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Relevant bibliographies by topics / Wetland biodiversity conservation

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Academic literature on the topic 'Wetland biodiversity conservation'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 March 2023

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Journal articles on the topic "Wetland biodiversity conservation"

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Maltchik, L., AS Rolon, and C. Stenert. "Aquatic macrophyte and macroinvertebrate diversity and conservation in wetlands of the Sinos River basin." Brazilian Journal of Biology 70, no. 4 suppl (December 2010): 1179–84. http://dx.doi.org/10.1590/s1519-69842010000600007.

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Wetlands are important sites for biological conservation because they support rich biodiversity and present high productivity. Species-area relationship is an important tool in conservation planning and it has been extensively used for wetland management. This study had as aims: (1) to analyse macrophyte and macroinvertebrate diversity in the fragmented wetlands of the Sinos River basin; and (2) to investigate whether wetland areas could work as a tool for selecting the important habitats for biodiversity conservation. Throughout the study, 56 species of macrophytes and 57taxa of macroinvertebrates were identified. Macrophyte richness was related to the wetland area, but macroinvertebrate richness, however, was not related to the wetland area. The macrophyte and macroinvertebrate composition were not related to the wetland area. Species composition varied between the regions of the basin and the difference in the species composition occurred mainly by the distribution of macroinvertebrates. With regard to the biodiversity conservation of the Sinos River basin, the wetland area must not be a priority criterion for choosing the important wetlands for conservation. The environmental policies for biodiversity conservation must include management actions focused also on the protection of small wetlands. Moreover, other criteria should be analysed in further research such as habitat diversity, hydroperiod, geographic distribution and connectivity.

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Arya, Ashish Kumar, Kamal Kant Joshi, Archana Bachheti, and Deepti. "A review on distribution and importance of wetlands in the perspective of India." Journal of Applied and Natural Science 12, no. 4 (December 15, 2020): 710–20. http://dx.doi.org/10.31018/jans.v12i4.2412.

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Biodiversity is not equally distributed across the world. It depends on the type of various habitats and food availability. In these habitats, wetlands play an import role to increase the biodiversity of the particular area. Many studies have focused on various habitats to conserve biodiversity. However, the wetland studies are very few due to the lack of information on their distribution and importance. The present review focusses on the wetland status and their importance in India. India has vibrant and diverse wetland ecosystems that support immense biodiversity. The wetlands are unique habitats which provide ecological, social and economic values. However, rapid urbanization, industrialization and uncontrolled agricultural practices have pressurized to shrink the wetlands in India. The present paper highlights the wetland habitats in India with their geographical location, distribution, avian species diversity and their significance. The paper also discusses the growing threats like climate change, land-use change and agriculture/ municipal waste to the wetlands and the conservation efforts by Indian government policies, i.e. National Wetland Conservation Programme, National Environmental Policy, and National Plan for conservation of the aquatic ecosystem. In addition, on the basis of previous studies on wetlands, it is suggested that the role of stakeholders is very much responsible for wetland conservation.

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Alam, Mohammad Zahangeer. "Status of Biodiversity at Wetland Ecosystem of Mohangonj Upazila in Netrakona District." Advances in Ecology 2014 (September 2, 2014): 1–8. http://dx.doi.org/10.1155/2014/642450.

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Species in wetlands provide ecosystem services, and protect the sustainable environment for human beings. The wetland biodiversity has been impacted at Mohangonj in Bangladesh due to the development of major environmental threats. The present research is undertaken to report the species status, wetland properties, and major environmental pressures in each wetland ecosystem. Among the recorded species, the total percentage of visible, threatened, endangered, and extinct species was 69.23, 18.62, 10, and 1.92% in these wetland ecosystems, respectively. The highest number of threatened species was found in the wetland of Aizda (29%); the lowest was in Khalaura (8%). The maximum number of endangered species was noted in the wetland of Sonarthal (16%), and the minimum was in Chadra (4%) wetland. Four percent species were in the extinct category at some of the wetland ecosystems. Wetland biodiversity protects wetland ecosystem services and the sustainable environment for species conservation. Continuous monitoring of wetland biodiversity might be helpful for the conservation of species in the wetland ecosystem.

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Bao, Wenhui, Xingyu Zeng, Chunyu Luo, Hongqiang Zhang, Yi Qu, and Nan Xu. "The Relationship between Hydrological Connectivity Changes Inside and Outside Biodiversity Hotspots and Its Implication for Sustainable Environmental Management." Sustainability 14, no. 11 (May 29, 2022): 6654. http://dx.doi.org/10.3390/su14116654.

