@article{eyer_matsuura_vargo_kobayashi_yashiro_suehiro_himuro_yokoi_guenard_dunn_et al._2018, title={Inbreeding tolerance as a pre-adapted trait for invasion success in the invasive ant Brachyponera chinensis}, volume={27}, ISSN={["1365-294X"]}, DOI={10.1111/mec.14910}, abstractNote={AbstractIdentifying traits that facilitate species introductions and successful invasions of ecosystems represents a key issue in ecology. Following their establishment into new environments, many non‐native species exhibit phenotypic plasticity with post‐introduction changes in behaviour, morphology or life history traits that allow them to overcome the presumed loss of genetic diversity resulting in inbreeding and reduced adaptive potential. Here, we present a unique strategy in the invasive ant Brachyponera chinensis (Emery), in which inbreeding tolerance is a pre‐adapted trait for invasion success, allowing this ant to cope with genetic depletion following a genetic bottleneck. We report for the first time that inbreeding is not a consequence of the founder effect following introduction, but it is due to mating between sister queens and their brothers that pre‐exists in native populations which may have helped it circumvent the cost of invasion. We show that a genetic bottleneck does not affect the genetic diversity or the level of heterozygosity within colonies and suggest that generations of sib‐mating in native populations may have reduced inbreeding depression through purifying selection of deleterious alleles. This work highlights how a unique life history may pre‐adapt some species for biological invasions.}, number={23}, journal={MOLECULAR ECOLOGY}, author={Eyer, Pierre-Andre and Matsuura, Kenji and Vargo, Edward L. and Kobayashi, Kazuya and Yashiro, Toshihisa and Suehiro, Wataru and Himuro, Chihiro and Yokoi, Tomoyuki and Guenard, Benoit and Dunn, Robert R. and et al.}, year={2018}, month={Dec}, pages={4711–4724} }
 @article{guénard_cardinal-de casas_dunn_2014, title={High diversity in an urban habitat: are some animal assemblages resilient to long-term anthropogenic change?}, volume={18}, ISSN={1083-8155 1573-1642}, url={http://dx.doi.org/10.1007/s11252-014-0406-8}, DOI={10.1007/s11252-014-0406-8}, number={2}, journal={Urban Ecosystems}, publisher={Springer Science and Business Media LLC}, author={Guénard, Benoit and Cardinal-De Casas, Adrianna and Dunn, Robert R.}, year={2014}, month={Aug}, pages={449–463} }
 @article{jenkins_guenard_diamond_weiser_dunn_2013, title={Conservation implications of divergent global patterns of ant and vertebrate diversity}, volume={19}, ISSN={["1472-4642"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84880136840&partnerID=MN8TOARS}, DOI={10.1111/ddi.12090}, abstractNote={AbstractAimGlobal conservation planning is often oriented around vertebrates and plants, yet most organisms are invertebrates. To explore the potential conservation implications of this bias, we assessed how well patterns of diversity for an influential group of invertebrates, the ants, correspond with those of three vertebrate groups (birds, mammals and amphibians).LocationGlobal.MethodsWe compiled data on the number of genera of ants and the three vertebrate groups for 370 political regions across the world. We then compared their correlations both for overall diversity and between subsets of genera likely to be of conservation concern. We also developed generalized additive models (GAM) to identify regions where vertebrates and ants diverged in their diversity patterns.ResultsWhile ant and vertebrate diversity do positively correlate, the correlations are substantially weaker for the ant lineages of the greatest conservation concern. Vertebrates also notably fail to predict ant diversity in specific geographic areas, including Australia and Southeast Asia, parts of Africa and Madagascar, and south‐western China. These failures may be genuine differences in diversity patterns, or they may indicate important gaps in our knowledge of ant and vertebrate diversity.Main conclusionsWe conclude that it is currently unwise to assume that global conservation priorities based on vertebrates will conserve ants as well. We suspect that this also applies to other invertebrates.}, number={8}, journal={DIVERSITY AND DISTRIBUTIONS}, author={Jenkins, Clinton N. and Guenard, Benoit and Diamond, Sarah E. and Weiser, Michael D. and Dunn, Robert R.}, year={2013}, month={Aug}, pages={1084–1092} }
 @article{guenard_mcglynn_2013, title={Intraspecific thievery in the ant Ectatomma ruidum is mediated by food availability}, volume={45}, number={4}, journal={Biotropica}, author={Guenard, B. and McGlynn, T. P.}, year={2013}, pages={497–502} }
