Decision support tool: Mottled duck habitat management and conservation in the Western Gulf Coast

Krainyk, Anastasia; Ballard, Bart M.; Brasher, Michael G.; Wilson, Barry C.; Parr, Mark W.; Edwards, Cynthia Kallio

doi:10.1016/j.jenvman.2018.09.054

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…For example, by incorporating what is known about the habitat requirements of mottled ducks during the nesting and breeding seasons, decision support tools can identify areas that should be prioritized for conservation, management, and restoration. At present, a decision support tool exists for WGC mottled ducks, which was validated using mottled duck survey data (Krainyk et al 2019), and provides a basic framework for conservation prioritization. No such tool exists for researchers of mottled ducks in Florida.…”

Section: Discussionmentioning

confidence: 99%

Breeding Ecology of Mottled Ducks: A Review

Bonczek

Ringelman

2021

J Wildl Manag

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Mottled ducks (Anas fulvigula) are endemic to the Gulf Coast of North America, and their range stretches from Alabama to the Laguna Madre of Mexico, with a distinct population in peninsular Florida and an introduced population in South Carolina. As one of the few non‐migratory ducks in North America, mottled ducks depend on a variety of locally available habitat throughout the annual cycle, and threats to these landscapes may affect mottled ducks more acutely than migratory species. Annual population monitoring has revealed declines in mottled duck populations in Texas and Louisiana since 2008, and the genetic integrity of the Florida population has been muddled by the presence of large numbers of feral mallards (Anas platyrhynchos) resulting in hybridization. Similar to other closely related dabbling ducks, mottled duck populations are influenced by recruitment and breeding season survival, so changes in these factors may contribute to population decline. Accordingly, researchers have attempted to address various aspects of mottled duck breeding season ecology and population dynamics since the 1950s. We conducted a literature review on this topic by searching a combination of key terms using Google Scholar, including mottled duck, nesting ecology, habitat use, breeding incidence, nest success, brood, and breeding season survival, and followed citation trees to eventually aggregate information from nearly 50 publications on mottled duck breeding ecology. Our review concluded that mottled ducks use brackish and intermediate coastal marsh, including managed impoundments, and agricultural land during the breeding season. Their nests can be found in pastures, levees, dry cordgrass marsh, cutgrass marsh, spoil banks, and small islands. Nesting propensity and nest success estimates are often lower than other waterfowl species that are characterized by stable or increasing populations. Broods use wetlands composed of a mix of open water with submerged and emergent vegetation. Breeding season survival is higher for the Florida population than the western Gulf Coast population, but adult survival in both geographies is comparable to (or higher than) that of other dabbling duck species. Breeding habitat use, breeding season survival, and nest‐site selection and success have been studied extensively in mottled ducks, whereas information on nesting propensity, renesting intensity, and post‐hatch ecology is lacking. © 2021 The Wildlife Society.

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Section: Discussionmentioning

confidence: 99%

Breeding Ecology of Mottled Ducks: A Review

Bonczek

Ringelman

2021

J Wildl Manag

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“…It is noted that pollution discharge has the most significant influence on the basin's environmental risk [31]. Via consulting various literature, it is known that the sources of pollution in the Harbin Basin primarily depend on three factors: industrial, agricultural, and residential pollution [32][33][34]. Agricultural pollution includes pollution generated by farming and livestock breeding.…”

Section: Pollution Source Accountingmentioning

confidence: 99%

Environmental Risk Assessment of the Harbin Section of the Songhua River Basin Based on Multi-Source Data Fusion

Zhao,

Sun,

Tang

et al. 2023

Water

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Surface water is a vital resource for human survival. However, economic and social development has resulted in significant pollutants from human activities, causing environmental pollution in watersheds. This pollution has had a profound impact on the surface water environment. However, limited studies have been conducted on the environmental risk evaluation of the watershed. In this study, we accounted for agricultural, industrial, and domestic source discharges in the districts and counties of the Harbin section of the Songhua River Basin for 2021. Data were collected from Statistical Yearbooks and governmental departments, and the characteristics of pollutant discharges in Harbin’s districts and counties were analyzed. Subsequently, we employed the Back Propagation neural network optimization method, combining remote sensing data, accounting data, pollution discharge data from each district and county, and economic and social data from the Statistical Yearbook and literature. This fusion of multiple data sources facilitated the construction of a watershed environmental risk evaluation system. The analysis considered four levels: economic and social, resource load, environmental infrastructure, and pollution discharge. Via this comprehensive evaluation, we identified the reasons for environmental risks in the water environment of the Harbin section of the Songhua River Basin. The evaluation results indicate that Nangang District, Xiangfang District, and Pingfang District face a higher risk to the water environment. Consequently, recommendations for mitigating water environment risks in these areas and across Harbin City are presented. The research methods and findings in this paper contribute valuable insights for developing control strategies to manage water quality in critically polluted areas of the Harbin section of the Songhua River Basin, providing a scientific foundation for regional river water quality management studies.

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“…They can also identify landscapes most suitable for conservation action and help guide decisions with multiple, sometimes competing, objectives (Garcia and Armbruster 1997;Roloff et al 1999). As such, wildlife conservation planners are adopting DSTs, especially those identifying priority landscapes for habitat delivery Krainyk et al 2019a;Ricca and Coates 2020), because they can produce conservation gains with lower costs (Strassburg et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Multi-scale waterfowl habitat conservation planning in Wisconsin, USA

et al. 2021

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Context The North American Waterfowl Management Plan and the Upper Mississippi River/Great Lakes Joint Venture waterfowl habitat conservation strategy provide continental and regional guidance, respectively, for waterfowl habitat conservation planning. They were not designed to guide watershed- scale waterfowl habitat delivery. Objective Our goal was to develop a waterfowl habitat decision support framework for the state of Wisconsin using biological and social criteria to guide state and local-scale practitioners with an explicit link to larger scale objectives. Methods We engaged a core group of wetland and waterfowl experts to decide upon decision support layers relevant to biological and social objectives, evaluate variables, establish weights, and review model outputs for reasonableness and accuracy. We used spatial analyst tools, kernel density estimators, and weighted sums to create spatially explicit models to identify landscapes and watersheds important for waterfowl. We identified habitat resources that exist currently (Conservation Capital) and considered potential resources (Conservation Opportunities) which could enhance wetland restoration efforts. Results We developed a transparent framework to identify and prioritize landscapes for conserving waterfowl habitat at the Hydrologic Unit Code 12 watershed scale in Wisconsin, by maintaining continental and regional priorities, and including local landscape characteristics, biological criteria, and researcher, manager, and biologist expertise. Conclusions Local detail is critical for implementing waterfowl habitat delivery and making efficient use of limited funds for conservation but can be more abstract in larger regional or continental conservation planning. Our models are science-based, transparent, defensible, and can be modified as social, political, biological, and environmental forces change.

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Decision support tool: Mottled duck habitat management and conservation in the Western Gulf Coast

Cited by 7 publications

References 24 publications

Breeding Ecology of Mottled Ducks: A Review

Breeding Ecology of Mottled Ducks: A Review

Environmental Risk Assessment of the Harbin Section of the Songhua River Basin Based on Multi-Source Data Fusion

Multi-scale waterfowl habitat conservation planning in Wisconsin, USA

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