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首页> 外文期刊>Conservation Biology >Conservation of vascular epiphyte diversity in Mexican coffee plantations
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Conservation of vascular epiphyte diversity in Mexican coffee plantations

机译：墨西哥咖啡种植园中维管附生植物多样性的保护

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摘要

Coffee plantations have replaced many lower-montane forests in the Neotropics, and ongoing intensification is converting traditional polycultures with a variety of shade trees to plantations with no or monospecific shade trees. To evaluate the impact of coffee cultivation on epiphyte diversity, I surveyed vascular epiphytes on shade trees in nine different coffee plantations and compared records with those in four natural forests in central Veracruz, Mexico. Eighty-nine species occurred in coffee plantations, and 104 species occurred in natural forests. The number of epiphytic species in traditional polycultures with old shade trees, mostly of the genus Inga, was similar to that in forests, but plantations with small trees and sparse shade hosted fewer epiphytes than those with large trees. Epiphyte communities were, however, more homogeneous in coffee plantations than in forests, possibly because of a drier microclimate and the lack of large and long-lived trees. These results demonstrate the value of traditional polycultures for epiphyte diversity, show the importance of conserving large shade trees, and suggest that these coffee systems may not be suitable for all epiphytes.
机译：咖啡种植园已经取代了新热带地区的许多低山林，并且持续的集约化种植正在将具有多种遮荫树的传统多元文化转变为无遮盖树或单种遮荫树的种植园。为了评估咖啡种植对附生植物多样性的影响，我调查了9个不同咖啡种植园的树荫下的维管附生植物，并将记录与墨西哥韦拉克鲁斯中部的四个天然林中的记录进行了比较。咖啡种植园中有89种，天然林中有104种。在传统的混养中，带有老树的树木（主要是印加属）的附生物种的数量与森林中的相似，但是具有小树和稀疏树荫的人工林的附生植物数量少于具有大树的人工林。但是，咖啡种植园的附生植物群落比森林更均匀，这可能是由于小气候更干燥以及缺少大而长寿的树木所致。这些结果证明了传统混养对于附生植物多样性的价值，表明了保护大型荫荫树的重要性，并表明这些咖啡系统可能并不适合所有附生植物。

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