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Resurrection of Dormant Daphnia magna: Protocol and Applications

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La interacción entre el cambio climático y la ecología de las especies impulsa la dinámica macroevolucionaria.

Thomas H G Ezard¹, Tracy Aze, Paul N Pearson

¹Division of Biology, Silwood Park Campus, Imperial College London, Ascot, Berkshire, SL5 7PY, UK. t.ezard@surrey.ac.uk

Science (New York, N.Y.)

|April 16, 2011

Resumen

Las dinámicas macroevolutivas están moldeadas por las especies.

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Área de la Ciencia:

Paleontología Paleontología.
Biología evolutiva Biología evolutiva.
Ciencias del clima Ciencias del clima Ciencias del clima Ciencias del clima

Sus antecedentes:

Las dinámicas macroevolutivas están influenciadas por factores bióticos y abióticos.
La interacción entre el cambio ecológico y el clima en la macroevolución no se entiende completamente.

Objetivo del estudio:

Investigar cómo la ecología de las especies y el cambio climático interactúan para impulsar patrones macroevolutivos.
Para diferenciar los impactos de los factores ecológicos y climáticos en la especiación y los riesgos de extinción.

Principales métodos:

Utilizó el registro fósil del Cenozoico de macroperforados foraminíferos planctónicos.
Analizó la relación entre la ecología de las especies, el cambio climático y las tasas de macroevolución (especiación y extinción).

Principales resultados:

Las dinámicas macroevolutivas están impulsadas por la interacción entre la ecología de las especies y el clima.
La probabilidad de especiación fue más influenciada por la dependencia de la diversidad, mientras que el riesgo de extinción fue más afectado por el cambio climático.
La ecología de ninguna especie fue universalmente óptima en diferentes condiciones ambientales.

Conclusiones:

La estructura ecológica de los conjuntos de especies da forma fundamentalmente a las dinámicas macroevolutivas.
El cambio climático y los factores ecológicos tienen impactos distintos en la especiación y la extinción.
Comprender los rasgos ecológicos de las especies es crucial para predecir los resultados macroevolutivos.