Publications
Explore WARC's science publications.
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Modeling the effects of spatial distribution on dynamics of an invading Melaleuca quinquenervia (Cav.) Blake population Modeling the effects of spatial distribution on dynamics of an invading Melaleuca quinquenervia (Cav.) Blake population
To predict the potential success of an invading non-native species, it is important to understand its dynamics and interactions with native species in the early stages of its invasion. In spatially implicit models, mathematical stability criteria are commonly used to predict whether an invading population grows in number in an early time period. But spatial context is important for real...
Authors
Yuanming Lu, Junfei Xia, Robert D. Holt, Don DeAngelis
Feedbacks: A new synthesis of causal loops across ecology Feedbacks: A new synthesis of causal loops across ecology
Feedbacks are the basic linkages of living systems. In organisms, they regulate the processes of growth and homeostasis, as well as their interactions with their world. Feedback, which Judson (1980) called ‘one of the chief themes of scientific understanding,' is equally important in ecological systems. The ecological literature is rich in papers dealing with the role of feedback in...
Authors
Donald L. DeAngelis, Linhao Xu
Stability concepts in ecology Stability concepts in ecology
The term stability, as applied to ecological systems, whether populations, communities, or ecosystems, means the tendency either to stay either close to some initial state, or to stay within certain bounds, or to persist in the face of environmental disturbances or changes. Here, a historical overview of stability concepts in ecology is outlined and measures of stability are discussed...
Authors
Donald L. DeAngelis, Linhao Xu
Interactive effects of salinity and hydrology on radial growth of bald cypress (Taxodium distichum (L.) Rich.) in coastal Louisiana, USA Interactive effects of salinity and hydrology on radial growth of bald cypress (Taxodium distichum (L.) Rich.) in coastal Louisiana, USA
Tidal freshwater forests are usually located at or above the level of mean high water. Some Louisiana coastal forests are below mean high water, especially bald cypress (Taxodium distichum (L.) Rich.) forests because flooding has increased due to the combined effects of global sea level rise and local subsidence. In addition, constructed channels from the coast inland act as conduits for...
Authors
Richard Day, Andrew From, Darren Johnson, Ken Krauss
Rising seas could cross thresholds for initiating coastal wetland drowning within decades across much of the United States Rising seas could cross thresholds for initiating coastal wetland drowning within decades across much of the United States
Accelerated sea-level rise is an existential threat to coastal wetlands, but the timing and extent of wetland drowning are debated. Recent data syntheses have clarified future relative sea-level rise exposure and sensitivity thresholds for drowning. Here, we integrate these advances to estimate when and where rising sea levels could cross thresholds for initiating wetland drowning across...
Authors
Michael Osland, Bogdan Chivoiu, James Grace, Nicholas Enwright, Glenn R. Guntenspergen, Kevin Buffington, Karen M. Thorne, Joel A. Carr, William V. Sweet, Brady Couvillion
Vegetation-generated turbulence does not impact the erosion of natural cohesive sediment Vegetation-generated turbulence does not impact the erosion of natural cohesive sediment
Previous studies have demonstrated that vegetation-generated turbulence can enhance erosion rate and reduce the velocity threshold for erosion of non-cohesive sediment. This study considered whether vegetation-generated turbulence had a similar influence on natural cohesive sediment. Cores were collected from a black mangrove forest with aboveground biomass and exposed to stepwise...
Authors
Autumn R. Deitrick, David K. Ralston, Christopher R. Esposito, Melissa Millman Baustian, Maricel Beltran Burgos, Andrew J. Courtois, Heidi M. Nepf
Review of the life history and conservation of federally endangered plant species of the Lower Rio Grande Valley, Texas, U.S.A. Review of the life history and conservation of federally endangered plant species of the Lower Rio Grande Valley, Texas, U.S.A.
This review aims to summarize information critical to the conservation of the federally listed endangered species of South Texas, which occur along the border of Texas and Mexico. This paper describes the characteristics, habitat, population status, distribution, life history, threats, and restoration of endangered plant species of the Lower Rio Grande Valley, Texas, which includes...
