Results 21 to 30 of about 8,145 (240)

Evolution of both host resistance and tolerance to an emerging bacterial pathogen

Evolution Letters, 2019
Understanding how hosts minimize the cost of emerging infections has fundamental implications for epidemiological dynamics and the evolution of pathogen virulence.
Camille Bonneaud, Luc Tardy, Mathieu Giraudeau, Geoffrey E. Hill, Kevin J. McGraw, Alastair J. Wilson   +5 more
doaj   +1 more source

Olfactory sex preferences in six Estrildid Finch species

Frontiers in Ecology and Evolution, 2023
Avian courtship behaviour is essential to attract potential mating partners. Courtship behaviours can involve displays of different sensory modes. Sex discrimination is a crucial step and in many bird species, sexes differ in acoustic and visual traits ...
E. Tobias Krause, E. Tobias Krause, Madeleine Paul, Oliver Krüger, Barbara A. Caspers   +4 more
doaj   +1 more source

Ontogeny of adaptive antibody response to a model antigen in captive altricial zebra finches. [PDF]

PLoS ONE, 2012
Based on studies from the poultry literature, all birds are hypothesized to require at least 4 weeks to develop circulating mature B-cell lineages that express functionally different immunoglobulin specificities. However, many altricial passerines fledge
Tess L Killpack, William H Karasov
doaj   +1 more source

Breeding experience, alternative reproductive strategies and reproductive success in a captive colony of zebra finches (Taeniopygia guttata).

PLoS ONE, 2014
Birds exhibit a remarkable diversity of different reproductive strategies both between and within species. Species such as the zebra finch (Taeniopygia guttata) may evolve the flexible use of alternative reproductive strategies, as well as benefit from ...
Nicole M Baran, Elizabeth Adkins-Regan
doaj   +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

Quantifying rosy-finch migration with stable hydrogen isotope feather markers highlights the need for inter-state collaboration to reach conservation goals

Avian Conservation and Ecology
The Black Rosy-Finch Leucosticte atrata is a species of conservation concern because their alpine breeding habitat is threatened by climate change and their population size is relatively small.
Caitlin J. Campbell, Janice H. Gardner, Clark S Rushing, Cooper M. Farr, Russell Norvell, Kim Savides   +5 more
doaj   +1 more source

Zebra finch (Taeniopygia guttata) shift toward aerodynamically efficient flight kinematics in response to an artificial load

Biology Open, 2019
We investigated the effect of an added mass emulating a transmitter on the flight kinematics of zebra finches (Taeniopygia guttata), both to identify proximal effects of loading and to test fundamental questions regarding the intermittent flight of this ...
Anthony B. Lapsansky, Jennifer A. Igo, Bret W. Tobalske   +2 more
doaj   +1 more source

Darwin's enduring finches [PDF]

Current Biology, 2010
SummarySmall, unassuming birds in the Galápagos islands proved to be a linchpin in Darwin's theory of evolution by natural selection and they are still a source of new insights for researchers. Nigel Williams reports.
openaire   +2 more sources

Differing House Finch Cytokine Expression Responses to Original and Evolved Isolates of Mycoplasma gallisepticum

Frontiers in Immunology, 2018
The recent emergence of the poultry bacterial pathogen Mycoplasma gallisepticum (MG) in free-living house finches (Haemorhous mexicanus), which causes mycoplasmal conjunctivitis in this passerine bird species, resulted in a rapid coevolutionary arms-race
Michal Vinkler, Ariel E. Leon, Laila Kirkpatrick, Rami A. Dalloul, Dana M. Hawley   +4 more
doaj   +1 more source

Castration modulates singing patterns and electrophysiological properties of RA projection neurons in adult male zebra finches [PDF]

PeerJ, 2014
Castration can change levels of plasma testosterone. Androgens such as testosterone play an important role in stabilizing birdsong. The robust nucleus of the arcopallium (RA) is an important premotor nucleus critical for singing.
Songhua Wang, Congshu Liao, Fengling Li, Shaoyi Liu, Wei Meng, Dongfeng Li   +5 more
doaj   +2 more sources