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Patrones globales de biodiversidad del fitoplancton marino y el zooplancton
Xabier Irigoien1, Jef Huisman, Roger P Harris
1AZTI, Arrantza eta Elikaigintzarako Institutu Teknologikoa, Herrera Kaia portualdea, 20110 Pasaia, Spain. xirigoien@pas.azti.es
Nature
|June 25, 2004
Resumen
La diversidad del plancton marino, al igual que las plantas terrestres, alcanza su pico en la biomasa intermedia. La diversidad de fitoplancton y zooplancton mostró una independencia inesperada, sin embargo, los patrones se mantuvieron globalmente consistentes.
Área de la Ciencia:
- Biología Marina Biología Marina.
- Oceanografía La oceanografía es la oceanografía.
- Ecología Ecología Ecología.
Sus antecedentes:
- Comprensión limitada de la biodiversidad del plancton marino en comparación con los ecosistemas terrestres.
- Los océanos cubren el 70% de la Tierra, sin embargo, los patrones de diversidad del plancton siguen siendo en gran parte inexplorados.
- Los patrones de biodiversidad de plantas y herbívoros terrestres están bien documentados.
Objetivo del estudio:
- Presentar datos globales de biodiversidad para los conjuntos de plancton marino.
- Para investigar las relaciones entre la biomasa del plancton y la diversidad.
- Para comparar los patrones de biodiversidad del plancton marino con los sistemas terrestres.
Principales métodos:
- Análisis de los datos de ensamblaje de plancton marino de diversas regiones oceánicas globales.
- Examen estadístico de los patrones de diversidad en relación con la biomasa.
- Análisis comparativo entre la diversidad de fitoplancton y zooplancton.
Principales resultados:
- La diversidad del fitoplancton marino sigue un patrón unimodal con la biomasa, alcanzando su punto máximo en niveles intermedios.
- La diversidad máxima de fitoplancton ocurre en la biomasa intermedia; la diversidad mínima se observa durante las flores.
- No se encontró una relación directa entre la diversidad de fitoplancton y la diversidad de zooplancton.
- La diversidad de zooplancton también exhibe una función unimodal de la biomasa de zooplancton.
- Se observaron patrones globales notablemente consistentes en la biodiversidad del plancton marino en diferentes regiones oceanográficas.
Conclusiones:
- Los patrones de biodiversidad del plancton marino exhiben una consistencia mundial, independientemente de las variaciones ambientales.
- Los hallazgos sugieren un potencial punto de referencia universal para comprender la biodiversidad global de plantas y herbívoros.
- El estudio destaca la importancia de la biomasa en la estructuración de las comunidades de plancton marino.
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