Wetlands最新文献

{"title":"Informing the Conservation of Ephemerally Flooded Wetlands Using Hydrologic Regime and LiDAR-Based Habitat Assessments","authors":"Houston C. Chandler, Daniel L. McLaughlin, Carola A. Haas","doi":"10.1007/s13157-023-01767-3","DOIUrl":"https://doi.org/10.1007/s13157-023-01767-3","url":null,"abstract":"<p>Integrated assessments of wetland hydrologic regimes and other environmental factors are key to understanding the ecology of species breeding in ephemerally flooded wetlands, and reproductive success is often directly linked to suitable flooding regimes, both temporally and spatially. We used high-resolution Light Detection and Ranging (LiDAR) data to develop bathymetric stage–flooded area relationships, predict spatial extent of flooding, and assess vegetation structure in 30 pine flatwoods wetlands. For a subset of wetlands with monitoring wells, we then integrated bathymetric and water level data to create multi-year time series of daily flooded areas. We then related the observed flooded areas to topographic and landscape metrics to develop models predicting flooded extents in wetlands without monitoring wells. We found that stage–area curves varied depending on wetland size and bathymetry, such that a one-cm increase in water depth could generate flooded area increases ranging from hundreds to thousands of square meters. Flooded areas frequently fragmented into discrete flooded patches as wetlands dried, and there was a weak positive correlation between hydroperiod and mean flooded area across multiple years (r = 0.32). To evaluate the utility of using LiDAR-derived data to support the conservation of wetland-breeding species, we combined metrics of flooding and vegetation to map potentially suitable habitat for the imperiled reticulated flatwoods salamander (<i>Ambystoma bishopi</i>). Overall, projects focusing on the ecology of wetland-breeding species could gain a broader understanding of habitat effects from coupled assessments of bathymetry, water level dynamics, and other wetland characteristics.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"14 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Satellite Remote Sensing Shows Maintenance of Fish Pond Area Improves Persistence of Eurasian Otters in Hong Kong","authors":"","doi":"10.1007/s13157-024-01789-5","DOIUrl":"https://doi.org/10.1007/s13157-024-01789-5","url":null,"abstract":"<h3>Abstract</h3> <p>Urbanization and land cover change are significantly affecting the availability of habitats for wildlife worldwide. However, linking species persistence to large-scale habitat changes is challenging, especially when wildlife monitoring data is lacking. In China, the Eurasian otter (<em>Lutra lutra</em>) is a species of conservation concern and is listed as endangered as a consequence of declining populations across the country. Hong Kong is home to a small population of Eurasian otters, which are primarily restricted to a set of wetlands in the inner Deep Bay area. However, the drivers of their historical distribution changes are largely unknown. We combined otter spraint data from 2018 to 2019 with historical records of otter data spanning 1959–2018 to examine otter habitat preference and changes in their distribution, relating this with land cover changes measured by Landsat-5 and Landsat-8 satellite remote sensing in the past (1986 and 1995) and present (2018) using supervised random forest classification. We found that otters showed habitat preference for fish ponds and watercourses, and persisted in areas where fish pond area was more readily available. We also found no significant effect of the extent of land cover changes on otter persistence, suggesting that the species is resilient to some level of fish pond loss and find value in available terrestrial habitats. Our results demonstrate the utility of relating satellite remote sensing data to species distribution data over decadal time scales and highlight the importance of managing terrestrial and wetland habitats for otters and other key species in increasingly urbanized landscapes.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"1 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What waterfowl hunters want: exploring heterogeneity in hunting trip preferences","authors":"","doi":"10.1007/s13157-023-01744-w","DOIUrl":"https://doi.org/10.1007/s13157-023-01744-w","url":null,"abstract":"<h3>Abstract</h3> <p>Canadian and American waterfowl hunters were surveyed to identify their hunting trip preferences. Respondents were individuals that were now participating or had participated in waterfowl hunting, and most had hunted the majority of the last five years. We identified four latent classes of waterfowl hunters that varied in their preferences for harvest, access effort, length of travel, quantity of waterfowl seen, and the potential for interference/competition. We found a diminishing return associated with the number of waterfowl harvested, and that ‘devoted’ and ‘local’ hunters did not perceive appreciable benefit from harvesting more birds beyond harvesting a single bird. Results highlight the importance of not only considering population size, but also the location of habitat for people and waterfowl. Our results provide waterfowl managers important insights into the heterogeneity of North American waterfowl hunters by highlighting differences in priorities for waterfowl hunting trips. Notably, to address this heterogeneity, managers could consider the balance of objectives, actions and resources designed to satisfy current waterfowl hunters. Managing access to improve the likelihood that hunters will see and have opportunities to harvest some waterfowl has benefit to hunters.