| green tree frog (hyla cinerea) and ground squirrel (xerospermophilus spilosoma) mortality attributed to inland brevetoxin transportation at padre island national seashore, texas, 2015. | on 16 september 2015, a red tide (karenia brevis) bloom impacted coastal areas of padre island national seashore park. two days later and about 0.9 km inland, 30-40 adult green tree frogs (hyla cinerea) were found dead after displaying tremors, weakness, labored breathing, and other signs of neurologic impairment. a rainstorm, accompanied by high winds, rough surf, and high tides, which could have aerosolized brevetoxin, occurred on the morning of the mortality event. frog carcasses were healthy ... | 2017 | 28829928 |
| a new species of subulura (nematoda: subuluroidea) from ground squirrels, spermophilus spilosoma bennett, 1833, in new mexico. | a description is presented of a new species of subulura molin, 1860, subulura novomexicanus, collected from the spotted ground squirrel, spermophilus spilosoma bennett, 1833, in new mexico. the males are 24 to 29 mm long, precloacal sucker 1.7-2.0 mm from posterior end, spicules subequal 0.83-1.0 long, and gubernaculum y-shaped 0.21-0.39 mm long. females are 34-39 mm long, vulva near middle of body 14.06-22.00 mm from anterior end, and eggs 0.04-0.05 mm long by 0.03-0.04 mm wide. the new species ... | 2007 | 18163357 |
| a laboratory study of social behaviour of pairs of females during the reproductive season in spermophilus spilosoma and spermophilus mexicanus. | spermophilus spilosoma and spermophilus mexicanus are closely related species with a low degree of sociality. they are sympatric in the bolson de mapimi (chihuahua desert, mexico), where they occupy similar ecological niches. in sciurid rodents, advanced social structures may have evolved through the formation of sedentary female groups. the purpose of this study is to compare the ability of s. spilosoma and s. mexicanus females to cohabit with another conspecific female under space constraints ... | 1996 | 24897437 |
| [variability of cytogenetic characteristics of the spotted ground squirrel guld. 1770]. | females with abnormal karyotype have been found during studies of genetic variability in the spermophilus suslicus application of the methods of differential staining has shown that the chromosome aberration are due to deletions of heterochromatin arms. possible causes of chromosome in the s. suslicus are discussed. | 1996 | 8647426 |
| hibernation in the spotted ground squirrel, spermophilus spilosoma annectens. | | 1973 | 4706254 |