Results 31 to 40 of about 391 (103)

Rearing Larvae of the Avian Nest Parasite, Philornis downsi (Diptera: Muscidae), on Chicken Blood-Based Diets. [PDF]

J Insect Sci, 2016
Captive rearing of insect pests is necessary to understand their biology and to develop control methods. The avian nest fly, Philornis downsi Dodge and Aitken, is a blood-sucking parasite during its larval stage and a serious threat to endemic birds in ...
Lahuatte PF, Lincango MP, Heimpel GE, Causton CE.   +3 more
europepmc   +2 more sources

Life‐stage and sex influence Philornis ectoparasitism in a Neotropical woodpecker Melanerpes striatus with essential male parental care

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

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
wiley   +1 more source

Experimental demonstration of the fitness consequences of an introduced parasite of Darwin's finches. [PDF]

PLoS ONE, 2011
Introduced parasites are a particular threat to small populations of hosts living on islands because extinction can occur before hosts have a chance to evolve effective defenses.
Jennifer A H Koop, Sarah K Huber, Sean M Laverty, Dale H Clayton   +3 more
doaj   +1 more source

Specificity within bird–parasite–parasitoid food webs: A novel approach for evaluating potential biological control agents of the avian vampire fly

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, Charlotte E. Causton, George A. Gutierrez, Denis A. Mosquera, Paolo Piedrahita, George E. Heimpel   +5 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, Jeb P Owen, Jennifer A H Koop, Marisa O King, Peter R Grant, B Rosemary Grant, Dale H Clayton   +6 more
doaj   +1 more source

Functional traits and foraging behaviour: Avian vampire fly larvae change the beak and fitness of their Darwin's finch hosts

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, Diane Colombelli‐Négrel, Lauren K. Common, Jody A. O'Connor, Katharina J. Peters, Andrew C. Katsis, Rachael Y. Dudaniec, Frank J. Sulloway, Nicolas M. Adreani   +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, Andrew F. Russell, Jaime Chaves, Camille Bonneaud   +3 more
wiley   +1 more source

Darwin’s finches habitually anoint their feathers with leaves of the endemic tree Psidium galapageium during the non‐breeding season

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, Timo Schwemhofer, Barbara Fischer, Courtney Pike   +3 more
wiley   +1 more source

Behavioural response to songs between genetically diverged allopatric populations of Darwin’s small tree finch in the Galápagos

Journal of Evolutionary Biology, Volume 34, Issue 5, Page 816-829, May 2021., 2021
Male song can signal species identity and male quality, and behavioural response to song can drive divergence or introgression. In this study, we describe clear differences in male song types and a weak signal of population genetic difference across two populations of small tree finch on two Galapagos Islands. Resident males responded to the song of an
Diane Colombelli‐Négrel, Sonia Kleindorfer   +1 more
wiley   +1 more source