An integrative taxonomic approach confirms the valid status of Bombus glacialis, an endemic bumblebee species of the High Arctic

Potapov, Grigory S.; Kondakov, Alexander V.; Spitsyn, Vitaly M.; Filippov, B. Yu.; Kolosova, Yu. S.; Zubrii, Natalia A.; Bolotov, Ivan N.

doi:10.1007/s00300-017-2224-y

Cited by 20 publications

(32 citation statements)

References 48 publications

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“…Later, the bumble bee fauna of Novaya Zemlya was examined in a series of taxonomic and ecological works (Friese 1902, 1905, 1908, 1923; Sparre-Schneider 1909; Høeg 1924) and was discussed in subsequent reviews on bumble bees from various northern Palearctic areas (Pittioni 1942, 1943; Løken 1973; Rasmont and Iserbyt 2014; Potapov et al 2014; Rasmont et al 2015). Finally, a recent study confirms the status of Bombusglacialis as a divergent phylogenetic lineage and a putative endemic species to the Arctic Ocean islands including Novaya Zemlya (Potapov et al 2018a).…”

Section: Introductionsupporting

confidence: 58%

Pollinators on the polar edge of the Ecumene: taxonomy, phylogeography, and ecology of bumble bees from Novaya Zemlya

Potapov

Kondakov

Filippov

et al. 2019

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The High Arctic bumble bee fauna is rather poorly known, while a growing body of recent molecular research indicates that several Arctic species may represent endemic lineages with restricted ranges. Such local endemics are in need of special conservation efforts because of the increasing anthropogenic pressure and climate changes. Here, we re-examine the taxonomic and biogeographic affinities of bumble bees from Novaya Zemlya using historical samples and recently collected materials (1895–1925vs.2015–2017). Three bumble bee species inhabit the Yuzhny (Southern) Island and the southern edge of Severny (Northern) Island of this archipelago:BombusglacialisFriese, 1902,B.hyperboreusSchönherr, 1809, andB.pyrrhopygusFriese, 1902.Bombusglacialisshares three unique COI haplotypes that may indicate its long-term (pre-glacial) persistence on Novaya Zemlya. In contrast,BombushyperboreusandB.pyrrhopygusshare a rather low molecular divergence from mainland populations, with the same or closely related haplotypes as those from Arctic Siberia and Norway. A brief re-description ofBombuspyrrhopygusbased on the newly collected topotypes is presented. Habitats, foraging plants and life cycles of bumble bees on Novaya Zemlya are characterized, and possible causes of extremely low bumble bee abundance on the archipelago are discussed. The species-poor bumble bee fauna of Novaya Zemlya is compared with those in other areas throughout the Arctic. The mean bumble bee species richness on the Arctic Ocean islands is three times lower than that in the mainland Arctic areas (3.1vs.8.6 species per local fauna, respectively). General linear models (GLMs) indicate that this difference can be explained by specific environmental conditions of insular areas. Our findings highlight that the insularity is a significant factor sharply decreasing species richness in bumble bee assemblages on the Arctic Ocean archipelagoes through colder climate (lower summer temperatures), prevalence of harsh Arctic tundra landscapes with poor foraging resources, and in isolation from the mainland.

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Section: Introductionsupporting

confidence: 58%

Pollinators on the polar edge of the Ecumene: taxonomy, phylogeography, and ecology of bumble bees from Novaya Zemlya

Potapov

Kondakov

Filippov

et al. 2019

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“…The bumblebee systematic remains challenging (Bertsch & Schweer 2012;Lecocq et al 2015;Williams et al 2012;Potapov et al, 2018). Development of an integrative taxonomy approach based on consensus between several independent traits (i.e., DNA, eco-chemical traits) provides an efficient solution to refine bumblebee systematic (Engel 2011;Lecocq et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Adding attractive semio-chemical trait refines the taxonomy of Alpinobombus (Hymenoptera: Apidae)

