Search Results - "Williams, Neal M."

Bumble bee colony dynamics: quantifying the importance of land use and floral resources for colony growth and queen production by Crone, Elizabeth E, Williams, Neal M, Irwin, Rebecca

“…Bumble bee (Bombus) species are ecologically and economically important pollinators, and many species are in decline. In this article, we develop a mechanistic…”
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Modeling the status, trends, and impacts of wild bee abundance in the United States by Koh, Insu, Lonsdorf, Eric V., Williams, Neal M., Brittain, Claire, Isaacs, Rufus, Gibbs, Jason, Ricketts, Taylor H.

“…Wild bees are highly valuable pollinators. Along with managed honey bees, they provide a critical ecosystem service by ensuring stable pollination to…”
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Species turnover promotes the importance of bee diversity for crop pollination at regional scales by Winfree, Rachael, Reilly, James R, Bartomeus, Ignasi, Cariveau, Daniel P, Williams, Neal M, Gibbs, Jason

“…Ecologists have shown through hundreds of experiments that ecological communities with more species produce higher levels of essential ecosystem functions such…”
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Cropland heterogeneity drives frequency and intensity of pesticide use by Nicholson, Charlie C, Williams, Neal M

“…Abstract Agricultural landscapes across the planet have replaced natural habitat with crop production that is less diverse at field and landscape scales. Loss…”
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Sampling bias is a challenge for quantifying specialization and network structure: lessons from a quantitative niche model by Fründ, Jochen, McCann, Kevin S., Williams, Neal M.

“…Network approaches have become a popular tool for understanding ecological complexity in a changing world. Many network descriptors relate directly or…”
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Contrasting patterns in species and functional-trait diversity of bees in an agricultural landscape by Forrest, Jessica R. K., Thorp, Robbin W., Kremen, Claire, Williams, Neal M.

“…1. Land-use change frequently reduces local species diversity. Species losses will often result in loss of trait diversity, with likely consequences for…”
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Experimental heatwaves disrupt bumblebee foraging through direct heat effects and reduced nectar production by Hemberger, Jeremy A., Rosenberger, Nick M., Williams, Neal M.

“…Heatwaves are an increasingly common extreme weather event across the globe and are projected to surge in frequency and severity in the coming decades…”
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Ecological and life-history traits predict bee species responses to environmental disturbances by Williams, Neal M., Crone, Elizabeth E., Roulston, T’ai H., Minckley, Robert L., Packer, Laurence, Potts, Simon G.

“…The ability to predict the responses of ecological communities and individual species to human-induced environmental change remains a key issue for ecologists…”
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Wildfire reveals transient changes to individual traits and population responses of a native bumble bee Bombus vosnesenskii by Mola, John M., Miller, Michael R., O'Rourke, Sean M., Williams, Neal M., Resasco, Julian

“…Fire‐induced changes in the abundance and distribution of organisms, especially plants, can alter resource landscapes for mobile consumers driving bottom‐up…”
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A review of methods for the study of bumble bee movement by Mola, John M., Williams, Neal M.

“…Understanding animal movement is critical for conservation planning, habitat management, and ecological study. However, our understanding is often limited by…”
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Wild bee pollinators provide the majority of crop visitation across land-use gradients in New Jersey and Pennsylvania, USA by Winfree, Rachael, Williams, Neal M., Gaines, Hannah, Ascher, John S., Kremen, Claire

“…1. Concern about a global decline in wild pollinators has increased interest in how pollinators are affected by human land use, and how this, in turn, affects…”
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Fire‐induced change in floral abundance, density, and phenology benefits bumble bee foragers by Mola, John M., Williams, Neal M.

“…Fire is a dominant, and well‐studied, structuring force in many temperate and semi‐arid communities; yet, few studies have investigated the effects of fire on…”
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Species abundance and asymmetric interaction strength in ecological networks by Vázquez, Diego P., Melián, Carlos J., Williams, Neal M., Blüthgen, Nico, Krasnov, Boris R., Poulin, Robert

“…The strength of interactions among species in a network tends to be highly asymmetric. We evaluate the hypothesis that this asymmetry results from the…”
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Source-sink dynamics of bumblebees in rapidly changing landscapes by Iles, David T., Williams, Neal M., Crone, Elizabeth E.

“…1. Bumblebees inhabit spatially heterogeneous landscapes that are likely characterized by population sources and sinks. To date, most studies of bumblebee…”
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Extinction order and altered community structure rapidly disrupt ecosystem functioning by Larsen, Trond H., Williams, Neal M., Kremen, Claire

“…By causing extinctions and altering community structure, anthropogenic disturbances can disrupt processes that maintain ecosystem integrity. However, the…”
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Crop Pollination from Native Bees at Risk from Agricultural Intensification by Kremen, Claire, Williams, Neal M., Thorp, Robbin W.

“…Ecosystem services are critical to human survival; in selected cases, maintaining these services provides a powerful argument for conserving biodiversity. Yet,…”
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Pollination and other ecosystem services produced by mobile organisms: a conceptual framework for the effects of land-use change by Kremen, Claire, Williams, Neal M., Aizen, Marcelo A., Gemmill-Herren, Barbara, LeBuhn, Gretchen, Minckley, Robert, Packer, Laurence, Potts, Simon G., Roulston, T'ai, Steffan-Dewenter, Ingolf, Vázquez, Diego P., Winfree, Rachael, Adams, Laurie, Crone, Elizabeth E., Greenleaf, Sarah S., Keitt, Timothy H., Klein, Alexandra-Maria, Regetz, James, Ricketts, Taylor H.

“…Many ecosystem services are delivered by organisms that depend on habitats that are segregated spatially or temporally from the location where services are…”
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Does an ‘oversupply’ of ovules cause pollen limitation? by Rosenheim, Jay A, Schreiber, Sebastian J, Williams, Neal M

“…Lifetime seed production can be constrained by shortfalls of pollen receipt (‘pollen limitation’). The ovule oversupply hypothesis states that, in response to…”
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A test of balanced fitness limitations theory: Pollen limitation in plants by Rosenheim, Jay A., Williams, Neal M., Rapp, Joshua M., Schreiber, Sebastian J.

“…When reproductive success is determined by the relative availabilities of a series of essential, non‐substitutable resources, the theory of balanced fitness…”
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Past insecticide exposure reduces bee reproduction and population growth rate by Stuligross, Clara, Williams, Neal M.

“…Pesticides are linked to global insect declines, with impacts on biodiversity and essential ecosystem services. In addition to well-documented direct impacts…”
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