M. p. uligocola. For explanation of symbols, see p. 9. 5 mi. NW Hooper, 2 (1 AMNH, 1 DMNH); 9 mi. E Center, 7 (AMNH). CUSTER COUNTY: West- cliffe, 7800 ft., 1 (WC). RIO GRANDE COUNTY: 8 mi. ENE Monte Vista, 1 (ASC); Del Norte, 2 (USNM); 8 mi. S Monte Vista, 7660 ft., 37 (UI). ALAMOSA COUNTY: Medano Ranch, 15 mi. NE Mosca, 2 (1 USNM, 1 WC); Hooper, 2 (AMNH); near Visitor's Center, Great Sand Dunes National Monument, 1 (GSDNM); Mosca, 5 (WC); 1/2 mi. S Uracca [Verracca] Pioneer Cemetery, 8800 Stock Photo")
RMMCKP9B–. Fig. 81. Distribution of Microtus pennsylvanicus in Colorado. 1. M. p. finitus. 2. M. p. modestus. 3. M. p. uligocola. For explanation of symbols, see p. 9. 5 mi. NW Hooper, 2 (1 AMNH, 1 DMNH); 9 mi. E Center, 7 (AMNH). CUSTER COUNTY: West- cliffe, 7800 ft., 1 (WC). RIO GRANDE COUNTY: 8 mi. ENE Monte Vista, 1 (ASC); Del Norte, 2 (USNM); 8 mi. S Monte Vista, 7660 ft., 37 (UI). ALAMOSA COUNTY: Medano Ranch, 15 mi. NE Mosca, 2 (1 USNM, 1 WC); Hooper, 2 (AMNH); near Visitor's Center, Great Sand Dunes National Monument, 1 (GSDNM); Mosca, 5 (WC); 1/2 mi. S Uracca [Verracca] Pioneer Cemetery, 8800
RFBFHWRM–Adult northern pygmy-owl (Glaucidium gnoma) with a meadow vole (Microtus pennsylvanicus), southern Alberta, Canada
RM2HM307T–Meadow Vole Runway and Tunnels made under the snow appearing in spring in a field in Pennsylvania's Pocono Mountains.
RF2JBJXGX–Wiesenwühlmaus, Microtus pennsylvanicus, digital restaurierte Reproduktion einer Originalvorlage aus dem 19. Jahrhundert, genaues Originaldatum nicht bekannt / meadow vole, Microtus pennsylvanicus, called the field mouse or meadow mouse, historical, digital improved reproduction of an original from the 19th century
RMRHM1RH–. A biological survey of North Dakota. Mammals North Dakota; Geomorphology North Dakota; Life zones North Dakota; Natural history North Dakota. Fig. 2.—Bean Mouse (Microtus pennsylvanicus wahema) Captive taken with store of ground beans near Cannon Ball. About two-thirds natural size. B252M Fig. 3.—Richardson Kangaroo Rat (Perodipus montanus RICHARDSONl). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bailey, Vernon, 1864-
RM2HM2YAA–Meadow Vole Runway and Tunnels made under the snow appearing in spring in a field in Pennsylvania's Pocono Mountains.
![. Bulletin. Animals -- United States; Birds -- United States. Bui. 31, Biological Survey, U. S. Dept. of Agriculture. Plate I. J k ^^^^^^BHm%^ ^1 H v^^^^^^^^^l ^^^K "i^^^^^^^^H B 1 /^ f. Fig. 1.—Meadow Mouse (Microtus pennsylvanicus'. Fig. 2.—Pine Mouse (Microtus pinetorum scalopsoides).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Biological Survey. Washington : G. P. O. Stock Photo](https://c8.alamy.com/comp/RH150K/bulletin-animals-united-states-birds-united-states-bui-31-biological-survey-u-s-dept-of-agriculture-plate-i-j-k-bhm-1-h-vl-k-quotih-b-1-f-fig-1meadow-mouse-microtus-pennsylvanicus-fig-2pine-mouse-microtus-pinetorum-scalopsoides-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-united-states-bureau-of-biological-survey-washington-g-p-o-RH150K.jpg ". Bulletin. Animals -- United States; Birds -- United States. Bui. 31, Biological Survey, U. S. Dept. of Agriculture. Plate I. J k ^^^^^^BHm%^ ^1 H v^^^^^^^^^l ^^^K "i^^^^^^^^H B 1 /^ f. Fig. 1.—Meadow Mouse (Microtus pennsylvanicus'. Fig. 2.—Pine Mouse (Microtus pinetorum scalopsoides).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Biological Survey. Washington : G. P. O. Stock Photo")
RMRH150K–. Bulletin. Animals -- United States; Birds -- United States. Bui. 31, Biological Survey, U. S. Dept. of Agriculture. Plate I. J k ^^^^^^BHm%^ ^1 H v^^^^^^^^^l ^^^K "i^^^^^^^^H B 1 /^ f. Fig. 1.—Meadow Mouse (Microtus pennsylvanicus'. Fig. 2.—Pine Mouse (Microtus pinetorum scalopsoides).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Biological Survey. Washington : G. P. O.
