Publications
Explore WARC's science publications.
Filter Total Items: 3375
Landscape structure affects specialists but not generalists in naturally fragmented grasslands
Understanding how biotic communities respond to landscape spatial structure is critically important for conservation management as natural landscapes become increasingly fragmented. However, empirical studies of the effects of spatial structure on plant species richness have found inconsistent results, suggesting that more comprehensive approaches are needed. In this study, we asked how landscape
Authors
Jesse E.D. Miller, Ellen Ingman Damschen, Susan P. Harrison, James B. Grace
Field and laboratory guide to freshwater cyanobacteria harmful algal blooms for Native American and Alaska Native communities
Cyanobacteria can produce toxins and form harmful algal blooms. The Native American and Alaska Native communities that are dependent on subsistence fishing have an increased risk of exposure to these cyanotoxins. It is important to recognize the presence of an algal bloom in a waterbody and to distinguish a potentially toxic harmful algal bloom from a non-toxic bloom. This guide provides field ima
Authors
Barry H. Rosen, Ann St. Amand
Bistability of mangrove forests and competition with freshwater plants
Halophytic communities such as mangrove forests and buttonwood hammocks tend to border freshwater plant communities as sharp ecotones. Most studies attribute this purely to underlying physical templates, such as groundwater salinity gradients caused by tidal flux and topography. However, a few recent studies hypothesize that self-reinforcing feedback between vegetation and vadose zone salinity are
Authors
Jiang Jiang, Douglas O Fuller, Su Yean Teh, Lu Zhai, Hock Lye Koh, Donald L. DeAngelis, L.D.S.L. Sternberg
Bayesian data analysis in population ecology: motivations, methods, and benefits
During the 20th century ecologists largely relied on the frequentist system of inference for the analysis of their data. However, in the past few decades ecologists have become increasingly interested in the use of Bayesian methods of data analysis. In this article I provide guidance to ecologists who would like to decide whether Bayesian methods can be used to improve their conclusions and predic
Authors
Robert Dorazio
Does natural variation in diversity affect biotic resistance?
NoticeThis publication has been retracted. See the retraction notice.
Authors
Susan Harrison, Howard Cornell, James B. Grace
Prediction of plant vulnerability to salinity increase in a coastal ecosystem by stable isotopic composition (δ18O) of plant stem water: a model study
Sea level rise and the subsequent intrusion of saline seawater can result in an increase in soil salinity, and potentially cause coastal salinity-intolerant vegetation (for example, hardwood hammocks or pines) to be replaced by salinity-tolerant vegetation (for example, mangroves or salt marshes). Although the vegetation shifts can be easily monitored by satellite imagery, it is hard to predict a
Authors
Lu Zhai, Jiang Jiang, Donald L. DeAngelis, Leonel d.S.L Sternberg
Beyond just sea-level rise: Considering macroclimatic drivers within coastal wetland vulnerability assessments to climate change
Due to their position at the land-sea interface, coastal wetlands are vulnerable to many aspects of climate change. However, climate change vulnerability assessments for coastal wetlands generally focus solely on sea-level rise without considering the effects of other facets of climate change. Across the globe and in all ecosystems, macroclimatic drivers (e.g., temperature and rainfall regimes) gr
Authors
Michael J. Osland, Nicholas M. Enwright, Richard H. Day, Christopher A. Gabler, Camille L. Stagg, James B. Grace
Demersal fish distribution and habitat use within and near Baltimore and Norfolk Canyons, U.S. Middle Atlantic Slope
Numerous submarine canyons along the United States middle Atlantic continental margin support enhanced productivity, diverse and unique habitats, active fisheries, and are vulnerable to various anthropogenic disturbances. During two cruises (15 Aug–2 Oct 2012 and 30 Apr–27 May 2013), Baltimore and Norfolk canyons and nearby areas (including two cold seeps) were intensively surveyed to determine de
Authors
Steve W. Ross, Mike Rhode, Andrea M. Quattrini
Defining conservation targets on a landscape-scale
Conservation planning, the process of deciding how to protect, conserve, enhance and(or) minimize loss of natural and cultural resources, is a fundamental process to achieve conservation success in a time of rapid environmental change. Conservation targets, the measurable expressions of desired resource conditions, are an important tool in biological planning to achieve effective outcomes. Conserv
Authors
A.M. Benscoter, Stephanie S. Romañach, Laura A. Brandt
Value of information and natural resources decision-making
Though the potential for information to measurably improve management has been highlighted for several decades, in recent years the “value of information” has surfaced with increasing frequency in natural resources. However, the use of this phrase belies the fact that many in natural resources have only a limited understanding about what it actually means, how to measure it, and what to do with it
Authors
Byron K. Williams, Fred A. Johnson
Variable nutrient stoichiometry (carbon:nitrogen:phosphorus) across trophic levels determines community and ecosystem properties in an oligotrophic mangrove system
Our study investigated the carbon:nitrogen:phosphorus (C:N:P) stoichiometry of mangrove island of the Mesoamerican Barrier Reef (Twin Cays, Belize). The C:N:P of abiotic and biotic components of this oligotrophic ecosystem was measured and served to build networks of nutrient flows for three distinct mangrove forest zones (tall seaward fringing forest, inland dwarf forests and a transitional zone)
Authors
U. M. Scharler, Robert E. Ulanowicz, M. L. Fogel, M. J. Wooller, M. E. Jacobson-Meyers, C. E. Lovelock, I. C. Feller, M. Frischer, R. Lee, Karen L. McKee, I. C. Romero, J. P. Schmit, C. Shearer
Sea-level rise modeling handbook: Resource guide for coastal land managers, engineers, and scientists
Global sea level is rising and may accelerate with continued fossil fuel consumption from industrial and population growth. In 2012, the U.S. Geological Survey conducted more than 30 training and feedback sessions with Federal, State, and nongovernmental organization (NGO) coastal managers and planners across the northern Gulf of Mexico coast to evaluate user needs, potential benefits, current sci
Authors
Thomas W. Doyle, Bogdan Chivoiu, Nicholas M. Enwright