HABITAT DEPENDENT POLLINATION SUCCESS IN A CAPE ORCHID

被引：42

作者：

JOHNSON, SD

BOND, WJ

机构：

[1] Department of Botany, University of Cape Town, Rondebosch

来源：

OECOLOGIA | 1992年 / 91卷 / 03期

关键词：

ORCHIDACEAE; SATYRIDAE; HABITAT SELECTION; POLLINATION; FRUIT SET;

D O I：

10.1007/BF00317637

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

We examined the pollination success of Disa uniflora (Orchidaceae) in two habitats. Plants occurring in a rocky gorge were far more successful than plants occurring in an adjacent open valley. More than 55% of flowers in the gorge were pollinated and set fruit compared with less than 25% of flowers in the valley. These differences are explained by the preference of Meneris tulbaghia (Satyridae), the exclusive pollinator of the orchid, for rocky, sheltered habitats. Fruit set of hand-pollinated flowers did not differ significantly between the two habitats, indicating that resources did not account for the variation in fruiting success.

引用

页码：455 / 456

页数：2

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