Results 1 to 10 of about 39,040 (293)
Biomass, abundances, and abundance and geographical range size relationship of birds along a rainforest elevational gradient in Papua New Guinea [PDF]
PeerJ, 2020 The usually positive inter-specific relationship between geographical range size and the abundance of local bird populations comes with exceptions. On continents, the majority of these exceptions have been described from tropical montane areas in Africa,
Katerina Sam, Bonny Koane
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Linkage mapping reveals sex-dimorphic map distances in a passerine bird [PDF]
, 2005 Linkage maps are lacking for many highly influential model organisms in evolutionary research, including all passerine birds. Consequently, their full potential as research models is severely hampered.
Bernstein H +13 more
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Fluctuating asymmetry and environmental stress : understanding the role of trait history [PDF]
, 2013 While fluctuating asymmetry (FA; small, random deviations from perfect symmetry in bilaterally symmetrical traits) is widely regarded as a proxy for environmental and genetic stress effects, empirical associations between FA and stress are often weak or ...
Alcantara-Exposito, Angelica +6 more
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Avian malaria is absent in juvenile colonial herons (Ardeidae) but not Culex pipiens mosquitoes in the Camargue, Southern France [PDF]
, 2015 Apicomplexan blood parasites Plasmodium and Haemoproteus (together termed “Avian malaria”) and Leucocytozoon are widespread, diverse vector-transmitted blood parasites of birds, and conditions associated with colonial nesting in herons (Ardeidae) and ...
Gauthier-Clerc, Michel +1 more
core +5 more sources
Avian Conservation and Ecology, 2018 The Worm-eating Warbler (Helmitheros vermivorum) is typically described as a mature forest species requiring moderate to steep slopes and dense understory vegetation for breeding. However, nesting microhabitat characteristics vary regionally.
Patrick J. Ruhl +6 more
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Avian Song Complexity is Associated With High Field Metabolic Rate [PDF]
, 2006 Question: Is the production of bird song costly? Analyses of oxygen consumption during singing provided conflicting results. Data studied: Data on 28 passerine species with quantitative information on song complexity and field metabolic rate, which ...
Garamszegi, László Zsolt +2 more
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DiversityHost range expansions are an important factor for shaping the community of associated symbiotic organisms. Birds, as a highly mobile group of animals, are of particular interest to study with respect to the diversity and the distribution of the organisms
Nevena Kolarova +4 more
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Females prefer extra-pair males that are older and better hunters [PDF]
, 2015 Age of male is an important cue in mate selection, including extra-pair copulations; different phenotypic and behavioural traits are known to be age related. Paternity studies show that older males predominate as fathers of extra-pair young. It
Antczak, Marcin +2 more
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The ‘seet’ danger call: an active nest warning in superb fairy-wrens
Royal Society Open ScienceAlarm calls are a common, widely studied antipredator behaviour, with species producing different call types that can have distinct functions. Here, we describe a new type of alarm call in the superb fairy-wren (Malurus cyaneus), the ‘seet’ danger call ...
Lauren K. Common +4 more
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Fat scoring in four sparrow species as an estimation of body condition: a validation study
Journal of Field Ornithology, 2022 In avian biology, body condition has been positively correlated with survivability, reproduction, migration, and habitat quality. A common method of assessing avian body condition, which typically refers to measures of energy stores, is a qualitative ...
Elizabeth S. Wenker +3 more
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