Identifying factors that promote population differentiation is of interest for understanding the early stages of speciation. Gene flow among populations inhabiting different environments can be reduced by geographical distance (isolation-by-distance) or by divergent selection resulting from local adaptation (isolation-by-ecology). Few studies have investigated the influence of these factors in ...

As the human population expands, landscapes worldwide are becoming fragmented into remnant patches of original habitat, surrounded by agriculture and other human land uses. With diminishing opportunities to preserve large tracts of pristine habitat, the future of biodiversity conservation lies increasingly in these fragmented areas. Therefore, understanding the processes at work in fragmented l...

The Sorcerer II Global Ocean Sampling (GOS) sequencing effort has vastly expanded the landscape of metagenomics, providing an opportunity to study the genetic potential of surface ocean water bacterioplankton on a global scale. Here we describe the habitat-based microbial diversity, both taxon evenness and taxon richness, for each GOS site and estimate genome characteristics of a typical free-l...

Numerous genetic studies that show close genetic relationships between morphologically-defined coral species support the concept of reticulate evolution. The ecological scenarios that lead to such genetic patterns are less well studied. The crux in such studies is to answer under which conditions gene-flow between coral morphospecies breaks down and give rise to new genetic clusters with higher...

In species-habitat association studies, both the type and spatial scale of habitat covariates need to match the ecology of the focal species. We assessed the potential of high-resolution satellite imagery for generating habitat covariates using camera-trapping data from Sabah, Malaysian Borneo, within an occupancy framework. We tested the predictive power of covariates generated from satellite ...

I used logistic regression to construct bighorn sheep winter range habitat models for 2 study areas in Glacier National Park (GNP), Montana. During 2 winters, habitat use was described through systematic ground surveys supplemented with focal observations, lasting 1-3 days, of recognizable individual sheep. Available habitat was evaluated using 12 habitat parameters, each measured at a 30-by-30...

Although Diabrotica pest species have been well studied in Þeld corn, Zea mays L., relatively little is known about adult habitat use by pest andnonpest species at prairieÐcorn interfaces. Therefore, the objective of this work was to compare seasonal patterns of beetles of four Diabrotica species and their use of remnant prairie and adjacent Þeld cornhabitats in southeasternNebraska. The study ...

Movement and exchange of individuals among habitats is critical for the dynamics and success of reef fish populations. Size segregation among habitats could be taken as evidence for habitat connectivity, and this would be a first step to formulate hypotheses about ontogenetic inter-habitat migrations. The primary goal of our research was to find evidence of inter-habitat differences in size dis...

We examined the effects of habitat type and distance from the edge on ant species richness and community composition and we assessed the ability of species to dominate experimental bait stations in degraded longleaf pine savanna and oak hammock in northern Florida. We were particularly interested in the relationships between nonindigenous species, including Solenopsis invicta, and the native an...