RM2HM2YPE–Meadow Vole Runway and Tunnels made under the snow appearing in spring in a field in Pennsylvania's Pocono Mountains.
RMRHM1T4–. A biological survey of North Dakota. Mammals North Dakota; Geomorphology North Dakota; Life zones North Dakota; Natural history North Dakota. Fig. I.—Osgood White-footed Mouse (Peromyscus manigulatus osGooDi) IN Captivity Slightly reduced. Fig. 2.—Bean Mouse (Microtus pennsylvanicus wahema) Captive taken with store of ground beans near Cannon Ball. About two-thirds natural size. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original wo
RMRG0F68–. The Canadian field-naturalist. Natural history; Sciences naturelles. 436 The Canadian Field-Naturalist Vol. 120 ing to the nest once, and twice the food transfer took place outside the nest. Prey delivery intervals at nest Number 1 varied from 49 minutes to 3 hours and 8 min- utes (on average 120.4 minutes ± 66.3 minutes, n = 8). These were longer than intervals between feeding of fledghngs reported by Lang et al. (1991) from north- em Manitoba: 48.5 min ± 34.9 SD (n = 12, range 10- 130 min). Of 10 observed prey items 7 were Meadow Voles {Microtus pennsylvanicus), 1 Northern Short- tailed Sh
RMRGTF4Y–. Bulletin - Biological Survey. Zoology, Economic. Bui. 31, Biological Survey, U. S. Dept. of Agriculture. Plate I.. Fig. 1 .—Meadow Mouse (Microtus pennsylvanicus). Fig. 2.—Pine Mouse (Microtus pinetorum scalopsoides).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Biological Survey. Washington : Govt. print. off.
RMRH008G–. Bulletin. Geography. 282 PRAIRIE COMMUNITIES fissilis), of the strawberry flea-beetle {Typophorus canellus), and the corn rootw'orms (Diabroiica) (174), and of many other insects well known in economic literature, burrow into the roots of the plants in the larval stage. Many of the grass-eating cutworms, caterpillars, and sawflies (Fig. 287) pupate beneath the surface of the ground. The salamander {Amhlystoma tigrinum) spends ten months of each year buried in the mud of such temporary ponds. The Pennsylvania meadow-mouse {Microtus pennsylvanicus Or.) has been common in these situations.. Fig
RMRHK60B–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. 130 Carleton spv. mpf-^ Fig. 3. Ventral view of two common palatal arrangements observed in Arvi- colidae: left, simple condition as exemplified by Clethrionomys gapperi, Virginia; right, complicated configuration as exhibited by Microtus pennsylvanicus, Wisconsin. For abbreviations, see Fig. 1. prevalence of such traits could be used to measure genetical differ- ences between local populations. In their pioneering studies of arvicolids, Hinton (1926) and Mil- ler (1896) attached particular taxonomic import to the bony archi-
RMRG1CY4–. The Canadian field-naturalist. 78 The Canadian Field-Naturalis7 [Vol. 70 ^ DRUMMOND'S VOLE IN MANITOBA Stuart Criddle Aweme, Treesbank, Manitoba Received for Dublication Mav 2. 19SS My first introduction to Drummond's vole Microtus pennsylvanicus drummondii (Audu- bon and Bachman) was made under striking- ly different physiographical conditions to those which prevail in the district today. spring and early summer evenings the voices of countless numbers of bullfrogs, toads and salamanders pouring forth their nuptial songs of love from every pond made music which was perhaps a trifle harsh ye
