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Patrones de diversidad vegetal en bosques secos neotropicos y sus implicaciones para la conservación

, Karina Banda-R¹, Alfonso Delgado-Salinas²

¹Royal Botanic Garden Edinburgh, 20a Inverleith Row, EH3 5LR, Edinburgh, UK. Fundación Ecosistemas Secos de Colombia, Calle 5 A No. 70 C-31, Bogotá, Colombia.

Science (New York, N.Y.)

|October 7, 2016

Resumen

Los bosques secos tropicales en América Latina están muy amenazados, con menos del 10% restante. La alta rotación de especies vegetales sugiere que se necesitan muchas áreas de conservación para proteger los diversos ecosistemas de bosques secos tropicales.

Área de la Ciencia:

Ecología
Botánica
Ciencias de la conservación

Sus antecedentes:

Los bosques tropicales secos estacionales (STDF) son ecosistemas en peligro crítico en América Latina y el Caribe.
Menos del 10% de la extensión original de STDF permanece en muchas regiones, lo que pone de relieve las necesidades urgentes de conservación.

Objetivo del estudio:

Evaluar la diversidad florística y la rotación de especies de plantas leñosas en los bosques tropicales secos estacionales neotrópicos.
Proporcionar una base científica para priorizar los esfuerzos de conservación en diversas regiones STDF.

Principales métodos:

Análisis de 835 inventarios de vegetación que incluyen 4660 especies de plantas leñosas.
Evaluación estadística de la composición florística y el volumen de negocios en diferentes inventarios y regiones geográficas.

Principales resultados:

Se observó una importante rotación florística entre los inventarios y las regiones dentro de los STDF.
La rotación florística en los STDF puede exceder la de otros biomas neotrópicos como las sabanas.

Conclusiones:

La alta rotación florística requiere una red de numerosas áreas de conservación geográficamente distribuidas para proteger la biodiversidad de STDF.
Los resultados ofrecen un marco para que los responsables nacionales de la toma de decisiones comprendan la importancia regional y continental de su flora de bosques secos.

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