A simple and distinctive microbiota associated with honey bees and bumble bees
- V. Martinson, B. Danforth, R. Minckley, O. Rueppell, S. Tingek, N. Moran
- Biology, Environmental ScienceMolecular Ecology
- 1 February 2011
It is found that most bee species lack phylotypes that are the same or similar to those typical of A. mellifera, rejecting the hypothesis that this dietary transition was symbiont‐dependent and potentially key to the maintenance of a more consistent gut microbiota.
A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems.
- C. Kennedy, E. Lonsdorf, C. Kremen
- Environmental ScienceEcology Letters
- 1 May 2013
This synthesis reveals that pollinator persistence will depend on both the maintenance of high-quality habitats around farms and on local management practices that may offset impacts of intensive monoculture agriculture.
Elongation factor-1 alpha occurs as two copies in bees: implications for phylogenetic analysis of EF-1 alpha sequences in insects.
- B. Danforth, S. Ji
- BiologyMolecular biology and evolution
- 1 March 1998
The hypothesis of parallel gene duplication is supported both by congruence among nucleotide and amino acid data sets and by topology-dependent permutation tail probability tests: that EF-1 alpha underwent parallel gene duplications in the Diptera and the Hymenoptera.
The history of early bee diversification based on five genes plus morphology
- B. Danforth, S. Sipes, Jennifer Fang, S. Brady
- BiologyProceedings of the National Academy of Sciences
- 10 October 2006
This work reconstructed a robust phylogeny of bees at the family and subfamily levels using a data set of five genes (4,299 nucleotide sites) plus morphology (109 characters) and suggested an African origin for bees, because the earliest branches of the tree include predominantly African lineages.
Historical changes in northeastern US bee pollinators related to shared ecological traits
- I. Bartomeus, J. Ascher, R. Winfree
- Environmental ScienceProceedings of the National Academy of Sciences
- 4 March 2013
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 shows 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.
Analysis of family-level relationships in bees (Hymenoptera: Apiformes) using 28S and two previously unexplored nuclear genes: CAD and RNA polymerase II.
- B. Danforth, Jennifer Fang, S. Sipes
- BiologyMolecular Phylogenetics and Evolution
- 1 May 2006
Evolution of sociality in a primitively eusocial lineage of bees
- B. Danforth
- BiologyProceedings of the National Academy of Sciences…
- 26 December 2001
It is shown that eusociality has arisen only three times within halictid bees (contrary to earlier estimates of six or more origins), and reversals from eUSocial to solitary behavior have occurred as many as 12 times, indicating that social reversals are common in the earliest stages of eussocial evolution.
Comprehensive phylogeny of apid bees reveals the evolutionary origins and antiquity of cleptoparasitism
- S. Cardinal, J. Straka, B. Danforth
- BiologyProceedings of the National Academy of Sciences
- 30 August 2010
The phylogenetic analysis of the Apidae sheds light on the macroevolution of a bee family that is of evolutionary, ecological, and economic importance and indicates that 99% of cleptoparasitic apid bees form a monophyletic group.
Delivery of crop pollination services is an insufficient argument for wild pollinator conservation
- D. Kleijn, R. Winfree, S. Potts
- Environmental ScienceNature Communications
- 16 June 2015
It is shown that, while the contribution of wild bees to crop production is significant, service delivery is restricted to a limited subset of all known bee species, suggesting that cost-effective management strategies to promote crop pollination should target a different set of species than management Strategies to promote threatened bees.
Single-copy nuclear genes recover cretaceous-age divergences in bees.
- B. Danforth, S. Brady, S. Sipes, A. Pearson
- BiologySystematic Biology
- 1 April 2004
The results indicate that each of the four subfamilies arose well before the Cretaceous-Tertiary boundary and suggest that the early radiation of halictid bees involved substantial African-South American interchange roughly coincident with the separation of these two continents in the late Cret Jurassic.
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