 @article{lucky_trautwein_guenard_weiser_dunn_2013, title={Tracing the Rise of Ants - Out of the Ground}, volume={8}, ISSN={["1932-6203"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84891337406&partnerID=MN8TOARS}, DOI={10.1371/journal.pone.0084012}, abstractNote={The evolution of ants (Hymenoptera: Formicidae) is increasingly well-understood due to recent phylogenetic analyses, along with estimates of divergence times and diversification rates. Yet, leading hypotheses regarding the ancestral habitat of ants conflict with new findings that early ant lineages are cryptic and subterranean. Where the ants evolved, in respect to habitat, and how habitat shifts took place over time have not been formally tested. Here, we reconstruct the habitat transitions of crown-group ants through time, focusing on where they nest and forage (in the canopy, litter, or soil). Based on ancestral character reconstructions, we show that in contrast to the current consensus based on verbal arguments that ants evolved in tropical leaf litter, the soil is supported as the ancestral stratum of all ants. We also find subsequent movements up into the litter and, in some cases, into the canopy. Given the global importance of ants, because of their diversity, ecological influence and status as the most successful eusocial lineage on Earth, understanding the early evolution of this lineage provides insight into the factors that made this group so successful today.}, number={12}, journal={PLOS ONE}, author={Lucky, Andrea and Trautwein, Michelle D. and Guenard, Benoit S. and Weiser, Michael D. and Dunn, Robert R.}, year={2013}, month={Dec} }
 @article{guenard_dunn_2012, title={A checklist of the ants of China}, number={3558}, journal={Zootaxa}, author={Guenard, B. and Dunn, R. R.}, year={2012}, pages={1-} }
 @article{guenard_mccaffrey_lucky_dunn_2012, title={Ants of North Carolina: An updated list (Hymenoptera: Formicidae)}, number={3552}, journal={Zootaxa}, author={Guenard, B. and Mccaffrey, K. A. and Lucky, A. and Dunn, R. R.}, year={2012}, pages={1–36} }
 @article{guenard_weiser_dunn_2012, title={Global models of ant diversity suggest regions where new discoveries are most likely are under disproportionate deforestation threat}, volume={109}, ISSN={["0027-8424"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84860799321&partnerID=MN8TOARS}, DOI={10.1073/pnas.1113867109}, abstractNote={Most of the described and probably undescribed species on Earth are insects. Global models of species diversity rarely focus on insects and none attempt to address unknown, undescribed diversity. We assembled a database representing about 13,000 records for ant generic distribution from over 350 regions that cover much of the globe. Based on two models of diversity and endemicity, we identified regions where our knowledge of ant diversity is most limited, regions we have called “hotspots of discovery.” A priori, such regions might be expected to be remote and untouched. Instead, we found that the hotspots of discovery are also the regions in which biodiversity is the most threatened by habitat destruction. Our results not only highlight the immediate need for conservation of the remaining natural habitats in these regions, but also the extent to which, by focusing on well-known groups such as vertebrates, we may fail to conserve the far greater diversity of the smaller species yet to be found.}, number={19}, journal={PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA}, author={Guenard, Benoit and Weiser, Michael D. and Dunn, Robert R.}, year={2012}, month={May}, pages={7368–7373} }
 @article{rodriguez-cabal_stuble_guenard_dunn_sanders_2012, title={Disruption of ant-seed dispersal mutualisms by the invasive Asian needle ant (Pachycondyla chinensis)}, volume={14}, ISSN={["1573-1464"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84858002953&partnerID=MN8TOARS}, DOI={10.1007/s10530-011-0097-5}, number={3}, journal={BIOLOGICAL INVASIONS}, author={Rodriguez-Cabal, Mariano A. and Stuble, Katharine L. and Guenard, Benoit and Dunn, Robert R. and Sanders, Nathan J.}, year={2012}, month={Mar}, pages={557–565} }
 @article{jenkins_sanders_andersen_arnan_bruehl_cerda_ellison_fisher_fitzpatrick_gotelli_et al._2011, title={Global diversity in light of climate change: the case of ants}, volume={17}, ISSN={["1472-4642"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-79958088243&partnerID=MN8TOARS}, DOI={10.1111/j.1472-4642.2011.00770.x}, abstractNote={AbstractAim  To use a fine‐grained global model of ant diversity to identify the limits of our knowledge of diversity in the context of climate change.Location  Global.Methods  We applied generalized linear modelling to a global database of local ant assemblages to predict the species density of ants globally. Predictors evaluated included simple climate variables, combined temperature × precipitation variables, biogeographic region, elevation, and interactions between select variables. Areas of the planet identified as beyond the reliable prediction ability of the model were those having climatic conditions more extreme than what was represented in the ant database.Results  Temperature was the most important single predictor of ant species density, and a mix of climatic variables, biogeographic region and interactions between climate and region yielded the best overall model. Broadly, geographic patterns of ant diversity match those of other taxa, with high species density in the wet tropics and in some, but not all, parts