5 Works

Data from: Density dependence in demography and dispersal generates fluctuating invasion speeds

Lauren L. Sullivan, Bingtuan Li, Tom E. X. Miller, Michael G. Neubert & Allison K. Shaw
Density dependence plays an important role in population regulation and is known to generate temporal fluctuations in population density. However, the ways in which density dependence affects spatial population processes, such as species invasions, are less understood. Although classical ecological theory suggests that invasions should advance at a constant speed, empirical work is illuminating the highly variable nature of biological invasions, which often exhibit nonconstant spreading speeds, even in simple, controlled settings. Here, we explore...

Data from: An alternative pathway to eusociality: exploring the molecular and functional basis of fortress defense

Sarah P. Lawson, Leah Sigle, Abigail L. Lind, Andrew W. Legan, Jessica N. Mezzanotte, Hans-Willi Honegger, Patrick Abbot & Leah T. Sigle
Some animals express a form of eusociality known as 'fortress defense', in which defense rather than brood care is the primary social act. Aphids are small plant-feeding insects, but like termites, some species express division of labor and castes of aggressive juvenile 'soldiers'. What is the functional basis of fortress defense eusociality in aphids? Previous work showed that the acquisition of venoms might be a key innovation in aphid social evolution. We show that the...

Data from: Fear of predation shapes social network structure and the acquisition of foraging information in guppy shoals

Matthew J. Hasenjager & Lee A. Dugatkin
Spatio-temporal variation in predation risk is predicted to select for plastic anti-predator responses, which may in turn impact the fine-scale social structure of prey groups and processes mediated by that structure. To test these predictions, we manipulated the ambient predation risk experienced by Trinidadian guppy (Poecilia reticulata) groups before quantifying their social networks and recording individual latencies to approach and solve a novel foraging task. High-risk conditions drove the formation of social networks that were...

Data from: Niche partitioning and the role of intraspecific niche variation in structuring a guild of generalist anurans

Carl S. Cloyed & Perri K. Eason
Intra-population niche differences in generalist foragers have captured the interest of ecologists, because such individuality can have important ecological and evolutionary implications. Few researchers have investigated how these differences affect the relationships among ecologically similar, sympatric species. Using stable isotopes, stomach contents, morphology and habitat preference, we examined niche partitioning within a group of five anurans and determined whether variation within species could facilitate resource partitioning. Species partitioned their niches by trophic level and by...

Data from: Benzene exposure is associated with cardiovascular disease risk

Wesley Abplanalp, Natasha DeJarnett, Daniel W. Riggs, Daniel J. Conklin, James P. McCracken, Sanjay Srivastava, Zhengzhi Xie, Shesh Rai, Aruni Bhatnagar, Timothy E. O'Toole & Timothy E. O’Toole
Benzene is a ubiquitous, volatile pollutant present at high concentrations in toxins (e.g. tobacco smoke) known to increase cardiovascular disease (CVD) risk. Despite its prevalence, the cardiovascular effects of benzene have rarely been studied. Hence, we examined whether exposure to benzene is associated with increased CVD risk. The effects of benzene exposure in mice were assessed by direct inhalation, while the effects of benzene exposure in humans was assessed in 210 individuals with mild to...

Registration Year

  • 2017

Resource Types

  • Dataset


  • University of Louisville
  • Rice University
  • University of Minnesota
  • University of New Hampshire
  • Vanderbilt University
  • Woods Hole Oceanographic Institution
  • Royal Holloway University of London
  • Cornell University