RMRR27Y6–. Advances in the study of mammalian behavior. Mammals. 704 Spec. Publ. Amer. Soc. Mamm. 7. m' j'j'a 's' o'n'd' j'f'm'a'm'j' j'a's' o'n'd' j'f'm'a'm'j' j'a's' o'n' d'j'f'm' a'm'j' j' 1972 1973 1974 1975 Fig. 1. Demography of a cycling vole population, Microtus pennsylvanicus, in southeastern Massachusetts. Shading identifies winter months. Summer breeding periods are denoted by vertical lines. (From Tamarin, 19776; copyright 1977, The Ecological Society of America.) ual voles, either through direct contacts or by indirect cues to density such as pheromonal signals (Bronson, this volume; Muller
RMRHK54Y–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. 580 Taitt and Krebs 100. 1968 69 70 71 72 73 74 75 76 77 78 Fig. 3. Population densities of Microtus pennsylvanicus on a control oldfield at Pinawa, Manitoba (reproduced, with permission, from Mihok, in press). Berkeley led by Pearson, Lidicker, and Pitelka. Unfortunately, like most vole population studies, techniques have not been standardized and we can only hope that results are comparable, as Pearson (1971) demonstrated for two studies. Lidicker (1973) reported the longest time series for this species (13 years), but we co
RMRHK5YJ–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. 142 Carleton. AL AL PL T Ls Fig. 5. Occlusal view of the upper right (left) and lower left (right) molar toothrows of Microtus pennsylvanicus (from Virginia) illustrating one possible alpha- numeric labelling scheme. Abbreviations are: AL, anterior loop; PL, posterior loop; TLs, transverse loops; a-g, reentrant folds; 1-5, salient angles of closed triangles; 6- 7, salient angles of open triangles. followed Hinton's (1926) scheme for labelling the triangles, salient angles, and reentrant angles from anterior to posterior in the
RMRG7T1J–. Bulletin - United States National Museum. Science. 64 BULLETIN 171, UNITED STATES NATIONAL MUSEUM Also M3 is somewhat more robust than is common in the Recent species. Microtus pennsylvanicus, the typical microtine form living in Mary- land today, exliibits a more complex pattern in the first lower tooth.. Figure Z5.—Microtus (or Pitymysl) cf. invoiuius (Cope): Right ramus of mandible (U.S.N.M. no. 12386), lateral and occlusal views (pattern of M3 taken from mandible U.S.N.M. no. 7772). X 3. Cumberland Cave Pleistocene, Maryland. Presumably M. pennsylvanicus is to be regarded as possessing a
RMRHK5YC–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. 146 Carleton. Fig. 6. Occlusal view of principal molar variants in species of Microtus (see also Table 2). M- (=M2): a, M. (Pedomys) ochrogaster; b, M. {Microtus) pennsylvanicus. M^ (=M3): a, M. {Pedomys) ochrogaster; b, M. {Microtus) pennsylvanicus; c, M. {Microtus) chrotorrhinus. M, (=ml): a, M. {Orthriomys) umbrosus; b, M. {Microtus) oeconomus; c, M. {Microtus) pennsylvanicus; d, M. {Stenocranius) miurus. M2 (=m2): a, M. {Pedomys) ochrogaster; b, M. {Microtus) pennsylvanicus. M, (=m3): a, M. {Microtus) pennsylvanicus; b, M.
