Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions

Abstract Burrowing animals can profoundly affect the biological structure and ecosystem functions of their environments. For instance, burrowing crabs increase sediment deposition and facilitate sediment homogenization and turnover, with potential impacts to sediment biogeochemistry. However, the re...

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Main Authors: S. Rinehart, J. M. Dybiec, B. Mortazavi, J. A. Cherry
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:Ecosphere
Subjects:
Online Access:https://doi.org/10.1002/ecs2.4431
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author S. Rinehart
J. M. Dybiec
B. Mortazavi
J. A. Cherry
author_facet S. Rinehart
J. M. Dybiec
B. Mortazavi
J. A. Cherry
author_sort S. Rinehart
collection DOAJ
description Abstract Burrowing animals can profoundly affect the biological structure and ecosystem functions of their environments. For instance, burrowing crabs increase sediment deposition and facilitate sediment homogenization and turnover, with potential impacts to sediment biogeochemistry. However, the relative importance of burrowing crabs on sediment dynamics can vary considerably between, and within, habitats. Sediment properties influence how burrowing crabs will affect edaphic conditions, but these studies often assume homogenous sediment conditions and fail to consider how sediment properties change with depth. Thus, understanding how burrowing crab effects on sediment properties are influenced by the vertical sediment profile should inform where burrowing crabs structure edaphic conditions. Here, we conducted an intensive field survey across three tidal salt marshes with variable sediment properties to understand if marsh vertical sediment profiles can help predict the nature of burrowing crab–sediment relationships. We found that burrowing crabs homogenize sediments in all marshes, but their effects on sediment homogenization and edaphic conditions were greater in marshes with highly stratified vertical sediment profiles. Our study suggests that understanding the vertical sediment profile of a salt marsh may provide critical insights into how crab burrowing may influence the edaphic conditions and physical characteristics of marsh surface sediments—especially in restored, created, and managed salt marshes.
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spelling doaj.art-5cd5db4e9d734d9ea5796f25ed99abc72023-03-30T01:42:38ZengWileyEcosphere2150-89252023-03-01143n/an/a10.1002/ecs2.4431Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditionsS. Rinehart0J. M. Dybiec1B. Mortazavi2J. A. Cherry3Department of Biological Sciences University of Alabama Tuscaloosa Alabama USADepartment of Biological Sciences University of Alabama Tuscaloosa Alabama USADepartment of Biological Sciences University of Alabama Tuscaloosa Alabama USADepartment of Biological Sciences University of Alabama Tuscaloosa Alabama USAAbstract Burrowing animals can profoundly affect the biological structure and ecosystem functions of their environments. For instance, burrowing crabs increase sediment deposition and facilitate sediment homogenization and turnover, with potential impacts to sediment biogeochemistry. However, the relative importance of burrowing crabs on sediment dynamics can vary considerably between, and within, habitats. Sediment properties influence how burrowing crabs will affect edaphic conditions, but these studies often assume homogenous sediment conditions and fail to consider how sediment properties change with depth. Thus, understanding how burrowing crab effects on sediment properties are influenced by the vertical sediment profile should inform where burrowing crabs structure edaphic conditions. Here, we conducted an intensive field survey across three tidal salt marshes with variable sediment properties to understand if marsh vertical sediment profiles can help predict the nature of burrowing crab–sediment relationships. We found that burrowing crabs homogenize sediments in all marshes, but their effects on sediment homogenization and edaphic conditions were greater in marshes with highly stratified vertical sediment profiles. Our study suggests that understanding the vertical sediment profile of a salt marsh may provide critical insights into how crab burrowing may influence the edaphic conditions and physical characteristics of marsh surface sediments—especially in restored, created, and managed salt marshes.https://doi.org/10.1002/ecs2.4431bioturbationcoastal restorationecosystem engineersfiddler crabsGulf of Mexicoindirect effects
spellingShingle S. Rinehart
J. M. Dybiec
B. Mortazavi
J. A. Cherry
Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
Ecosphere
bioturbation
coastal restoration
ecosystem engineers
fiddler crabs
Gulf of Mexico
indirect effects
title Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
title_full Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
title_fullStr Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
title_full_unstemmed Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
title_short Stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
title_sort stratified vertical sediment profiles increase burrowing crab effects on salt marsh edaphic conditions
topic bioturbation
coastal restoration
ecosystem engineers
fiddler crabs
Gulf of Mexico
indirect effects
url https://doi.org/10.1002/ecs2.4431
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AT jmdybiec stratifiedverticalsedimentprofilesincreaseburrowingcrabeffectsonsaltmarshedaphicconditions
AT bmortazavi stratifiedverticalsedimentprofilesincreaseburrowingcrabeffectsonsaltmarshedaphicconditions
AT jacherry stratifiedverticalsedimentprofilesincreaseburrowingcrabeffectsonsaltmarshedaphicconditions