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The conservation management of biodiversity hotspots is of vital significance for biological conservation. For wetlands, which are a special type of ecosystems that are based on water as their main medium, a decline in external hydrological connectivity often leads to wetland degradation inside biodiversity hotspots. In this context, the relationship between hydrological connectivity changes inside and outside hotspots is worth exploring. Based on the wetland biodiversity hotspots identified using systematic conservation planning, this study selected eight representative biodiversity hotspots with concentrated area. Integral index of connectivity, probability of connectivity (representing structural connectivity), and morphological spatial pattern analysis (representing functional connectivity) were used to analyze the hydrological connectivity changes inside various hotspots for 1995–2015. By taking the catchment area involved as the minimum basin perimeter, this study calculated the external hydrological connectivity changes of various hotspots during this period and analyzed the relationship between hydrological connectivity changes inside and outside of hotspots. The internal and external hydrological connectivity of wetland biodiversity hotspots were found to be significantly correlated. Moreover, the internal hydrological connectivity of hotspots not only declined with declining external structural connectivity, but also changed with the proportion of core wetlands, the proportion of edge wetlands, and the proportion of branch corridors. In addition, hotspots located at intersections of high-grade rivers were more significantly affected by climate change than by human activities and their hydrological connectivity increased with increasing rainfall. The internal hydrological connectivity of hotspots near low-grade rivers presented a declining trend, mainly because of human activities. This study clarified the relationship between internal and external hydrological connectivity of wetland biodiversity hotspots. Targeted internal and external control strategies are proposed, with the aim to offer references for the conservation of wetland biodiversity.

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Stenert, Cristina, and Leonardo Maltchik. "Influence of area, altitude and hydroperiod on macroinvertebrate communities in southern Brazil wetlands." Marine and Freshwater Research 58, no. 11 (2007): 993. http://dx.doi.org/10.1071/mf07073.

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Wetlands are important ecosystems in southern Brazil because they show high productivity and biological diversity. However, conservative data indicate that ~90% of the wetlands have disappeared as a result of agricultural expansion. In this sense, the understanding of species composition and richness patterns in fragmented and natural wetlands is a priority for biodiversity conservation strategies. The main goal of the present study was to determine how much variation in macroinvertebrate richness and composition is explained by wetland area, hydroperiod and altitude. This survey was carried out in an extensive area of the Neotropical region (~280000 km2 – southern Brazil) with a large number of wetland systems (72) and covering a wide gradient of altitude and wetland surface area. The macroinvertebrate richness was higher in permanent wetlands than intermittent ones, and intermittent wetlands supported a macroinvertebrate composition that clearly differed from those of permanent wetlands. Macroinvertebrate richness was positively affected by wetland area; however, this relationship was significant only in permanent wetlands. There is a need to promote conservation of all wetland systems in southern Brazil, regardless of their hydroperiod and area. These arguments are essential to develop conservation and management programs of wetlands in this region.

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Adhikari, Jagan Nath, Janak Raj Khatiwada, Dipendra Adhikari, Suman Sapkota, Bishnu Prasad Bhattarai, Deepak Rijal, and Lila Nath Sharma. "Comparison of bird diversity in protected and non-protected wetlands of western lowland of Nepal." Journal of Threatened Taxa 14, no. 1 (January 26, 2022): 20371–86. http://dx.doi.org/10.11609/jott.7452.14.1.20371-20386.

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Protected areas are considered important for biodiversity conservation, however, studies have shown that habitats outside protected areas can also support high diversity and are important for biodiversity conservation. In this context, we compared the bird diversity between protected (Rani Taal in Shuklaphanta National Park) and non-protected (Sati Karnali Taal) wetlands in western Nepal. Bird surveys were conducted from February to August 2019, using open width point count method in 100 m intervals along transects. A total of 122 species belonging to 18 orders and 44 families were recorded from the protected wetland, and 107 species belonging to 16 orders and 41 families from the non-protected wetland area. Insectivores had high abundance in both wetlands (43% and 47% in protected and non-protected wetlands, respectively). Forest-dependent birds were more abundant in protected wetland compared to non-protected wetland. Our study showed that both protected and non-protected wetlands along with agricultural landscapes, support a richness of birds. Hence priority should be given to both wetlands for the conservation of birds.

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CIMON-MORIN, JÉRÔME, MARCEL DARVEAU, and MONIQUE POULIN. "Site complementarity between biodiversity and ecosystem services in conservation planning of sparsely-populated regions." Environmental Conservation 43, no. 1 (June 2, 2015): 56–68. http://dx.doi.org/10.1017/s0376892915000132.

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SUMMARYThe consequences of considering ecosystem services (ES) in conservation assessment are still widely debated. The degree of success depends on the extent to which biodiversity and ES can be secured under joint conservation actions. Unlike biodiversity, ES conservation is inseparably linked to human beneficiaries. Reconciling biodiversity with ES and conservation can be particularly challenging in sparsely populated areas. This study, in a sparsely-populated region of eastern Canada, focused on freshwater wetland biodiversity and ten ES provided by wetlands. Within a given maximal total area, the results showed that planning for biodiversity underrepresented local flow ES supply by 57% and demand by 61% in conservation networks. Planning for ES alone underrepresented wetland biodiversity surrogates by an average of 34%. Considering both biodiversity and ES simultaneously, all of the biodiversity and ES targets were achieved with only a 6% mean increase in area. Achieving all conservation targets starting from a network that was primarily built for either ES or biodiversity features alone was two to five times less efficient than considering both ES and biodiversity simultaneously in conservation assessment. A better framework is required to translate these spatial synergies into effective joint conservation actions.

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Gibbs, James P. "Wetland Loss and Biodiversity Conservation." Conservation Biology 14, no. 1 (February 2000): 314–17. http://dx.doi.org/10.1046/j.1523-1739.2000.98608.x.

