Jason Gibbs

Jason Gibbs
University of Manitoba | UMN · Department of Entomology

PhD, MSc, BSc

About

152
Publications
56,804
Reads
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4,359
Citations
Introduction
My research focuses on the systematics and diversity of wild bees. Current research projects include integrative taxonomy of the genus Lasioglossum in North America, molecular phylogenetics of halictid bees and the evolution of social behaviour, and habitat management effects on wild bee diversity. More details can be found at these sites: http://umanitoba.ca/faculties/afs/dept/entomology/personnel/Gibbs.html https://sites.google.com/site/dialictus/ http://www.wallisroughley.ca/
Additional affiliations
December 2016 - present
University of Manitoba
Position
  • Professor (Assistant)
December 2016 - present
University of Manitoba
Position
  • Professor (Assistant)
Description
  • ENTM 1000: World of Bugs (taught jointly) ENTM 3170: Crop Protection Entomology ENTM 4500: Insect taxonomy and morphology ENTM 7150 / ENTM 7220: Advanced Entomology (taught jointly) ENTM 7200: Advanced insect taxonomy
March 2013 - November 2016
Michigan State University
Position
  • Research Associate
Education
September 2004 - November 2009
York University
Field of study
  • Biology
September 2002 - October 2004
University of Toronto
Field of study
  • Botany
September 1998 - June 2002
University of Toronto
Field of study
  • Biology

Publications

Publications (152)
Article
Full-text available
The black species of weak-veined Lasioglossum (or Hemihalictus series) in eastern North America are revised to clarify their taxonomy and nomenclature and to facilitate identification. A subgeneric classification based upon available phylogenetic data is applied. Lasioglossum (Sphecodogastra) is applied more broadly than any previous usage to inclu...
Article
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Wild bees are highly valuable pollinators. Along with managed honey bees, they provide a critical ecosystem service by ensuring stable pollination to agriculture and wild plant communities. Increasing concern about the welfare of both wild and managed pollinators, however, has prompted recent calls for national evaluation and action. Here, for the...
Article
Full-text available
Highbush blueberry yields are dependent on pollination by bees, and introduction of managed honey bees is the primary strategy used for pollination of this crop. Complementary pollination services are also provided by wild bees, yet highbush blueberry is increasingly grown in regions outside its native range where wild bee communities may be less a...
Article
Full-text available
Sweat bees in the subgenus Lasioglossum (Dialictus) are one of the most diverse and abundant bee taxa, and a critically important component of bee biodiversity. Yet, the most basic taxonomic knowledge of these bees is lacking in many regions. As a step towards a better understanding of the L. (Dialictus) of the western Nearctic region, a revision o...
Article
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Mason bees (Megachilidae: Osmia) are alternative managed pollinators with the potential to supplement pollination by honey bees in many crops. However, challenges for their management in orchards still remain. If nesting conditions are not optimal, females can show high dispersion rates, which decrease their economic viability at commercial scales....
Article
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The new species and the first halictid bees documented from Saint Lucia Habralictus reinae , Lasioglossum (Dialictus) luciae, and L. (Habralictellus) delphiae are described. A fourth species, L. (D.) dominicense, is tentatively recorded from the island. The species are illustrated and compared to similar ones from the Lesser Antilles. Lasioglossum...
Article
Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are rarely available, we are limited in our capacity to understand the variation in pollination benefits to crop y...
Article
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Abstract Sex‐associated differences in behavior can have large ecological consequences, especially in plant–pollinator communities where floral visitor behavior affects plant reproduction. Whether these differences are prevalent enough to impact community‐level processes, however, is unknown. Using 256 plant–pollinator communities, we built network...
Article
A revised key to the 94 species of Lasioglossum ( Dialictus ) currently known to occur in Canada is presented, incorporating new species and taxonomic updates since the publication of the first key in 2010. Two new species, Lasioglossum ( Dialictus ) immigrans and Lasioglossum ( Dialictus ) onuferkoi , are described from Canada. Lasioglossum ( D .)...
Article
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Wild bees are major contributors to pollination of economically important crops. However, widespread habitat conversion to agriculture and pesticide exposure are associated with declines in wild bee abundance and biodiversity. A growing number of studies have investigated the incorporation of a variety of flower species in agroecosystems to augment...
