Methodologies and Management Framework for Restoration of Wetland Hydrologic Connectivity: A Synthesis

Meng, Bo; Liu, Jingling; Bao, Kunshan; Sun, Bin

doi:10.1002/ieam.4256

Cited by 27 publications

(15 citation statements)

References 140 publications

(185 reference statements)

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“…Managers should also consider leaving several stands of cattail, given that certain species (e.g., Marsh Wren) benefit from the structure these patches of taller emergent vegetation provide (Kroodsma & Verner, 2020). Because our study indicated that Least Bittern, Swamp Sparrow, and Common Gallinule may be area‐sensitive, we recommend that managers seek opportunities to increase wetland connectivity and “defragment” wetlands (Meng et al, 2020). Greater connectivity may increase breeding opportunities for these species.…”

Section: Discussionmentioning

confidence: 99%

Spatial drivers of wetland bird occupancy within an urbanized matrix in the Upper Midwestern United States

2022

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Wetland birds are undergoing severe population declines in North America, with habitat degradation and wetland loss considered two of the primary causes. Due to the cryptic nature of many wetland bird species, the ecological conditions (e.g., matrix composition) that influence bird occupancy, and the relevant spatial scales at which to measure bird responses, remain unclear but may affect inference about wetland use and suitability. We conducted wetland bird surveys at 477 points across northeastern Illinois and northwestern Indiana within the highly urbanized landscape surrounding Chicago. Using remotely sensed land cover data, we built occupancy models for 10 wetland bird species (American Coot Fulica americana, Black-crowned Night-Heron Nycticorax nycticorax, Blue-winged Teal Anas discors, Common Gallinule Gallinula galeata, Least Bittern Ixobrychus exilis, Marsh Wren Cistothorus palustris, Pied-billed Grebe Podilymbus podiceps,

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Section: Discussionmentioning

confidence: 99%

Spatial drivers of wetland bird occupancy within an urbanized matrix in the Upper Midwestern United States

2022

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“…For instance, Russell et al [11] used basin topography to forecast the potential for wetland rehabilitation in the basin of the San Luis Rey River in southern California. Meng et al [39] highlighted the optimization of hydrological communication patterns to rehabilitate the degraded wetlands. However, these studies considered the rehabilitation potential from only a single dimension, that of hydrological condition.…”

Section: Discussionmentioning

confidence: 99%

Using Multisource Geospatial Data to Identify Potential Wetland Rehabilitation Areas: A Pilot Study in China’s Sanjiang Plain

Qiu

Liu

Mao

et al. 2020

Water

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Wetland rehabilitation, highlighted in the United Nations (UN) Sustainable Development Goals (SDGs), is imperative for responding to decreased regional biodiversity and degraded ecosystem functions and services. Knowing where the most suitable wetland rehabilitation areas are can strengthen scientific planning and decision-making for natural wetland conservation and management implementation. Therefore, we integrated multisource geospatial data characterizing hydrological, topographical, management, and policy factors, including maximum surface water coverage, farming time, anthropogenic disturbance, and wetland protection level, to identify potential wetland rehabilitation areas in the Sanjiang Plain (SJP), the largest marsh distribution and a hotspot wetland loss region in China. Our results indicate that a total of 11,643 km2 of wetlands were converted into croplands for agricultural production from 1990 to 2018. We estimated that 5415 km2 of the croplands were suitable for wetland rehabilitation in the SJP, of which 4193 km2 (77%) have high rehabilitation priority. Specifically, 63% of the potential areas available for wetland rehabilitation are dry croplands (3419 km2), the rest (37%) being paddy fields. We argue that the selected indicators and approach used in this study to determine potential wetland rehabilitation areas could guide their investigation, at either the provincial or national scale and would be beneficial to conservation and sustainable management of wetlands in the SJP.

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“…were found degraded in most of the selected wetlands. Hydrological strength is fundamental to an aquatic ecosystem (Meng et al, 2020;Li et al, 2021). Since the wetlands witnessed the adverse impact of hydrological transformation, often promoted some other associated causes like habitat quality change, water pollution, biodiversity loss, etc.…”

Section: Identifying Associated Modification In Some Specific Casesmentioning

confidence: 99%

Impact of river flow modification on wetland hydrological and morphological characters

Saha

Pal

Sarda

2022

Preprint

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A good number of researchers investigated the impact of flow modification on hydrological, ecological, geomorphological conditions in a river. A few works also focused on hydrological modification on wetland with some parameters but as far the knowledge is concerned, linking river flow modification to wetland hydrological and morphological transformation following an integrated modeling approach is almost absent. The current study aimed to explore the degree of hydrological alteration in the river and its effect on downstream riparian wetlands adopting advanced modeling approaches. After damming maximally 67 to 95% hydrological alteration was recorded in respect to maximum, minimum, and average discharges. Wavelet transformation analysis figured out a strong power spectrum after 2012 (damming year). Due to attenuation of flow, the active inundation area was reduced by 66.29%. After damming, 524.03 km2 (48.97% to total pre-dam wetland) was completely obliterated. Hydrological strength (HS) modeling also reported areas under high HS was declined by 14% after post-dam condition. WSS and HS matrix, a new approach, used to feature wetland coupling inundation connectivity and current hydrological state. HS under critical and stress wetland hydrological security zones deteriorated in the post-dam period. The morphological transformation was also well recognized showing an increase of area under the patch, edge, and decrease of the area under large core area. All these findings established a good linkage between river flow modification and wetland transformation and it provided a good clue for managing wetland.

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Methodologies and Management Framework for Restoration of Wetland Hydrologic Connectivity: A Synthesis

Cited by 27 publications

References 140 publications

Spatial drivers of wetland bird occupancy within an urbanized matrix in the Upper Midwestern United States

Spatial drivers of wetland bird occupancy within an urbanized matrix in the Upper Midwestern United States

Using Multisource Geospatial Data to Identify Potential Wetland Rehabilitation Areas: A Pilot Study in China’s Sanjiang Plain

Impact of river flow modification on wetland hydrological and morphological characters

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