Arid
DOI10.2317/JKES121126.1
Sensitivity of Systematic Net Sampling for Detecting Shifting Patterns of Incidence and Abundance in a Floral Guild of Bees at Larrea tridentata
Cane, James H.1; Kervin, Linda J.; McKinley, Robert2
通讯作者Cane, James H.
来源期刊JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY
ISSN0022-8567
EISSN1937-2353
出版年2013
卷号86期号:2页码:171-180
英文摘要

Measuring shifting patterns of occurrence and abundance among members of pollinator guilds is critical for studies of their ecology, conservation and contribution to host pollination. The constitution of floral bee guilds is not readily interpreted from passive sampling of bee communities (e.g., pan or Malaise traps). Net collecting at flowers positively associates bee and flowering species, but do sampling biases of individual net collectors obscure real spatiotemporal dynamics in floral guilds of bees, or generate spurious differences where no changes have occurred? The diverse guild of bees foraging at 1-ha plots of creosote bush (Larrea tridentata) was systematically net sampled by practiced collectors along randomized belt transects across the Chihuahuan, Sonoran and Mojave deserts. These guild samples were compared by Horn’s Index of Similarity, evaluating the magnitude of collector biases contrasted with geographical and temporal variability in guild composition. Simultaneous samples taken by several collectors were always more similar than those by the same collector in sequential years at a site (0.86 vs. 0.54) or concurrently at neighboring sites (0.84 vs. 0.61). Pooling collectors’ site samples did not alter spatiotemporal estimates of guild similarity. Repeated seasonal samples by three collectors at one site were very similar for any given day (0.90) with the more experienced pair being particularly consistent and similar (0.96 +/- 0.01). Seasonal changes of the guild were readily detected and quantified. Thus, aerial net sampling provided reliable estimates of temporal and spatial dynamics of the Larrea bee guilds once the sampling protocol had been practiced. We recommend systematic aerial net collecting of pollinators at counted floral host plants to quickly and reliably characterize pollinator guilds quantitatively. Systematic net sampling of bees taken at a sequence of randomly chosen individuals of a given flowering species offers a reliable and replicable means of efficiently quantifying variability and change in such floral guilds of bees. The method should find application for conservation, agriculture and habitat management involving bees and other insect pollinators.


英文关键词Apoidea Apiformes creosote bush sampling methods pollinator conservation
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000324602800007
WOS关键词DESERT BEES ; HYMENOPTERA ; APIFORMES ; BUTTERFLIES ; SCALES ; SIZE
WOS类目Entomology
WOS研究方向Entomology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/178708
作者单位1.Utah State Univ, USDA Pollinating Insect Res Unit, Logan, UT 84341 USA;
2.Univ Rochester, Dept Biol, Rochester, NY 14642 USA
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Cane, James H.,Kervin, Linda J.,McKinley, Robert. Sensitivity of Systematic Net Sampling for Detecting Shifting Patterns of Incidence and Abundance in a Floral Guild of Bees at Larrea tridentata[J],2013,86(2):171-180.
APA Cane, James H.,Kervin, Linda J.,&McKinley, Robert.(2013).Sensitivity of Systematic Net Sampling for Detecting Shifting Patterns of Incidence and Abundance in a Floral Guild of Bees at Larrea tridentata.JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY,86(2),171-180.
MLA Cane, James H.,et al."Sensitivity of Systematic Net Sampling for Detecting Shifting Patterns of Incidence and Abundance in a Floral Guild of Bees at Larrea tridentata".JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY 86.2(2013):171-180.
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