Habitat-Dependency of Transect Walk and Pan Trap Methods for Bee Sampling in Farmlands
Habitat-Dependency of Transect Walk and Pan Trap Methods for Bee Sampling in Farmlands
复制标题
农田蜜蜂采样横断面行走和盘式陷阱方法的栖息地依赖性
DOI：
--
复制
发表时间：
2019
影响因子：
0.6
通讯作者：
Anikó Kovács‐Hostyánszki
中科院分区：
文献类型：
--
作者：
Barbara Templ;Edina Mózes;M. Templ;Rita Földesi;Ádám Szirák;A. Báldi;Anikó Kovács‐Hostyánszki
蜜蜂是最重要的访花动物，为生态系统提供重要的授粉服务。由于蜜蜂在世界范围内的减少，应该有标准化的抽样方法，以确保研究结果的一致性和可比性。我们比较了黄盘陷阱和样带步行两种常用的采样方法，以确定(i)哪些栖息地变量会影响采样蜜蜂群落的物种组成、丰度和物种丰富度，（ii）哪种方法可能存在对某些蜜蜂个体或群体的采样偏差，（iii）不同栖息地的采样效率。我们在不同的农业生境中进行了实地调查，这些生境沿景观异质性和地形梯度分布。结果表明，植被高度、平均花数和木本植被数量对采样效率的影响最大。我们的调查还表明，样带步行取样通常捕获的蜜蜂较少，特别是在茬地、玉米地和谷物地。样带步行法采集的样本中以蜜蜂属（Apis mellifera）和Bombus属（Bombus spp.）的丰度最高，其他属（Dasypoda、Hylaeus和Panurgus）的丰度最高。在此基础上，我们建议：(1)采用样带步行法比较不同植被和花卉特征生境的访花野生蜜蜂群落样本；(2)采用样带步行法或捕盘法比较相似生境；(3)采用综合方法，将这两种采样技术结合起来，以获得更复杂的野生蜜蜂物种组成。
Abstract Bees are the most important group of flower visitors providing an essential ecosystem service, namely pollination. Due to the worldwide decline of bees, there should be standardized sampling methods in place to ensure consistent and comparable results between studies. We compared the two commonly used sampling methods of yellow pan traps and transect walk to determine (i) which habitat variables affect the species composition, abundance and species richness of sampled bee communities, (ii) which method potentially contains sampling bias towards some individuals or groups of bees and (iii) the efficiency of sampling in various habitats. We conducted fieldwork in different agricultural habitats distributed along landscape heterogeneity and topography gradients. Our results showed that the height of vegetation, the average number of flowers and the amount of woody vegetation had the greatest influence on the sampling efficiency. Our survey also demonstrated that sampling by transect walk captured less bees in general, especially in stubble, maize, and cereal fields. We found that Apis mellifera and Bombus spp. were well represented in samples collected by the transect walk method, while the abundance of other genera, especially Dasypoda, Hylaeus and Panurgus was higher in pan traps. Based on the results, we suggest (i) the transect walk method to compare samples of flower-visiting wild bee communities from various habitats of different vegetation and flower characteristics, (ii) application of the transect walk or pan traps to compare similar habitats and (iii) adoption of a comprehensive method which would incorporate both sampling techniques to gain a more complex insight into wild bee species composition.
景观对温带系统传粉媒介群落的影响：证据和知识差距
影响因子：
5.2
作者：
Senapathi D
通讯作者：
Senapathi D