RMRHK677–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. 90 Hoffmann and Koeppl. Fig. 3. Distribution of Microtus pennsylvanicus and its insular allospecies M. breweri (27) and M. nesophilus (28; extinct) (modified from Hall, 1981). Subspecies of M. pennsylvanicus are: 1, M. p. acadicus; 2, M. p. admiraltiae; 3, M. p. alcorni; 4, M. p. aphorodemus; 5, M. p. chihuahensis; 6, M. p. copelandi; 7, M. p. drummondii; 8, M. p. enixus; 9, M. p. fimtus; 10, M. p. fontigenus; 11, M. /?, Junebris; 12, M. /?. insperatus; 13, M. p. kincaidi; 14, M. /?. labradorius; 15, M. p. magdalenensis; 16, M
RMRG3RGG–. The Canadian field-naturalist. Natural history. J I I I I L 120 126 130 186 140 146 160 166 160 166 170 176 180 186 160 166 200 206 210 216 230 226 260 266 240 246 260 266 4 r 0. 120 126 180 166 140 146 160 166 160 166 170 176 180 166 1 SO 166 200 206 210 216 220 228 280 280 240 246 260 266 Figure 1. Distributions of (above) the number of Crotalus viridis viridis with Lagiirus curtatus in their guts over the study period; n = 12; and (below) the number of Crotalus viridis viridis with Microtus pennsylvanicus in their guts over the study period; n = 8. The verticle axis gives the number of ra
![. Distribution of mammals in Colorado. Mammals. 236 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3 1858; type locality, Sawatch [Cochetopa] Pass, Sa- guache Co., Colorado. Microtus pennsylvanicus modestus, V. Bailey, N. Amer. Fauna, 17:20, 6 June 1900. Distribution in Colorado.—South-central part of state, south of Arkansas River (Fig. 81). Comparison.—From M. p. uligocola, the subspecies of north-central Colorado, M. p. modestus differs in having darker dorsal color, a narrower skull, and a shorter average maxil- lary toothrow. For detailed comparisons, see Anderson (1956:93). Measurements.—Mean ( Stock Photo](https://c8.alamy.com/comp/RCCX0W/distribution-of-mammals-in-colorado-mammals-236-monograph-museum-of-natural-history-no-3-1858-type-locality-sawatch-cochetopa-pass-sa-guache-co-colorado-microtus-pennsylvanicus-modestus-v-bailey-n-amer-fauna-1720-6-june-1900-distribution-in-coloradosouth-central-part-of-state-south-of-arkansas-river-fig-81-comparisonfrom-m-p-uligocola-the-subspecies-of-north-central-colorado-m-p-modestus-differs-in-having-darker-dorsal-color-a-narrower-skull-and-a-shorter-average-maxil-lary-toothrow-for-detailed-comparisons-see-anderson-195693-measurementsmean-RCCX0W.jpg ". Distribution of mammals in Colorado. Mammals. 236 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3 1858; type locality, Sawatch [Cochetopa] Pass, Sa- guache Co., Colorado. Microtus pennsylvanicus modestus, V. Bailey, N. Amer. Fauna, 17:20, 6 June 1900. Distribution in Colorado.—South-central part of state, south of Arkansas River (Fig. 81). Comparison.—From M. p. uligocola, the subspecies of north-central Colorado, M. p. modestus differs in having darker dorsal color, a narrower skull, and a shorter average maxil- lary toothrow. For detailed comparisons, see Anderson (1956:93). Measurements.—Mean ( Stock Photo")
RMRCCX0W–. Distribution of mammals in Colorado. Mammals. 236 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3 1858; type locality, Sawatch [Cochetopa] Pass, Sa- guache Co., Colorado. Microtus pennsylvanicus modestus, V. Bailey, N. Amer. Fauna, 17:20, 6 June 1900. Distribution in Colorado.—South-central part of state, south of Arkansas River (Fig. 81). Comparison.—From M. p. uligocola, the subspecies of north-central Colorado, M. p. modestus differs in having darker dorsal color, a narrower skull, and a shorter average maxil- lary toothrow. For detailed comparisons, see Anderson (1956:93). Measurements.—Mean (
RMRM8T66–. Annual report. Entomological Society of Ontario; Insect pests; Insects. SOCIETY OF ONTARIO - 1955 93 Five voles (Microtus p. pennsylvanicus Orel), two short-tailed shrews {Blarina brevicauda Bole and Moulthrop), and one jumping mouse (Zapus hudsonius Zimmermann) were trapped in and around the two Brantford woodlots. None of these animals was infested with larvae at time of trapping.. See text, p. 91 IRAXSPLANTATION EXPERTMENTS Second and third instar larvae were removed from P. leucopus and inserted heneath the skin of the right or left posterior ventral surfaces of laboratory white mice, us