of the dry tropics. Uncertainty in model predictions appears to derive from the low amount of standardized sampling of ants in Asia, in Africa and in the most extreme (e.g. hottest) climates. Model residuals increase as a function of temperature. This suggests that our understanding of the drivers of ant diversity at high temperatures is incomplete, especially in hot and arid climates. In other words, our ignorance of how ant diversity relates to environment is greatest in those regions where most species occur – hot climates, both wet and dry.Main conclusions  Our results have two important implications. First, temperature is necessary, but not sufficient, to explain fully the patterns of ant diversity. Second, our ability to predict ant diversity is weakest exactly where we need to know the most, the warmest regions of a warming world. This includes significant parts of the tropics and some of the most biologically diverse areas in the world.}, number={4}, journal={DIVERSITY AND DISTRIBUTIONS}, author={Jenkins, Clinton N. and Sanders, Nathan J. and Andersen, Alan N. and Arnan, Xavier and Bruehl, Carsten A. and Cerda, Xim and Ellison, Aaron M. and Fisher, Brian L. and Fitzpatrick, Matthew C. and Gotelli, Nicholas J. and et al.}, year={2011}, month={Jul}, pages={652–662} }
 @article{roura-pascual_hui_ikeda_leday_richardson_carpintero_espadaler_gomez_guenard_hartley_et al._2011, title={Relative roles of climatic suitability and anthropogenic influence in determining the pattern of spread in a global invader}, volume={108}, number={1}, journal={Proceedings of the National Academy of Sciences of the United States of America}, author={Roura-Pascual, N. and Hui, C. and Ikeda, T. and Leday, G. and Richardson, D. M. and Carpintero, S. and Espadaler, X. and Gomez, C. and Guenard, B. and Hartley, S. and et al.}, year={2011}, pages={220–225} }
 @article{guenard_silverman_2011, title={Tandem carrying, a new foraging strategy in ants: description, function, and adaptive significance relative to other described foraging strategies}, volume={98}, DOI={10.1007/s00114-011-0814-z}, abstractNote={An important aspect of social insect biology lies in the expression of collective foraging strategies developed to exploit food. In ants, four main types of foraging strategies are typically recognized based on the intensity of recruitment and the importance of chemical communication. Here, we describe a new type of foraging strategy, "tandem carrying", which is also one of the most simple recruitment strategies, observed in the Ponerinae species Pachycondyla chinensis. Within this strategy, workers are directly carried individually and then released on the food resource by a successful scout. We demonstrate that this recruitment is context dependent and based on the type of food discovered and can be quickly adjusted as food quality changes. We did not detect trail marking by tandem-carrying workers. We conclude by discussing the importance of tandem carrying in an evolutionary context relative to other modes of recruitment in foraging and nest emigration.}, number={8}, journal={Naturwissenschaften (Berlin, Germany)}, author={Guenard, B. and Silverman, J.}, year={2011}, pages={651–659} }
 @article{guenard_lucky_2011, title={shuffling leaf litter samples produces more accurate and precise snapshots of terrestrial arthropod community composition}, volume={40}, number={6}, journal={Environmental Entomology}, author={Guenard, B. and Lucky, A.}, year={2011}, pages={1523–1529} }
 @article{guenard_dunn_2010, title={A New (Old), Invasive Ant in the Hardwood Forests of Eastern North America and Its Potentially Widespread Impacts}, volume={5}, ISSN={["1932-6203"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-77955370644&partnerID=MN8TOARS}, DOI={10.1371/journal.pone.0011614}, abstractNote={Biological invasions represent a serious threat for the conservation of biodiversity in many ecosystems. While many social insect species and in particular ant species have been introduced outside their native ranges, few species have been successful at invading temperate forests. In this study, we document for the first time the relationship between the abundance of the introduced ant, Pachycondyla chinensis, in mature forests of North Carolina and the composition, abundance and diversity of native ant species using both a matched pair approach and generalized linear models. Where present, P. chinensis was more abundant than all native species combined. The diversity and abundance of native ants in general and many individual species were negatively associated with the presence and abundance of P. chinensis. These patterns held regardless of our statistical approach and across spatial scales. Interestingly, while the majority of ant species was strongly and negatively correlated with the abundance and presence of P. chinensis, a small subset of ant species larger than P. chinensis was either as abundant or even more abundant in invaded than in uninvaded sites. The large geographic range of this ant species combined with its apparent impact on native species make it likely to have cascading consequences on eastern forests in years to come, effects mediated by the specifics of its life history which is very different from those of other invasive ants. The apparent ecological impacts of P. chinensis are in addition to public health concerns associated with this species due to its sometimes, deadly sting.}, number={7}, journal={PLOS ONE}, author={Guenard, Benoit and Dunn, Robert R.}, year={2010}, month={Jul} }
