地中海岛屿传粉媒介物种丰富度、丰度及保护状况的时空差异

Q3 Agricultural and Biological Sciences
Pau Enric Serra Marin, Rafel Beltran, A. Traveset
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引用次数: 0

摘要

尽管地中海盆地是传粉昆虫多样性的热点,但人们对这种多样性在该地区的分布及其保护状况知之甚少。这项研究通过研究地中海主要岛屿之一马略卡岛的传粉昆虫多样性参数,并根据国际自然保护联盟的标准进一步评估其保护类别,有助于填补这一信息空白。我们关注三个社区,两个沿海和一个山地灌木林,我们已经研究了几年。对于每个群落,我们获得了以下变量:(1)香农多样性(H'),(2)皮氏指数(J'),,(3)每株传粉昆虫的数量(Lp),(4)花访问率(FVR),(5)专业化指数(d')和(6)传粉昆虫的归一化程度,即每种传粉昆虫访问的植物数量相对于群落中植物物种总数(ND)。所有传粉昆虫都被分为功能组,以测试它们之间这些变量的差异。通过GLMM测试社区、年龄和功能组之间的差异。三个群落在传粉昆虫物种组成、物种丰富度和多样性方面存在差异。传粉者的多样性也随着时间的推移而变化,尤其是在沿海社区,在其中一个研究年份,该社区遭受了重大干扰。无论功能组如何,传粉昆虫的专业化程度似乎取决于上下文。如果不采取适当的管理措施来减少对传粉昆虫种群的威胁,本地和特有物种可能会在短期内消失。在这种丰富的多样性永远消失之前,迫切需要进一步的研究来评估地中海大多数昆虫传粉昆虫的保护状况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spatio-temporal differences in pollinator species richness, abundance and conservation status in a Mediterranean island
Although the Mediterranean basin is a hotspot of pollinator diversity, little is still known about how such diversity is distributed in the region and about its conservation status. This study contributes to filling this information gap by studying pollinator diversity parameters in one of the main Mediterranean islands, Mallorca, and further evaluating their conservation category according to the IUCN criteria. We focus on three communities, two coastal and one mountain shrubland, which we have studied for several years. For each community, we obtained the following variables: (1) Shannon diversity (H'), (2) Pielou's index (J'), (3) Number of pollinators per plant (Lp), (4) Flower visitation rate (FVR), (5) Specialisation index (d') and (6) Normalised degree of pollinators, i.e. the number of plants visited per pollinator species relative to the total number of plant species in the community (ND). All pollinators were categorised into functional groups to test for differences in such variables among them. Differences across communities, years and functional groups were tested through GLMMs. The three communities showed differences in pollinator species composition, species richness and diversity. Pollinator diversity also varied with time, especially in the coastal community, which suffered a major disturbance during one of the study years. Regardless of the functional group, the pollinator specialisation degree seems context-dependent. Native and endemic species might disappear in the short term if appropriate management measures are not taken to narrow down the threats to pollinator populations. Further research is urgently needed to assess most insect pollinators' conservation status in the Mediterranean before such rich diversity is lost forever.
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来源期刊
Journal of Pollination Ecology
Journal of Pollination Ecology Environmental Science-Ecology
CiteScore
1.50
自引率
0.00%
发文量
17
审稿时长
17 weeks
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