RMRG0D0K–. The Canadian field-naturalist. 246 The Canadian Field-Naturalist Vol. 98. Figure I. Study area. 1 — Hogg Is., 2 — Thrum Cap; 3 — Blackberry Is.; 4 — Sherosels.; 5 — One Tree Is.; 6 — Bald Thrum; 7 — Cove Thrum; 8 — Banks Is.; 9 — Pound Is. leucopus are both woodland species, and generally require larger islands (Crowell 1973). The islands containing only C. gapperi were predomi- nantly wooded, but contained some habitat suitable for Microtus. The apparent absence of the latter from these two islands may only reflect the extremely low numbers of M. pennsylvanicus on the adjacent mainland at t
![. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. "' b+V. Fig. 6. Space use for four free-ranging meadow voles (M. pennsylvanicus) during a 24-h period on 17 and 18 August 1975 in Virginia. Positions were recorded by radiotelemetry every 10 min for all four voles. The space use for each vole is shown for each 4-h period, first separately, then combined. Reference markers (^ + , '' + ) are the same for all voles and are 15 m apart. Note that the scale was changed for combined plots. Males 1 and 2 were 50 g each; female 1 was 41 g; female 2 was 43 g.. Please note that thes Stock Photo](https://c8.alamy.com/comp/RHK57C/biology-of-new-world-microtus-rodents-rodents-microtus-voles-quot-bv-fig-6-space-use-for-four-free-ranging-meadow-voles-m-pennsylvanicus-during-a-24-h-period-on-17-and-18-august-1975-in-virginia-positions-were-recorded-by-radiotelemetry-every-10-min-for-all-four-voles-the-space-use-for-each-vole-is-shown-for-each-4-h-period-first-separately-then-combined-reference-markers-are-the-same-for-all-voles-and-are-15-m-apart-note-that-the-scale-was-changed-for-combined-plots-males-1-and-2-were-50-g-each-female-1-was-41-g-female-2-was-43-g-please-note-that-thes-RHK57C.jpg ". Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. "' b+V. Fig. 6. Space use for four free-ranging meadow voles (M. pennsylvanicus) during a 24-h period on 17 and 18 August 1975 in Virginia. Positions were recorded by radiotelemetry every 10 min for all four voles. The space use for each vole is shown for each 4-h period, first separately, then combined. Reference markers (^ + , '' + ) are the same for all voles and are 15 m apart. Note that the scale was changed for combined plots. Males 1 and 2 were 50 g each; female 1 was 41 g; female 2 was 43 g.. Please note that thes Stock Photo")
RMRHK57C–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. "' b+V. Fig. 6. Space use for four free-ranging meadow voles (M. pennsylvanicus) during a 24-h period on 17 and 18 August 1975 in Virginia. Positions were recorded by radiotelemetry every 10 min for all four voles. The space use for each vole is shown for each 4-h period, first separately, then combined. Reference markers (^ + , '' + ) are the same for all voles and are 15 m apart. Note that the scale was changed for combined plots. Males 1 and 2 were 50 g each; female 1 was 41 g; female 2 was 43 g.. Please note that thes
RMRHK69D–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. Fig. 7. Selected morphotypes of ml and M2 in Microtus. A, ml typical of M. paroperarius group; B, ml typical of non-paroperarius group of Microtus; C, M2 typical of most non-pennsylvamcus species of Microtus; D, M2 seen in some M. mexicanus and M. calijornicus showing incipient development of additional triangle; E, M2 of M. richardsont showing further development of additional triangle; F, M2 typical of M. pennsylvanicus showing additional triangle. specimens from New Paris #4 are equivalent in size to those from extant popul
