High mitochondrial DNA diversity and lack of population structure in a solitary cavity-nesting bee in an urban landscape

Luna-Lucena, Danielle; Moure˗Oliveira, Diego; Ferreira, Kátia Maria; Lucena, Daercio A. A.; Garófalo, Carlos Alberto; Moraes, Evandro M.; Lama, Marco Antônio Del

doi:10.1093/biolinnean/blx019

Cited by 8 publications

(4 citation statements)

References 60 publications

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“…This same scenario and biological interpretation have been commonly reported for several eusocial bee species (Yanega 1990;Francisco and Arias 2009;Brito and Arias 2010;Bonatti et al 2014;Francisco et al 2016b). Primitively eusocial and solitary bees are generally not philopatric (Kim et al 2008;Francisco et al 2016a;Rosa et al 2016;Luna-Lucena et al 2017;Toledo et al 2017), but some exceptions have been reported (Ferreira et al 2013;López-Uribe et al 2014Penha et al 2015). Moreover, the gene flow between the two distinct groups (BCIN and CU) recognized in the haplotype network may be affected by Serra do Mar, a mountain range across the Atlantic rainforest in the coastal areas from Southeastern towards Southern Brazil (Figures 1 and 2).…”

Section: Discussionsupporting

confidence: 74%

Genetic analyses reveal female philopatric behavior and nest usage by multiple females of the solitary oil-collecting bee Tetrapedia diversipes (Hymenoptera: Apidae)

et al. 2020

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Tetrapedia diversipes is an oil-collecting solitary species widely distributed in the Neotropical region. The high incidence of this species in trap nests makes it potentially a model species for ecological, genetic, evolutionary, and physiological studies. Here, we performed a population genetic study by using mitochondrial and microsatellite markers. This study aimed to investigate the genetic diversity, gene flow among populations, and offspring relatedness within the nest. The results indicated female philopatry and gene flow to be mainly mediated by males. Data on offspring relatedness suggested that nest owner replacement is common in this species.

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Section: Discussionsupporting

confidence: 74%

Genetic analyses reveal female philopatric behavior and nest usage by multiple females of the solitary oil-collecting bee Tetrapedia diversipes (Hymenoptera: Apidae)

et al. 2020

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“…Similarly, Silva et al (2020) found a very recent (300–400 years ago) expansion of the pest soybean looper moth, Chrysodeixis includens , that was perhaps related to human colonization and agriculture. Some other studies have examined past demography using Bayesian methods with variable results, but most infer older and often climate‐related demographies (e.g., Hinojosa et al (2019); Luna˗Lucena et al (2017); Shokri et al (2021) and references therein). However, some studies might violate assumptions of panmixia and marker neutrality.…”

Section: Discussionmentioning

confidence: 99%

Holocene population expansion of a tropical bee coincides with early human colonization of Fiji rather than climate change

et al. 2021

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There is substantial debate about the relative roles of climate change and human activities on biodiversity and species demographies over the Holocene. In some cases, these two factors can be resolved using fossil data, but for many taxa such data are not available. Inferring historical demographies of taxa has become common, but the methodologies are mostly recent and their shortcomings often unexplored. The bee genus Homalictus is developing into a tractable model system for understanding how native bee populations in tropical islands have responded to past climate change. We greatly expand on previous studies using sequences of the mitochondrial gene COI from 474 specimens and between 171 and 3928 autosomal (DArTSeq) single nucleotide polymorphism loci from 19 specimens of the native Fijian bee, Homalictus fijiensis, to explore its historical demography using coalescent and mismatch analyses. We ask whether past changes in demography were human‐ or climate‐driven, while considering analytical assumptions. We show that inferred changes in population sizes are too recent to be explained by past climate change. Instead we find that a dramatic increase in population size for the main island of Viti Levu coincides with increasing occupation by humans and their modification of the environment. We found no corresponding change in bee population size for another major island, Kadavu, where human populations and agricultural activities have been historically very low. Our analyses indicate that molecular approaches can be used to disentangle the impacts of humans and climate change on a major tropical pollinator and that stringent analytical approaches are required for reliable interpretation of results.

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“…The capacity to disperse long-distances has been proposed to account for the low genetic differentiation observed in populations of some bees (Ulrich et al, 2009;López-Uribe et al, 2014;Jaffé et al, 2016;Luna-Lucena et al, 2017), despite them occupying disturbed habitats. This includes stingless bees, many of which appear capable of maintaining high gene flow in the face of modifications to their natural habitat.…”

Section: Discussionmentioning

confidence: 99%

Males Are Capable of Long-Distance Dispersal in a Social Bee

Bueno

Buchmann

et al. 2022

Front. Ecol. Evol.

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Pollinator conservation is aided by knowledge of dispersal behavior, which shapes gene flow and population structure. In many bees, dispersal is thought to be male-biased, and males’ movements may be critical to maintaining gene flow in disturbed and fragmented habitats. Yet male bee movements are challenging to track directly and male dispersal ability remains poorly understood in most species. Here, we combine field manipulations and models to assess male dispersal ability in a stingless bee (Tetragonula carbonaria). We placed colonies with virgin queens at varying distances apart (1–48 km), genotyped the males that gathered at mating aggregations outside each colony, and used pairwise sibship assignment to determine the distribution of likely brothers across aggregations. We then compared simulations of male dispersal to our observed distributions and found best-fit models when males dispersed an average of 2–3 km (>2-fold female flight ranges), and maximum of 20 km (30-fold female flight ranges). Our data supports the view that male bee dispersal can facilitate gene flow over long-distances, and thus play a key role in bee populations’ resilience to habitat loss and fragmentation. In addition, we show that the number of families contributing to male aggregations can be used to estimate local stingless bee colony densities, allowing population monitoring of these important tropical pollinators.

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High mitochondrial DNA diversity and lack of population structure in a solitary cavity-nesting bee in an urban landscape

Cited by 8 publications

References 60 publications

Genetic analyses reveal female philopatric behavior and nest usage by multiple females of the solitary oil-collecting bee Tetrapedia diversipes (Hymenoptera: Apidae)

Genetic analyses reveal female philopatric behavior and nest usage by multiple females of the solitary oil-collecting bee Tetrapedia diversipes (Hymenoptera: Apidae)

Holocene population expansion of a tropical bee coincides with early human colonization of Fiji rather than climate change

Males Are Capable of Long-Distance Dispersal in a Social Bee

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