Are pan traps colors complementary to sample community of potential pollinator insects?

Are pan traps colors complementary to sample community of potential pollinator insects?

The global initiatives of monitoring and conserving pollinators require worldwide assessments with comparable data sets collected through standardized methods. The use of pan traps is a passive method widely applied to sample flower visitors, standing out for its simplicity. Despite its wide use to...

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Bibliographic Details
Published in:Journal of insect conservation Vol. 20; no. 4; pp. 583 - 596
Main Authors: Moreira, Eduardo Freitas, Santos, Rafaela Lorena da Silva, Penna, Uiré Lopes, Angel-Coca, Catalina, de Oliveira, Favízia Freitas, Viana, Blandina Felipe
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-08-2016
Springer Nature B.V
Subjects:
Animal Ecology
Biodiversity
Biomedical and Life Sciences
Conservation biology
Conservation Biology/Ecology
Entomology
Environmental monitoring
Hymenoptera
Insects
Life Sciences
Original Paper
Pollen
Pollinators
Species composition
Species richness
Trap efficiency
Tropical environments
Wasps
Monitoring of biodiversity
Neotropical savanna
Bees
Color preference
Insect vision
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Summary:The global initiatives of monitoring and conserving pollinators require worldwide assessments with comparable data sets collected through standardized methods. The use of pan traps is a passive method widely applied to sample flower visitors, standing out for its simplicity. Despite its wide use to sample pollinator diversity, the influence of color on trap efficiency is not well understood. The available studies are particularly scarce in the tropics and have generated divergent results. The main goal of the present study was to assess whether blue, yellow and white pan traps are complementary to sample Hymenoptera community. For this, we placed 49 sample units of blue, white and yellow pan traps in agricultural and natural (savanna-like) areas in Chapada Diamantina, Bahia, Brazil. We found that the species richness from blue and yellow pan traps were not significantly different, but both were significantly greater than the species richness from white pan traps. However, bees were significantly more attracted to the blue pan traps and wasps to the yellow ones; thus, color attractiveness was group-specific. Pan traps of different color showed low species composition overlap with 61 % of species collected exclusively in one of the three pan trap colors, and the species composition in the blue traps differed consistently from that in the traps of the other colors. In the article we discuss the implication of the results and defend the combined use of pan traps with different colors as a solution for the differential variable sample bias.
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ISSN:1366-638X
1572-9753
DOI:10.1007/s10841-016-9890-x