RMRHK67J–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. Zoogeography 89. Fig. 2. Distribution of Microtus mturus (mainland) and its insular allospecies M. abbreviatus (modified from Hall, 1981). Subspecies are: , M. m. andersom; 2, M. m. cantator; 3, M. m. miurus; 4, M. m. muriei; 5, M. m. areas; 6, M. a. abbreviatus; 7, M. a. fisheri. (Fig. 2) are the singing vole, M. miurus (and its insular allospecies, the St. Matthew Island vole, M. abbreviatus), and the meadow vole, M. pennsylvanicus (Fig. 3). Microtus miurus and M. abbreviatus are classified in the subgenus Stenocranius toge
RMRHK58E–. Biology of New World Microtus. Rodents; Rodents; Microtus; Voles. 404 Madison +. Fig. 5. Local movements for a 52 g male meadow vole (M. pennsylvanicus) from 2150 h to 0200 h on 17 and 18 August 1975 in Virginia (see Fig. 6, male 2). Positions (•) were recorded using radiotelemetry every 10 min; 14 such positions are represented between nest (•) departure at 2150 and nest return at 0200 h (position 1 is first dot after leaving nest, position 2 is second dot, etc.). Approximate course is indicated by straight lines. Distance between reference markers ( + ) is 15 m. local reconnaissance in tha
RMRG1BH3–. The Canadian field-naturalist. P C MoMpMmMI Ph S PC MoMpMmMI Ph 5 SPECIES Figure 2. Density indices for small rodents during the summer of 1973. P = Peromyscus maniculatus; C = Clethrionomys rutilus; Mo = Microtus oeconomus; Mp = M. pennsylvanicus; Mm = M. miurus; Ml = M. longicaudus; Ph = Phena- comys intermedius; S = Synaptomys borealis. NORTHERN AREAS. P C MoMpMmMI Ph S P C MoMpMmMI Ph S SPECIES P C MoMpMmMI Ph S Figure 3. Density indices for small rodents during the summer of 1974. Species abbreviations as in Figure 2. three areas sampled or the different habitats had different species d
RMRG1BHR–. The Canadian field-naturalist. 1976 KREBS and WINGATE; SMALL MAMMAL COMMUNITIES, KLUANE REGION 383 3.0 2.5 20 < 1.5- §1.0 q: liJ Q-0.5H SOUTHERN AREAS 30 25 2.0- 1.5 NORTHERN AREAS. P C MoMpMmMI Ph S PC MoMpMmMI Ph 5 SPECIES Figure 2. Density indices for small rodents during the summer of 1973. P = Peromyscus maniculatus; C = Clethrionomys rutilus; Mo = Microtus oeconomus; Mp = M. pennsylvanicus; Mm = M. miurus; Ml = M. longicaudus; Ph = Phena- comys intermedius; S = Synaptomys borealis. NORTHERN AREAS. Please note that these images are extracted from scanned page images that may have bee
RMRK0DM6–. Athlon : essays on palaeontology in honour of Loris Shano Russell. Paleontology. HAND HILLS MAMMALS tb PB1 4l^ 'jjfi MP Fig. 6 Cricetidae, teeth in occlusal aspect (scale = 1 mm). Mesial to left in b, d; to right in a. c; buccal to top of page. a-b. Copemys sp. A. RM1 pma p71.54.37. b. RM, pma p71.54.38. c-d. Microtus cf. M. pennsylvanicus. c. RM^ ua 8534. d. RMj or M2 ua 8535. Subfamily Microtinae Microtus cf. pennsylvanicus Fig. 6c, D Material RM2, ua 8534. RM! or M,, ua 8535. Provenance ua locality. Description The RM2 (Fig. 6c) has a lingually rounded mesial loop, and a dentine tract cau
RMRDX6E5–. [Collected reprints, 1912-1919. Mammals; Mammals; Birds. 172 Field Museum of Natural History —Zoology, Vol. XL. Skulls of MuridcB. (About natural size.) I, Mus musculus; 2, Epimys norvegicus; 3, Peromyscus leucopus; 4, Oryzomys palustris: S> ^^^' tomaf. illinoiensis; 6, Evotomys gapperi; 7, Microtus pennsylvanicus; 8, Fiber zibethicus; 9i Synapio- mys cooper*.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Cory, Char
RMRCCX0R–. Distribution of mammals in Colorado. Mammals. 238 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3 and (to a lesser extent) M. pennsylvanicus. Microtus montanus is allopatric with the prai- rie vole. Cruzan (1968) studied interactions among the species of Microtus in the Front Range. Typical habitat of the montane vole is moist meadows, but grassy sites well above standing water also are occupied. Runways and burrows frequently are encountered at the bases of aspens (Populus tremuloides). As a generalization, M. montanus has a broader range of ecological tolerance in Colorado than does M. pennsylva
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