8 Works

Data from: The fossil record and macroevolutionary history of the beetles

Dena M. Smith & Jonathan D. Marcot
Coleoptera (beetles) is the most species-rich metazoan order, with approximately 380 000 species. To understand how they came to be such a diverse group, we compile a database of global fossil beetle occurrences to study their macroevolutionary history. Our database includes 5553 beetle occurrences from 221 fossil localities. Amber and lacustrine deposits preserve most of the beetle diversity and abundance. All four extant suborders are found in the fossil record, with 69% of all beetle...

Data from: Comparing process-based and constraint-based approaches for modeling macroecological patterns

Xiao Xiao, James P. O'Dwyer & Ethan P. White
Ecological patterns arise from the interplay of many different processes, and yet the emergence of consistent phenomena across a diverse range of ecological systems suggests that many patterns may in part be determined by statistical or numerical constraints. Differentiating the extent to which patterns in a given system are determined statistically, and where it requires explicit ecological processes, has been difficult. We tackled this challenge by directly comparing models from a constraint-based theory, the Maximum...

Data from: Mandible-powered escape jumps in trap-jaw ants increase survival rates during predator-prey encounters

Fredrick J. Larabee & Andrew V. Suarez
Animals use a variety of escape mechanisms to increase the probability of surviving predatory attacks. Antipredator defenses can be elaborate, making their evolutionary origin unclear. Trap-jaw ants are known for their rapid and powerful predatory mandible strikes, and some species have been observed to direct those strikes at the substrate, thereby launching themselves into the air away from a potential threat. This potential escape mechanism has never been examined in a natural context. We studied...

Data from: Habitat traits and species interactions differentially affect abundance and body size in pond-breeding amphibians

Brittany H. Ousterhout, Thomas L. Anderson, Dana L. Drake, William E. Peterman & Raymond D. Semlitsch
1. In recent studies, habitat traits have emerged as stronger predictors of species occupancy, abundance, richness and diversity than competition. However, in many cases, it remains unclear whether habitat also mediates processes more subtle than competitive exclusion, such as growth, or whether intra- and interspecific interactions among individuals of different species may be better predictors of size. 2. To test whether habitat traits are a stronger predictor of abundance and body size than intra- and...

Data from: Diagnostic SNPs reveal widespread introgressive hybridization between introduced bighead and silver carp in the Mississippi River Basin

James T. Lamer, Blake C. Ruebush, Zarema H. Arbieva, Michael A. McClelland, John M. Epifanio & Gregory G. Sass
Hybridization among conspecifics in native and introduced habitats has important implications for biological invasions in new ecosystems. Bighead (Hypophthalmichthys nobilis) and silver carp (H. molitrix) are genetically isolated and occur in sympatry within their native range. Following their introduction to North America, however, introgressant hybrids have been reported throughout their expanded range within the Mississippi River Basin (MRB). The extent of introgression, both spatially and generationally, is largely unknown. Therefore, we examined mixed-species populations from...

Data from: Rapid genetic restoration of a keystone species exhibiting delayed demographic response

Bradley J. Cosentino, Robert L. Schooley, Brandon T. Bestelmeyer, Alison J. McCarthy & Kevin Sierzega
Genetic founder effects are often expected when animals colonize restored habitat in fragmented landscapes, but empirical data on genetic responses to restoration are limited. We examined the genetic response of banner-tailed kangaroo rats (Dipodomys spectabilis) to landscape-scale grassland restoration in the Chihuahuan Desert of New Mexico, USA. D. spectabilis is a grassland specialist and keystone species. At sites treated with herbicide to remove shrubs, colonization by D. spectabilis is slow and populations persist at low...

Data from: Phylogeographic inference using Bayesian model comparison across a fragmented chorus frog species complex

Lisa N. Barrow, Alyssa T. Bigelow, Christopher A. Phillips & Emily Moriarty Lemmon
Fragmented species complexes provide an interesting system for investigating biogeographic history and the present distribution of genetic variation. Recent advances in sequencing technology and statistical phylogeography enable the collection and rigorous analysis of large multilocus data sets, but designing studies that produce meaningful phylogeographic inferences remains challenging. We implemented a Bayesian model comparison approach to investigate previous biogeographic hypotheses while simultaneously inferring the presence of genetic structure in a chorus frog species complex. The Illinois...

Data from: A female’s past experience with predators affects male courtship and the care her offspring will receive from their father

Katie McGhee, Sally Feng, Sagan Leasure, Alison Bell & Alison M. Bell
Differential allocation occurs when individuals adjust their reproductive investment based on their partner's traits. However, it remains unknown whether animals differentially allocate based on their partner's past experiences with predation risk. If animals can detect a potential mate’s experience with predators, this might inform them about the stress level of their potential mate, the likelihood of parental effects in offspring, and/or the dangers present in the environment. Using threespined stickleback (Gasterosteus aculeatus), we examined whether...

Registration Year

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  • University of Illinois System
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