Background The primary objective of this study is to reconstruct the phylogeny of the hentzi
species group and sister species in the North American tarantula genus, Aphonopelma …

Aim Geological barriers within a species range play a key role in shaping patterns of genetic
variation by restricting gene flow. Mountain ranges are particularly imposing barriers …

The gray fox (Urocyon cinereoargenteus) lineage diverged from all other extant canids at
their most basal node and is restricted to the Americas. Previous mitochondrial analysis from …

Establishing if species contractions were the result of natural phenomena or human induced
landscape changes is essential for managing natural populations. Fishers (Martes pennant …

Phylogeography of California examines the evolution of a variety of taxaÑancient and
recent, native and migratoryÑto elucidate evolutionary events both major and minor that …

Background The glaciation cycles that occurred throughout the Pleistocene in western North
America caused frequent shifts in species' ranges with important implications for models of …

We report here the successful assembly of the complete mitochondrial genomes of the
northern spotted owl (Strix occidentalis caurina) and the barred owl (S. varia). We utilized …

Partial separation of a peripheral population may lead to its divergence and, potentially,
speciation due to genetic drift followed by selection and geographic isolation. This process …

This beautifully illustrated and user-friendly book presents the most up-to-date information
available about the natural histories of birds of the Sierra Nevada, the origins of their names …

Recent observed changes in bird distributions provide an unprecedented opportunity to gain
a deeper understanding of the processes that influence species' persistence. By modelling …