Documenting Persistence of Most Eastern North American Bee Species (Hymenoptera: Apoidea: Anthophila) to 1990–2009

Colla, Sheila R.; Ascher, John S.; Arduser, Michael; Cane, James H.; Deyrup, Mark; Droege, Sam; Gibbs, Jason; Griswold, Terry; Hall, H. Glenn; Henne, Christopher; Neff, James Alan; Jean, Robert P.; Rightmyer, Molly G.; Sheffield, Cory S.; Veit, Michael F.; Wolf, Amy

doi:10.2317/jkes110726.1

Cited by 34 publications

(25 citation statements)

References 17 publications

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“…Unfortunately, no recently collected material was available for barcode sequencing, and the specimens seen are all from the early 1900s. The absence of this species from recent collections has not gone unnoticed (e.g in Colla et al 2012 it is listed among the bee species not collected since 1990). Increased urbanization in and around Washington D.C. may have resulted in the extirpation of this species there, and perhaps it has even disappeared entirely throughout its earlier range.…”

Section: Taxonomymentioning

confidence: 99%

A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae)

Onuferko¹

2018

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Herein, the cleptoparasitic (cuckoo) bee genus Epeolus (Hymenoptera: Apidae) is revised for species occurring in North America, north of Mexico, and an updated checklist of all species known to occur in Canada and the United States of America is provided with comprehensive descriptions, diagnoses, and a single dichotomous key (using the same couplets for both sexes) to aid in their identification. To increase their recognition among North American naturalists, English common names are also proposed for all North American Epeolus. A total of 43 species is confirmed as present in the region, 15 of which are newly recognized. The following new species are proposed based on unique morphological (and in most cases also molecular) attributes: E. andriyi sp. n., E. attenboroughi sp. n., E. axillaris sp. n., E. basili sp. n., E. brumleyi sp. n., E. chamaesarachae sp. n., E. deyrupi sp. n., E. diadematus sp. n., E. ferrarii sp. n., E. gibbsi sp. n., E. inornatus sp. n., E. nebulosus sp. n., E. packeri sp. n., E. splendidus sp. n., and E. tessieris sp. n. Of the 15, six (E. axillaris, E. brumleyi, E. chamaesarachae, E. diadematus, E. splendidus, and E. tessieris) were identified as new species under different names (nomina nuda) in an M.Sc. thesis by Richard L. Brumley in 1965, but until now they have not been formally described. Detailed morphological comparisons with some evidence from DNA barcoding support the following synonymies, one of which C was first proposed by Brumley (1965): a) E. melectimimus Cockerell and Sandhouse, syn. n., under E. asperatus Cockerell; b) E. crucis Cockerell, syn. n., under E. compactus Cresson; c) E. mesillae palmarum Linsley, syn. n., under E. mesillae (Cockerell); and d) E. weemsi Mitchell, syn. n., and e) E. vernalis Mitchell, syn. n., under E. ilicis Mitchell. Only one member of the almost entirely Neotropical “Trophocleptria group” (Epeolus bifasciatus Cresson) is confirmed as occurring north of Mexico, and is widespread East of the Rocky Mountains. Known floral associations are indicated for each species, as are suspected or known host species of Colletes Latreille. Evidence is presented that suggests further investigation into the possible synonymy of Colletes wickhami Timberlake under C. scopiventer Swenk is warranted.

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Section: Taxonomymentioning

confidence: 99%

A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae)

Onuferko¹

2018

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“…Many other species with significant declining trends are common and are still collected regularly, but nevertheless should be monitored because such slow declines could be taken as an early warning signal of imperilment. Last, nine of the 87 rare species (defined as having 10 < n < 30 specimens; all of these species were excluded in our species-level analysis because of inadequate sample size) have not been recorded from the past 10 years (these are listed in Table S1) (24). Furthermore, our failure to detect particular species in the most recent period is conservative because the greatest collection effort took place during this period (Fig.…”

Section: Changes In Compositionmentioning

confidence: 99%

Historical changes in northeastern US bee pollinators related to shared ecological traits

Bartomeus

Ascher

Gibbs

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

478

442

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Pollinators such as bees are essential to the functioning of terrestrial ecosystems. However, despite concerns about a global pollinator crisis, long-term data on the status of bee species are limited. We present a long-term study of relative rates of change for an entire regional bee fauna in the northeastern United States, based on >30,000 museum records representing 438 species. Over a 140-y period, aggregate native species richness weakly decreased, but richness declines were significant only for the genus Bombus. Of 187 native species analyzed individually, only three declined steeply, all of these in the genus Bombus. However, there were large shifts in community composition, as indicated by 56% of species showing significant changes in relative abundance over time. Traits associated with a declining relative abundance include small dietary and phenological breadth and large body size. In addition, species with lower latitudinal range boundaries are increasing in relative abundance, a finding that may represent a response to climate change. We show that despite marked increases in human population density and large changes in anthropogenic land use, aggregate native species richness declines were modest outside of the genus Bombus. At the same time, we find that certain ecological traits are associated with declines in relative abundance. These results should help target conservation efforts focused on maintaining native bee abundance and diversity and therefore the important ecosystems services that they provide.bee declines | global change | pollination

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“…Although no species that were historically known east of the Mississippi River appear to have gone extinct in the past 20 years (Colla et al . ), large‐scale landscape changes over the past 30 years suggest that bee populations native to areas where agricultural land use is particularly high may be severely affected (Koh et al . ).…”

mentioning

confidence: 99%

Interest exceeds understanding in public support of bee conservation

Wilson

Forister

Carril

2017

Frontiers in Ecol & Environ

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Recent analyses suggesting that certain populations of bees may be declining have led to a variety of conservation efforts, many of which rely on public support and participation. However, little is known about the public's knowledge of bee diversity. We carried out a survey to measure public understanding of bee diversity and found that although 99% of respondents believed that bees are critical or important, only 14% were able to guess within 1000 the actual number of bee species in the US. Furthermore, when reviewing a selection of photographs depicting various insects, many respondents were unable to discern bees from non-bees. Our findings show that even as scientific research on bees has rapidly expanded, the public remains largely uninformed on the subject, especially with regard to the wealth of bee diversity in the US. In light of the fact that conservation efforts require substantial public support, any programs aimed at stopping or mitigating bee population declines will need to include outreach and education measures.

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Documenting Persistence of Most Eastern North American Bee Species (Hymenoptera: Apoidea: Anthophila) to 1990–2009

Cited by 34 publications

References 17 publications

A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae)

A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae)

Historical changes in northeastern US bee pollinators related to shared ecological traits

Interest exceeds understanding in public support of bee conservation

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