Journal ArticleDOI
Efficiency of Malaise traps and colored pan traps for collecting flower visiting insects from three forested ecosystems
TLDR
In this article, the authors compared pan trap (blue, yellow, white, and red) and Malaise trap catches from forests in three physiographic provinces (Piedmont, Coastal Plain, and Blue Ridge) of the southeastern United States.Abstract:
Pan and Malaise traps have been used widely to sample insect abundance and diversity, but no studies have compared their performance for sampling pollinators in forested ecosystems. Malaise trap design and color of pan traps are important parameters that influence insect pollinator catches. We compared pan trap (blue, yellow, white, and red) and Malaise trap catches from forests in three physiographic provinces (Piedmont, Coastal Plain, and Blue Ridge) of the southeastern United States. Similarities in trap performance between sites were observed with blue pan traps being most effective overall. Our results showed that various pollinator groups preferred certain pan trap colors and that adding color to Malaise traps influenced insect pollinator catches. However, pan traps generally caught more pollinators than Malaise traps. Because of their low cost and simplicity, using several colors of pan traps is an effective way to sample relative abundance and species richness of flower-visiting insects.read more
Citations
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Journal ArticleDOI
Decreasing Abundance, Increasing Diversity and Changing Structure of the Wild Bee Community (Hymenoptera: Anthophila) along an Urbanization Gradient
Laura Fortel,Mickaël Henry,Laurent Guilbaud,Anne Guirao,Michael Kuhlmann,Hugues Mouret,Orianne Rollin,Bernard E. Vaissière +7 more
TL;DR: It is found that urban areas supported a diverse bee community, but sites with an intermediate level of urbanization were the most speciose ones, including greater proportion of parasitic species.
Journal ArticleDOI
Spatial patterns of bee captures in North American bowl trapping surveys
Sam Droege,Vincent J. Tepedino,Gretchen LeBuhn,William A. Link,Robert L. Minckley,Qian Chen,Casey Conrad +6 more
TL;DR: In this paper, the authors present results from seven studies of bowl traps placed in trapping webs, grids, and transects in four North American ecoregions (Mid-Atlantic, Coastal California, Chihuahuan Desert, and Columbia Plateau).
Journal ArticleDOI
Urban areas as hotspots for bees and pollination but not a panacea for all insects
Panagiotis Theodorou,Panagiotis Theodorou,Rita Radzevičiūtė,Guillaume Lentendu,Guillaume Lentendu,Belinda Kahnt,Martin Husemann,Martin Husemann,Christoph Bleidorn,Josef Settele,Josef Settele,Oliver Schweiger,Ivo Grosse,Tesfaye Wubet,Tomás E. Murray,Robert J. Paxton +15 more
TL;DR: It is shown that urban areas have high diversity of bees but not other insects, and high pollination provisioning, relative to rural sites, and it is found that ecotones in insect-friendly green cover surrounding both urban and rural sites boost pollination.
Journal ArticleDOI
Visual ecology of flies with particular reference to colour vision and colour preferences
TL;DR: Indirect evidence for colour vision provided from electrophysiological recordings of the spectral sensitivity of photoreceptors and opsin genes indicates similar requisites in various flies; the flies’ responses to coloured targets, however, are much more diverse.
Journal ArticleDOI
Optimising coloured pan traps to survey flower visiting insects
TL;DR: By drawing sub samples comprised of different colour combinations from a database of pan trap surveys in the lowlands of the Cape Floristic Region, this work examines the effects of colour on pan trap catches and determines which combinations of colours might provide better estimates of diversity when sampling with multi-colour sets of pan traps.
References
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Book
Ecological methods: With particular reference to the study of insect populations
TL;DR: Ecological methods : with particular reference to the study of insect populations, Ecological methods for estimating insect populations using probabilistic methods.
Journal ArticleDOI
Ecological Methods, with Particular Reference to the Study of Insect Populations
L. R. Taylor,T. R. E. Southwood +1 more
Journal ArticleDOI
Measurement of "overlap" in comparative ecological studies
TL;DR: Objective, empirical measures of overlap between samples of items distributed proportionally into various qualitative categories derived from either probability or information theory should prove useful to the ecologist in comparative studies of diet, habitat preference, seasonal patterns of abundance, faunal lists, or similar data.