Joatilde;o P Barreiros | Author | SciTechnol

Joatilde;o P Barreiros Author

joao.ps.barreiros@uac.pt (+351)295402200

Subjects of specialization
Biodiversity Conservation, Biodiversity Management, Forest Biodiversity�& Conservation, Forest Ecology &�Ecosystem Services, Sustainable Forest Management

Affiliation
CE3C

Biography

CE3C – Centre for Ecology, Evolution and Environmental Changes / Azorean Biodiversity Group and Universidade dos Açores - Faculdade de Ciências Agrárias e do Ambiente, 9700-042 Angra do Heroísmo, Portugal. He has published more than 30 articles, In the field of iodiversity Conservation, Biodiversity Management, Forest Biodiversity & Conservation, Abiotic Stress, Plant Molecular Biology.

Publications

Letter to Editor Subscription

Why Flightless Birds are Condemned to Lay Eggs

Author(s):

João P Barreiros

Birds evolved very fast and are the only vertebrate group that never turned to ovoviviparity. While this is explainable as an evolutionary pressure for feathered flight and reduced size, their fast evolution apparently caused the disappearance of a significant proportion of genes. However posterior evolutionary trends of Aves to become flightless and with increased body sizes were not accompanied by an ‘expected’ turn to ovoviviparity, something known for a number of reptile taxa (e.g. some constrictor serpents). This impossibility is particularly noted in marine flightless birds from which penguins are certainly the best extant example having to endure seasonal extreme energy losses when coming ashore to lay eggs. This same limitation was most c... view more»

DOI: 10.4172/2327-4417.1000172

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