Results 191 to 200 of about 41,261 (238)
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Decline of the North American avifauna

Science, 2019
Staggering decline of bird populations Because birds are conspicuous and easy to identify and count, reliable records of their occurrence have been gathered over many decades in many parts of the world. Drawing on such data for North America, Rosenberg et al.
Kenneth V. Rosenberg   +10 more
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Threats to Avifauna on Oceanic Islands

Conservation Biology, 2006
Abstract:  Results of the study by of avifauna on oceanic islands suggest that distance from the mainland and time since European colonization have major influences on species extinctions and that island area is a significant but secondary contributing factor. After augmenting the data of the
Heather S, Trevino   +3 more
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Avifauna aesthetica

2021
Vögel in Kunst und Literatur - spannende Begegnungen. Ob es sich beim Gesang der Vögel um eine Form von »Naturmusik« oder gar um eine Sprache handelt, wird aktuell in verschiedenen naturtheoretischen, philosophischen, zoomusikologischen und von den animal studies inspirierten Kontexten diskutiert.
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Enhancing Avifauna in Commercial Plantations

Conservation Biology, 2010
Abstract:  The occurrence of fauna in commercial plantations is often associated with structural complexity. Through a meta‐analysis, we tested whether the structural complexity of plantations could enhance bird species assemblages and whether bird assemblages respond differently depending on taxonomic ...
Nájera, Andrea   +1 more
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The Nomadic Avifauna

2004
Hyper-arid, arid and semi-arid ecosystems are characterised by low and unpredictable annual rainfall (Noy-Meir 1973), and by marked variability of all communities in time and space (Polis 1991). Resource peaks are unpredictable in time and space, and unpredictable in quality and quantity.
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The Avifauna of the Kerguelen Islands

Emu - Austral Ornithology, 1989
The status of the 35 bird species breeding on the Kerguelen Islands in the south-western Indian Ocean is reviewed in view of recent discoveries and censuses made between 1984 and 1987. Aspects of the breeding biology of most of the species are described, together with weights and measures for 17 species for which data were previously scarce or ...
Henri Weimerskirch   +2 more
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Pleistocene Avifaunas and the Overkill Hypothesis

Science, 1977
At the end of the North American Pleistocene, birds and mammals suffered comparable degrees of generic extinction. Both the magnitude and pattern of avian extinction are incompatible with the hypothesis that humans played a major role in causing the demise of numerous North American mammalian genera at this time.
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Density compensation in island avifaunas

Oecologia, 1980
This paper analyzes factors which determine the extent of density compensation on islands; i.e., is the summed population density of all species on an island equal to the summed mainland density? A graphical analysis allows quantitative comparisons of density compensation studies.
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Additions to the Avifauna of Honduras

The Auk, 1983
Abstract I report specimens and sight records of 15 species new to Honduras: Mesembrinibis cayennensis, Falco femoralis, Anous minutus, Ara ambigua, Chalybura urochrysia, Baryphthengus martii, Myrmeciza exsul, Hylopezus perspicillatus, Conopias parva, Lophotriccus pileatus, Dacnis cayana, Vermivora ruficapilla, Tachyphonus delatrii ...
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The Origin of the Avifauna of the Bahamas

The American Naturalist, 1891
0 far as the relationships of the islands themselves are con-cerned the Bahaman group offers from the zoological standpoint an apparently simple case. As a coral formation arising from the Bahaman banks we may regard them as oceanic and ofindependent origin.
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