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Ge, Xiu Li, Ren Qing Wang, and Jian Liu. "The Comparison of the Community Features between the Constructed Wetland and the Natural Wetland in Nansi Lake." Advanced Materials Research 518-523 (May 2012): 5238–43. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.5238.

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Thirteen typical plant communities were investigated in Xinxuehe constructed wetland restored for five years and in Gaolou natural wetland restored naturally for eight years. Both wetlands are located in Nansi Lake area. The species composition, coverage, aboveground biomass and biodiversity indices were compared between the communities from the constructed wetland and the natural wetland. The results showed that the constructed wetland and the natural wetland had similar emergent species and typical species of their own, however neither coverage nor aboveground biomass showed significant differences. In the meanwhile, we found that the biodiversity of natural wetland is relatively higher than the constructed wetland. For the wetland restoration and the water quality quick improving, it is suitable to use artificial ways to promote the restoration of wetlands which converted from the farmland in Nansi Lake area; in the other hand, the natural wetland restoration is more valuable for the biodiversity conservation in the long run.

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Patil, S., and K. Choudaj. "The Importance of Artificial Wetlands in the Conservation of Wetland Birds and the Impact of Land Use Attributes Around the Wetlands: a Study from the Ajara Conservation Reserve, Western Ghats, India." zoodiversity 57, no. 1 (2023): 41–50. http://dx.doi.org/10.15407/zoo2023.01.041.

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Artificial wetlands are built to meet the rising human population's water needs, with little attention paid to their ecological significance. The current study was carried out to assess the importance of artificial wetlands in biodiversity conservation. Habitat quality of wetlands was assessed using the birds as an ecological indicator. Bird surveys were carried out at the five artificial wetlands located in the Ajara conservation reserve, northern Western Ghats, India. Bird surveys were conducted for five years (2011–2015). During the study, 165 bird species were recorded, including 34 wetland birds and 131 wetland-associated birds. Wetlands in forested areas have a higher richness of wetland birds. Wetlands surrounded by exotic plantations, agriculture, and human settlements exhibit lower wetland bird richness than wetlands in forested areas. Land use attributes around the wetlands affect wetland bird diversity. The current study gives a glimpse that these artificial wetlands could serve as a possible habitat for wetland birds.

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Dissertations / Theses on the topic "Wetland biodiversity conservation"

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Chu, Wing-hing. "Conservation of terrestrial biodiversity in Hong Kong /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19737439.

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Fitzgerald, Megan. "The relationship between biodiversity and ecosystem function in a coastal wetland." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1572435.

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Despite reductions in species diversity, few studies in wetlands investigate the relationship between biodiversity and ecosystem function (BEF). My research explores the BEF relationship in a recently restored salt marsh in Long Beach, California. I hypothesized that: (1) increasing plant diversity would result in higher primary productivity and decreased recruitment of native salt marsh plants, (2) observed variation in responses would be correlated with species-specific variation in individual demographic parameters, and (3) variation in demographic parameters and resulting ecosystem processes would be correlated with functional traits. I found that while survival over one year was correlated with elevation, overall percent cover and recruit species richness were positively affected by diversity. Performance patterns reveal variation by species in photosynthetic rate, leaf mass per area and chlorophyll a/b ratios. After one year, I found that the overall diversity patterns were driven by selection effect compared to complementarity.

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Reisner, Gunilla. "Conflicting Environmental Management Tools : Grazing of Semi-natural Grasslands vs. Wetland Conservation." Thesis, Södertörns högskola, Institutionen för naturvetenskap, miljö och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-22674.

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The study explores the possibility of conflicts between conservation of wetlands and semi-natural grasslands in the county of Stockholm. Both habitats are important to protect from a biodiversity perspective. The species rich semi-natural grasslands have been created by agricultural practices like grazing and mowing. At the same time, wetlands have diminished due to earlier drainage in order to increase the area of arable land. Both habitats are incorporated in the Swedish Environmental Objectives and are parts of the EU’s Agri-Environmental Schemes (AES), where farmers get financial support to maintain or restore valuable habitats. Wetland conservation/restoration often requires raised water tables, but also maintenance with cattle grazing in certain areas. On the other hand, raised water tables can act as hinder for grazing animals and lead to conflict situations. Using a mixed method approach, this study scrutinized if the use of different management tools can result in conflicts between actors and objectives. The study is based on a literature review, interviews and the use of Geographical Information Systems (GIS). Institutionalism and the Institutional Analysis and Development framework are used to analyze and evaluate the situation in the county of Stockholm. The quantitative results reveal that 12,8 % of all semi-natural grasslands of high biological value intersects with wetlands. However, these areas are maintained with environmental support to a larger extent than semi-natural grasslands outside wetlands. This indicates there is no conflict between wetland and semi-natural grassland conservation, a perception shared by authorities. From farmers’ perspective the situation is described differently, rule compliance for environmental support is hard to obtain specifically in wet areas. Increased dialogue between authorities and farmers rather than harsh inspections would be preferable as the county of Stockholm needs more farmers and grazing cattle to maintain biologically important habitats. Grazing in wetlands is needed from a biodiversity perspective but can at the same time disturb the wetlands functioning of nutrient reduction. There is a risk of authorities prioritizing water quality in front of biodiversity in conflicting situations. Water, as a common-pool recourse, is surrounded by stricter regulation and also easier to monitor.

