Journal of Wetlands Ecology最新文献_第3页

Ecophysiological observations on Keoladeo National Park, Bharatpur (India). 印度巴拉特普尔Keoladeo国家公园的生态生理观察。

Journal of Wetlands Ecology Pub Date : 2011-01-07 DOI: 10.3126/JOWE.V4I0.2588

R. Singh, R. M. Agarwal, A. Tiwari

{"title":"Ecophysiological observations on Keoladeo National Park, Bharatpur (India).","authors":"R. Singh, R. M. Agarwal, A. Tiwari","doi":"10.3126/JOWE.V4I0.2588","DOIUrl":"https://doi.org/10.3126/JOWE.V4I0.2588","url":null,"abstract":"Keoladeo National Park is a 'Ramsar site' which is flooded by Ajan bandh and is reserved for its high level of biodiversity. Owing to its global ecological, faunal and floral significance, it was declared a world heritage site in 1985. The total area i.e. 28.7 square km presents a variety of habitats i.e. marshy/wetlands, woodlands and grasslands etc. Wetlands support a variety of flora and fauna and have maximum biodiversity because of plenty of nutrients. However, wetlands may exhibit salinity due to upwelling of salts and that makes it a different site from the routine one. In order to evaluate the salinity status of the soil and its reflection on the vegetation, an analysis of soil and plants was carried out. For analysis three dominant plants of the Park viz. Acacia nilotica , Prosopis juliflora , and Mitragyna parvifolia were selected. Along with inorganic constituents, organic constituents of osmotica were also determined to evaluate their contribution under such conditions in plants. Key Words: Keoladeo National Park; Bharatpur; wetlands; Ramsar site; ecophysiological; salinity DOI: 10.3126/jowe.v4i0.2588 Journal of Wetlands Ecology , (2010) Vol. 4, pp. 43-68","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125565608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Avifaunal diversity and water quality analysis of an inland wetland 内陆湿地鸟类多样性与水质分析

Journal of Wetlands Ecology Pub Date : 2011-01-07 DOI: 10.3126/JOWE.V4I0.4151

Deshkar Sonal, Rathod Jagruti, Padate Geeta

引用次数: 18

Ecology of terrace wet rice-fish environment and role of periphyton. 梯田湿稻-鱼环境生态学及周围植物的作用。

Journal of Wetlands Ecology Pub Date : 2011-01-07 DOI: 10.3126/JOWE.V4I0.2585

S. K. Saikia, D. Das

{"title":"Ecology of terrace wet rice-fish environment and role of periphyton.","authors":"S. K. Saikia, D. Das","doi":"10.3126/JOWE.V4I0.2585","DOIUrl":"https://doi.org/10.3126/JOWE.V4I0.2585","url":null,"abstract":"The waterlogged terrace wet rice-fields of Apatani Plateau located at an altitude of 1500msl in Arunachal Pradesh of the north eastern India are stocked with fish Common carp ( Cyprinus carpio L) for several decades. The fishes are not fed with supplementary feeds because of the rich organic nature of the rice-fields. The study on water and soil of these fields revealed a strong co-relation to such organic nature. The wet rice-fish integrated fields exhibited the characters of shallow wet ecosystems. The water canals traversed through the rice fields were found inundated with water up to 50m showing the nature of Deep Water Rice fields (DWR) at least for one month. Significant (p<0.001) variations of water were observed for dissolved oxygen (DO) and carbon dioxide (CO 2 ) to diurnal and seasonal changes. Alkalinity of the fields intends to play a role towards its productivity which is otherwise played by DO in other aquatic systems. Soil nitrogen reflected a gradual increasing trend of organic nature. Role of periphyton may not be ignored to the high phosphorus level of the soil at later flood phases in these fields. Key words: Rice-fish; aquatic ecosystem; organic practice; plankton; periphyton DOI: 10.3126/jowe.v4i0.2585 Journal of Wetlands Ecology , (2010) Vol. 4, pp 102-111","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132043893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

ASSESSMENT AND MONITORING OF SPATIO-TEMPORAL CHANGES IN KEOLADEO GHANA NATIONAL PARK, RAJASTHAN, INDIA USING GEOINFORMATICS 基于地理信息学的印度拉贾斯坦邦keoladeo加纳国家公园时空变化评价与监测

