Wetlands Australia Journal最新文献_第10页

Wetlands mitigation in the United States: assessing the success of mitigation policies 美国的湿地缓解:评估缓解政策的成功

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.242

R. Ambrose

{"title":"Wetlands mitigation in the United States: assessing the success of mitigation policies","authors":"R. Ambrose","doi":"10.31646/WA.242","DOIUrl":"https://doi.org/10.31646/WA.242","url":null,"abstract":"Over most of the past 200 years, wetlands were viewed as useless or worse and about 50% of the original wetlands in the United States were destroyed. Over the past few decades, as the ecological and economic values of wetland habitats have been increasingly recognised, a variety of laws and policies (most notably Section 404 of the Clean Water Act) have been adopted to protect wetland reseources. Mitigation is the cornerstone of these policies, whereby wetlands losses are compensated by wetland restoration, creation or enhancement. Recent surveys show that mitigation policies have reduced the rate of wetland losses, but they have not achieved the goal of “no net loss”. Most of these surveys have relied on permit files or simple field visits. These studies show that the area of wetland proposed for mitigation often does not meet the area impacted. In addition, few mitigation projects are in compliance with all of their permit conditions. The picture is even worse when one considers the ability of restored wetlands to replace natural wetlands functions. Several qualitative assessments of wetland mitigation projects in California indicate that some projects produce high quality habitat, but most are moderate quality and some are very low quality. A quantitative functional assessment of riparian mitigation projects in Orange County, California showed that none of the mitigation projects were successful from a functional perspective. To prevent continued wetland losses, permit conditions must focus on wetland functions, migration ratios (the area of mitigation required compared to the area lost) must be larger, permit conditions must be enforced, and monitoring and remediation must be improved.","PeriodicalId":197128,"journal":{"name":"Wetlands Australia Journal","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130552389","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: 30

Botany Bay Benthos: Status and management 植物湾底栖动物:现状与管理

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.167

A. Jones

引用次数: 2

Long-term flooding stimulates stilit-root production in Avicennia marina 长期的洪水刺激了Avicennia码头的枯根生产

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.233

W. G. Allaway, M. Curran, P. F. E. Goulter, C. Newman, M. C. Ricketts

引用次数: 1

Mangroves as successional stages on the Hawkesbury River 红树林是霍克斯伯里河上的连续阶段

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.189

N. Saintilan

引用次数: 9

Plant community organization in New South Wales saltmarshes:species mosaics and potential causes 新南威尔士州盐沼的植物群落组织:物种镶嵌和潜在原因

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.155

J. Zedler, P. Nelson, P. Adam

{"title":"Plant community organization in New South Wales saltmarshes:species mosaics and potential causes","authors":"J. Zedler, P. Nelson, P. Adam","doi":"10.31646/WA.155","DOIUrl":"https://doi.org/10.31646/WA.155","url":null,"abstract":"Saltmarsh communities recognised by Outhred and Buckney (1983) bad Adam et al. (1988) were analysed for similarity, and we suggest that the vegetation of the majority of the mid-intertidal marsh in NSW be considered a single community complex, i.e. a mosaic dominated by Sporoblous virginicus, Sarcocornia quinqueflora and Triglochin striatum, wither alone or in combination. Triglochin appeared to be abundant more often in Outhred and Buckney's (1983) study of Kooragang Island that in the broader survey of NSW saltmarshes conducted by Adam et al. (1988). Our field sampling at Kooragang Island suggested that widespread disturbance by cattle could explain such a difference. \u0000 \u0000 \u0000We characterised spatial variability within the mid-intertidal saltmarsh mosaic at Kooragang and explored evidence suggesting species interactions. All three dominants were positively associated at the square-meter scale in a heavily grazed saltmarsh at Kooragang Island, but not at reference sites having less disturbance from cattle. Negative correlations of cover estimates between pairs of co-occurring species supported the hypothesis that the three dominants are competitors. We hypothesised that Sporoblous is capable of excluding Triglochin in the absence of canopy and/or rhizosphere disruption. Cattle graze the thick canopy of Sporoblous, and their hooves disrupt its dense rhizosphere allowing pooling of tidal water. These wet gaps appear highly suitable for establishment of the waterlogging-tolerant Triglochin. Observations of Sarcocornia in areas of high salinity, regardless of intertidal position, suggest that hypersalinity shifts the competitive advantage. These hypotheses about what controls dominance need to be tested experimentally, paying careful attention to the size of treatment plots and number of replicates in order to detect small changes in species occurrence and cover.","PeriodicalId":197128,"journal":{"name":"Wetlands Australia Journal","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127506579","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: 16

Reversing the trend 扭转趋势

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.171

P. Adam

引用次数: 1

Designing and building dynamic coasts and wetlands: developing a no net loss approach 设计和建造充满活力的海岸和湿地:发展无净损失的方法

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.244

D. Huggett

引用次数: 2

Checklist of fishes from the Hacking River catchment, including the Port Hacking estuary, in Central New South Wales 新南威尔士州中部的黑客河集水区，包括黑客港河口的鱼类清单

Wetlands Australia Journal Pub Date : 2010-01-23 DOI: 10.31646/WA.236

B. Pease, S. Herbert

引用次数: 1

Towards co-operation in the marine sciences. 促进海洋科学方面的合作。

Wetlands Australia Journal Pub Date : 2010-01-22 DOI: 10.31646/WA.65

C. Field

{"title":"Towards co-operation in the marine sciences.","authors":"C. Field","doi":"10.31646/WA.65","DOIUrl":"https://doi.org/10.31646/WA.65","url":null,"abstract":"In 1981 the Australian Science and Technology Council produced a report entitled “Towards a Marine Sciences and Technologies Programme for the 1980’s”. This report marked a much needed awakening to the need for Australia to develop it’s marine resources and to assume responsibility for the stewardship of its coastal waters and the 200 nautical mile offshore zone. The report also stressed that co-operative programmes were needed to pursue national objectives that relate to economic exploitation of marine resources, management and conservation policies and the fulfilment of social responsibilities. \u0000 \u0000At about the same time the decision was made by CSIRO to locate its Divisions of Oceanography and Fisheries Research in Hobart, so vacating the miarne laboratories at Cronulla in New South Wales. Almost simultaneously, and to the deep regret of all marine scientists, the decision to close the Roche Research Institute of Marine Pharmacology was announced. These two decisions meant that the prosecution of marine science in New South Wales suffered a severe set-back. Opportunities for collaborative research, educational co-operation, and employment for marine scientists in New South Wales were all reduced. We have paradox in New South Wales of the Australian Science and Technology Council calling for “the efficient deployment and progressive development of the resources, facilities and expertise in government agencies, educational research institutions and in industry”, while at the same time the nexus in the marine sciences between industry, government agencies and educational and research institutions was being dismantled.","PeriodicalId":197128,"journal":{"name":"Wetlands Australia Journal","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132724160","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: 0

Sublittoral zoobenthic communities of Hombush, Ermington and Brays Bays, Parramatta River, NSW. 新南威尔士州帕拉马塔河Hombush, Ermington和Brays海湾的亚沿海底栖动物群落。

Wetlands Australia Journal Pub Date : 2010-01-22 DOI: 10.31646/WA.122

A. Jones, J. Francés

引用次数: 2