Wetlands Ecology and Management最新文献

{"title":"Using UAV multispectral photography to discriminate plant species in a seep wetland of the Fynbos Biome","authors":"Kevin Musungu, Timothy Dube, Julian Smit, Moreblessings Shoko","doi":"10.1007/s11273-023-09971-y","DOIUrl":"https://doi.org/10.1007/s11273-023-09971-y","url":null,"abstract":"<p>Wetlands harbour a wide range of vital ecosystems. Hence, mapping wetlands is essential to conserving the ecosystems that depend on them. However, the physical nature of wetlands makes fieldwork difficult and potentially erroneous. This study used multispectral UAV aerial photography to map ten wetland plant species in the Fynbos Biome in the Steenbras Nature Reserve. We developed a methodology that used K-Nearest Neighbour (KNN), Support Vector Machine (SVM), and Random Forest (RF) machine learning algorithms to classify ten wetland plant species using the preselected bands and spectral indices. The study identified Normalized green red difference index (NGRDI), Red Green (RG) index, Green, Log Red Edge (LogRE), Normalized Difference Red-Edge (NDRE), Chlorophyll Index Red-Edge (CIRE), Green Ratio Vegetation Index (GRVI), Normalized Difference Water Index (NDWI), Green Normalized Difference Vegetation Index <b>(</b>GNDVI) and Red as pertinent bands and indices for classifying wetland plant species in the Proteaceae, Iridaceae, Restionaceae, Ericaceae, Asteraceae and Cyperaceae families. The classification had an overall accuracy of 87.4% and kappa accuracy of 0.85. Thus, the findings are pertinent to understanding the spectral characteristics of these endemic species. The study demonstrates the potential for UAV-based remote sensing of these endemic species.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"26 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139374068","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":"Identifying conditions where reed canarygrass (Phalaris arundinacea) functions as a driver of forest loss in the Upper Mississippi River floodplain under different hydrological scenarios","authors":"Nathan R. De Jager, Jason J. Rohweder, Molly Van Appledorn, Enrika Hlavacek, Andy Meier","doi":"10.1007/s11273-023-09969-6","DOIUrl":"https://doi.org/10.1007/s11273-023-09969-6","url":null,"abstract":"<p>Most of the world’s river-floodplain ecosystems are simultaneously undergoing modifications to their hydrological regimes and experiencing species invasions, making it unclear whether invasive species are the main drivers of ecosystem change or simply responding to changes in the hydrological regime.</p><p>We simulated patterns of forest recruitment and succession in a 2500-ha portion of the Upper Mississippi River floodplain with and without removal of invasive <i>Phalaris arundinacea</i> and under two different future 100-year hydrological scenarios: a future maintaining the average flooding conditions of the past 40 years (random) and a future that projects an observed upward 40-year trend in flooding conditions forward (trending). By comparing scenarios that included <i>Phalaris</i> removal and ones that did not, we were able to identify the conditions where <i>Phalaris</i> was the main driver of forest loss vs. the conditions where hydrology was the main driver of forest loss. Areas where <i>Phalaris</i> was the main driver of forest loss had mean annual flood inundation durations that were similar to areas that did not lose forest cover (60–90 growing season days), while areas where flooding was the main driver of forest loss had longer mean inundation durations (102–124 growing season days). In comparison to the random hydrology scenario, the trending scenario produced a decrease in the area over which <i>Phalaris</i> was identified as the main driver of forest loss and an increase in the area over which flood inundation was identified as the main driver of forest loss. Thus, if the observed trends in flooding continue, our model projects an increase in the area over which eradicating <i>Phalaris</i> is unlikely to result in the maintenance of forest cover. We used the Resist-Accept-Direct (RAD) framework to discuss potential management options to resist changes and maintain forest cover where <i>Phalaris</i> is likely to be the main driver of forest loss and to accept or direct changes in areas where forest loss is likely driven by hydrological change.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139078926","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":"The effect of habitat structural complexity on gastropods in an arid mangrove wetland","authors":"Haniyeh Ebadzadeh, Mehdi Ghodrati Shojaei, Jafar Seyfabadi","doi":"10.1007/s11273-023-09966-9","DOIUrl":"https://doi.org/10.1007/s11273-023-09966-9","url":null,"abstract":"<p>Structural complexity of mangrove forests is thought to provide critical habitats for a variety of invertebrates. We studied the influence of habitat structure and sampling time on the gastropod diversity in Khuran mangrove ecosystem in the Persian Gulf. Sampling was conducted in two successive years (February and June 2018, February and June 2019) at two mangrove habitats <i>i.e</i>., pneumatophore zone and mudflats. The gastropod assemblages were characterized by the dominance of specific taxa and low species richness. In total, 18 taxa were identified, including 14 species occurring in the mangrove forest and 16 species in the mudflats. Assimineidae dominated the assemblages in both mangrove habitats. Four species (<i>Mitrella blanda, Mitrella cartwrighti, Pellamora densilabrum, Pseudominolia</i> sp.) were found only in mudflat habitats, while two species (<i>Bakawan rotundata, Peronia verruculata</i>) were found only in <i>pneumatophore zones</i>. The gastropod assemblage structure differed significantly between habitats and sampling dates. Of the environmental variables measured, distance-based linear models revealed that total organic carbon (TOC), and total nitrogen (TN) best explained the variation in gastropod assemblage structure. We suggest that conservation efforts should focus not only on preserving mangrove forests, but also upon protecting their adjacent bare mudflats as they provide habitat for various mangrove fauna.