 @article{weiser_sanders_agosti_andersen_ellison_fisher_gibb_gotelli_gove_gross_et al._2010, title={Canopy and litter ant assemblages share similar climate-species density relationships}, volume={6}, ISSN={["1744-9561"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-78649884769&partnerID=MN8TOARS}, DOI={10.1098/rsbl.2010.0151}, abstractNote={Tropical forest canopies house most of the globe's diversity, yet little is known about global patterns and drivers of canopy diversity. Here, we present models of ant species density, using climate, abundance and habitat (i.e. canopy versus litter) as predictors. Ant species density is positively associated with temperature and precipitation, and negatively (or non-significantly) associated with two metrics of seasonality, precipitation seasonality and temperature range. Ant species density was significantly higher in canopy samples, but this difference disappeared once abundance was considered. Thus, apparent differences in species density between canopy and litter samples are probably owing to differences in abundance–diversity relationships, and not differences in climate–diversity relationships. Thus, it appears that canopy and litter ant assemblages share a common abundance–diversity relationship influenced by similar but not identical climatic drivers.}, number={6}, journal={BIOLOGY LETTERS}, author={Weiser, Michael D. and Sanders, Nathan J. and Agosti, Donat and Andersen, Alan N. and Ellison, Aaron M. and Fisher, Brian L. and Gibb, Heloise and Gotelli, Nicholas J. and Gove, Aaron D. and Gross, Kevin and et al.}, year={2010}, month={Dec}, pages={769–772} }
 @article{guenard_weiser_dunn_2010, title={Global generic richness and distribution: new maps of the world of ants with examples of their use in the context of Asia}, volume={3}, journal={Asian Myrmecology}, author={Guenard, B. and Weiser, M. D. and Dunn, R. R.}, year={2010}, pages={21–28} }
 @article{yashiro_matsuura_guenard_terayama_dunn_2010, title={On the evolution of the species complex Pachycondyla chinensis (Hymenoptera: Formicidae: Ponerinae), including the origin of its invasive form and description of a new species}, number={2685}, journal={Zootaxa}, author={Yashiro, T. and Matsuura, K. and Guenard, B. and Terayama, M. and Dunn, R. R.}, year={2010}, pages={39–50} }
 @article{menke_guenard_sexton_weiser_dunn_silverman_2011, title={Urban areas may serve as habitat and corridors for dry-adapted, heat tolerant species; an example from ants}, volume={14}, ISSN={["1573-1642"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-79955054212&partnerID=MN8TOARS}, DOI={10.1007/s11252-010-0150-7}, number={2}, journal={URBAN ECOSYSTEMS}, author={Menke, Sean B. and Guenard, Benoit and Sexton, Joseph O. and Weiser, Michael D. and Dunn, Robert R. and Silverman, Jules}, year={2011}, month={Jun}, pages={135–163} }
 @article{dunn_agosti_andersen_arnan_bruhl_cerda_ellison_fisher_fitzpatrick_gibb_et al._2009, title={Climatic drivers of hemispheric asymmetry in global patterns of ant species richness}, volume={12}, ISSN={["1461-023X"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-62249209482&partnerID=MN8TOARS}, DOI={10.1111/j.1461-0248.2009.01291.x}, abstractNote={AbstractAlthough many taxa show a latitudinal gradient in richness, the relationship between latitude and species richness is often asymmetrical between the northern and southern hemispheres. Here we examine the latitudinal pattern of species richness across 1003 local ant assemblages. We find latitudinal asymmetry, with southern hemisphere sites being more diverse than northern hemisphere sites. Most of this asymmetry could be explained statistically by differences in contemporary climate. Local ant species richness was positively associated with temperature, but negatively (although weakly) associated with temperature range and precipitation. After contemporary climate was accounted for, a modest difference in diversity between hemispheres persisted, suggesting that factors other than contemporary climate contributed to the hemispherical asymmetry. The most parsimonious explanation for this remaining asymmetry is that greater climate change since the Eocene in the northern than in the southern hemisphere has led to more extinctions in the northern hemisphere with consequent effects on local ant species richness.}, number={4}, journal={ECOLOGY LETTERS}, author={Dunn, Robert R. and Agosti, Donat and Andersen, Alan N. and Arnan, Xavier and Bruhl, Carsten A. and Cerda, Xim and Ellison, Aaron M. and Fisher, Brian L. and Fitzpatrick, Matthew C. and Gibb, Heloise and et al.}, year={2009}, month={Apr}, pages={324–333} }