Climate change impacts on bumblebees converge across continents

Kerr, Jeremy T.; Pindar, Alana; Galpern, Paul; Packer, Laurence; Potts, Simon G.; Roberts, Stuart M.; Rasmont, Pierre; Schweiger, Oliver; Colla, Sheila R.; Richardson, Leif L.; Wagner, David L.; Gáll, Lawrence F.; Sikes, Derek S.; Pantoja, Alberto

doi:10.1126/science.aaa7031

Cited by 641 publications

(621 citation statements)

References 48 publications

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“…Recent reviews of pollinator declines are leaning toward the position that multiple stressors acting in concert are likely causing pollinator decline worldwide (36). These stressors include other pathogens reported from commercially produced bumble bee colonies (28,37), loss of floral and nesting resources, agrochemicals, and changing climate (36,38). Increasing physiological stress attributable to environmental degradation is likely to enhance the effects of pathogens.…”

Section: Resultsmentioning

confidence: 99%

Test of the invasive pathogen hypothesis of bumble bee decline in North America

Cameron

Lim

Lozier

et al. 2016

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

115

111

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Emergent fungal diseases are critical factors in global biodiversity declines. The fungal pathogen Nosema bombi was recently found to be widespread in declining species of North American bumble bees (Bombus), with circumstantial evidence suggesting an exotic introduction from Europe. This interpretation has been hampered by a lack of knowledge of global genetic variation, geographic origin, and changing prevalence patterns of N. bombi in declining North American populations. Thus, the temporal and spatial emergence of N. bombi and its potential role in bumble bee decline remain speculative. We analyze Nosema prevalence and genetic variation in the United States and Europe from 1980, before an alleged introduction in the early 1990s, to 2011, extracting Nosema DNA from Bombus natural history collection specimens from across this time period. Nosema bombi prevalence increased significantly from low detectable frequency in the 1980s to significantly higher frequency in the mid- to late-1990s, corresponding to a period of reported massive infectious outbreak of N. bombi in commercial bumble bee rearing stocks in North America. Despite the increased frequency, we find no conclusive evidence of an exotic N. bombi origin based on genetic analysis of global Nosema populations; the widespread Nosema strain found currently in declining United States bumble bees was present in the United States before commercial colony trade. Notably, the US N. bombi is not detectably different from that found predominantly throughout Western Europe, with both regions characterized by low genetic diversity compared with high levels of diversity found in Asia, where commercial bee breeding activities are low or nonexistent.

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Section: Resultsmentioning

confidence: 99%

Test of the invasive pathogen hypothesis of bumble bee decline in North America

Cameron

Lim

Lozier

et al. 2016

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

115

111

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“…Museum specimen data can be used to understand ecological changes among extant organisms over a long time span, sometimes as long as a century (Bartomeus et al 2011;Kerr et al 2015). However, few taxa are sampled densely enough across time and space to allow rigorous analyses that provide reliable answers to climate change questions.…”

Section: Historic Versus Modern Data -Bees and Butterfliesmentioning

confidence: 99%

The value of museums in the production, sharing, and use of entomological data to document hyperdiversity of the changing North

et al. 2017

Self Cite

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If the current rate of climate change continues, the composition, distribution, and relative population sizes of species in the higher latitudes of the Northern Hemisphere are likely to change considerably. Understanding the magnitude of this change requires a well-documented baseline against which to compare. Although specimen-less observations can help augment such a baseline for the minority of organisms that can be confidently identified in the field or from photographs, the vast majority of species are small-bodied invertebrates, primarily arthropods, that can only be identified from preserved specimens and (or) their tissues. Museum staff archive specimens and make them and their data available for research. This paper describes a number of challenges to the goal of thorough documentation of high-latitude arthropod biodiversity and their potential solutions. Examples are provided from ongoing and recently completed research that demonstrates the value of museum specimens and the sharing of their data via global portals like GBIF.org.Key words: Arctic, biodiversity, Arthropoda, monitoring, inventory, taxonomic bottleneck.Résumé : Si le taux actuel du changement climatique se maintient, la composition, la répar-tition et les tailles de population relatives d'espèces dans les latitudes plus hautes de l'hémi-sphère nord sont susceptibles de changer considérablement. Pour comprendre l'ampleur de ce changement, il faut une ligne de référence bien documentée contre laquelle on peut comparer. Bien que les observations sans spécimens puissent aider à augmenter une telle ligne de référence pour la minorité d'organismes qui peuvent être identifiés avec assurance sur le terrain ou à partir de photographies, la grande majorité d'espèces est composée d'inverté-brés à petit corps, principalement des arthropodes, qui ne peuvent être identifiés qu'à partir de spécimens préservés et (ou) de leurs tissus. Le personnel de musées archive les spécimens et les rend disponibles ainsi que les données connexes aux fins de recherche. Dans cet article, on décrit un certain nombre de défis à l'encontre du but de la documentation minutieuse de la biodiversité d'arthropodes à hautes latitudes et les solutions potentielles à ces défis. On fournit des exemples de recherche en cours et récemment complétée qui démontr-ent la valeur de spécimens de musée et le partage de données via des portails mondiaux comme le Système mondial d'informations sur la biodiversité (GBIF.org).

