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Bogarín MRA, Reis LK, Laura VA, Pott A, Szabo JK, Garcia LC. Morphological and phenological strategies for flooding tolerance in Cerrado and Pantanal trees: implications for restoration under new legislation. Restor Ecol 2022. [DOI: 10.1111/rec.13660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Marcia Raquel Avalos Bogarín
- Laboratório Ecologia da Intervenção (LEI), Instituto de Biociências Universidade Federal de Mato Grosso do Sul, Avenida Costa e Silva, s/n°, Bairro Universitário 79.070‐900 Campo Grande, Mississippi Brazil
| | - Letícia Koutchin Reis
- Laboratório Ecologia da Intervenção (LEI), Instituto de Biociências Universidade Federal de Mato Grosso do Sul, Avenida Costa e Silva, s/n°, Bairro Universitário 79.070‐900 Campo Grande, Mississippi Brazil
| | | | - Arnildo Pott
- Programa de Pós‐graduação em Biologia Vegetal ‐ PPGBV, Laboratório de Ecologia Vegetal (LEV), Instituto de Biociências Universidade Federal de Mato Grosso do Sul, Avenida Costa e Silva, s / n°, Bairro Universitário 79.070‐900 Campo Grande, Mississippi Brazil
| | - Judit Kriszta Szabo
- Programa de Biodiversidade e Evolução Universidade Federal da Bahia, Instituto de Biologia, 1154, R. Barão de Jeremoabo, 668, Ondina Salvador BA CEP 40170‐115 Brazil
- College of Engineering, IT and Environment Charles Darwin University Casuarina Northern Territory 0909 Australia
| | - Letícia Couto Garcia
- Laboratório Ecologia da Intervenção (LEI), Instituto de Biociências Universidade Federal de Mato Grosso do Sul, Avenida Costa e Silva, s/n°, Bairro Universitário 79.070‐900 Campo Grande, Mississippi Brazil
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Zhu G, Li Y, Sun Z, Kanae S. Response of vegetation to submergence along Jingjiang Reach of the Yangtze River. PLoS One 2021; 16:e0251015. [PMID: 33961662 PMCID: PMC8104387 DOI: 10.1371/journal.pone.0251015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/17/2021] [Indexed: 11/18/2022] Open
Abstract
This work explores the changes in vegetation coverage and submergence time of floodplains along the middle and lower reaches of the Yangtze River (i.e., the Jingjiang River) and the relations between them. As the Three Gorges Dam has been operating for more than 10 years, the original vegetative environment has been greatly altered in this region. The two main aspects of these changes were discovered by analyzing year-end image data from remote sensing satellites using a dimidiate pixel model, based on the normalized difference vegetation index, and by calculating water level and topographic data over a distance of 360 km from 2003–2015. Given that the channels had adjusted laterally, thus exhibiting deeper and broader geometries due to the Three Gorges Dam, 11 floodplains were classified into three groups with distinctive features. The evidence shows that, the floodplains with high elevation have formed steady vegetation areas and could hardly be affected by runoff and usually occupied by humans. The low elevation group has not met the minimal threshold of submerging time for vegetation growth, and no plants were observed so far. Based on the facts summed up from the floodplains with variable elevation, days needed to spot vegetation ranges from 70 to 120 days which happened typically near 2006 and between 2008 and 2010, respectively, and a negative correlation was detected between submergence time and vegetation coverage within a certain range. Thus, floods optimized by the Three Gorges Dam have directly influenced plant growth in the floodplains and may also affect our ability to manage certain types of large floods. Our conclusions may provide a basis for establishing flood criteria to manage the floodplain vegetation and evaluating possible increases in resistance caused by high-flow flooding when these floodplains are submerged.
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Affiliation(s)
- Guoliang Zhu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
- * E-mail:
| | - Yitian Li
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
| | - Zhaohua Sun
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
| | - Shinjiro Kanae
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Tokyo, Japan
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Bouska KL, Houser JN, De Jager NR, Drake DC, Collins SF, Gibson-Reinemer DK, Thomsen MA. Conceptualizing alternate regimes in a large floodplain-river ecosystem: Water clarity, invasive fish, and floodplain vegetation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 264:110516. [PMID: 32250922 DOI: 10.1016/j.jenvman.2020.110516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 03/10/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Regime shifts - persistent changes in the structure and function of an ecosystem - are well-documented for some ecosystems and have informed research and management of these ecosystems. In floodplain-river ecosystems, there is growing interest from restoration practitioners in ecological resilience, yet regime shifts remain poorly understood in these ecosystems. To understand how regime shifts may apply to floodplain-river ecosystems, we synthesize our understanding of ecosystem dynamics using an alternate regimes conceptual framework. We present three plausible sets of alternate regimes relevant to natural resource management interests within the Upper Mississippi River and Illinois River. These alternate regimes include: 1) a clear water and abundant vegetation regime vs. a turbid water and sparse vegetation regime in lentic, off-channel areas, 2) a diverse native fish community regime vs. an invasive-dominated fish community regime, and 3) a regime characterized by a diverse and dynamic mosaic of floodplain vegetation types vs. one characterized as a persistent invasive wet meadow monoculture. For each set of potential alternate regimes, we review available literature to synthesize known or hypothesized feedback mechanisms that reinforce regimes, controlling variables that drive regime transitions, and current restoration pathways. Our conceptual models provide preliminary support for the existence of alternate regimes in floodplain-river ecosystems. Quantitatively testing hypotheses contained within the conceptual model are important next steps in evaluating the model. Ultimately, the synthesis and evaluation of alternate regimes can inform the utility of resilience concepts in restoration and management on the Upper Mississippi River and Illinois River and improve our understanding of ecosystem dynamics in other large, heavily managed floodplain-river ecosystems.
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Affiliation(s)
- Kristen L Bouska
- U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI, 54603, USA.
| | - Jeffrey N Houser
- U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI, 54603, USA
| | - Nathan R De Jager
- U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI, 54603, USA
| | - Deanne C Drake
- Wisconsin Department of Natural Resources, La Crosse Field Station, 2630 Fanta Reed Road, La Crosse, WI, 54603, USA
| | - Scott F Collins
- Texas Tech University, 2500 Broadway, Lubbock, TX, 79409, USA; Illinois Natural History Survey, Kaskaskia Biological Station, 1235 CR 1000N, Sullivan, IL, 61951, USA
| | - Daniel K Gibson-Reinemer
- Adams State University, 208 Edgemont Boulevard, Alamosa, CO, 81101, USA; Illinois Natural History Survey, Illinois River Biological Station, 704 N. Schrader Avenue, Havana, IL, 62644, USA
| | - Meredith A Thomsen
- University of Wisconsin - La Crosse, 1725 State Street, La Crosse, WI, 54601, USA
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Forte J, Mutiti C, Mutiti S. Assessing the Influence of Physical Factors and Human-Related Disturbances on Forested Wetland Communities in Georgia. SOUTHEAST NAT 2020. [DOI: 10.1656/058.019.0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Jenna Forte
- Georgia College and State University, Department of Biological and Environmental Sciences, Milledgeville, GA 30161
| | - Christine Mutiti
- Georgia College and State University, Department of Biological and Environmental Sciences, Milledgeville, GA 30161
| | - Samuel Mutiti
- Georgia College and State University, Department of Biological and Environmental Sciences, Milledgeville, GA 30161
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