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"102 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mangrove Forests of Biscayne Bay, FL, USA may Act as Sinks for Plastic Debris","authors":"","doi":"10.1007/s13157-024-01785-9","DOIUrl":"https://doi.org/10.1007/s13157-024-01785-9","url":null,"abstract":"<h3>Abstract</h3> <p>Mangrove forests of Biscayne Bay in southeast Florida, USA can sequester pollutants from freshwater inputs. This “filtering” of water minimizes point source discharges through canals, but mangroves may also play an important role in the cycling of plastic pollution that reaches the Bay. The objectives of this study are to determine: 1) The composition of debris in the Bay’s mangroves and 2) How the structure of mangrove forests affects debris distribution. Debris was hypothesized to be more abundant further into the forest due to trapping by vegetation, and mesoplastics (5 mm – 2.5 cm) would be positively correlated to macroplastics (&gt; 2.5 cm) due to fragmentation. Nine transects were surveyed and debris was recorded by size and potential origin. 94.5% of all debris was plastic of which 57.8% were fragments. Negative binomial generalized linear regression was used to relate total plastic and mesoplastic densities to distance from shoreline, elevation, basal area, prop root and pneumatophore cover, and mangrove seedling abundance. Plastic increased with distance from shore and basal area, although the latter was just above the <em>p</em>-value cut-off of 0.05 for mesoplastic (<em>p</em>-value = 0.0513), and was weakly negatively related to prop root coverage. Total plastic was weakly negatively related to red mangrove seedlings and pneumatophore coverage, although these relationships were less clear. Mesoplastic and macroplastic were positively correlated (<em>p</em>-value &lt; 0.05). Selected mangrove forests of Biscayne Bay appear to be sinks for plastic debris, where it accumulates in the interior forest from which it is unlikely to escape.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"77 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mapping the way to wetland conservation: A geomatic approach for the Oran region","authors":"Berrichi Faouzi, Chamakhi Djemoui, Benshila Naima","doi":"10.1007/s13157-024-01782-y","DOIUrl":"https://doi.org/10.1007/s13157-024-01782-y","url":null,"abstract":"<p>Wetlands, like any other ecosystem, have important characteristics (hydrology, soil, vegetation) that distinguish them from other ecosystems and allow them to provide vital habitats for insects, fish, birds, and other wildlife. Wetlands in the Wilaya of Oran, Algeria, include the Great Sebkha, the marshes of Macta, Lake Telamine, and the salt pans of Arzew, all known for their rich diversity of fauna and flora, are known worldwide for their ecological importance. The objective of this work is to develop an operational geomatic approach for the delineation, evaluation and use of information on North African wetlands. The Digital Atlas made it possible to highlight another aspect of this significant diversity of wetlands in western Algeria, through a new technique for presenting the results used in a web mapping. In the context of global changes driving a steep erosion of biodiversity, this study shows the importance of wetlands in western Algeria and allows citizens to learn about the richness, beauty and extent of their natural heritage. It contributes to public awareness and provides a valuable assessment and evaluation tool available to decision makers and professionals in the field of nature management and conservation. The findings of this study demonstrate, among other things, that considerable scientific advances of a practical kind may be made in the field of remote sensing. These can potentially be linked to managers' needs for tools to inventory and delineate wetlands and to monitor wetland development and conservation status. The Digital Atlas made it possible to discover another aspect of the consequent diversity of North African wetlands, through a new technique of presenting results in the context of web mapping.