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"35 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138816782","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":"Economic impact of Rugulopteryx okamurae (Dictyotales, Ochrophyta) along the Andalusian coastline: the case of Tarifa, Spain","authors":"Sandra L. Mogollón, Mariana I. Zilio, Eva M. Buitrago, M. Ángeles Caraballo, Rocío Yñiguez","doi":"10.1007/s11273-023-09951-2","DOIUrl":"https://doi.org/10.1007/s11273-023-09951-2","url":null,"abstract":"<p>Invasive alien species are the second cause of biodiversity loss worldwide and imply huge economic costs related to their impact on ecosystems, production systems, and human health. Quantifying these losses is a complex task, but it becomes essential to evaluate the problem and support measures to prevent and control biological invasions. In the last 6 years, <i>Rugulopteryx okamurae</i> has invaded a large part of the rocky bottoms of the coasts of the Strait of Gibraltar. Moreover, it has meant significant losses for the economic activities that take place along the Andalusian coast. Using a mixed-method approach, this work estimated the costs associated with the presence of <i>Rugulopteryx okamurae</i> in the municipality of Tarifa, Spain, in a minimum annual loss of more than three million euros, concentrated mainly in the fishing sector and public administration. These results buttress the relevance of prevention, early detection, and prompt action measures to soften the economic impact of future biological invasion processes in the marine-coastal environment.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"124 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138681381","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":"Stormwater ponds serve as variable quality habitat for diverse taxa","authors":"Levi J. McKercher, Matthew E. Kimball, Amy E. Scaroni, Sarah A. White, William H. J. Strosnider","doi":"10.1007/s11273-023-09964-x","DOIUrl":"https://doi.org/10.1007/s11273-023-09964-x","url":null,"abstract":"<p>Stormwater ponds are primarily designed for flood control and water quality protection, but they often serve as habitats of differing quality for a variety of organisms. Floral and faunal distributions within stormwater ponds are dependent on the environmental and biological characteristics of each pond and surrounding ecosystem which are inherently linked to management. Increasing stormwater pond size and habitat complexity can promote more diverse floral and faunal communities. However, aquatic pollution and the presence of invasive species can reduce biodiversity. Robust submerged and emergent macrophyte assemblages are critical in maintaining rich and abundant populations of other taxa. Phytoplankton are key primary producers in stormwater ponds; however, some groups are toxic. Zooplankton distribution in stormwater ponds is primarily determined by aquatic connectivity, trophic status, salinity, and predator presence. Fish may be naturally or unnaturally introduced to stormwater ponds, and impaired water quality can threaten their health. Various bird species use stormwater ponds as temporary or permanent habitat, and emergent macrophytes can provide roosting habitat. In some cases, birds may become nuisances and impair stormwater pond water quality. Semi-aquatic mammals may inhabit stormwater ponds with the potential to physically alter these habitats through shelter construction. For some taxa, stormwater ponds represent ecological traps which reduce organismal fitness. This review critically examines the many factors that determine floral and faunal communities within stormwater ponds, with insight into best management practices to promote healthy pond ecosystems, advance stakeholder engagement and awareness, and avoid the creation of ecological traps in an increasingly urbanizing world.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"79 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138681512","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":"Surviving amid the Saharan sands: first breeding record and nesting ecology of the Mallard in the Algerian Sahara","authors":"Abdelwahab Chedad, Abdelhakim Bouzid, Farrah Samraoui, Boudjéma Samraoui","doi":"10.1007/s11273-023-09970-z","DOIUrl":"https://doi.org/10.1007/s11273-023-09970-z","url":null,"abstract":"<p>We report the first breeding occurrence of Mallard (<i>Anas platyrhynchos</i>) in the northern Algerian Sahara, focusing on nesting ecology in the Kef Doukhane wetland. We analyzed the influence of different environmental factors on nesting outcomes and breeding success. Our results indicate that the timing of egg laying is a critical factor influencing both breeding outcomes and the number of fledged chicks. Specifically, our results indicate that nest outcomes become less favorable as the season progresses, with later clutches having a lower probability of success. In addition, the number of successfully fledged chicks is significantly lower for later clutches. Interspecific parasitism was documented in five mixed clutches, involving Ferruginous Duck (<i>Aythya nyroca</i>) in four cases and Moorhen (<i>Gallinula chloropus</i>) in one case. Our study highlights the challenges that the hyperarid environment of the Sahara poses for breeding waterbirds. It also highlights the selection pressures exerted by both biotic factors and environmental factors, with temperature, solar radiation, and the presence of protective vegetation playing important roles. Comparative analyzes show that the timing of egg laying has similar effects in other regions, as observed at Lake Tonga further north, where Mallard breeding performance declines as the season progresses. This research not only contributes to our understanding of the nesting ecology of mallards in this unique Saharan wetland but also underscores the urgency of conservation action, especially in the face of ongoing environmental change. It also improves our understanding of waterbird breeding dynamics in the region and highlights the challenges faced by these bird populations in a demanding, arid environment.