Wetland and Aquatic Research Center

Publications

Explore WARC's science publications.

Filter Total Items: 2,523
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Year Published: 2021

Modeling structural mechanics of oyster reef self-organization including environmental constraints and community interactions

Self-organization is a process of establishing and reinforcing local structures through feedbacks between internal population dynamics and external factors. In reef-building systems, substrate is collectively engineered by individuals that also occupy it and compete for space. Reefs are constrained spatially by the physical environment, and by...

Yurek, Simeon; Eaton, Mitchell; Lavaud, Romain; Laney, R. Wilson; DeAngelis, Don; Pine, William E.; LaPeyre, Megan K.; Martin, Julien; Frederick, Peter C; Wang, Hongqing; Lowe, Michael R.; Johnson, Fred; Camp, Edward V.; Mordecai, Rua

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Year Published: 2021

Red imported fire ants reduce invertebrate abundance, richness, and diversity in Gopher Tortoise burrows

Gopher Tortoise (Gopherus polyphemus) burrows support diverse commensal invertebrate communities that may be of special conservation interest. We investigated the impact of red imported fire ants (Solenopsis invicta) on the invertebrate burrow community at 10 study sites in southern Mississippi, sampling burrows (1998–2000) before and after bait...

Epperson, Deborah Mardeane; Allen, Craig R.; Hogan, Katharine F.E.

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Year Published: 2021

Strategic habitat conservation for beach mice: Estimating management scenario efficiencies

The Perdido Key beach mouse (Peromyscus polionotus trissyllepsis), Choctawhatchee beach mouse (P. p. allophrys), and St. Andrew beach mouse (P. p. peninsularis) are 3 federally endangered subspecies that inhabit coastal dunes of Alabama and Florida, USA. Conservation opportunities for these subspecies are limited and costly. Consequently, well‐...

Cronin, James P.; Tirpak, Blair; Dale, Leah L; Robenski, Virginia E; Tirpak, John M.; Marcot, Bruce G.

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Year Published: 2021

Germination potential of baldcypress (Taxodium distichum) swamp soil seed bank along geographical gradients

Changing environments of temperature, precipitation and moisture availability can affect vegetation in ecosystems, by affecting regeneration from the seed bank. Our objective was to explore the responses of soil seed bank germination to climate-related environments along geographic gradients. We collected seed banks in baldcypress (Taxodium...

Lei, Ting; Middleton, Beth

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Year Published: 2021

Carrying capacity of spatially distributed metapopulations

Carrying capacity is a key concept in ecology. A body of theory, based on the logistic equation, has extended predictions of carrying capacity to spatially distributed, dispersing populations. However, this theory has only recently been tested empirically. The experimental results disagree with some theoretical predictions of when they are...

Zhang, Bo; DeAngelis, Don; Ni, Wei-Ming

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Year Published: 2021

Surface elevation change evaluation in mangrove forests using a low‐cost, rapid‐scan terrestrial laser scanner

Mangrove forests have adapted to sea level rise (SLR) increases by maintaining their forest floor elevation via belowground root growth and surface sediment deposits. Researchers use surface elevation tables (SETs) to monitor surface elevation change (SEC) in mangrove forests, after which this information is used to assess SLR resiliency or to...

Kargar, Ali Rouzbeh; MacKenzie, Richard A.; Fafard, Alexander; Krauss, Ken; van Aardt, Jan

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Year Published: 2021

Resolving species boundaries in the critically imperiled freshwater mussel species, Fusconaia mitchelli (Bivalvia: Unionidae)

Species are a fundamental unit of biology, and defining accurate species boundaries is integral to effective conservation and management of imperiled taxa. Freshwater mussels (Bivalvia: Unionidae) are among the most imperiled groups of organisms in North America, yet species boundaries remain uncertain for many taxa. The False Spike, ...

Smith, Chase H.; Johnson, Nathan; Havlik, Kaitlyn; Doyle, Robert D.; Randklev, Charles R.

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Year Published: 2020

Mapping Phragmites australis live fractional cover in the lower Mississippi River Delta, Louisiana

In response to a co-occurring non-native scale infestation and Phragmites australis dieback in southeast Louisiana, normalized difference vegetation index (NDVI) satellite mapping was implemented to track P. australis condition in the lower Mississippi River Delta. While the NDVI mapping successfully documented relative condition changes,...

Rangoonwala, Amina; Howard, Rebecca J.; Ramsey III, Elijah W.
Rangoonwala, A., Howard, R.J., and Ramsey, E.W., III, 2020, Mapping Phragmites australis live fractional cover in the lower Mississippi River Delta, Louisiana: U.S. Geological Survey Open-File Report 2020–1131, 24 p., https://doi.org/10.3133/ofr20201131.

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Year Published: 2020

Small mammal responses to wetland restoration in the Greater Everglades ecosystem

Wetlands have experienced dramatic losses in extent around the world, disrupting ecosystem function, habitat, and biodiversity. In Florida’s Greater Everglades, a massive restoration effort costing billions of dollars and spanning multiple decades is underway. As Everglades restoration is implemented in incremental projects, scientists and...

Romanach, Stephanie; D'Acunto, Laura; Chapman, Julia; Hanson, Matthew R

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Year Published: 2020

A comparison of plant communities in restored, old field, and remnant coastal prairies

Temperate grasslands are experiencing worldwide declines due to habitat conversion. Grassland restoration efforts are employed to compensate for these losses. However, there is a need to better understand the ecological effects of grassland restoration and management practices. We investigated the effects of three different grassland management...

Feher, Laura; Allain, Larry; Osland, Michael; Pigott, Elisabeth; Reid, Christopher; Latiolais, Nicholas

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Year Published: 2020

Stable isotope dynamics of herbivorous reef fishes and their ectoparasites

Acanthurids (surgeonfishes) are an abundant and diverse group of herbivorous fishes on coral reefs. While their contribution to trophic linkages and dynamics in coral reef systems has received considerable attention, the role of linkages involving their parasites has not. As both consumers of fish tissue and prey to microcarnivores, external...

Jenkins, William; Demopoulos, Amanda; Nicholson, Matthew C.; Sikkel, Paul C.

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Year Published: 2020

Stress gradients interact with disturbance to reveal alternative states in salt marsh: Multivariate resilience at the landscape scale

Stress gradients influence many ecosystem processes and properties, including ecosystem recovery from and resistance to disturbance. While recent analytical approaches have advanced multivariate metrics of ecosystem resilience that allow quantification of conceptual resilience models and identification of thresholds of state change, these...

Jones, Scott; Stagg, Camille; Yando, Erik S.; James, W. Ryan; Buffington, Kevin J.; Hester, Mark W.