Preprint
Full-text available
The bee family Halictidae is considered to be an optimal model for the study of social evolution due to its remarkable range of social behaviors. Past studies in circadian rhythms suggest that social species may express more diversity in circadian behaviors than solitary species. However, these previous studies did not make appropriate taxonomic co...
Article
Despite concerns about the status of wild bees, there have been few studies with repeated sampling of these insects at the same locations using the same method. There is an urgent need for longitudinal studies to understand species- and population-level dynamics and the drivers of change, especially in pollinator-dependent crop systems. We sampled...
Article
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Fire and grazing are historic ecosystem drivers of tallgrass prairie and both are used for restoration management today. The effects of these drivers on animal taxa are still incompletely resolved, especially for wild bees, a growing conservation and restoration priority. Fire and grazing could affect wild bee communities through structural changes...
Article
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Bumble bees (Bombus) are a group of eusocial bees with a strongly generalised feeding pattern, collecting pollen from many different botanical families. Though predominantly generalists, some bumble bee species seem to have restricted dietary choices. It is unclear whether restricted diets in bumble bees are inherent or a function of local conditio...
Preprint
Full-text available
Installing pollinator habitat is a ubiquitous conservation tool, but little is known about which pollinator taxa require support, or which benefit from habitat installations. We studied the response of rare and common bees to pollinator habitat enhancement. We used independent regional datasets to designate bee species as common or rare based on th...
Article
Bees serve an important role as pollinators and are a fundamental part of an ecosystem's biodiversity. However, the current conservation status of many bee species is largely unknown. We surveyed the wild bee species in and around Thunder Bay, a city in northwestern Ontario, Canada. The wild bee species in this region have not been fully documented...
Article
Epeoloides pilosulus (Cresson) (Hymenoptera: Apidae) is an exceptionally rare bee of conservation concern. Epeoloides are cleptoparasites of the oil-collecting bees Macropis (Hymenoptera: Melittidae), which specialize on oil-producing species in the genus Lysimachia (Ericales: Primulaceae). We report on the first records of E. pilosulus in Manitoba...
Article
Ecological restoration is a global priority, with potential to reverse biodiversity declines and promote ecosystem functioning. Yet, successful restoration is challenged by lingering legacies of past land-use activities, which are pervasive on lands available for restoration. Although legacies can persist for centuries following cessation of human...
Article
Full-text available
Restored habitats require long-term management to maintain biodiversity and ensure ecosystem functions. Management strategies are often developed for plant communities, including through seeding and disturbance management, but these actions are taken with a focus on plant dynamics and with little knowledge of the effects on non-plant organisms. Wil...
Article
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Climate change is shifting the environmental cues that determine the phenology of interacting species. Plant–pollinator systems may be susceptible to temporal mismatch if bees and flowering plants differ in their phenological responses to warming temperatures. While the cues that trigger flowering are well‐understood, little is known about what det...
Article
Despite their miniature brains, insects exhibit substantial variation in brain size. Although the functional significance of this variation is increasingly recognized, research on whether differences in insect brain sizes are mainly the result of constraints or selective pressures has hardly been performed. Here, we address this gap by combining pr...
Article
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Most of the world’s crops depend on pollinators, so declines in both managedand wild bees raise concerns about food security. However, the degree towhich insect pollination is actually limiting current crop production ispoorly understood, as is the role of wild species (as opposed to managed hon-eybees) in pollinating crops, particularly in intensi...
Article
Most of the world's crops depend on pollinators, so declines in both managed and wild bees raise concerns about food security. However, the degree to which insect pollination is actually limiting current crop production is poorly understood, as is the role of wild species (as opposed to managed honeybees) in pollinating crops, particularly in inten...
Article
Full-text available
Checklists provide information about the species found in a defined region and serve as baselines for detecting species range expansions, contractions, or introductions. Bees are a diverse and important group of insect pollinators. Although some bee populations are declining, these patterns are difficult to document and generalize due to a lack of...
Article
Plant-pollinator interactions are partially driven by the expression of plant traits that signal and attract bees to the nutritional resources within flowers. Although multiple physical and chemical floral traits are known to influence the visitation patterns of bees, how distinct bee groups vary in their responses to floral traits has yet to be el...
Article
Full-text available
Plant-pollinator interactions are partially driven by the expression of plant traits that signal and attract bees to the nutritional resources within flowers. Although multiple physical and chemical floral traits are known to influence the visitation patterns of bees, how distinct bee groups vary in their responses to floral traits has yet to be el...