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"15 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138630597","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":"Could the compound effects of drought and fire have caused an increase of COVID-19 cases in the Pantanal wetland?","authors":"Camila Lorenz, Renata Libonati, Liz Barreto Coelho Belém, Aline Oliveira, Geraldo Wilson Fernandes, Christian Niel Berlinck, Fabio de Oliveira Roque","doi":"10.1007/s11273-023-09965-w","DOIUrl":"https://doi.org/10.1007/s11273-023-09965-w","url":null,"abstract":"<p>In 2020, wildfires in the Pantanal, the world’s largest continuous tropical wetland, destroyed almost one-third of this biome. In addition to this catastrophic situation, the world faced an even more serious threat due to the COVID-19 pandemic. Here we discussed the impact of the 2020 fires and the COVID-19 pandemic in the public health, mainly in populations living in a situation of vulnerability such as indigenous and riverine peoples. It is necessary to develop region-specific policies to ensure the effectiveness of disaster risk management.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"5 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138546738","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":"An assessment of long-term and large-scale wetlands change dynamics in the Limpopo transboundary river basin using cloud-based Earth observation data","authors":"Siyamthanda Gxokwe, Timothy Dube, Dominic Mazvimavi","doi":"10.1007/s11273-023-09963-y","DOIUrl":"https://doi.org/10.1007/s11273-023-09963-y","url":null,"abstract":"<p>Significant progress has been made in monitoring and assessing the effects of land use and land cover (LULC) changes on wetland extent. However, our understanding of wetland within the transboundary basins has been limited by the scarcity of available data on their dynamic changes over time. This study aimed to address this gap by analyzing the long-term and large-scale spatio-temporal extent of wetland in the Limpopo transboundary river basin (LTRB) over a 20-year period (2000–2020). To achieve this, we utilized the Google Earth Engine (GEE) cloud-computing platform and various remotely sensed data. The study had two primary objectives; (1) to examine LULC changes over time using machine learning algorithms applied to multisource remotely sensed data in GEE, and (2) to assess the relationship between LULC changes and the extent of wetlands in the basin. A total of nine land cover classes were identified, including shrublands, croplands, bare-surface, wetlands, sparse vegetation, tree cover, built-up areas, and grasslands. Shrublands covered 76–82% of the LTRB. On the other hand, wetlands and sparse vegetation were the least dominant, with proportions ranging from 0.3 to 2%. The overall accuracy of the classification results was within acceptable ranges, ranging from 77 to 78%. The study further revealed a continuing decline in wetlands extent and sparse vegetation, with average rates of 19% and 44%, respectively. Conversely, shrublands, croplands, and tree cover showed an increase, with average rates of 0.4% and 12.4% respectively. A significant finding was the replacement of a substantial portion (40%) of wetland areas with built-up areas, indicating that urban expansion is a major driver of wetland shrinkage in the study area. These results provide valuable insights into the declining extent of wetlands in the LTRB. Such findings are crucial for environmental management efforts, as they provide information on which wetlands should be prioritized when implementing strategies to prevent the negative impacts of LULC changes on wetlands in the area. Therefore, contributing towards achieving sustainable development goals relating to freshwater ecosystems protection and management.</p>","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"4 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138542669","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":"Is it because of climate change? Social-ecological system analysis of wetland protected area in Vietnamese Mekong Delta","authors":"Loan Thi Phan, Sue-Ching Jou, Chyi-Rong Chiou, Ci-Jian Yang","doi":"10.1007/s11273-023-09960-1","DOIUrl":"https://doi.org/10.1007/s11273-023-09960-1","url":null,"abstract":"","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":" 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135242029","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":"Decomposition of reed leaf and non-leaf litter in the air and on the ground in the Yellow River Delta, China","authors":"Baoxian Tao, Jingdong Wang, Yuqing Jiang, Qinghai Chen, Baohua Zhang, Haiyan Yuan","doi":"10.1007/s11273-023-09962-z","DOIUrl":"https://doi.org/10.1007/s11273-023-09962-z","url":null,"abstract":"","PeriodicalId":49363,"journal":{"name":"Wetlands Ecology and Management","volume":"20 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135589653","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}