et al. 2018

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Species taxonomy of bumblebees (Bombus Latreille, 1802) is well known to be problematic due to a potentially high intra-specific variability of morphological traits while different species can converge locally to the same color pattern (cryptic species). Assessing species delimitation remains challenging because it requires to arbitrarily select variable traits whose accuracy continues to be debated. Integrative taxonomic approach seems to be very useful for this group as different independent traits are assessed to propose a rational taxonomic hypothesis. Among operational criteria to assess specific status, the reproductive traits involved in the pre-mating recognition (i.e., the male cephalic labial gland secretions, CLGS) have been premium information. Since these secretions are supposed to be species-specific, these chemical traits can bring essential information where species delimitation is debated. Here, we describe and compare the CLGS of 161 male specimens of nine Alpinobombus taxa: alpinus , balteatus , helleri , hyperboreus , kirbiellus, natvigi , neoboreus , polaris , and pyrrhopygus. We aim also to test the congruence between this new information (reproductive traits) and published genetic dataset. Our results emphasized six distinct groups with diagnostic major compounds: (a) alpinus + helleri with hexadec-9-en-1-ol; (b) polaris + pyrrhopygus with two major compounds hexadec-9-en-1-ol and hexadec-9-enal; (c) balteatus with tetradecyl acetate; (d) kirbiellus with geranyl geranyl acetate; (e) hyperboreus + natvigi with octadec-11en-1-ol; (f) neoboreus with octadec-9-en-1-ol. Based on this new information, we can confirm the species status of B. alpinus , B. balteatus , B. hyperboreus , B. kirbiellus , B. neoboreus , and B. polaris . We also confirm the synonymy of helleri (Alps) with alpinus (Sweden). However, the specific status of natvigi (Alaska) and pyrrhopygus (Sweden) is questionable and these taxa do not have specific CLGS composition.bumblebees / species / cephalic labial gland secretions / arcto-alpine distribution / chemical trait

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“…the Solovetsky Archipelago in Northern European Russia: Bolotov et al 2013) but is entirely different from those on the Arctic Ocean Islands, the faunas of which are dominated by cold-adapted Arctic species (Kolosova and Potapov 2011, Potapov et al 2017). Based on long-term collection data, Prŷs-Jones et al (2016) have suggested that Bombus hortorum and B. lucorum invaded Iceland around the middle of the 20 th century (in the 1950s and in the 1970s, respectively).…”

Section: Discussionmentioning

confidence: 99%

“…This phylogeography-based conclusion is in agreement with paleogeographic modelling that suggests the existence of a continuous, thick ice sheet covering the entire island (Bingham et al 2003, Ingólfsson et al 2010). More interestingly, a phylogeographic pattern has recently been discovered on the Novaya Zemlya Archipelago that is thought to have served as a cryptic glacial refugium for bumblebees during the Late Pleistocene epoch (Potapov et al 2017). …”

Section: Discussionmentioning

confidence: 99%

“…are an appropriate model for biogeographic reconstructions because these insects are associated with flowering plants and are poorly equipped for dispersal across large water barriers (Bolotov et al 2013, Potapov et al 2017). The faunistic research of bumblebees in Iceland has a long history (Prŷs-Jones et al 1981, 2016, Kristjánsson 2013, Kratochwil 2016).…”

Section: Introductionmentioning

confidence: 99%

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Widespread continental mtDNA lineages prevail in the bumblebee fauna of Iceland

Potapov

Kondakov

Kolosova

et al. 2018

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Origins of the fauna in Iceland is controversial, although the majority of modern research supports the postglacial colonization of this island by terrestrial invertebrates rather than their long-term survival in glacial refugia. In this study, we use three bumblebee species as a model to test the hypothesis regarding possible cryptic refugia in Iceland and to evaluate a putative origin of recently introduced taxa. Bombus jonellus is thought to be a possible native Icelandic lineage, whereas B. lucorum and B. hortorum were evidently introduced in the second half of the 20th century. These phylogeographic analyses reveal that the Icelandic Bombus jonellus shares two COI lineages, one of which also occurs in populations on the British Isles and in mainland Europe, but a second lineage (BJ-02) has not been recorded anywhere. These results indicate that this species may have colonized Iceland two times and that the lineage BJ-02 may reflect a more ancient Late Pleistocene or Early Holocene founder event (e.g., from the British Isles). The Icelandic populations of both Bombus lucorum and B. hortorum share the COI lineages that were recorded as widespread throughout Eurasia, from the European countries across Russia to China and Japan. The findings presented here highlight that the bumblebee fauna of Iceland comprises mainly widespread ubiquitous lineages that arrived via natural or human-mediated dispersal events from the British Isles or the mainland.

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An integrative taxonomic approach confirms the valid status of Bombus glacialis, an endemic bumblebee species of the High Arctic

Cited by 20 publications

References 48 publications

Pollinators on the polar edge of the Ecumene: taxonomy, phylogeography, and ecology of bumble bees from Novaya Zemlya

Pollinators on the polar edge of the Ecumene: taxonomy, phylogeography, and ecology of bumble bees from Novaya Zemlya

Adding attractive semio-chemical trait refines the taxonomy of Alpinobombus (Hymenoptera: Apidae)

Widespread continental mtDNA lineages prevail in the bumblebee fauna of Iceland

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