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Abstract:  Although there are many indicators of endangerment (i.e., whether populations or species meet criteria that justify conservation action), their reliability has rarely been tested. Such indicators may fail to identify that a... more
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Abstract: The Galápagos Islands harbor some of the least impacted marine ecosystems in the tropics Efectos de la Pesca Artesanal en Comunidades Marinas en las Islas Galápagos Resumen: Las Islas Galápagos albergan algunos de los... more
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The relationship between Fisher's fundamental theorem of natural selection and the ecological environment of density regulation is examined. Using a linear model, it is shown that the theorem holds when density regulation is caused by... more
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The SO4= toxicity in gypsiferous soils, which represent more than 100 million hectares worldwide, constitutes one of the major problems limiting world agricultural output. Currently, phytoremediation of SO4= is regarded, from agricultural... more
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We tested the hypothesis that the El Niño Southern Oscillation influences forest-wide fruit production, which, in turn, limits frugivorous and granivorous mammals on Barro Colorado Island (BCI), Panama. Observations of BCI mammals have... more
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