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“…Para algumas espécies de abelhas, já existem evidências de alteração na distribuição geográfica. Por exemplo, algumas espécies do gênero Bombus na Europa e Estados Unidos têm migrado para regiões de maior altitude, que são mais frias (Kerr et al, 2015). Análises de cenário futuro sobre a distribuição geográfica de espécies do gênero Centris e Melipona, no Brasil, indicam que haverá uma redução das áreas de abrangência destas espécies até 2080, em comparação às projeções atuais (Giannini et al, 2015b).…”

Section: Mudanças Climáticasunclassified

Enfraquecimento e perda de colônias de abelhas no Brasil: há casos de CCD?

Pires

Pereira

Lopes

et al. 2016

Pesq. agropec. bras.

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Resumo -Nas últimas décadas, o declínio de populações de abelhas silvestres e o colapso de colônias de Apis mellifera têm preocupado pesquisadores e apicultores. O objetivo deste artigo de revisão foi compilar alguns dos estudos mais relevantes relacionados às possíveis causas desses problemas -como nutrição, manejo, patógenos, parasitas e efeitos de agrotóxicos -, além de apresentar um breve histórico da síndrome "colony collapse disorder" (CCD) nos Estados Unidos e na Europa. Abordaram-se com mais detalhes os estudos desenvolvidos no Brasil, principalmente sobre agrotóxicos utilizados na agricultura e patógenos e parasitas que acometem as colônias de A. mellifera africanizada. Casos de enfraquecimento, declínio e colapso têm sido registrados, principalmente nos estados de São Paulo e Santa Catarina, que somam grandes perdas. Resultados das ocorrências analisadas indicaram que as mortalidades em massa registradas no Brasil não estavam associadas a patógenos ou a parasitas. Somente dois casos com características semelhantes às descritas para CCD foram registrados, porém sem causas definidas. Para que se conheçam as causas de enfraquecimentos e perdas de colônias de abelhas, é urgente a implementação de programas oficiais de levantamento sistemático da sanidade apícola, associados a pesquisas com foco nas avaliações dos possíveis impactos da fragmentação de habitats e das práticas agrícolas sobre as comunidades de abelhas.Termos para indexação: Apis mellifera, abelha africanizada, distúrbio do colapso das colônias, nutrição de abelhas, patologia apícola, polinização. Weakness and collapse of bee colonies in Brazil: are there cases of CCD?Abstract -In the last decades, the decline of wild bee populations and the collapse of Apis mellifera colonies have concerned researchers and beekeepers. The objective of this review was to compile some of the most relevant studies related to the possible causes of these problems -such as nutrition, management, pathogens, parasites, and the effects of pesticides -, besides presenting a brief history of the colony collapse disorder syndrome (CCD) in the United States and Europe. The studies developed in Brazil were presented in more detail, mainly those on pesticides used in agriculture and on pathogens and parasites that attack the colonies of Africanized A. mellifera. Cases of weakening, decline, and collapse have been recorded in Brazil, mainly in the states of São Paulo and Santa Catarina, which add up to great losses. Results of the analyzed occurrences indicated that the recorded mass mortalities were not associated with pathogens or parasites. Only two cases with characteristics similar to those described for CCD were recorded, but without defined causes. In order to know the causes of the weakening and collapses of colonies, the implementation of official programs is urgent for the systematic survey of bee health, associated with research focusing on assessments of possible impacts of habitat fragmentation and agricultural practices on bee communities.

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Climate change impacts on bumblebees converge across continents

Cited by 641 publications

References 48 publications

Test of the invasive pathogen hypothesis of bumble bee decline in North America

Test of the invasive pathogen hypothesis of bumble bee decline in North America

The value of museums in the production, sharing, and use of entomological data to document hyperdiversity of the changing North

Enfraquecimento e perda de colônias de abelhas no Brasil: há casos de CCD?

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