Climate, physiological tolerance and sex‐biased dispersal shape genetic structure of <scp>N</scp>eotropical orchid bees

López‐Uribe, Margarita M.; Zamudio, Kelly R.; Cardoso, Carolina F.; Danforth, Bryan N.

doi:10.1111/mec.12689

Cited by 63 publications

(60 citation statements)

References 68 publications

(73 reference statements)

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“…Less detailed studies have inferred similar patterns in the Southern Hemisphere [43], but few have examined how biota in tropical latitudes have responded to these global cycles [44,45]. The tropical Pacific represents a major driving force behind current global climates, and is expected to have played a considerable role throughout glacial periods [46].…”

Section: Discussionmentioning

confidence: 99%

Parallel responses of bees to Pleistocene climate change in three isolated archipelagos of the southwestern Pacific

2014

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The impacts of glacial cycles on the geographical distribution and size of populations have been explored for numerous terrestrial and marine taxa. However, most studies have focused on high latitudes, with only a few focused on the response of biota to the last glacial maximum (LGM) in equatorial regions. Here, we examine how population sizes of key bee fauna in the southwest Pacific archipelagos of Fiji, Vanuatu and Samoa have fluctuated over the Quaternary. We show that all three island faunas suffered massive population declines, roughly corresponding in time to the LGM, followed by rapid expansion post-LGM. Our data therefore suggest that Pleistocene climate change has had major impacts across a very broad tropical region. While other studies indicate widespread Holarctic effects of the LGM, our data suggest a much wider range of latitudes, extending to the tropics, where these climate change repercussions were important. As key pollinators, the inferred changes in these bee faunas may have been critical in the development of the diverse Pacific island flora. The magnitude of these responses indicates future climate change scenarios may have alarming consequences for Pacific island systems involving pollinator-dependent plant communities and agricultural crops.

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Section: Discussionmentioning

confidence: 99%

Parallel responses of bees to Pleistocene climate change in three isolated archipelagos of the southwestern Pacific

2014

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“…In all these studies, genetic analyses were based mainly on nuclear markers. However, when López-Uribe et al (2014) analysed the genetic diversity and population structure of three orchid bee species (Eulaema bombiformis , Eulaema meriana and Eulaema cingulata ) using both nuclear and mitochondrial markers, they detected discrepant results between the two types of markers regarding the structuring of populations of these species.…”

Section: Introductionmentioning

confidence: 92%

“…Thus, based on the recent findings of López-Uribe et al (2014), it seems logical to use a combination of nuclear and mitochondrial markers to achieve a better understanding of the genetic structure of Euglossini populations.…”

Section: Introductionmentioning

confidence: 98%

Mitochondrial DNA of Euglossa iopoecila (Apidae, Euglossini) reveals two distinct lineages for this orchid bee species endemic to the Atlantic Forest

et al. 2014

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International audienceAbstractThis study analysed the population genetic structure of Euglossa iopoecila, an orchid bee species endemic to the Atlantic Forest which shows a variation in the colour of its metallic integument across its distribution. Our analyses were based on microsatellite and mitochondrial markers. From ten microsatellite loci surveyed, six are described herein for the first time. Mitochondrial markers were obtained by sequencing 651 bp of Cytb gene. Bees were collected from six Atlantic Forest remnants distributed along the Serra do Mar Biodiversity Corridor, which is one of the largest remnants of dense forest within the Atlantic Forest of southern and south-eastern Brazil. The microsatellite markers showed lower levels of genetic structure than those found for mitochondrial markers. Our findings based on mitochondrial markers indicate the existence of at least two different evolutionarily significant units of E. iopoecila populations along the Serra do Mar Biodiversity Corridor

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“…Two recent studies (Groom et al 2014a;López-Uribe et al 2014) have used phylogeographic and coalescent Bayesian Skyline Plot analyses to examine changes in bee abundances for tropical halictine (Halictidae) and euglossine (Apidae) bees respectively. Both studies found a strong response to Pleistocene climates, suggesting that these two faunal groups have been impacted by glacial cycles despite their tropical distribution.…”

Section: Introductionmentioning

confidence: 99%

Biogeography and demography of an Australian native bee Ceratina australensis (Hymenoptera, Apidae) since the last glacial maximum

Dew¹,

Rehan²,

Schwarz³

2016

JHR

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The small carpenter bees, genus Ceratina, are highly diverse, globally distributed, and comprise the sole genus in the tribe Ceratinini. Despite the diversity of the subgenus Neoceratina in the Oriental and IndoMalayan region, Ceratina (Neoceratina) australensis is the only ceratinine species in Australia. We examine the biogeography and demography of C. australensis using haplotype variation at 677 bp of the barcoding region of COI for specimens sampled from four populations within Australia, across Queensland, New South Wales, Victoria and South Australia. There is geographic population structure in haplotypes, suggesting an origin in the northeastern populations, spreading to southern Australia. Bayesian Skyline Plot analyses indicate that population size began to increase approximately 18,000 years ago, roughly corresponding to the end of the last glacial maximum. Population expansion then began to plateau approximately 6,000 years ago, which may correspond to a slowing or plateauing in global temperatures for the current interglacial period. The distribution of C. australensis covers a surprisingly wide range of habitats, ranging from wet subtropical forests though semi-arid scrub to southern temperate coastal dunes. The ability of small carpenter bees to occupy diverse habitats in ever changing climates makes them a key species for understanding native bee diversity and response to climate change.

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Climate, physiological tolerance and sex‐biased dispersal shape genetic structure of Neotropical orchid bees

Cited by 63 publications

References 68 publications

Parallel responses of bees to Pleistocene climate change in three isolated archipelagos of the southwestern Pacific

Parallel responses of bees to Pleistocene climate change in three isolated archipelagos of the southwestern Pacific

Mitochondrial DNA of Euglossa iopoecila (Apidae, Euglossini) reveals two distinct lineages for this orchid bee species endemic to the Atlantic Forest

Biogeography and demography of an Australian native bee Ceratina australensis (Hymenoptera, Apidae) since the last glacial maximum

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