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"74 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139948483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Competition Overshadows Associational Defenses from Nuphar advena for Zizania aquatica in a Restored Tidal Freshwater Marsh","authors":"Thomas Huebler, Keryn Gedan","doi":"10.1007/s13157-024-01788-6","DOIUrl":"https://doi.org/10.1007/s13157-024-01788-6","url":null,"abstract":"<p>Herbivory can hinder restoration success by limiting the recovery of plant biodiversity. This study investigates whether plant-plant interactions, such as associational defenses, can increase the survival of a palatable species in restoration contexts where herbivory inhibits recovery. Specifically, we investigate the potential of associational defenses by the perennial <i>Nuphar advena</i> (yellow pond-lily) to influence the growth and survival of <i>Zizania aquatica</i> (annual wild rice) in a freshwater tidal marsh restoration where goose herbivory has limited <i>Z. aquatica</i> recovery. Wild rice was planted within exclosures and unfenced control plots located within patches of <i>N. advena</i> or adjacent mudflat. In an additional treatment to test the negative effects of light competition, we planted <i>Z. aquatica</i> in exclosures located within experimental clearings in <i>N. advena</i> patches. We also surveyed grazing pressure on naturally-occurring <i>Z. aquatica</i> within transects that spanned <i>N. advena</i> patches and adjacent mudflat. Based on observational and experimental results, <i>N. advena</i> provided clear protection from grazing for <i>Z. aquatica</i>. However, there was a cost to <i>Z. aquatica</i> growing in <i>N. advena</i> patches– plantings within <i>N. advena</i> had greater mortality and significantly reduced biomass due to low light availability.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"23 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139903768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Purification Efficiency of Two Ecotypes of Wetland Plants on Subtropical Eutrophic Lakes in China","authors":"Yingmo Zhu, Kangning Shu, Ke Yang, Zhe Chen","doi":"10.1007/s13157-024-01787-7","DOIUrl":"https://doi.org/10.1007/s13157-024-01787-7","url":null,"abstract":"<p>The accelerated eutrophication rate of (sub)tropical lakes is a major environmental problem. Constructed wetlands are considered as an effective method to purify water bodies. However, the removal rate of nitrogen (N), phosphorus (P) and other nutrients by wetland vegetation is quite different, and the continuous observation of plants and water ecosystems is required. In this study, the growth curves of two subtropical wetland plants, <i>Phragmites australis</i> and <i>Zizania caduciflora</i>, and their absorption effects on N and P in constructed wetlands were studied. The results showed that the growth curves of the two wetland plants were similar, reaching the biomass peak in July to August, and the cumulative absorption of N and P by plants had the same trend with the change of biomass. The N and P concentration of plants reached the peak in March to April, with higher concentration in <i>Phragmites australis</i> than that of <i>Zizania caduciflora</i>. At the end of the growing season, i.e. around October 20, the accumulated absorption of N and P by plants reached the maximum, which was the optimal time for harvest of subtropical wetland plants. Thereafter, the residues of plant litter entered the water, causing the recovery of N and P concentration in the water body, therefore affected the purification function of wetland. There is a strong correlation between the water purification efficiency and plant growth. With the increase of biomass, N and P accumulation in <i>Phragmites australis</i> and <i>Zizania caduciflora</i>, the N, P content and chemical oxygen demand (COD) in the water of wetland showed a significant decreasing trend. The removal rates of N, P, COD and suspended substance (SS) in the constructed wetlands with <i>Phragmites australis</i> and <i>Zizania caduciflora</i> as the main plants were 95%, 96%, 82% and 86%, respectively. In general, the purification capacity of <i>Phragmites australis</i> is slightly higher than that of <i>Zizania caduciflora</i> and precipitation had positive effects on the pollutants concentration of wetland water. The results provide scientific basis for plant selection and management of subtropical constructed wetlands.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"258 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139903767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Restored Oxbow Wetlands within an Agricultural Landscape: Using Physical and Biological Characteristics to Evaluate Impacts of Tile Drainage Input","authors":"Samuel S. Leberg, Dylan M. Osterhaus, Clay L. Pierce, Timothy W. Stewart","doi":"10.1007/s13157-024-01783-x","DOIUrl":"https://doi.org/10.1007/s13157-024-01783-x","url":null,"abstract":"<p>Oxbow wetlands have been restored in the Midwestern United States to provide habitat for wetland-dependent species and to sequester contaminants originating from agricultural activities. Intensive agriculture may have adverse impacts on oxbow functions, especially if wetlands receive water inputs from subsurface drainage systems (e.g., tile drainage). To explore the influence of tile drainage on oxbow wetland communities, we quantified relationships between physical and biotic variables in 12 Iowa, USA oxbows over a two-year period (June to August 2019–2020). Six oxbows received direct water inputs from tile drainage (multipurpose oxbows), whereas remaining sites did not (non-tiled oxbows). In each oxbow, we measured physical variables and documented taxonomic composition, diversity, and abundance of macrophytes, macroinvertebrates, and fishes. Although water temperature was lower in multipurpose oxbows, values for other physical variables (e.g., turbidity, conductivity, and total dissolved solids) were similar across sites. No significant difference was detected for any biotic variable between oxbow types. In total, we observed 44 invertebrate taxa in both oxbow types with an average richness of 18.6 in non-tiled oxbows and 17.5 in tile-fed oxbows. We sampled 35 fish species, with an average richness across sampling dates of 8.2 in non-tiled oxbows and 11.4 in multipurpose oxbows. A total of 2682 Topeka shiners were found in both non-tiled and multipurpose oxbows. Non-metric multidimensional scaling revealed that potential physical determinants of macrophyte, invertebrate, and fish abundance were unrelated to tile drainage. Tile drainage had negligible impacts on coarse physical characteristics, taxa richness (fish and macroinvertebrates) and abundance (fish and macroinvertebrates).</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"22 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139762268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Factors Influencing Plant Diversity in Urban Wetlands Based on a Structural Equation Model","authors":"Yue Wang, Guofu Yang, Biao Wei, Youli Zhang, Yijun Lu","doi":"10.1007/s13157-024-01784-w","DOIUrl":"https://doi.org/10.1007/s13157-024-01784-w","url":null,"abstract":"<p>Urban wetlands constitute a pivotal element within urban ecosystems. The implementation of ecologically sound wetland design methods can foster their biodiversity while augmenting overall ecosystem services. This study investigated three urban wetlands—Xixi, Tongjian Lake, and Qingshan Lake wetlands as the core, fringe, and suburban areas, respectively, of Hangzhou in Zhejiang Province, China. The plant species composition of these wetlands was quantified and 33 ecological design methods were accessed across the values of water quality protection, shoreline maintenance, ecological facilities, and plant diversity. Employing structural equation modeling, design methods significantly influencing plant diversity were identified. Key findings reveal: (1) variances in plant species and design methods occurred across wetlands, with the Xixi Wetland in the urban core displaying higher biodiversity; (2) four design methods—ecological conservation measures, rain gardens, complex plant community structure, and increased hydrophytic species populations—significantly impacted wetland plant diversity; (3) divergent pathways of design methods can be used to improve plant diversity in different urban wetlands; and (4) rational ecological design enhances plant diversity but may have time-limited effects, necessitating ongoing management to be effective. It is crucial that land managers ensure urban wetland protection occurs amidst urbanization using carefully tailored land use planning and management while considering wetland functions and characteristics. This research underscores the importance of employing ecological design methods strategically for sustaining and maximizing the benefits of ecosystem services that urban wetlands can provide.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"51 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139762340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shrub Age and Water Dynamics Influence Primary Production, Carbon, and Nitrogen Stocks in a Coastal Environment","authors":"Lauren K. Wood, Donald R. Young, Julie C. Zinnert","doi":"10.1007/s13157-024-01786-8","DOIUrl":"https://doi.org/10.1007/s13157-024-01786-8","url":null,"abstract":"<p>Drivers of shrub primary production and associated landscape impacts of encroachment are well known in drylands but have not been thoroughly studied in mesic and coastal habitats. The native, nitrogen-fixing shrub, <i>Morella cerifera,</i> has expanded into coastal grassland along the US Atlantic coast due to warming temperatures, but impacts on ecosystem function are not well known. Annual net primary production (ANPP) of <i>Morella cerifera</i> and key environmental drivers were measured long-term (1990 – 2007) across a chronosequence of shrub age on a mid-Atlantic barrier island. Soil and groundwater nutrients were compared with un-encroached grassland soil to evaluate impacts of vegetation on nutrient dynamics. Shrub ANPP declined with age at the same rate among all thickets, but there was variability from year to year. When climate variables were included in models, shrub age, precipitation, and freshwater table depth were consistent predictors of ANPP. Water table depth decreased over time, reducing ANPP. This may be due to rising sea-level, as well as to feedbacks with shrub age and evapotranspiration. Soil N and C increased with shrub age and were higher than adjacent grassland sites; however, there was a significant loss of N and C to groundwater. Our results demonstrate that drivers influencing the encroachment of shrubs in this coastal system (i.e., warming temperature) are not as important in predicting shrub primary production. Rather, interactions between shrub age and hydrological properties impact ANPP, contributing to coastal carbon storage.</p>","PeriodicalId":23640,"journal":{"name":"Wetlands","volume":"208 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139762479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}