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Ferchichi, Ben Jamaa Hafawa. "Fonctionnement, biodiversité, structure et dynamique des communautés végétales des zones humides temporaires de la région des Mogods, Tunisie septentrionale." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20213.

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Dans le contexte du déclin général des zones humides temporaires méditerranéennes et du manque de connaissances à leur sujet en Tunisie, l'étude pluridisciplinaire et multiscalaire de leur structure et de leur fonctionnement a été entreprise dans les Mogods (Tunisie septentrionale). (1) A l'échelle régionale, l'inventaire et la typologie de ces milieux permettent d'en définir les enjeux conservatoires. Ces résultats montrent, d'une part l'intérêt biogéographique majeur de la zone d'étude, qui abrite des milieux rares et exceptionnels (zones tourbeuses, lacs semi-permanents, Garâa Sejenane), et d'autre part sa diversité spécifique et biocénotique reflétant l'hétérogénéité spatiale des conditions hydrologiques et pédologiques. (2) A l'échelle paysagère, l'étude des communautés végétales de trois mares temporaires permet de caractériser leur composition, leur structure et leur dynamique intra- et interannuelle, et de montrer l'influence majeure du pâturage. Les résultats obtenus mettent en évidence la nécessité d'une politique de gestion intégrant le maintien de l'hétérogénéité paysagère et le fonctionnement des zones humides en métapopulations. (3) A l'échelle locale, l'étude d'une espèce rare récemment découverte en Tunisie (Pilularia minuta) permet de caractériser pour la première fois la morphologie de ses organes reproducteurs, de mettre en évidence l'ancienneté de sa présence locale, de confirmer son caractère pionnier et d'évaluer sa dépendance vis-à-vis des conditions hydrologiques.Les résultats obtenus révèlent la diversité, la richesse et l'importance conservatoire des zones humides temporaires des Mogods, presque totalement méconnues et ignorées à l'heure actuelle. Ils mettent en évidence leur vulnérabilité face au développement socio-économique de la région, et soulignent l'urgence de développer une gestion conservatoire rationnelle, adaptée et durable, à différents niveaux d'organisation (région, commune, site)
In the context of the general decline of Mediterranean temporary wetlands and of the lack of knowledge about them in Tunisia, the pluridisciplinary and multi-scale study of their structure and functioning has been undertaken in the Mogods region (N. Tunisia). (1) At the regional scale, the survey and the typology of these habitats allow defining the conservatory stakes. These results show, first the major biogeographical interest of the study zone, which harbours rare and exceptional wetlands (peaty zones, semi-permanent lakes, Garâa Sejenane), and second its species and community diversity that reflects the spatial heterogeneity of hydrological conditions and soils. (2) At the landscape scale, the study of plant communities of three temporary pools allows characterising their composition, structure, and intra- and inter-year dynamics, and to show the major influence of grazing. The obtained results highlight the need for a management policy i ntegrating the conservation of the landscape heterogeneity and the pools' functioning in metapopulations. (3) At the local scale, the study of a rare species recently discovered in Tunisia (Pilularia minuta) allows characterising for the first time its reproduction organs, revealing its ancient local origin, confirming its pioneer character, and evaluating its dependence on hydrological conditions.The obtained results highlight the diversity, the richness and the conservatory importance of temporary wetlands of Mogods region, today almost completely unknown and ignored. They reveal their vulnerability to the socio-economical development of the region, and underline the urgency to develop a rational, adapted and sustainable conservatory management at different organisation levels (region, city, site)

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Mesencho, Sebsibe Endale. "An assessment of the potential of ecotourism and community based natural resource management as a rural development strategy with special reference to Isimangaliso Wetland Park." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1017036.

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This study aimed to analyse the potential and challenges for ecotourism development and how it can be applied as an integrated tool to provide economic incentives and better opportunities for community development, while improving natural resource management and conservation in Isimangaliso. The capital assets, the context of vulnerability of the local communities along with other significant attributes of the supply side were investigated in-depth. In addition, the potentials and challenges for ecotourism development in the selected Isimangaliso, Khula Village were studied. The impacts of ecotourism on local livelihood improvement, biodiversity resources and natural environment, and management and conservation of the area were also explored through sustainability concepts. However, the focus of the study was not only on ecotourism potentials and opportunities but was also on the development of sound guiding principles for planning and management of ecotourism development in Isimangaliso in a sustainable manner. It was found that community‟s willingness to participate in local development and natural resource management remains a questionable issue to be achieved. This is because local communities are strongly influenced by vertical network of the state administration. The study reveals that there is a strong interaction and interdependency between local livelihoods or poverty and the status and effectiveness of natural resource management in Isimangaliso. The study indicates that the area has plenty of potential natural and cultural resources. These resources signify three fundamental elements for ecotourism destination: quantity, quality, and fascination. The natural attractions consist of vital and sensitive biological and scenic values of the destination area.

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Maclean, Ilya. "An ecological and socio-economic analysis of biodiversity conservation of East African wetlands." Thesis, University of East Anglia, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427088.