Article
Full-text available
Here we present a checklist of the bee species found on the C. Hart Merriam elevation gradient along the San Francisco Peaks in northern Arizona. Elevational gradients can serve as natural proxies for climate change, replacing time with space as they span multiple vegetation zones over a short geographic distance. Describing the distribution of bee...
Article
A new species of colletid bee, Hylaeus (Hylaeana) dominicalis Gibbs, new species, is described and figured from the Commonwealth of Dominica. The new species can be distinguished from consubgeneric species in the Caribbean Islands based on the integumental coloration, facial fovea, and pubescence. A list of all known Hylaeus from the Caribbean Isla...
Preprint
ABSTRACT Efforts to inventory and monitor bee diversity would benefit from a map of zoogeographic divisions, which might be established independently through modelling the distribution of DNA-derived species proxies. We establish molecular operational taxonomic units (MOTU) for bees sequenced for two genes from climatically disparate sites througho...
Article
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Supporting ecosystem services and conserving biodiversity may be compatible goals, but there is concern that service‐focused interventions mostly benefit a few common species. We use a spatially replicated, multiyear experiment in four agricultural settings to test if enhancing habitat adjacent to crops increases wild bee diversity and abundance on...
Article
The halictid bee fauna of the West Indies is poorly documented, especially for species of LasioglossumCurtis, 1833. More information regarding the ranges and distributions of these species among the islands is needed for understanding historical biogeography and for bee conservation efforts. Here we report new distributional records in the U.S. and...
Article
The biodiversity‐centered approach to conservation prioritizes rare species, whereas the ecosystem services approach prioritizes species that provide services to people. The two approaches align when rare species provide ecosystem services, or when both groups of species benefit from the same management action. We use data on bee pollinators and th...
Article
Full-text available
Epeoloides pilosulus (Cresson 1878) (Hymenoptera: Apidae) is one of the rarest bees in North America with only a handful of records since 1960. Epeoloides pilosulus is a brood parasite of Macropis bees, which until recently had not been collected in Michigan since 1944. Bee surveys in Midland County, Michigan have led to the rediscovery of E. pilos...
Article
Longleaf pine savannas are highly threatened, fire‐maintained ecosystems unique to the southeastern United States. Fire suppression and conversion to agriculture has strongly affected this ecosystem, altering overstory canopies, understory plant communities, and animal populations. Tree thinning to reinstate open canopies can benefit understory pla...
Article
Full-text available
Habitat loss and degradation due to agricultural intensification and urbanization are key threats facing wild pollinators, especially bees. However, data on the distribution and abundance of most of the world's 20,000+ bee species is lacking, making it difficult to assess the effects of anthropogenic disturbance through time. Moreover, there are ge...
Article
The negative effects of landscape simplification on bee communities are well documented. To reverse these effects, flowering habitat enhancements are designed to provide supplemental nutritional resources for wild bees and are particularly important when few resources are available in the surrounding landscape. Yet, it is not known whether or how h...
Article
Full-text available
ContextThe response of rare species to human land use is poorly known because rarity is difficult to study; however, it is also important because rare species compose most of biodiversity, and are disproportionately vulnerable. Regional bee pollinator faunas have not been assessed for rarity outside of Europe. Therefore, we do not know to what exte...
Article
Full-text available
1.Individual pollinators that specialize on one plant species within a foraging bout transfer more conspecific and less heterospecific pollen, positively affecting plant reproduction. However, we know much less about pollinator specialization at the scale of a foraging bout compared to specialization by pollinator species. 2.In this study, we measu...
Article
Full-text available
Many species of bumble bee (Bombus) have declined in range and abundance across Europe, the Americas, and Asia, whereas other species have persisted and remain common and widespread. One explanation as to why some species have declined, based primarily on studies of the European bumble bee fauna, is that declining species have relatively narrow pol...
Article
Full-text available
Analysis of functional trait composition can provide insights into effects of habitat alteration on ecological functioning of particular taxa. However, assessments of functional trait composition may be affected by the sampling methodology used. We assessed functional trait composition of bees (Hymenoptera: Apoidea: Anthophila) collected using 4 sa...
Article
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Halictus hedini hedini Blüthgen is newly recorded from Japan. The species had been previously mistaken for the Holarctic species H. rubicundus (Christ), which is removed from the Japanese fauna. Halictus hedini hedini was previously known from Eastern and Central Asia. Halictus hedini hedini is similar to H. rubicundus, but is separated by the firs...
