| daily rhythmicity and hibernation in the anatolian ground squirrel under natural and laboratory conditions. | we studied daily rhythmicity of body temperature (t(b)) before and during hibernation in anatolian ground squirrels (spermophilus xanthoprymnus) under natural and laboratory conditions using surgically implanted temperature loggers. under both conditions, robust daily t(b) rhythmicity with parameters comparable to those of other ground squirrel species was observed before but not during hibernation. euthermic animals had robust daily t(b) rhythms with a mean of 37.0 degrees c and a range of excu ... | 2009 | 18797881 |
| localization profiles of natriuretic peptides in hearts of pre-hibernating and hibernating anatolian ground squirrels (spermophilus xanthoprymnus). | the anatolian ground squirrel (spermophilus xanthoprymnus) is a typical example of true mammalian hibernators. in order to adapt to extreme external and internal environments during hibernation, they lower their body temperatures, heart rates and oxygen consumption; however, pathological events such as ischemia and ventricular fibrillation do not occur in their cardiovascular systems. during the hibernation, maintenance of cardiac function is very important for survival of ground squirrels. natr ... | 2019 | 30689110 |
| expression patterns of natriuretic peptides in pre-hibernating and hibernating anatolian ground squirrel (spermophilus xanthoprymnus) lung. | anatolian ground squirrel (spermophilus xanthoprymnus) is a true hibernator. this animal transiently reduces pulmonary function during hibernation. continuance of pulmonary function is very important to survive ground squirrels during the hibernation. natriuretic peptides may be key players in the modulation of pulmonary hemostasis. however, nps' role in pulmonary function during hibernation remains unclear. we aimed to investigate the localization and distribution of atrial natriuretic peptide ... | 2019 | 31445760 |
| expression patterns of natriuretic peptides in pre-hibernating and hibernating anatolian ground squirrel (spermophilus xanthoprymnus) kidney. | hibernation is characterized by marked suppression of renal function. natriuretic peptides (nps) are involved in the regulation of renal function. however, the role of nps in the renal function during hibernation remains unclear. we aimed to investigate the distribution patterns of atrial natriuretic peptide (anp), brain natriuretic peptide (bnp) and c-type natriuretic peptide (cnp) in anatolian ground squirrel (spermophilus xanthoprymnus) kidneys during pre-hibernation and hibernation periods. ... | 2019 | 31754910 |
| nematodes of rodents of armenia | this review summarizes known data on the species composition of nematodes in 24 species of rodents inhabiting the territory of armenia (south of lesser caucasus). the studied rodents include members of some cosmopolitan species (mus musculus, rattus norvegicus, rattus rattus), as well as endemic and narrow-areal species (meriones vinogradovi, spermophilus xanthoprymnus, microtus schidlovskii, mesocricetus brandti, sciurus anomalus). the taxonomical identity of the nematode species reported by pr ... | 2019 | 30316207 |
| histo-anatomical studies on the accessory reproductive glands of the anatolian souslik (spermophilus xanthoprymnus) (mammalia: sciuridae). | in this study, the histo-anatomy of the accessory reproductive glands of the anatolian souslik (spermophilus xanthoprymnus) is investigated, using 102 males of the vouchers which were captured from central anatolia and eastern mediterranean regions. averages of measurements taken from each part of the accessory reproductive glands were as follows: length of vesicular gland [right: 3.96 (+/-0.48) mm; left: 3.70 (+/-0.55) mm]; prostate gland [length: 2.55 (+/-0.38) mm; width: 2.63 (+/-0.45) mm]; l ... | 2004 | 15144281 |
| acoustic analysis of the alarm call of the anatolian ground squirrel spermophilus xanthoprymnus: a description and comparison with alarm calls of the taurus s. taurensis and european s. citellus ground squirrels. | the anatolian ground squirrel spermophilus xanthoprymnus like other ground-dwelling sciurids, emits alarm calls in the presence of predators. in this study, we provide a description of the acoustic structure of alarm call of this species and compare it to those of two closely related species, the taurus ground squirrel spermophilus taurensis and the european ground squirrel spermophilus citellus. the alarm call of s. xanthoprymnus is a tonal sound mostly consisting of two different elements-the ... | 2012 | 22159565 |
| multigenic and morphometric differentiation of ground squirrels (spermophilus, scuiridae, rodentia) in turkey, with a description of a new species. | this study reports on the molecular phylogenetics of ground squirrels, genus spermophilus, in turkey using cytochrome b (1140bp), part of the d-loop and flanking trnas (572bp), x chromosome (867-1051bp) and y chromosome (983-989bp) dna sequences. individuals also were characterized by karyotype and with geometric morphometric analyses of mandibles and skulls. two hundred fourteen individuals from 91 localities were studied. all the data support the recognition of a new species in sw anatolia: th ... | 2007 | 17500011 |