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East African papyrus Cyperus papyrus swamps have undergone wide-scale drainage and are used intensively by resources harvesters. They also support a unique biota, notably six inadequately protected bird species. In this thesis, the results of a study examining the socio-economic benefits of and avian responses to wetland drainage and resource use are presented. The species richness of bird communities in heavily disturbed papyrus stands was higher than in nearby stands that were not disturbed, but contained fewer species and individuals of specialised species. However, even the six most specialised species were tolerant of low-intensity disturbance. Using a time-series of Landsat ETM images covering southern Uganda and adjoining countries wetlands were mapped and regional variations in drainage quantified. Using land coverage and occurrence data, the abundance and decline of bird species in c. 30,000 Eas1 African wetlands was predicted. The species studied were found to have declined substantially more than predicted by ecological theory because population densitie~ were higher in regions in which most drainage has occurred. Although averag( drainage was only c. 9% over 15 years, drainage in regions in which bird densit) was highest exceeded 75% over this period. The socio-economic value of crops grown in reclaimed swamps and goods derive( from swamps were determined by interviewing rural householders. Result: indicated that although drainage always served to reduce the net present valU! (NPV) of goods derived from swamps, NPV was maximised when 25-30% of th swamp was used for harvesting. Drainage and harvesting exceeded these levels, il part because property rights structures have shifted from common ownership tl open-access and in part because income equality is low and poorer people are mor inclined to use and drain swamps. The results of this study suggested that ther were similarities between swamp use that maximises socio-economic benefits an management that favours specialist bird species. This would imply th, conservation action designed to protect papyrus avian communities could also be ( benefit to rural inhabitants using swamp resources. However mutual benefits t birds and people are dependent upon reducing poverty.

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Thiere, Geraldine. "Biodiversity and ecosystem functioning in created agricultural wetlands." Doctoral thesis, Högskolan i Halmstad, Våtmarkscentrum, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2968.

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This doctoral dissertation was produced in a cooperation between Halmstad University (Wetland Research Centre, School of Business and Engineering) and Lund University (Limnology & Marine Biology, Department of Ecology). Abstract . Wetland creation at large, regional scales is implemented as a measure to abate the biodiversity loss in agricultural landscapes and the eutrophication of watersheds and coastal areas by non-point source nutrient pollution (mainly nitrogen). The consequences of creating many new wetlands for biodiversity conservation and nutrient reten- tion (ecosystem functioning) in agricultural landscapes are still relatively unknown, both on local (per wetland) and regional (per landscape) scales. In Sweden, wetland creation has progressed already since the 1990s, and by now larger numbers of created wetlands are present, mainly in the intensively farmed landscapes of southwestern Sweden. This thesis aimed to investigate the following aspects in these systems: (i) their large-scale effects on biodiversity, (ii) their functional diversity of bacterial denitrifiers, (iii) the abiotic and biotic influences on wetland ecosystem functioning, (iv) the potential for biodiversity-function links, and (v) the potential for functional links and joint functioning.(i) Created wetlands hosted diverse assemblages of macroinvertebrates and plants. They maintained a similar com- position and diversity as natural ponds in agricultural landscapes. The environmental conditions per wetland did hardly affect macroinvertebrate and plant assemblages, and the prerequisites for nutrient retention did neither. In landscapes were wetland creation efforts had increased the total density of small water bodies by more than 30%, macroinver- tebrate diversity of created wetlands was facilitated on both local and regional scales. (ii) Diverse communities of denitrifying bacteria with the capacity for conducting different denitrification steps (functional types) were present in all investigated wetlands. The richness of denitrifying bacteria communities was affected by nitrate concentration and hydraulic loading rate, which may potentially be relevant for the nitrogen retention function of created wetlands. The diversity across different functional types of bacterial denitrifiers increased with nitrate concentration. (iii) Both abiotic and biotic factors influenced ecosystem functions of created wetlands. Variation in nitrogen retention was associated to nitrate load, but even to vegetation parameters. In wetlands with constant nitrate load, planted emergent vegetation facilitated nitrogen retention compared to other vegetation types. In wetlands with variable loads, nitrogen retention was facilitated if nitrate load was high and many different vegetation types were present; nitrogen load could explain the majority of the variation in nitrogen retention compared to vegetation parameters. Phosporus retention of created wetlands was best explained by vegetation parameters. Litter decomposition was inhibited at high nitrate to phosphorus ratios. Methane production increased with age and decreased with plant cover. (iv) Biodiversity may facilitate wetland ecosystem functions, particularly in dynamic wetland ecosystems. Nitrogen retention increased with vegetation type diversity, phosphorus retention capacity with plant richness, and litter decomposition with macroinvertebrate diversity. (v) Created wetlands have the capacity of sustaining several parallel ecosystem services. Some wetland functions were coupled; nitrogen retention increased with fast litter decomposition. On the other hand, methane emission and nitro- gen retention were independent of each other, as were nitrogen and phosphorus retention.In conclusion, created wetlands have the potential to at least partly abate the lost biodiversity and multifunctionality caused by the past extensive destruction of natural wetlands in agricultural landscapes.