Journal of Wetlands Ecology Pub Date : 2011-01-07 DOI: 10.3126/JOWE.V4I0.3115

C. Reddy, P. H. Krishna, V. Swetha, T. Shivakala, P. Charan

{"title":"ASSESSMENT AND MONITORING OF SPATIO-TEMPORAL CHANGES IN KEOLADEO GHANA NATIONAL PARK, RAJASTHAN, INDIA USING GEOINFORMATICS","authors":"C. Reddy, P. H. Krishna, V. Swetha, T. Shivakala, P. Charan","doi":"10.3126/JOWE.V4I0.3115","DOIUrl":"https://doi.org/10.3126/JOWE.V4I0.3115","url":null,"abstract":"Knowledge of changes in wetlands is becoming a very important issue for sustainable management of natural resources. The present work has been carried out: in Keoladeo Ghana National Park (KNP), a RAMSAR site to study the dynamics of wetlands with reference to long-term and seasonal changes in extent of water spread, vegetation types and to build a spatial database on wetlands. Multi-temporal satellite data of Landsat MSS (1977), Landsat TM data (1989), IRS P6 AWIFS (2005) and IRS P6 LISS III data (2005-2006) was used for mapping and spatial analysis. Comparisons between 1977 and 2005 indicated that changes in overall wetland areas were significant. The total area of wetland in March 1977 was 186 hectares and in March 2005 it was found to be 7.5 ha. There is a drastic reduction in spatial extent of water spread from October to May and results indicated that the total area ranged from 528 ha (October 2005) to 7.5 ha (March-May 2005). The study clearly points that Geoinformatics have become very effective tool for wetlands mapping and monitoring. Key words: wetlands; geoinformatics; satellite data; Keoladeo; Rajasthan DOI: 10.3126/jowe.v4i0.3115 Journal of Wetlands Ecology , (2010) Vol. 4, pp 33-42","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"7 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125885928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Biodiversity of Koshi Tappu Wildlife Reserve: a post flood assessment Koshi Tappu野生动物保护区的生物多样性:洪水后的评估

Journal of Wetlands Ecology Pub Date : 2011-01-07 DOI: 10.3126/JOWE.V4I0.3734

T. Khatri, D. Shah, R. Shah, N. Mishra

{"title":"Biodiversity of Koshi Tappu Wildlife Reserve: a post flood assessment","authors":"T. Khatri, D. Shah, R. Shah, N. Mishra","doi":"10.3126/JOWE.V4I0.3734","DOIUrl":"https://doi.org/10.3126/JOWE.V4I0.3734","url":null,"abstract":"Koshi Tappu Wildlife Reserve and its associated wetlands including Saptakoshi River are important wetland habitats for the critically endangered Wild Water Buffalos ( Bubalus bubalis arnee ), Migratory Birds and River Dolphins ( Platanista gangetica ). Rapid and complete inundation of the Reserve during monsoon and frequent changes in river courses almost every year has been the biggest threat to the existence of wild buffalo (locally known as 'Arna') and other wildlife. The breach of eastern embankment of the Koshi barrage at Kusaha of Sunsari district on 18th August 2008, created havoc for wildlife and their habitats, people’s livelihood and welfare. A study was therefore conducted to ascertain the status of biodiversity within Koshi Tappu Wildlife Reserve and its Buffer Zone from March to November 2009 to come up with the status of Arna, dolphins, marsh mugger crocodile, Swamp francolin (Simtitra), and vulture population and assess the ecological status of wetlands. Direct count method, transect method, point counts, qualitative samplings, field observation and social survey were carried out to study the biodiversity status. A total of 219 wild water buffalo, 11 dolphins, 5 marsh mugger crocodiles, 52 to 74 Swamp francolin and 517 vultures. The studied wetlands were moderately polluted. Altogether 42 taxa of benthic macro invertebrates were recorded. The results were further compared with a few years of data before the flood occurrence. The current result showed an encouraging population of key species at the Reserve but the threats for conservation still remain challenging. Key words: biodiversity; critically endangered; human pressure; Koshi breach; stewardship; wetlands DOI: 10.3126/jowe.v4i0.3734 Journal of Wetlands Ecology , (2010) Vol. 4, pp 69-82","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123378195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Comparison of river quality indices to detect the impact of organic pollution and water abstraction in Hindu Kush-Himalayan rivers of Nepal. 尼泊尔兴都库什-喜马拉雅河流有机污染和取水影响的河流质量指标比较。

