| two new species and new records of nasal mites of the genus sternostoma (acarina: rhinonyssinae) from birds in texas. | two new species and new host and locality records are established for nasal mites of the genus sternostoma from birds in texas. sternostoma tracheacolum lawrence is reported for the first time from pipilo fuscus and pyrrhuloxia sinuata, respectively. additionally, a new host record for sternostoma porteri hyland from centurus aurifrons and a new locality record for sternostoma pirangae pence from piranga rubra are established. a redescription is provided for sternostoma augei amaral from speotyt ... | 1975 | 1127568 |
| arsenic and lead contamination in soil and in feathers of three resident passerine species in a semi-arid mining region of the mexican plateau. | the current study aimed at quantifying arsenic and lead in feathers from three passerine species that are residents from areas exposed to mining activities (toxostoma curvirostre, campylorhynchus brunneicapillus, and melozone fusca). lead and as contents in bird feathers and in superficial soil samples were measured with aas. levels of these metals were compared between sites exposed and unexposed to mining. possible correlations of as and pb between superficial soil and bird feathers were also ... | 2016 | 27220419 |
| molecular phylogenetics of the avian genus pipilo and a biogeographic argument for taxonomic uncertainty. | we sequenced 1709 base pairs (bp) of mitochondrial dna including parts of cytochrome b, nd 2, and the control region (cr i, ii) for seven members of the avian genus pipilo (towhees), melozone kieneri (rusty-crowned ground-sparrow), and arremonops rufivirgatus (olive sparrow). a total of 457 bp was variable and 257 bp were potentially phylogenetically informative. all gene regions were similarly variable (20.2 to 28.4%) except for cr ii (38.4%); third position transitions were as common as substi ... | 1998 | 9878230 |