منابع مشابه
Phylogeography of the prehensile-tailed skink Corucia zebrata on the Solomon Archipelago
The biogeography of islands is often strongly influenced by prior geological events. Corucia zebrata (Squamata: Scincidae) is endemic to the geologically complex Solomon Archipelago in Northern Melanesia. We examined the level of divergence for different island populations of C. zebrata and discussed these patterns in light of Pleistocene land bridges, island isolation, and island age. Corucia ...
متن کاملA minimally invasive method for gender determination in the prehensile-tailed porcupine (Coendou prehensilis).
Prehensile-tailed porcupines (Coendou prehensilis), like other rodents, lack external sexual traits, making it difficult to non-invasively determine their gender. By exploiting genetic differences between the X and the Y chromosome, we developed a simple genetic test to determine the gender of Coendous from shed quills. We Sanger sequenced a short portion (195 bp) of the zinc finger protein gen...
متن کاملThe Evolution of the Primate Prehensile Tail
The evolution of the prehensile tail illustrates the impact habitat can have on structural traits. Prehensile primates are able to support their entire body weight using only their tail, which opens up new feeding opportunities in their arboreal environments. This trait evolved separately in two families of New World monkeys. A transitional behaviour in its proposed evolutionary mechanism is ta...
متن کاملMolecular Detection of Vertebrates in Stream Water: A Demonstration Using Rocky Mountain Tailed Frogs and Idaho Giant Salamanders
Stream ecosystems harbor many secretive and imperiled species, and studies of vertebrates in these systems face the challenges of relatively low detection rates and high costs. Environmental DNA (eDNA) has recently been confirmed as a sensitive and efficient tool for documenting aquatic vertebrates in wetlands and in a large river and canal system. However, it was unclear whether this tool coul...
متن کاملOn Recognizing Individual Salamanders
Recognizing individual salamanders is an important step in assessing their migratory patterns in ecological studies. In this paper, we develop an algorithm that uses distributions of multi-scale differential features to recognize individual salamanders from a database of salamander photographs. In the proposed method, images of salamanders are warped to have straight medial axes and differentia...
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ژورنال
عنوان ژورنال: Science
سال: 1886
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-8.178.13