Authors
Beth Middleton, Elizabeth A. Gonzalez, Emily J. Lain, Benito Trevino, Christopher A. Gabler, Jerald T. Garrett, Brenda Molano-Flores, Janice Coons, Laura M. de la Garza, Teresa P. Feria-Arroyo
Four decades of data indicate that planted mangroves stored up to 75% of the carbon stocks found in intact mature stands Four decades of data indicate that planted mangroves stored up to 75% of the carbon stocks found in intact mature stands
Mangroves’ ability to store carbon (C) has long been recognized, but little is known about whether planted mangroves can store C as efficiently as naturally established (i.e., intact) stands and in which time frame. Through Bayesian logistic models compiled from 40 years of data and built from 684 planted mangrove stands worldwide, we found that biomass C stock culminated at 71 to 73% to...
Authors
Carine F. Bourgeois, Richard A. MacKenzie, Sahadev Sharma, Rupesh K. Bhomia, Nels G. Johnson, Andre S. Rovai, Thomas A. Worthington, Ken Krauss, Kangkuso Analuddin, Jacob J. Bukoski, Jose Alan Castillo, Angie Elwin, Leah Glass, Tim C. Jennerjahn, Mwita M. Mangora, Cyril Marchand, Michael Osland, Ismael A. Ratefinjanahary, Raghab Ray, Severino G. Salmo, Sigit D. Sasmito, Rempei Suwa, Pham Hong Tinh, Carl C. Trettin
Low-level dietary clothianidin exposure preferentially causes prepupal mortality of monarch butterflies (Danaus plexippus) Low-level dietary clothianidin exposure preferentially causes prepupal mortality of monarch butterflies (Danaus plexippus)
Data from prior research indicate the prepupal stage of the monarch butterfly life cycle is more sensitive to clothianidin exposure than the larval stage. A set of experiments was conducted to determine if the dietary clothianidin exposures that cause prepupal mortality are environmentally relevant. Monarch larvae were raised from egg to pupae on clothianidin-contaminated swamp milkweed...
Authors
Timothy Bargar
Multidisciplinary characterisation of the biodiversity, geomorphology, oceanography and glacial history of Bowditch Seamount in the Sargasso Sea Multidisciplinary characterisation of the biodiversity, geomorphology, oceanography and glacial history of Bowditch Seamount in the Sargasso Sea
The first multidisciplinary characterisation of Bowditch Seamount in the Sargasso Sea was conducted to provide new baseline knowledge of the biodiversity, geomorphology, oceanography and glacial history of this seamount. A dropframe camera transect 1483–1562 m deep on the seamount documented 77 megafaunal taxa including Vulnerable Marine Ecosystem indicator taxa such as sponges, cold...
Authors
Lea-Anne Henry, Igor Yashayaev, Claude Hillaire-Marcel, F. Javier Murillo, Ellen Kenchington, Struan Smith, Jenny Maccali, Jill Bourque, Louis L. Whitcomb, J. Murray Roberts
The National Ocean Biodiversity Strategy The National Ocean Biodiversity Strategy
President Biden has been clear that the ocean is central to life on Earth. As he has proclaimed, “the ocean powers millions of jobs; feeds and sustains us; and is a rejuvenating source of inspiration, exploration, and recreation.” The Biden-Harris Administration has worked hard to fulfill the President’s goal to protect and conserve at least 30% of U.S. waters by 2030. The ocean faces...
Authors
Gabrielle Canonico, J. Emmett Duffy, Masha Edmonson, Katie Fillingham, Abigail Benson, Kelsey Bisson, Amanda Demopoulos, Beth Hinchey, Katsumi Matsumoto, Chris Meyer, James Price, Elaine Shen, Woody Turner, Mike Weise, Andrea Vander Woude, Lauren Wenzel
Satellite telemetry reveals high-use internesting areas and international foraging extent for loggerhead turtles tagged in southeast Florida, USA Satellite telemetry reveals high-use internesting areas and international foraging extent for loggerhead turtles tagged in southeast Florida, USA
Developing conservation strategies for highly migratory marine species relies on understanding their spatial distributions. Nesting populations of female loggerhead (Caretta caretta) turtles typically travel from widely dispersed foraging areas and make use of common internesting areas between nesting events. Protection of these areas is essential to the conservation of this species. In...
Authors
Glenn D. Goodwin, Kristen Hart, Abby C. Evans, Derek A. Burkholder