| testing hypotheses of pleistocene population history using coalescent simulations: phylogeography of the pygmy nuthatch (sitta pygmaea). | in this paper, we use mitochondrial nadh dehydrogenase subunit 2 sequences to test pleistocene refugial hypotheses for the pygmy nuthatch (sitta pygmaea). pygmy nuthatches are a common resident of long-needle pine forests in western north america and demonstrate a particular affinity with ponderosa pine (pinus ponderosa). palaeoecological and genetic data indicate that ponderosa pine was isolated in two pleistocene refugia corresponding to areas in the southern sierra nevada in the west and sout ... | 2006 | 17015345 |
| quantifying the multi-scale response of avifauna to prescribed fire experiments in the southwest united states. | landscape-scale disturbance events, including ecological restoration and fuel reduction activities, can modify habitat and affect relationships between species and their environment. to reduce the risk of uncharacteristic stand-replacing fires in the southwestern united states, land managers are implementing restoration and fuels treatments (e.g., mechanical thinning, prescribed fire) in progressively larger stands of dry, lower elevation ponderosa pine (pinus ponderosa) forest. we used a before ... | 2009 | 19425425 |
| a review of the subfamily harpypalpinae fain, 1972 (acariformes: harpirhynchidae)--parasites of passerine birds. | the subfamily harpypalpinae fain, 1972 (acariformes: cheyletoidea: harpirhynchidae) is revised. diagnoses of the subfamily and its two constituent genera, harpypalpus dubinin, 1957 and harpypalpoides lombert and moss, 1979, and keys to females of all known species are provided. data on harpypalpine hosts and distribution are summarized, and nine new species are described: harpypalpus lonchura sp. nov. from lonchura castaneothorax (gould) (estrildidae) in australia, harpypalpus pyrrhula sp. nov. ... | 2014 | 25283118 |