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Soria-Barreto M, Pérez-Ceballos R, Zaldívar-Jiménez A, Gelabert Fernández R. Assessment of aquatic food web and trophic niche as a measurement of recovery function in restored mangroves in the Southern Gulf of Mexico. PeerJ 2023; 11:e15422. [PMID: 37304885 PMCID: PMC10252823 DOI: 10.7717/peerj.15422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/25/2023] [Indexed: 06/13/2023] Open
Abstract
Mangroves are coastal wetlands with high biodiversity and productivity, with great interaction with coastal environments. In the face of worldwide mangrove loss, restoration projects attempt to recover ecosystem composition and functioning over time. Our objective was to examine and compare the food webs in mangrove areas with different restoration times and in a reference mangrove in Términos Lagoon, Mexico. We estimated the trophic structure, identified the carbon resources that maintain aquatic consumers through the analysis of stable isotopes, and compared the trophic niche of the restored mangroves with the reference mangrove. We analyzed environmental variables, trophic structure, and contributions of resources during three seasons: rainy, dry, and "nortes". Environmental changes and food structure changed in response to regional seasons. Bayesian mixing models indicated that food webs varied seasonally as a response to the primary productivity developed at Términos Lagoon. As expected, the assimilation of C3 plants in the reference mangrove was highest, as a primary ("nortes" season) and secondary resource (dry and rainy seasons). The restored mangroves depended mainly on allochthonous resources (seagrass, epiphytes, and phytoplankton). The assimilation of these resources highlighted the importance of connectivity and the input of sources of carbon from nearby coastal environments. Trophic niche analysis showed that the area with longer restoration time was more similar to the reference mangrove, which is evidence of the importance and efficacy of the restoration process, as well as the restoration of the ecosystem function over time.
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Affiliation(s)
- Miriam Soria-Barreto
- Centro de Investigación de Ciencias Ambientales, Facultad de Ciencias Naturales, Universidad Autónoma del Carmen, Ciudad del Carmen, Campeche, Mexico
- Laboratorio de Ecología Acuática y Monitoreo Ambiental, CEDESU, Universidad Autónoma de Campeche, San Francisco de Campeche, Campeche, Mexico
| | - Rosela Pérez-Ceballos
- CONACYT Instituto de Ciencias del Mar y Limnología Estación El Carmen UNAM, Universidad Nacional Autónoma de México, Ciudad del Carmen, Campeche, Mexico
| | | | - Rolando Gelabert Fernández
- Centro de Investigación de Ciencias Ambientales, Facultad de Ciencias Naturales, Universidad Autónoma del Carmen, Ciudad del Carmen, Campeche, Mexico
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Capparelli MV, McNamara JC, Thurman CL, Pérez-Ceballos R, Gómez-Ponce MA, Cardoso-Mohedano JG, Moulatlet GM. Can tolerances of multiple stressors and calculated safety margins in fiddler crabs predict responses to extreme environmental conditions resulting from climate change? MARINE POLLUTION BULLETIN 2022; 179:113674. [PMID: 35489093 DOI: 10.1016/j.marpolbul.2022.113674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/18/2022] [Accepted: 04/16/2022] [Indexed: 06/14/2023]
Abstract
To comprehend mangrove crab responses to predicted global climate changes, we assessed submersion and desiccation survival durations and salinity tolerances and upper thermal limits in fiddler crabs from Isla del Carmen, Yucatán Peninsula. Based on their tolerances of extreme ambient conditions, we also calculated safety margins using abiotic monitoring data. The two most terrestrial species, Minuca rapax and Leptuca panacea, exhibited submersion tolerances of from 22 to 40 h, and desiccation tolerances of from 30 to 55 h; LC50's were ≈45‰S and UT50's were ≈40 °C. The two least terrestrial species, M. vocator and L. speciosa, were less tolerant of all experimental challenges, showing submersion and desiccation tolerances of <6 h, and LC50's of 36‰S and UT50's of 38 °C. While these fiddler crabs inhabit niches closer to their salinity and desiccation/submersion tolerances than to their temperature limits, all are clearly vulnerable to the multiple stressors that accompany anticipated global climate change.
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Affiliation(s)
- Mariana V Capparelli
- Estación el Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km. 9.5, C. P 24157 Ciudad del Carmen, Campeche, Mexico.
| | - John C McNamara
- Departamento de Biologia, Faculdade de Filosofa, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil; Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, SP 11600-000, Brazil
| | - Carl L Thurman
- Department of Biology, University of Northern Iowa, Cedar Falls, IA 50614-0421, USA
| | - Rosela Pérez-Ceballos
- Estación el Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km. 9.5, C. P 24157 Ciudad del Carmen, Campeche, Mexico
| | - Mario A Gómez-Ponce
- Estación el Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km. 9.5, C. P 24157 Ciudad del Carmen, Campeche, Mexico
| | - José-Gilberto Cardoso-Mohedano
- Estación el Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km. 9.5, C. P 24157 Ciudad del Carmen, Campeche, Mexico
| | - Gabriel M Moulatlet
- Red de Biología Evolutiva, Instituto de Ecología, A.C., Xalapa, Veracruz, Mexico
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Pérez-Ceballos R, Zaldívar-Jiménez A, Canales-Delgadillo J, López-Adame H, López-Portillo J, Merino-Ibarra M. Determining hydrological flow paths to enhance restoration in impaired mangrove wetlands. PLoS One 2020; 15:e0227665. [PMID: 31999717 PMCID: PMC6992180 DOI: 10.1371/journal.pone.0227665] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 12/26/2019] [Indexed: 11/24/2022] Open
Abstract
The restoration of mangroves has gained prominence in recent decades. Hydrological rehabilitation has been undertaken to connect impaired mangroves with the sea, lagoons or estuaries. Because mangrove hydrodynamics occurs on the surface and interstitial spaces in the sediment, we propose to determine the hydrological flow paths to restore the hydrological regimes of the impaired mangroves. The hydrological flow paths were determined through a micro basin analysis based on microtopographic data to generate a digital elevation model. Applying this methodological approach, the hydrology of an impaired area on a barrier island in the Gulf of Mexico was restored by excavating, desilting or clearing the channels on the identified hydrological flow paths. This area was compared to one in which impaired mangroves were reconnected to the marine lagoon but disregarding the flow paths. Data collected in both areas were evaluated by flood level analysis, using two methods: (i) a simple linear regression model (SLRM) and (ii) spectral analysis (SA), also known as dominant frequency analysis. The results suggest that restoration based on the hydrological flow paths was more effective than the direct opening to the nearest main water body without accounting for the microtopography. In both areas, soil salinity and sulfides decreased after hydrological reconnection. However, a greater efficiency in the investment of time and human resources was achieved when preferential flow paths were identified and taken into account. The methodological procedures described in this study are of universal application to other mangrove restoration programs.
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Affiliation(s)
- Rosela Pérez-Ceballos
- CONACYT Instituto de Ciencias del Mar y Limnología Estación El Carmen UNAM, Cd. del Carmen, Campeche, México
| | | | - Julio Canales-Delgadillo
- CONACYT Instituto de Ciencias del Mar y Limnología Estación El Carmen UNAM, Cd. del Carmen, Campeche, México
| | | | | | - Martín Merino-Ibarra
- Unidad Académica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Circuito exterior S/N, Ciudad Universitaria, Coyoacán, México
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