[Paper II] Milenkovski S., Thiere G., Weisner S.E.B., Berglund O. & Lindgren P.-E. Variation of eubacterial and denitrifying bacterial biofilm communities among constructed wetlands. Submitted manuscript. [Paper V] Thiere G. & Weisner S.E.B. Influence of biotic and abiotic parameters on ecosystem functioning of created wetlands. Manuscript.

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Stenert, Cristina. "Estrutura da comunidade de invertebrados aquáticos em arrozais do Rio Grande do Sul." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/1627.

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Universidade Federal de Sao Carlos
Wetlands are prioritary ecosystems for conservation due to their vast biological diversity and productivity, besides their many functions and value. In southern Brazil conservative data show that about 90% of the original wetlands are already destroyed due to agricultural expansion, mainly the irrigated rice fields. On the other hand, rice is the most important cereal grown in developing countries, being the main food source for more than half of the world population. Also, a high diversity of plants and animals has been found in these agricultural areas. The main goal of this study was to assess the structure and diversity of macroinvertebrates in rice fields and irrigation canals over the different hydrological phases of the cultivation cycle in an important rice cultivation area in Rio Grande do Sul to preserve the biota in these agroecosystems. Six collections were carried out along a cultivation cycle (June 2005 June 2006) in six rice fields and four irrigation canals in the Coastal Plain of Rio Grande do Sul. Quantitative samples of macroinvertebrates were obtained with a corer inserted 10 cm deep into the sediment, and also qualitative samples with a kick net.The main results obtained were: a total of 26,579 individuals assigned into 119 invertebrate taxa were collected in rice fields and irrigation canals; the maintenance of the dry fields and the flooded fields in the fallow phase favors the setting of a greater amount of macroinvertebrate taxa in the agricultural landscape; the irrigated rice fields can store and keep egg banks and other resistance structures of aquatic invertebrates viable along their cultivation cycle, and the irrigation canals work as habitats for the aquatic invertebrate community, thus assisting to keep the aquatic diversity in these agricultural areas. These results can be used in management plans which aim at reconciling agricultural production and biodiversity conservation in Rio Grande do Sul.
As áreas úmidas são ecossistemas prioritários para a conservação em vista de sua grande diversidade biológica e produtividade, além de suas inúmeras funções e valores. No Sul do Brasil, dados conservativos apontam que aproximadamente 90% das áreas úmidas originais já foram destruídas principalmente devido à expansão agrícola, especialmente de lavouras de arroz irrigado. Por outro lado, o arroz é o cereal mais importante cultivado em países em desenvolvimento, sendo o principal alimento para mais da metade da população mundial. Além disso, uma alta diversidade de espécies de plantas e animais tem sido encontrada nessas áreas agrícolas. O objetivo geral deste estudo foi avaliar a estrutura e a diversidade de macroinvertebrados em lavouras de arroz e em canais de irrigação nas diferentes fases hidrológicas do ciclo de cultivo em uma importante região orizícola do Rio Grande do Sul, visando a conservação da biota nestes agroecossistemas. Foram realizadas seis coletas ao longo de um ciclo de cultivo (junho de 2005 a junho de 2006) em seis lavouras de arroz e quatro canais de irrigação na Planície Costeira do Rio Grande do Sul. Foram obtidas amostras quantitativas de macroinvertebrados utilizando o amostrador do tipo core inserido nos 10 cm superficiais do sedimento, e amostras qualitativas, utilizando uma rede de mão. Os principais resultados obtidos foram: as amostragens resultaram em um total de 26.579 indivíduos distribuídos em 119 táxons de invertebrados coletados nas lavouras de arroz e canais de irrigação; a manutenção de lavouras de arroz com água e sem água no período de resteva favorece o estabelecimento de um maior número de táxons de macroinvertebrados dentro da paisagem agrícola; as lavouras de arroz irrigado são capazes de armazenar e manter viáveis os bancos de ovos e outras estruturas de resistência de invertebrados aquáticos ao longo de seu ciclo de cultivo; e os canais de irrigação funcionam também como hábitats para a comunidade de macroinvertebrados aquáticos, auxiliando na manutenção da biodiversidade aquática nessas áreas agrícolas. Esses resultados podem ser utilizados em planos de manejo que busquem conciliar a produção agrícola com a conservação da biodiversidade no Rio Grande do Sul.

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9

Buckallew, Robin R. "Comparison of Bare Root vs. Potted Plants, Species Selection, and Caging Types for Restoration of a Prairie Wetland, and Quantitative Analysis and Descriptive Survey of Plant Communities and Associations at Lewisville Lake Environmental Learning Area (LLELA), Lewisville, TX." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3700/.

