| feeding preferences of the immature stages of three western north american ixodid ticks (acari) for avian, reptilian, or rodent hosts. | larval and nymphal ixodes pacificus cooley and kohls, i. (ixodes) jellisoni cooley and kohls, and dermacentor occidentalis marx were tested for host preference when simultaneously presented with a deer mouse (peromyscus maniculatus wagner), california kangaroo rat (dipodomys californicus merriam), western fence lizard (sceloporus occidentalis baird and girard), and california towhee (pipilo crissalis vigors) in an experimental apparatus. differences were observed in the preferences among the thr ... | 2009 | 19198525 |
| can a solitary avian species use collective detection? an assay in semi-natural conditions. | collective detection (e.g., enhanced predator detection through the vigilance of conspecifics) is expected to have evolved particularly in social species. however, we assessed the degree to which an avian territorial species (california towhee pipilo crissalis) would use social cues about predation in a semi-natural assay. we also exposed a social species (house finch carpodacus mexicanus) to similar conditions. california towhees increased scanning rates when foraging with conspecifics, whereas ... | 2009 | 19465091 |
| morphological and molecular characterisation of isospora butcherae n. sp. in a silvereye (zosterops lateralis) (latham, 1801). | a new isospora (apicomplexa:eimeriidae) species is described from a silvereye (zosterops lateralis) in western australia. sporulated oocysts of this species are spherical, 24.2 (23.1-25.2) × 23.3 (22.8-23.9) μm, with a shape index (length/width) of 1.02, and with a smooth bi-layered oocyst wall, 1.2 μm thick (outer layer 0.9 μm, inner 0.3 μm). a polar granule is present, but the oocyst residuum and a micropyle are absent. the ovoid-shaped sporocysts are 16.1 (15.7-17.3) × 10.5 (15.7-17.3) μm and ... | 2018 | 29527641 |