The contribution of multiple barriers to reproduction between edaphically divergent lineages in the Amazonian tree Protium subserratum (Burseraceae).Tracy Misiewicz
Disentangling the strength and importance of barriers to reproduction that arise between diverging lineages is central to our understanding of species origin and maintenance. Evidence suggests that divergent adaptation can drive the development of ecologically and genetically based barriers to reproduction. To date, the vast majority of studies investigating the importance of different barriers to reproduction in plants have focused on short-lived temperate taxa while studies of reproductive isolation in trees and tropical taxa are...
Data from: Small mammal herbivores mediate the effects of soil nitrogen and invertebrate herbivores on grassland diversityNicole Poe, Katharine L. Stuble & Lara Souza
1. Simultaneous reductions in herbivore abundance and increases in nitrogen deposition have led to radical shifts in plant communities worldwide. While the individual impacts of these human-caused disturbances are apparent, few studies manipulate both herbivory and N, nor differentiate among herbivore guilds, to understand contingencies in the ability of these drivers to affect producer diversity and productivity. As such, understanding how the main and combined effects of increasing soil N with declining herbivores may influence...
Data from: Antibiotics as chemical warfare across multiple taxonomic domains and trophic levelsJane M Lucas, Evan Gora & Michael Kaspari
Bacteria and fungi secrete antibiotics to suppress and kill other microbes, but can these compounds be agents of competition against macroorganisms? We explore how one competitive tactic, antibiotic production, can structure the composition and function of brown food webs. This aspect of warfare between microbes and invertebrates is particularly important today as antibiotics are introduced into ecosystems via anthropogenic activities, but the ecological implications of these introductions are largely unknown. We hypothesized that antimicrobial compounds...
Data from: Genomics overrules mitochondrial DNA, siding with morphology on a controversial case of species delimitationCarmen R. Del Pedraza-Marrón, Raimundo Silva, Jonathan Deeds, Steven M. Van Belleghem, Alicia Mastretta-Yanes, Omar Domínguez-Domínguez, Rafael A. Rivero-Vega, Loretta Lutackas, Debra Murie, Daryl Parkyn, Lewis H. Bullock, Kristin Foss, Humberto Ortiz-Zuazaga, Juan Narváez-Barandica, Arturo Acero, Grazielle Gomes & Ricardo Betancur-R.
Species delimitation is a major quest in biology and is essential for adequate management of the organismal diversity. A challenging example comprises the fish species of red snappers in the Western Atlantic. Red snappers have been traditionally recognized as two separate species based on morphology: Lutjanus campechanus (northern red snapper) and L. purpureus (southern red snappers). Recent genetic studies using mitochondrial markers, however, failed to delineate these nominal species, leading to the current lumping of...
Data from: The comparative biogeography of Philippine geckos challenges predictions from a paradigm of climate-driven vicariant diversification across an island archipelagoJamie R Oaks, Cameron D. Siler & Rafe M. Brown
A primary goal of biogeography is to understand how large-scale environmental processes, like climate change, affect diversification. One often-invoked but seldom tested process is the so-called ''species-pump'' model, in which repeated bouts of co-speciation is driven by oscillating climate-induced habitat connectivity cycles. For example, over the past three million years, the landscape of the Philippine Islands has repeatedly coalesced and fragmented due to sea-level changes associated with the glacial cycles. This repeated climate-driven vicariance has...
Data from: Phylogenomic incongruence, hypothesis testing, and taxonomic sampling: the monophyly of characiform fishesRicardo Betancur-R., Dahiana Arcila, Richard P. Vari, Lily C. Hughes, Claudio Oliveira, Mark H. Sabaj & Guillermo Ortí
Phylogenomic studies using genome‐wide datasets are quickly becoming the state of the art for systematics and comparative studies, but in many cases, they result in strongly supported incongruent results. The extent to which this conflict is real depends on different sources of error potentially affecting big datasets (assembly, stochastic, and systematic error). Here, we apply a recently developed methodology (GGI or gene genealogy interrogation) and data curation to new and published datasets with more than...
Data from: Microbial functional diversity: from concepts to applicationsArthur Escalas, Lauren Hale, James Voordeckers, Yunfeng Yang, Mary Firestone, Lisa Alvarez-Cohen & Jizhong Zhou
Functional diversity is increasingly recognized by microbial ecologists as the essential link between biodiversity patterns and ecosystem functioning, determining the trophic relationships and interactions between microorganisms, their participation in biogeochemical cycles and their responses to environmental changes. Consequently, its definition and quantification have practical and theoretical implications. In this opinion paper, we present a synthesis on the concept of microbial functional diversity from its definition to its application. Initially, we revisit to the original definition...
University of Oklahoma7
University of Puerto Rico at Río Piedras2
University of Kansas1
Universidad Michoacana de San Nicolás de Hidalgo1
University of California, Berkeley1
University of Louisville1
National Commission for the Knowledge and Use of Biodiversity1
United States Department of Agriculture1