نتایج جستجو برای: caves
تعداد نتایج: 2604 فیلتر نتایج به سال:
Keratinous horn sheaths of the extinct Harrington's mountain goat, Oreamnos harringtoni, were recovered at or near the surface of dry caves of the Grand Canyon, Arizona. Twenty-three separate specimens from two caves were dated nondestructively by the tandem accelerator mass spectrometer (TAMS). Both the TAMS and the conventional dates indicate that Harrington's mountain goat occupied the Grand...
Two new species of the arachnid order Schizomida, Rowlandius ubajara sp.nov. and Rowlandius potiguar sp.nov., are described based on both male and female specimens collected in caves from northeastern Brazil. Rowlandius ubajara is known only from the Ubajara Cave, in the state of Ceará; R. potiguar is recorded from 20 caves of the Apodi Limestone Group, in the state of Rio Grande do Norte. A re...
The Northern Long-eared Myotis (Myotis septentrionalis) is known to hibernate in mines and caves, often using cracks within these hibernacula as roost sites. We hypothesized that M. septentrionalis might use deep cracks in rock outcrops for hibernation as well. To test this hypothesis, we placed acoustical bat detectors near rock outcrops away from any known mines or caves during winter in Nebr...
Four new species of the large oriental genus Eutrichodesmus Silvestri, 1910 are described from caves in southern China: E. digitatus sp. n. (Guangdong), E. simplex sp. n. (Jiangxi), E. spinatus sp. n. (Hunan) and E. planatus sp. n. (Guangxi).
Groups of female greater horseshoe bats share more than just caves. A long-term study has revealed that female relatives share males as well, but the adaptive significance of this family-wide mate fidelity remains obscure.
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