Results 31 to 40 of about 28,562 (249)

Comparison of predation by two suburban cats in New Zealand [PDF]

open access: yes, 2017
To study the effects domestic cats may have on surrounding wildlife, a complete list was made of 558 items caught in the garden or brought into the house by one cat over 17 years, from 1988 to 2005.
Flux, John E.C.
core   +3 more sources

Body size changes in passerine birds introduced to New Zealand from the UK [PDF]

open access: yes, 2013
One feature of global geographic variation in avian body sizes is that they are larger on isolated islands than on continental regions. Therefore, this study aims to assess whether there have been changes in body size following successful establishment ...
Blackburn, Tim M.   +4 more
core   +2 more sources

The Consequences of Polyandry for Sibship Structures, Distributions of Relationships and Relatedness, and Potential for Inbreeding in a Wild Population [PDF]

open access: yes, 2017
We thank the Tsawout and Tseycum First Nations for access to Mandarte Island, Pirmin Nietlisbach, Lukas Keller, Greta Bocedi, Brad Duthie, and Matthew Wolak for helpful discussions, and the European Research Council, National Sciences and Engineering ...
Arcese, Peter   +2 more
core   +2 more sources

Differential introgression and the maintenance of species boundaries in an advanced generation avian hybrid zone [PDF]

open access: yes, 2016
Background: Evolutionary processes, including selection and differential fitness, shape the introgression of genetic material across a hybrid zone, resulting in the exchange of some genes but not others.
Kovach, Adrienne I.   +3 more
core   +4 more sources

Control of annual reproductive cycle in the subtropical house sparrow (Passer domesticus): evidence for conservation of photoperiodic control mechanisms in birds

open access: yesFrontiers in Zoology, 2006
Background In many birds, day length (=photoperiod) regulates reproductive cycle. The photoperiodic environment varies between different seasons and latitudes.
Rani Sangeeta   +2 more
doaj   +1 more source

Diversity, loss, and gain of malaria parasites in a globally invasive bird.

open access: yesPLoS ONE, 2011
Invasive species can displace natives, and thus identifying the traits that make aliens successful is crucial for predicting and preventing biodiversity loss.
Alfonso Marzal   +26 more
doaj   +1 more source

Mitochondrial heteroplasmy in an avian hybrid form (Passer italiae: Aves, Passeriformes) [PDF]

open access: yes, 2019
Mitochondrial heteroplasmy is the result from biparental transmission of mitochondrial DNA (mtDNA) to the offspring. In such rare cases, maternal and paternal mtDNA is present in the same individual.
Giacalone G.   +3 more
core   +1 more source

Human infections associated with wild birds. [PDF]

open access: yes, 2008
IntroductionWild birds and especially migratory species can become long-distance vectors for a wide range of microorganisms. The objective of the current paper is to summarize available literature on pathogens causing human disease that have been ...
Bauchinger, Ulf   +4 more
core   +1 more source

House Sparrow and hybrids with Somali Sparrow in Ethiopia

open access: yesBulletin of the African Bird Club, 2015
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Kai Gedeon   +5 more
openaire   +2 more sources

The direct response of the gonads to cues of stress in a temperate songbird species is season-dependent. [PDF]

open access: yes, 2013
The gonadotropin releasing hormone (GnRH) system in the hypothalamus is often considered the final point in integration of environmental cues as they pertain to the reproductive axis.
Bentley, George   +2 more
core   +2 more sources

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