Journal of Wetlands Ecology Pub Date : 2011-01-07 DOI: 10.3126/JOWE.V4I0.2545

C. Feld, M. Tangelder, M. J. Klomp, Subodh Sharma

{"title":"Comparison of river quality indices to detect the impact of organic pollution and water abstraction in Hindu Kush-Himalayan rivers of Nepal.","authors":"C. Feld, M. Tangelder, M. J. Klomp, Subodh Sharma","doi":"10.3126/JOWE.V4I0.2545","DOIUrl":"https://doi.org/10.3126/JOWE.V4I0.2545","url":null,"abstract":"Several assessment methods exist for river quality classification in the Hindu Kush-Himalayan region. While rapid field bioassessment (RFB)1 applies on-site screening protocols, more sophisticated multi-habitat sampling (MHS) is employed to generate biotic scores using benthic macroinvertebates as bioindicators. This study presents the comparison of River Quality Classifications (RQC) according to i) 40 RFB records based on two slightly different RFB protocols and ii) 20 qualitative benthic macroinvertebrate samples used to calculate two different scores (average scores per taxon; ASPT). Sensory attributes, such as odour, colour, foam and epilithic algal cover, were used in addition to biological samples for RFB. All samples were taken at two river basins in Nepal, the Punyamata river (12 stations, stressor: organic pollution) and the Khimti river (8 stations, stressor: damming and water abstraction). RQCs revealed organic pollution to impact benthic invertebrate communities in the Punyamata river, while the impact of water abstraction and damming was not detectable in the Khimti basin based on the methods compared. Furthermore, a pollution gradient was clearly detectable based on 66 macroinvertebrate families and genera found in our samples. Our results confirm the applicability of RFB protocols and scoring systems to asses the impact of organic pollution in Nepalese rivers. Further research, however, will be required to adjust the protocols and taxon scores to assess also the impact of other stressors present in the region. Key words: Rapid field bioassessment; benthic macroinvertebrates; NEPBIOS; ASPT; water quality; Punyamata; Khimti DOI: 10.3126/jowe.v4i0.2545 Journal of Wetlands Ecology , (2010) Vol. 4, pp 112-127","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134141781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Influence of Limiting Factors on Phytoplankton and Coliform Population in an Inundated, Isolated Wetland 淹没孤立湿地限制因素对浮游植物和大肠菌群数量的影响

Journal of Wetlands Ecology Pub Date : 2009-12-21 DOI: 10.3126/JOWE.V3I0.2225

J. Kumar, C. Oommen

{"title":"Influence of Limiting Factors on Phytoplankton and Coliform Population in an Inundated, Isolated Wetland","authors":"J. Kumar, C. Oommen","doi":"10.3126/JOWE.V3I0.2225","DOIUrl":"https://doi.org/10.3126/JOWE.V3I0.2225","url":null,"abstract":"The relationships of phytoplankton with physical (temperature, pH), chemical (dissolved oxygen, phosphate, sulphate and nitrate) and biotic (total and fecal coliforms) parameters were analysed for the year September 2007 to August 2008 in a seasonally inundated, isolated wetland - Malwar which is situated between 22° 36'55.78\" N and 72°54'58.01\" E; about 7 kilometres from Anand, near Kanjari- Boriyavi railway station, Central Gujarat, India. Phytoplankton species belonged to Cyanophyceae, Chlorophyceae, Bacillariophyceae and Euglenophyceae. Cyanophyceae members accounted for 68% of the total phytoplankton population, followed by Chlorophyceae which accounted for 23% and the rest 9% were the members of Bacillariophyceae and a single species of Euglenophyceae. ANOVA indicated significant variation in phytoplankton species richness between the two study sites (P ≤ 0.001). Significant temporal variation for Cyanophyceae density (P ≤ 0.05) was also recorded. Correlation coefficients (r) among the various hydro-chemical properties and different phytoplankton groups (densities) were calculated (correlation matrix). Key words : Phytoplankton; total coliform; fecal coliform; hydro-chemical parameters DOI: 10.3126/jowe.v3i0.2225 Journal of Wetlands Ecology , (2009) Vol. 3, pp 43-55","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132808469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

SEASONAL VARIABILITY OF DISSOLVED NUTRIENTS IN MANGROVE ECOSYSTEMS ALONG SOUTH WEST COAST OF KERALA, INDIA 印度喀拉拉邦西南海岸红树林生态系统中溶解营养物的季节变化

