Results 121 to 130 of about 74,533 (314)
Penguins and purse-seiners : competition or co-existence?
Bibliography: leaves 110-124.The relationships between the pelagic purse-seine fishery and Jackass penguins (Spheniscus demersus) were investigated at Saldanha Bay, on the south-western coast of South Africa, between December 1982 and August 1983.
Broni, Stephen Christopher
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Bird communities and vegetation on Swedish wet meadows [PDF]
Wet meadows in Sweden currently depend on management by grazing to maintain habitats for various breeding and migrating birds. However, due to ceased cattle farming management by mowing could be an option for restoration and conservation of wet meadows ...
Gustafson, Tomas
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Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
Census of breeding birds in the Pyrenees in the early 1980s: A publicly available dataset for ecological research. [PDF]
Génard M, Lescourret F.
europepmc +1 more source
The density and diversity of birds on farmland in West Africa
The area of land farmed in Africa is predicted to double by the year 2050 yet very few African studies have investigated the impact of different farming intensities and regimes on bird communities. This study examined avian species richness and diversity
Hulme, Mark F.
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Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille +6 more
wiley +1 more source
GABB: A global dataset of alpine breeding birds and their ecological traits. [PDF]
de Zwaan DR +20 more
europepmc +1 more source
Factors influencing the timing of breeding in a range expanding raptor at two spatial scales
Includes abstract.Includes bibliographical references.Range shifts and expansions have been recorded in a number of species and it is expected that as climate change proceeds it will result in more species joining this trend.
Sebele, Lovelater
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From fields to landscapes [PDF]
Farmland biodiversity has declined because of agricultural intensification. Agri-environment schemes (AESs) seem to have limited effect in stopping and reversing declines. Reasons for this lack of effect could be: (1) failure to target important habitats,
Hiron, Matthew
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Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley +1 more source

