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Ecological States and the Resilience of Coral Reefs Ecology and Society
McClanahan, Tim; Wildlife Conservation Society; crcp@africaonline.co.ke; Polunin, Nicholas; Newcastle University; n.polunin@ncl.ac.uk; Done, Terry; Australian Institute of Marine Science; t.done@aims.gov.au.
We review the evidence for multiple ecological states and the factors that create ecological resilience in coral reef ecosystems. There are natural differences among benthic communities along gradients of water temperature, light, nutrients, and organic matter associated with upwelling-downwelling and onshore-offshore systems. Along gradients from oligotrophy to eutrophy, plant-animal symbioses tend to decrease, and the abundance of algae and heterotrophic suspension feeders and the ratio of organic to inorganic carbon production tend to increase. Human influences such as fishing, increased organic matter and nutrients, sediments, warm water, and transportation of xenobiotics and diseases are common causes of a large number of recently reported ecological...
Tipo: Peer-Reviewed Reports Palavras-chave: Carbon production; Coral reefs; Diseases; Ecological stress; Fishing; Global climate change; Keystone species; Oligotrophy-eutrophy; Resilience; Trophic ecology.
Ano: 2002
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Paternity testing and behavioral ecology: a case study of jaguars (Panthera onca) in Emas National Park, Central Brazil. Repositório Alice
SOARES, T. N.; TELLES, M. P. C.; RESENDE, L. V.; SILVEIRA, L.; JÁCOMO, A. T. A.; MORATO, R. G.; DINIZ-FILHO, J. A. F.; EIZIRIK, E.; BRONDANI, R. P. V.; BRONDANI, C..
We used microsatellite loci to test the paternity of two male jaguars involved in an infanticide event recorded during a long-term monitoring program of this species. Seven microsatellite primers originally developed for domestic cats and previously selected for Panthera oncawere used. In order to deal with uncertainty in the mother?s genotypes for some of the loci, 10000 values of Wwere derived by simulation procedures. The male that killed the two cubs was assigned as the true sire. Although the reasons for this behavior remain obscure, it shows, in principle, a low recognition of paternity and kinship in the species. Since the two cubs were not very young, one possibility is that the adult male did not recognize the cubs and killed them for simple...
Tipo: Artigo de periódico Palavras-chave: Ecological stress; Infanticide; Jaguar; Microsatellites.; Paternity..
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/214576
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Paternity testing and behavioral ecology: a case study of jaguars (Panthera onca) in Emas National Park, Central Brazil Genet. Mol. Biol.
Soares,Thannya Nascimento; Telles,Mariana P.C.; Resende,Lucileide V.; Silveira,Leandro; Jácomo,Anah Tereza A.; Morato,Ronaldo G.; Diniz-Filho,José Alexandre F.; Eizirik,Eduardo; Brondani,Rosana P.V.; Brondani,Claudio.
We used microsatellite loci to test the paternity of two male jaguars involved in an infanticide event recorded during a long-term monitoring program of this species. Seven microsatellite primers originally developed for domestic cats and previously selected for Panthera onca were used. In order to deal with uncertainty in the mother's genotypes for some of the loci, 10000 values of W were derived by simulation procedures. The male that killed the two cubs was assigned as the true sire. Although the reasons for this behavior remain obscure, it shows, in principle, a low recognition of paternity and kinship in the species. Since the two cubs were not very young, one possibility is that the adult male did not recognize the cubs and killed them for simple...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecological stress; Infanticide; Jaguar; Microsatellites; Paternity.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400025
Registros recuperados: 3
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