Results 21 to 30 of about 236 (162)
Ibis, Volume 165, Issue 4, Page 1235-1250, October 2023., 2023 The nestlings of many Neotropical bird species suffer from Philornis (Diptera: Muscidae) ectoparasitism. Although nestlings are typically considered the intended targets, recent work indicates that Philornis infest adult birds more frequently than previously appreciated, yet few studies have concurrently surveyed nestlings and adults for Philornis in ...
Joshua B. LaPergola
wiley +1 more source
Genomic Introgression Between Critically Endangered and Stable Species of Darwin's Tree Finches on the Galapagos Islands. [PDF]
Evol ApplABSTRACT Natural hybridisation among rare or endangered species and stable congenerics is increasingly topical for the conservation of species‐level diversity under anthropogenic impacts. Evidence for beneficial genes being introgressed into or selected for in hybrids raises concurrent questions about its evolutionary significance.
Dudaniec RY +3 more
europepmc +2 more sources
Feather function and the evolution of birds
Biological Reviews, Volume 98, Issue 2, Page 540-566, April 2023., 2023 ABSTRACT The ability of feathers to perform many functions either simultaneously or at different times throughout the year or life of a bird is integral to the evolutionary history of birds. Many studies focus on single functions of feathers, but any given feather performs many functions over its lifetime. These functions necessarily interact with each
Ryan S. Terrill, Allison J. Shultz
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Journal of Applied Ecology, Volume 59, Issue 8, Page 2189-2198, August 2022., 2022 Our results confirm previous laboratory studies indicating specificity by Conura annulifera and support the hypothesis that this species would produce few, if any, nontarget impacts if released into Galapagos to suppress populations of the Philornis downsi.
Ismael E. Ramirez +5 more
wiley +1 more source
Occurrence of Philornis bella Couri in nestlings of Tyrannus melancholicus Vieillot (Tyranninae) in the municipal district of Seropédica, Rio de Janeiro [PDF]
Biotemas, 2011 Five nestlings of Tyrannus melancholicus Vieillot, 1819, between nine (n = 2) and twelve days (n = 3) old, were studied from July to September in 2006. A total of 43 larvae was collected, of which 33 (76%) became adults and were identified as Philornis ...
Hermes Ribeiro Luz +5 more
doaj +3 more sources
Functional Ecology, Volume 36, Issue 7, Page 1806-1817, July 2022., 2022 Read the free Plain Language Summary for this article on the Journal blog. Abstract The avian beak is a key morphological trait used for foraging. If parasites alter beak shape, we may expect changes in host foraging behaviour. Larvae of the avian vampire fly Philornis downsi cause naris enlargement in Darwin's finch nestlings when first and second ...
Sonia Kleindorfer +8 more
wiley +1 more source
Avian disease surveillance on the island of San Cristóbal, Galápagos
Ecology and Evolution, Volume 11, Issue 24, Page 18422-18433, December 2021., 2021 In the Galápagos archipelago, two important wildlife diseases, avian pox (Avipoxvirus spp.) and avian malaria (Plasmodium spp. and related Haemosporidia), challenge endemic species. We find avian pox prevalence differs significantly with prevailing climate, being highest during El Niño events (~11% in 2016 and in 2019 versus <1% in the La Niña year of ...
Joshua G. Lynton‐Jenkins +3 more
wiley +1 more source
Ethology, Volume 127, Issue 10, Page 914-924, October 2021., 2021 Our study revealed that four species of Darwin's finches habitually anoint their feathers with leaves of the endemic tree Psidium galapageium, which contain volatiles with anti‐parasitic properties. We observed anointing most frequently in the morning when leaves are still wet and probably omit more volatiles.
Sabine Tebbich +3 more
wiley +1 more source
Ecoimmunity in Darwin's finches: invasive parasites trigger acquired immunity in the medium ground finch (Geospiza fortis). [PDF]
PLoS ONE, 2010 BACKGROUND: Invasive parasites are a major threat to island populations of animals. Darwin's finches of the Galápagos Islands are under attack by introduced pox virus (Poxvirus avium) and nest flies (Philornis downsi).
Sarah K Huber +6 more
doaj +1 more source
Urban living influences the nesting success of Darwin’s finches in the Galápagos Islands
Ecology and Evolution, Volume 11, Issue 10, Page 5038-5048, May 2021., 2021 Urbanization is expanding worldwide with major consequences for organisms, understanding the trade‐offs of urbanization is of critical importance, particularly in environments with unreliable annual natural food availability, such as the Galápagos Islands.
Johanna A. Harvey +5 more
wiley +1 more source