Article
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Land-use change threatens global biodiversity and may reshape the tree of life by favoring some lineages over others. Whether phylogenetic diversity loss compromises ecosystem service delivery remains unknown. We address this knowledge gap using extensive genomic, community, and crop datasets to examine relationships among land use, pollinator phyl...
Article
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[This corrects the article DOI: 10.1371/journal.pone.0151482.].
Article
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Aim Land use change reorganizes local communities, resulting in complex changes in biodiversity at larger scales. The biotic homogenization hypothesis predicts that the replacement of sensitive loser species with widespread winner species will lead to loss of beta diversity and ultimately loss of regional diversity at multiple levels of ecological...
Article
Wild bee populations have undergone declines in recent years across much of the Western world, and these declines have the potential to limit yield in pollination‐dependent crops. Highbush blueberry, Vaccinium corymbosum, and tart cherry, Prunus cerasus, are spring‐blooming crops that rely on the movement of pollen by bees and other insects for pol...
Article
Full-text available
Human land use, including agriculture, is a leading contributor to declining biodiversity worldwide and can leave long‐lasting legacies on ecosystems after cessation. Ecological restoration is an approach to mitigate these impacts. However, little is known about how animal communities and plant–animal interactions respond to the combined effects of...
Article
Full-text available
In response to growing concerns surrounding pollinator health, there have been increased efforts to incorporate wildflower habitat into land management programs, particularly in agricultural systems dependent on bee-mediated pollination. While recommended plant lists abound, there is limited research on which plant species support the greatest bee...
Article
Ecologists have shown through hundreds of experiments that ecological communities with more species produce higher levels of essential ecosystem functions such as biomass production, nutrient cycling, and pollination, but whether this finding holds in nature (that is, in large-scale and unmanipulated systems) is controversial. This knowledge gap is...
Article
Full-text available
The species of Lasioglossum from Greater Puerto Rico are reviewed. Nine species are recognized, including five new species described herein: Lasioglossum (Dialictus) genaroi sp. nov., L. (D.) dispersum sp. nov., L. (D.) enatum sp. nov., L. (D.) monense sp. nov. and L. (D.) amona sp. nov. The latter two are known only from Mona Island. Keys and imag...
Article
North American Midwestern oak (Quercus spp.) savannas are rare fire-dependent ecosystems that can support high levels of biodiversity and are the focus of considerable restoration effort due to widespread fire suppression. Due to the predominance of understory forbs in oak savannas, many of which require insect pollination, restoration practices sh...
Article
There is an ongoing campaign to DNA barcode the world's >20,000 bee species. Recent revisions of Lasioglossum ( Dialictus ) (Hymenoptera: Halictidae) for Canada and the eastern United States were completed using integrative taxonomy. DNA barcode data from 110 species of L . ( Dialictus ) are examined for their value in identification and discoverin...
Article
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We surveyed bees inhabiting inland dune and ridge woodlands at 30 sites in Worcester County, MD, in 2008 and 2009 . We collected and identified 4878 bees representing 5 families, 31 genera, and 121 species. Here, we report data on annual and seasonal variation. Expanding survey efforts to include multiple years and seasons served to increase the ov...
Article
The state of Michigan occupies an area between the Great Plains and the northeastern United States, bordering four Great Lakes, with diverse biogeographical regions. Michigan also has the second most diverse agriculture in the country, with many crops that depend on bees for pollination. This unique combination provides a wide range of opportunitie...
Article
Bees (Hymenoptera: Apoidea, Apiformes) are taxonomically and ecologically diverse, with a wide range of social complexity, nesting preferences, floral associations, and biogeographic restrictions. A Canadian bee checklist, greatly assisted by the gene-assisted approach of DNA barcoding, is nearing completion. Previous evaluation of bee diversity in...
Article
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Notes on the nesting biology of two ground-nesting bee species are provided from Central Michigan. A single nest of Augochloropsis metallica (Fabricius) fulgida (Smith) was excavated on 12 July 2014 in Shiawassee County. There were two female nest inhabitants. Examination of mandibular wear, wing wear and ovarial development suggests one female was...
Technical Report
Full-text available
Many of the fruits, nuts, vegetables and herb crops that provide us with important nutrients depend on animal pollination to produce marketable and profitable yields. These pollinators move pollen from the male parts of crop flowers to the female parts of crop flowers, pollinating crop flowers. Fertilized crop flowers create seeds that are sometime...