| helminths of swallows of the mountains of colorado, including acuaria coloradensis n. sp. (nematoda: spirurata). | thirty-three tree swallows, iridoprocne bicolor, and 5 violet-green swallows, tachycineta thalassina, from the eastern slope of the rocky mountains of northern colorado were examined for helminths. six species were found: diplotriaena obtusa, acuaria coloradensis n. sp. (nematoda); vitta magniuncinata, angularella audubonensis (cestoda); plagiorchis maculosus (trematoda); mediorhynchus papillosus (acanthocephala). the new species is most similar to a. multispinosa perez vigueras, 1937, but has 1 ... | 1988 | 3357125 |
| microbial and environmental effects on avian egg viability: do tropical mechanisms act in a temperate environment? | the viability of freshly laid avian eggs declines after several days of exposure to ambient temperatures above physiological zero, and declines occur faster in tropical than temperate ecosystems. microbial infection during preincubation exposure has recently been shown as a second cause of egg viability decline in the tropics, but whether microbial processes influence the viability of wild bird eggs in temperate ecosystems is unknown. we determined the microbial load on eggshells, the incidence ... | 2011 | 21661574 |