Mating frequency estimation and its importance for colony abundance analyses in eusocial pollinators: a case study of Bombus impatiens (Hymenoptera: Apidae).

Autor:	Bird SA; Intercollege Graduate Degree Program in Ecology, The Pennsylvania State University, University Park, PA 16802, USA.; Temperate Tree Fruit and Vegetable Research Unit, United States Department of Agriculture, 5230 Konnowac Pass Rd, Wapato, WA 98951, USA., Pope NS; Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA.; Department of Biology, Institute of Ecology and Evolution, University of Oregon, Eugene, OR 97403, USA., McGrady CM; Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA., Fleischer SJ; Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA., López-Uribe MM; Intercollege Graduate Degree Program in Ecology, The Pennsylvania State University, University Park, PA 16802, USA.; Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA.
Jazyk:	angličtina
Zdroj:	Journal of economic entomology [J Econ Entomol] 2024 Oct 14; Vol. 117 (5), pp. 1712-1722.
DOI:	10.1093/jee/toae178
Abstrakt:	The genus Bombus (bumble bees) includes approximately 265 species, many of which are in decline in North America and Europe. To estimate colony abundance of bumble bees in natural and agricultural habitats, sibship relationships are often reconstructed from genetic data with the assumption that colonies have 1 monandrous queen. However, some species such as the North American common eastern bumble bee (Bombus impatiens Cresson) can display low levels of polyandry, which may bias estimates of colony abundance based on monandrous sibship reconstructions. To accurately quantify rates of polyandry in wild and commercially mated queens of this species, we empirically estimated mating frequencies using a novel statistical model and genotypes from 730 bees. To genotype individuals, we used a highly polymorphic set of microsatellites on colonies established from 20 wild-caught gynes and 10 commercial colonies. We found multiple fathers in 3 of the wild colonies and 3 of the commercial colonies. This resulted in average effective mating frequencies of 1.075 ± 0.18 and 1.154 ± 0.25 for wild and commercial colonies, respectively. These findings agree with previous reports of low rates of polyandry for B. impatiens. Using a large empirical dataset, we demonstrate that assuming monandry for colony abundance estimation in species that violate this assumption results in an overestimation of the number of colonies. Our results emphasize the importance of studying mating frequencies in social species of conservation concern and economic importance for the accuracy of colony abundance estimation and for understanding their ecology and sociobiology. (© The Author(s) 2024. Published by Oxford University Press on behalf of Entomological Society of America.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu