Distribution, Abundance, and Habitat Associations of Franklin’s Ground Squirrel (Spermophilus franklinii Sabine 1822)
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منابع مشابه
Renal function in the hibernating ground squirrel Spermophilus columbianus.
MOY, hZHARD h/I. Renal junction in the hibernating ground squirrel Spermophilus columbianus. Am. J. Physiol. 220(3) : 747-753. 1971. -A tissue-slice analysis showed no solute gradient of urea and sodium from the corticomedullary boundary through the papilla of torpid Columbian ground squirrels. Ground squirrels arousing normally from torpor and sacrificed 15 or 40 min after urine began to flow ...
متن کاملGeneric Revision in the Holarctic Ground Squirrel Genus Spermophilus
The substantial body of research on Holarctic ground squirrels amassed over the past century documents considerable variability in morphological, cytogenetic, ecological, and behavioral attributes in the genus Spermophilus F. Cuvier, 1825. Recent molecular phylogenetic studies suggest that the traditionally recognized genera Marmota Blumenbach, 1779 (marmots), Cynomys Rafinesque, 1817 (prairie ...
متن کاملNatural entrainment without dawn and dusk: the case of the European ground squirrel (Spermophilus citellus).
Observational data collected in the field and in enclosures show that diurnal, burrow-dwelling European ground squirrels (Spermophilus citellus) never were above ground during twilight at dawn or at dusk. The animals emerged on average 4.02 h (SD = 0.45) after civil twilight at dawn and retreated in their burrows on average 2.87 h (SD = 0.47) before civil twilight at dusk. Daily patterns of lig...
متن کاملFire and ice: genetic structure of the Uinta ground squirrel (Spermophilus armatus) across the Yellowstone hotspot.
The range of the Uinta ground squirrel, Spermophilus armatus, is centred over one of the most tectonically active regions today, the Yellowstone hotspot. We document the role of Quaternary tectonic and climatic history on the genetic structure of this species by screening museum and extant individuals throughout its range. Phylogeographic, divergence time, and demographic analyses of partial mi...
متن کاملThe distributions of photoreceptors and ganglion cells in the California ground squirrel, Spermophilus beecheyi.
The topographical distributions of photoreceptors and ganglion cells of the California ground squirrel (Spermophilus beecheyi) were quantified in a light microscopic study. The central retina contains broad, horizontal streaks of high photoreceptor density (40-44,000/mm2) and high ganglion cell density (20-24,000/mm2). The isodensity contours of both cell types are elliptical and oriented along...
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ژورنال
عنوان ژورنال: Illinois Natural History Survey Bulletin
سال: 2007
ISSN: 2644-0687
DOI: 10.21900/j.inhs.v38.106