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Lewisville Lake Environmental Learning Area (LLELA) is an 809-hectare property in Denton County, TX. A study of the vegetation community identified 466 species in 104 families, with 25% of the species from only two families, Asteraceae and Poaceae. The property demonstrates the characteristics of an early successional community, dominated by weedy species. Prairie communities are dominated by Johnson grass and ragweed, with climax tall grass prairie communities only in areas that have been planted with native grass seed. Forest communities are similarly in an early successional stage, dominated by the hackberry-elm-ash alliance, with small remnants of native Cross Timbers found in isolated patches. Species richness and diversity were highest in the forests and lowest in the wetlands; evenness, though not different across ecosystems, demonstrated a strong seasonal component. The species list was compared with previously reported lists for Denton County, and 256 species identified had not been previously reported for the county. A wetland restoration study was conducted to determine if there was a difference in survival and growth between potted transplants with intact root systems and bare-root transplants. Two different mesh sizes were used for protection, and the success of the different caging was evaluated. Of eight species, only four survived through the second growing season. There was no significant difference in the success of the propagule types for Sagittaria latifolia. The treatments planted with intact root systems showed significantly higher growth and reproduction than the bare-root treatments for Eleocharis quadrangulata, Heteranthera dubia, and Vallisneria americana. There was no survival recorded in the coarse mesh cages, likely due to the presence of crayfish that are able to get through the coarser mesh and feed on the transplants.

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DesRochers, David William. "Avian Communities of Created and Natural Wetlands: Saltmarshes of Southeast Virginia." W&M ScholarWorks, 2003. https://scholarworks.wm.edu/etd/1539626406.

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Books on the topic "Wetland biodiversity conservation"

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Roland, Bobbink, ed. Wetlands: Functioning, biodiversity conservation, and restoration. New York: Springer, 2008.

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Hwan'gyŏngbu, Korea (South). Discovering wetlands: A guide to Ramsar wetland & wetland protection areas of Korea. Gwacheon-si, Gyeonggi-do: Ministry of Environment, 2008.

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Ch'oe, T'ae-bong. A guide to wetland protection areas in Korea. [Sejong T'ŭkpyŏl Chach'isi]: Ministry of Environment, 2008.

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Das, Sujit Kumar Das. Floristic diversity and conservation of Ujani wetland (Maharashtra). Dehra Dun: Bishen Singh Mahendra Pal Singh, 2012.

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Xinxue, Shao, and Jiang Keyi, eds. Hangzhou Wan shi di huan jing yu sheng wu duo yang xing. Beijing: Zhongguo lin ye chu ban she, 2011.

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Nile Transboundary Environmental Action Project. Baseline for wetlands and biodiversity of Nile Basin Kenya. [Entebbe, Uganda]: The Nile Transboundary Environmental Action Project, Nile Basin initiative, 2010.

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P, Ekanayake S., and IUCN Sri Lanka, eds. A biodiversity status profile of Lunama--Kalametiya Wetland Sanctuary. Colombo, Sri Lanka: IUCN--Sri Lanka, 2005.

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Maqu shi di bao hu guan li. Lanzhou Shi: Gansu ren min chu ban she, 2009.

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Tangshan nan hu shi di gong yuan sheng wu duo yang xing ji sheng tai gui hua: Tangshan nanhu shidi gongyuan shengwu duoyangxing ji shengtai guihua. Beijing: Zhongguo lin ye chu ban she, 2010.

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Asian, Wetland Symposium 2001 (George Town Pinang). The Asian wetlands: Bringing partnerships into good wetland practices : proceedings of the Asian Wetland Symposium 2001 "bringing partnerships into good wetland practices", 27-30 August 2001, Penang, Malaysia. Minden, Pulau Pinang: Penerbit Universiti Sains Malaysia, 2002.

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Book chapters on the topic "Wetland biodiversity conservation"

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Barbier, Edward B. "Tropical Wetland Values and Environmental Functions." In Biodiversity Conservation, 147–69. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0277-3_9.

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Figueroa, Alejandra, Manuel Contreras, Bárbara Saavedra, and Carmen Espoz. "Chilean Wetlands: Biodiversity, Endemism, and Conservation Challenges." In The Wetland Book, 1–17. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-007-6173-5_247-1.

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Figueroa, Alejandra, Manuel Contreras, Bárbara Saavedra, and Carmen Espoz. "Wetlands of Chile: Biodiversity, Endemism and Conservation Challenges." In The Wetland Book, 1–17. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-007-6173-5_247-2.

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Figueroa, Alejandra, Manuel Contreras, and Bárbara Saavedra. "Wetlands of Chile: Biodiversity, Endemism, and Conservation Challenges." In The Wetland Book, 823–38. Dordrecht: Springer Netherlands, 2018. http://dx.doi.org/10.1007/978-94-007-4001-3_247.

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Barbier, Edward B. "Tropical Wetland Values and Environmental Functions." In Biodiversity Conservation: Problems and Policies, 139–61. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1006-8_9.

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Van Slobbe, Erik, E. Dick Morris, Niels Röling, Reinder Torenbeek, Koen Broker, and Hero Heering. "Social Learning in Wetland Development." In Wetlands: Functioning, Biodiversity Conservation, and Restoration, 269–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-33189-6_12.

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Souza Bosh, Teresa. "Environmental Conservation, Water, and Wetland Governance in Mexico." In Conflicts Between Biodiversity Conservation and Humans, 67–91. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-83270-4_5.

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Bobbink, Roland, Dennis F. Whigham, Boudewijn Beltman, and Jos T. A. Verhoeven. "Wetland Functioning in Relation to Biodiversity Conservation and Restoration." In Wetlands: Functioning, Biodiversity Conservation, and Restoration, 1–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-33189-6_1.

