Collectanea Botanica, Vol 28 (2009)

Una aproximación al conocimiento de la flora más amenazada de China


https://doi.org/10.3989/collectbot.2008.v28.004

J. López-Pujol
Botanic Institute of Barcelona (CSIC-ICUB), España

Z. Y. Zhang
Laboratory of Subtropical Biodiversity, Jiangxi Agricultural University, China

Resumen


China posee una gran diversidad de especies vegetales, tanto en lo que se refiere al número total de taxones como a la cantidad de endemismos. Sin embargo, una parte significativa de esta diversidad (hasta un 20% de la flora autóctona) está amenazada en algún grado. Una cantidad apreciable aunque todavía indeterminada de taxones se encuentra en una situación de extremo riesgo debido a su escaso número de efectivos, a menudo inferior al centenar. Se han seleccionado 20 taxones como muestra representativa de esta flora en situación muy crítica, de los que se proporciona información sobre su área de distribución, tamaño poblacional, amenazas, medidas de conservación adoptadas, estatus legal y categoría de amenaza (de acuerdo con los criterios de la UICN). La rareza extrema de estos taxones puede relacionarse con su historia evolutiva (por su condición de paleo- o neoendemismos) y/o con la actuación humana (principalmente destrucción de hábitats y sobreexplotación).

Palabras clave


amenazada; conservación; endemismo; especies vegetales; rara

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