Journal of Wetlands Ecology Pub Date : 2009-12-21 DOI: 10.3126/JOWE.V3I0.2264

R. Geetha, N. Chandramohanakumar, L. Mathews

引用次数: 3

Water Quality Parameters and Macroinvertebrates Index of Biotic Integrity of the Jimma Wetlands, Southwestern Ethiopia 埃塞俄比亚西南部Jimma湿地水质参数和大型无脊椎动物生物完整性指数

Journal of Wetlands Ecology Pub Date : 2009-12-11 DOI: 10.3126/JOWE.V3I0.2265

Hayal Desta Yimer, S. Mengistou

{"title":"Water Quality Parameters and Macroinvertebrates Index of Biotic Integrity of the Jimma Wetlands, Southwestern Ethiopia","authors":"Hayal Desta Yimer, S. Mengistou","doi":"10.3126/JOWE.V3I0.2265","DOIUrl":"https://doi.org/10.3126/JOWE.V3I0.2265","url":null,"abstract":"The wetlands located at the periphery of Jimma town, southwestern Ethiopia, have critical roles in providing a range of ecological and socio-economic benefits, yet they are subject to increasing anthropogenic disturbances, notably through agriculture, settlement, intensive grazing and brick-making. This study assessed the ecological status of these wetlands, and examined the scale of the human disturbances that local communities might impose on them. Macroinvertebrate communities, water quality parameters, and human disturbance scores were assessed. Except for electrical conductivity and water temperature, no significant difference (P < 0.05) was found in physico-chemical parameters between the sampled sites. Nitrate was the only parameter that correlated with significant influence on species richness of the sampled macroinvertebrates. A total of 10 metrics were used to generate the index of biotic integrity (IBI). This IBI was then tested based on macroinvertebrate data collected. Ways of assessing and evaluating the existing ecological status of the wetlands are discussed in the context of physico-chemical parameters, IBI based on macroinvertebrates and human disturbance scales. Key Words : Catchments land use; Water quality; Macroinvertebrate; Index of Biotic Integrity; Wetland DOI: 10.3126/jowe.v3i0.2265 Journal of Wetlands Ecology , (2009) Vol. 3, pp 77-93","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114185843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 38

A Brief Review on Limnological Status of High Altitude Lakes in Nepal 尼泊尔高海拔湖泊湖泊状况综述

Journal of Wetlands Ecology Pub Date : 2009-12-11 DOI: 10.3126/JOWE.V3I0.2387

S. Gurung, Subodh Sharma, Chhatra Mani Sharma

{"title":"A Brief Review on Limnological Status of High Altitude Lakes in Nepal","authors":"S. Gurung, Subodh Sharma, Chhatra Mani Sharma","doi":"10.3126/JOWE.V3I0.2387","DOIUrl":"https://doi.org/10.3126/JOWE.V3I0.2387","url":null,"abstract":"The Hindu Kush - Himalaya (HKH), extending about 3,500 km from east to west in Asia from Myanmar in the east to Afghanistan in the west, form the water sources for many rivers that have spiritual, cultural and economic values. The biodiversity is unique and rich yet not adequately explored and studied. Some studies have been carried out in the Kashmir Himalaya in India followed by Everest Region in Nepal. Most of the studies have dealt with physico-chemical analysis of the water samples; however complete bathymetric and limnological studies have not been performed. The high altitude Himalayan lakes are remote and difficult to access. They are characterized by the presence of glacial silt, low Sechhi values, low conductivity and neutral pH. The most dominant cation and anion in high altitude lakes are Calcium (Ca) and Bicarbonate (HCO 3 ) respectively with few exceptions. Water chemistry of the lakes is dependent on the geolithology of the catchment area. Most of these lakes are categorized as oligotrophic or ultraoligotrophic. Biological communities are represented only by stenothermal species typical of high altitude lakes. Palaeolimnological studies could provide an insight into the environmental reconstruction which in turn may help to develop monitoring tools for these unique habitats. Key words: Himalaya; high altitude lakes; physico-chemical parameters; biological community; Palaeolimnology DOI: 10.3126/jowe.v3i0.2387 Journal of Wetlands Ecology , (2009) Vol. 3, pp 12-22","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132806764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5