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Maltby, Edward. "Wetland Conservation and Management: Questions for Science and Society in Applying the Ecosystem Approach." In Wetlands: Functioning, Biodiversity Conservation, and Restoration, 93–116. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-33189-6_5.

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Walkey, Mike. "Aquatic biodiversity conservation in wetland and marine protected areas." In Integrated Protected Area Management, 181–208. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5279-6_8.

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Conference papers on the topic "Wetland biodiversity conservation"

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Minoranskiy, Viktor A., Ali M. Uzdenov, Vasiliy I. Dankov, and Yuliya V. Malinovskaya. "WETLANDS OF INTERNATIONAL IMPORTANCE IN THE ROSTOV REGION AND ISSUES OF CONSERVATION OF THEIR BIOLOGICAL RESOURCES." In Treshnikov readings – 2022 Modern geographical global picture and technology of geographic education. Ulyanovsk State Pedagogical University named after I. N. Ulyanov, 2022. http://dx.doi.org/10.33065/978-5-907216-88-4-2022-154-156.

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In the Rostov Region, wetlands of international importance include the Veselovsky Reservoir and Lake Manych-Gudilo. The history of the creation of these reservoirs, their importance in the life of the population is given. Attention is paid to changes in economic activity in wetland areas, the impact of these changes on biodiversity. The article examines the experience of the Association «Wildlife of the steppe», the biosphere reserve «Rostovsky», hunting farms «Argamak-R» and LLC «Agrosoyuz «Donskoy» for the restoration of biodiversity and bioresources. Recommendations on the conservation and reproduction of biological resources are given.

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Yang, Jie, Yue Yuan, and Bowei Wang. "Evaluation of Biodiversity Conservation Function of Ruoergai Wetland Ecological Protection Red Line Based on Satellite Data." In ICGSP 2022: 2022 The 6th International Conference on Graphics and Signal Processing. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3561518.3561530.

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Soulopoulou, Polyxeni, Juan Marco Molina, Maria Padilla Blanco, and Petros Damos. "Interrelationship between Environmental Drivers and Avian Biodiversity in a Mediterranean Like Natura 2000 Wetland and Implications for Conservation Management <sup>†</sup>." In 1st International Electronic Conference on Biological Diversity, Ecology and Evolution. Basel, Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/bdee2021-09488.

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Helle, Ilona, Panu Halme, Atte Komonen, and Riikka Paloniemi. "Biodiversity effects of constructed and restored wetlands – an ecological and socioeconomical approach." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/108039.

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Wahyudi, Deni, Monica Kusneti, and Suimah. "Biodiversity inventory and conservation opportunity of Suwi wetlands, Muara Ancalong, East Kalimantan, Indonesia." In THE 1ST INTERNATIONAL CONFERENCE ON MATHEMATICS, SCIENCE, AND COMPUTER SCIENCE (ICMSC) 2016: Sustainability and Eco Green Innovation in Tropical Studies for Global Future. Author(s), 2017. http://dx.doi.org/10.1063/1.4975951.

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JAVA, Oskars. "SIGNIFICANCE OF THINNING DEGRADED SWAMPS FOREST STANDS IN SUSTAINABLE ECOSYSTEM`S DEVELOPMENT." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.104.

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In scope of biodiversity and sustainable ecosystem development swamps ecosystem restoration is important, because by eradicating the effect of drainage in swamps, negative impact on adjacent intact or relatively intact raised swamps and hydrological regime of other wetlands is lowered. Tree cutting in degraded swamps forest stands would speed up restoration of ecosystems disturbed hydrological regime. Habitat conservation value in long-term is the same as for habitat 7110* Intact raised swamps, as in case of hydrological regime restoration, within time it will transform into 7110*. Several specially protected plant species can be found only in raised swamps. Tree stand transpiration volume varies depending on air temperature and solar radiation. Since in reality it is impossible to change air temperature or solar radiation in order to increase the groundwater level in a swamp, we can reduce the leaf area index (LAI) which is the most significant value influencing transpiration by cutting down trees. Aim of this paper is to examine how LAI interacts with groundwater level by using system dynamics swamps ecosystem model. Swamps ecosystem model shows correlation between LAI and groundwater level. As a result of this research author observes, that LAI interacts groundwater level and system dynamics modelling could be useful to calculate degraded swamps forest stands thinning intensity through mathematical relationships.

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Reports on the topic "Wetland biodiversity conservation"

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Saluja, Ridhi, and Thanapon Piman. The wetlands of the lower Songkhram River basin need collaborative conservation. Stockholm Environment Institute, August 2022. http://dx.doi.org/10.51414/sei2022.029.

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The wetlands of the lower Songkhram River basin are protected as a Ramsar site and a regional environmental asset, but they are under threat from numerous factors related to developmental activities. The lower Songkhram River is the last free-flowing tributary of the Mekong River and is a lifeline for over 14 000 households and a haven to many endemic biodiversity species. Local communities in the region have unique associations with the natural resources in the river basin, including the wetlands, and they perceive immense value in conserving these ecosystems. Natural resource policies lack specific guidelines and collaborative approaches for the protection, conservation and management of the wetland resources of the lower Songkhram River. The way forward should be led by a synchronized planning process, collaborative governance of the wetland resources, and empowerment of already existing local community groups.

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