Results 21 to 30 of about 468 (146)

Genomic Introgression Between Critically Endangered and Stable Species of Darwin's Tree Finches on the Galapagos Islands. [PDF]

Evol Appl
ABSTRACT 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, Yadav S, Catchen J, Kleindorfer S.   +3 more
europepmc   +2 more sources

The invasive parasitic fly Philornis downsi is threatening Little Vermilion Flycatchers on the Galápagos Islands [PDF]

Avian Conservation and Ecology, 2022
Populations of several species of birds endemic to the Galápagos Islands have declined during recent decades, including endemic Little Vermilion Flycatchers (Pyrocephalus nanus). Understanding the reasons for the low breeding success of this species is a
Denis Mosquera, Birgit Fessl, David Anchundia, Eileen Heyer, Celina Leuba, Erwin Nemeth, Maria Lorena. Rojas, Christian Sevilla, Sabine Tebbich   +8 more
doaj   +4 more sources

Optimizing Risk Management Strategies for the Control of Philornis downsi—A Threat to Birds in the Galápagos Islands [PDF]

Frontiers in Conservation Science, 2021
One of the most concerning threats to Galápagos bird populations, including some critically endangered species, is the invasive parasitic fly Philornis downsi.
Irene Bueno, Randall S. Singer, Charles Yoe, Rees Parrish, Dominic A. Travis, Julia B. Ponder, Julia B. Ponder   +6 more
doaj   +3 more sources

From dispenser to nest: collection of fumigated material repels parasites across behavioural traits in Darwin’s finches [PDF]

BMC Zoology
In the midst of a biodiversity crisis, it is important to conserve diversity at all levels, including species, genetic, and behavioural diversity. Animals with different behavioural traits can interact with their environment in distinct ways; hence, the ...
Lauren K. Common, Sonia Kleindorfer, Andrew C. Katsis, Katherine Albán Morales, Dominique M. E. Quirola, Birgit Fessl   +5 more
doaj   +2 more sources

Taxonomic Shifts in Philornis Larval Behaviour and Rapid Changes in Philornis downsi Dodge & Aitken (Diptera: Muscidae): An Invasive Avian Parasite on the Galápagos Islands [PDF]

, 2019
The parasitic larvae of Philornis downsi Dodge & Aitken (Diptera: Muscidae) were first discovered in Darwin’s finch nests on the Galápagos Islands in 1997. Larvae of P.
Colombelli-Négrel, Diane, Common, Lauren K., Dudaniec, Rachael Y., Kleindorfer, Sonia   +3 more
core   +5 more sources

Naris deformation in Darwin’s finches: Experimental and historical evidence for a post-1960s arrival of the parasite Philornis downsi

Global Ecology and Conservation, 2016
The rate of evolution depends on the strength of selection, which may be particularly strong for introduced parasites and their naive hosts. Because natural selection acts on phenotypes and because parasites can alter host phenotype, one fruitful ...
Sonia Kleindorfer, Frank J. Sulloway
doaj   +3 more sources

Temporal and spatial variation in sex-specific abundance of the avian vampire fly (Philornis downsi). [PDF]

Parasitol Res, 2022
AbstractUnderstanding the range and behaviour of an invasive species is critical to identify key habitat areas to focus control efforts. Patterns of range use in parasites can differ temporally, across life stages and between sexes. The invasive avian vampire fly,Philornis downsi, spends the larval stage of its life within bird nests, feeding on ...
Common LK, Sumasgutner P, Sumasgutner SC, Colombelli-Négrel D, Dudaniec RY, Kleindorfer S.   +5 more
europepmc   +6 more sources

The genome sequence of the avian vampire fly (Philornis downsi), an invasive nest parasite of Darwin's finches in Galápagos. [PDF]

G3 (Bethesda), 2022
Abstract The invasive avian vampire fly (Philornis downsi, Diptera: Muscidae) is considered one of the greatest threats to the endemic avifauna of the Galápagos Islands. The fly larvae parasitize nearly every passerine species, including Darwin’s finches. Most P.
Romine MG, Knutie SA, Crow CM, Vaziri GJ, Chaves JA, Koop JAH, Lamichhaney S.   +6 more
europepmc   +5 more sources

Behavior of the Avian Parasite Philornis downsi (Diptera: Muscidae) in and Near Host Nests in the Galapagos Islands. [PDF]

J Insect Behav, 2021
AbstractThe Avian Vampire Fly, Philornis downsi, has invaded the Galapagos Islands, where it causes high mortality of endemic and native landbird species, including most species of Darwin’s finches. Control methods are under development, but key information is missing about the reproductive biology of P.
Pike CL, Ramirez IE, Anchundia DJ, Fessl B, Heimpel GE, Causton CE.   +5 more
europepmc   +5 more sources

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 the Galapagos Islands where it is considered invasive. In order to procure large numbers of flies for
Lahuatte PF, Lincango MP, Heimpel GE, Causton CE.   +3 more
europepmc   +4 more sources