| migratory timing, rate, routes and wintering areas of white-crested elaenia (elaenia albiceps chilensis), a key seed disperser for patagonian forest regeneration. | migratory animals often play key ecological roles within the communities they visit throughout their annual journeys. as a consequence of the links between biomes mediated by migrants, changes in one biome could affect remote areas in unpredictable ways. migratory routes and timing of most neotropical austral migrants, which breed at south temperate latitudes of south america and overwinter closer to or within tropical latitudes of south america, have yet to be described in detail. as a result, ... | 2017 | 28182628 |
| gastrointestinal and external parasites of the white-crested elaenia elaenia albiceps chilensis (aves, tyrannidae) in chile. | the objective of this study is to evaluate the ectoparasites and helminths of the white-crested elaenia, elaenia albiceps chilensis. feather mites anisophyllodes elaeniae, trouessartia elaeniae, and analges sp. were detected in 51% of birds (n=106), whereas 24% were infected with lice (tyranniphilopterus delicatulus, menacanthus cfr. distinctus, and ricinus cfr. invadens). helminths viguiera sp. and capillaria sp. were found in five of the birds that were necropsied (n=20). with the exception of ... | 2015 | 26444059 |
| two new and two redescribed species of anonchotaenia (cestoda: paruterinidae) from south american birds. | morphological examination of novel specimens of paruterinid cestodes from passerine birds from brazil and chile and of museum specimens from paraguay revealed two new species: anonchotaenia prolixa sp. n. from elaenia albiceps chilensis hellmayr from chile, and anonchotaenia vaslata sp. n. from tyrannus melancholicus (vieillot) (type host) and myiodynastes maculatus (statius muller) from paraguay. the generic diagnosis of anonchotaenia conn, 1900 is amended, prompted by the presence of the armed ... | 2014 | 25549500 |