Response of a Phytoplankton Community in a Subtropical Estuary to a Pulse Disturbance Driven by a Combo Hurricane and Extreme Rainfall Event

Quigg, Antonietta; Claflin, Noah; Kamalanathan, Manoj; Labonté, Jessica M.; Steichen, Jamie L.

doi:10.1007/s12237-024-01352-9

Estuaries and Coasts

2024

DOI: 10.1007/s12237-024-01352-9

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Response of a Phytoplankton Community in a Subtropical Estuary to a Pulse Disturbance Driven by a Combo Hurricane and Extreme Rainfall Event

Antonietta Quigg,

Noah Claflin,

Manoj Kamalanathan

et al.

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2024

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Cited by 2 publications

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Salt Marsh Habitats and Diamondback Terrapins in a Rapidly Changing Climate: A Review

Lamont,

Osland,

Baustian

2024

Estuaries and Coasts

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The impacts associated with global climate change (e.g., sea-level rise, tropical storms, and warming temperatures) are expected to alter predator–prey interactions, foundation species, and plant community structure in coastal ecosystems. While the complex dynamics of these habitats have been examined under future climate predictions, few ecosystem models incorporate influences from fauna, such as the diamondback terrapin, the only estuarine turtle native to North America. This review examines the impacts of climate change on diamondback terrapins (Malaclemys terrapin) and the role that terrapins play as higher trophic level predators and keystone species in driving the dynamics of these ecosystems. We also review the potential implications of changes to terrapin populations on coastal ecosystems as a conservation challenge and suggest solutions to advance our understanding of those complex systems. Because of their role as a keystone and area-sensitive species that helps maintain healthy coastal habitats by foraging on herbivorous periwinkle snails, alterations to terrapin life history from climate change are expected, which could have significant impacts to the conservation of coastal habitats. Life history alterations could occur due to individual stressors, such as warming temperatures altering terrapin sex ratios. However, because of the complexity of these coastal systems, these stressors could also act additively or synergistically. Inclusion of faunal taxa such as the diamondback terrapin in modeling efforts examining climate change impacts to coastal ecosystems would better represent the complexity of these habitats thereby providing a more comprehensive evaluation of the entire ecosystem, resulting in more effective conservation strategies.

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Salt Marsh Habitats and Diamondback Terrapins in a Rapidly Changing Climate: A Review

Lamont,

Osland,

Baustian

2024

Estuaries and Coasts

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Impact of Pulse Disturbances on Phytoplankton: How Four Storms of Varying Magnitude, Duration, and Timing Altered Community Responses

Claflin,

Steichen,

Henrichs

et al. 2024

Environments

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Estuarine phytoplankton communities are acclimated to environmental parameters that change seasonally. With climate change, they are having to respond to extreme weather events that create dramatic alterations to ecosystem function(s) on the scale of days. Herein, we examined the short term (<1 month) shifts in phytoplankton communities associated with four pulse disturbances (Tax Day Flood in 2016, Hurricane Harvey in 2017, Tropical Storm Imelda in 2019, and Winter Storm Uri in 2021) that occurred in Galveston Bay (TX, USA). Water samples collected daily were processed using an Imaging FlowCytobot (IFCB), along with concurrent measurements of temperature, salinity, and chlorophyll-a. Stronger storm events with localized heavy precipitation and flooding had greater impacts on community composition, increasing diversity (Shannon–Weiner and Simpson Indices) while a cold wave event lowered it. Diatoms and dinoflagellates accounted for the largest fraction of the community, cyanobacteria and chlorophytes varied mostly with salinity, while euglenoids, cryptophytes, and raphidophytes, albeit at lower densities, fluctuated greatly. The unconstrained variance of the redundancy analysis models pointed to additional environmental processes than those measured being responsible for the changes observed. These findings provide insights into the impact of pulse disturbances of different magnitudes, durations, and timings on phytoplankton communities.

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Response of a Phytoplankton Community in a Subtropical Estuary to a Pulse Disturbance Driven by a Combo Hurricane and Extreme Rainfall Event

Cited by 2 publications

References 84 publications

Salt Marsh Habitats and Diamondback Terrapins in a Rapidly Changing Climate: A Review

Salt Marsh Habitats and Diamondback Terrapins in a Rapidly Changing Climate: A Review

Impact of Pulse Disturbances on Phytoplankton: How Four Storms of Varying Magnitude, Duration, and Timing Altered Community Responses

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