VARIATION IN MUTUALISMS - THE SPATIO-TEMPORAL MOSAIC OF A POLLINATOR ASSEMBLAGE
VARIATION IN MUTUALISMS - THE SPATIO-TEMPORAL MOSAIC OF A POLLINATOR ASSEMBLAGE
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DOI：
10.1111/j.1095-8312.1988.tb00461.x
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发表时间：
1988-10-01
影响因子：
1.9
通讯作者：
HERRERA, CM
中科院分区：
文献类型：
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作者：
HERRERA, CM
在时间（年度和季节性）和空间（之间和人口内）的变化研究熏衣草（Labiolia），昆虫授粉，夏季开花，万年青灌木地中海林地在西班牙东南部的传粉者组合。熏衣草是授粉有近85种比较长舌的Hytera，双翅目和鳞翅目。传粉昆虫的多样性、组成和丰度在不同年份之间变化显著。鳞翅目类群占主导地位的数字在一年，hyperterans在四年，两组有类似的丰度在其余的亚尔。绝大多数传粉昆虫的平均丰度表现出显着的年度差异。只有35.7%的类群被记录在所有的六个研究年。传粉者组合具有明显的季节动态。物种丰富度、丰度和组成在花期发生了重要变化。latifolia（近3个月）。只有21.7%的昆虫类群发生在整个开花季节。熏衣草种群在不同距离的水道广泛不同的传粉昆虫的丰度和组成。在远离水的网站，而鳞翅目昆虫占主导地位的数量增长在附近的流。只有40.7%的类群记录在所有的四个研究群体。在同一植物种群内，水平距离的顺序为25米导致传粉者组成的显着变化。从L. latifolia，一个时空镶嵌的传粉者。由于这些广泛不同的频率的花粉转移，花粉量的大小沉积，和花间飞行距离模式，时空变化将导致不一致或矛盾的选择压力的植物，从而阻碍专业化的特定授粉。
Variation in time (annual and seasonal) and space (between- and within-population) is examined for the pollinator assemblage of Lavandula latifolia (Labiatae), an insect-pollinated, summer-flowering, evergreen shrub of Mediterranean woodlands in southeastern Spain. Lavandula latifolia is pollinated there by nearly 85 species of comparatively long-tongued Hymenoptera, Diptera and Lepidoptera. The diversity, composition and abundance of pollinators varied markedly between years. Lepidopteran taxa prevailed numerically in one year, hymenopterans in four years and both groups had similar abundance in the remaining yar. The vast majority of pollinators exhibited significant annual differences in average abundance. Only 35.7% of taxa were recorded in all of the six study years. The pollinator assemblage had marked seasonal dynamics. Important changes in species richness, abundance and composition took place over the flowering season of L. latifolia (nearly 3 months). Only 21.7% of insect taxa occurred throughout the flowering season. Lavandula latifolia populations at different distances from water courses differed broadly in the abundance and composition of pollinators. Hymenopterans dominated numerically at the water-distant sites, whereas lepidopterans prevailed in populations growing in the vicinity of streams. Only 40.7% of taxa were recorded at all of the four study populations. Within the same plant population, horizontal distances of the order of 25 m resulted in significant changes in pollinator composition. Variations at the four scales considered combine to produce, from the viewpoint of L. latifolia, a spatio-temporal mosaic of pollinators. As these differ broadly in frequency of pollen transfer, size of pollen loads deposited, and between-flower flight distance patterns, spatio-temporal variation will predictably result in inconsistent or contradictory selective pressures on the plant, thus hindering specialization in relation to particular pollinators.