964,803 research outputs found

    Biodiversity Quality: a paradigm for biodiversity

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    The internationally accepted definition of biodiversity creates difficulty in measuring difference and change. The authors suggest that well-sampled data can be used to generate a range of numerical indices reflecting species group characteristics/functionality (Species Richness, Simposons Index, Population Density, Biomass and Species Conservation Value) that can be viewed in combination to create a picture of biodiversity quality. This overall approach has considerable advantages over the currently accepted Convention on biological Diversity definition based on the "variability" of genes, species and ecosystems, since the numerical expression of the indices allows the probability of difference between biodiversity quality trends and values over time and between sites or taxonomic groups, to be assessed for statistical inference

    The Middle Eastern Biodiversity Network: Generating and sharing knowledge for ecosystem management and conservation

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    Despite prevailing arid conditions, the diversity of terrestrial and freshwater biota in the Middle East is amazingly high and marine biodiversity is among the highest on Earth. Th roughout the Region, threats to the environment are moderate to severe. Despite the outstanding economic and ecological importance of biological diversity, the capacity in biodiversity-related research and academic education is inadequate. The "Middle Eastern Biodiversity Network" (MEBN), founded in 2006 by six universities and research institutes in Iran, Jordan, Germany, Lebanon and Yemen was designed to fi ll this gap. An integrated approach is taken to upgrade biodiversity research and education in order to improve regional ecosystem conservation and management capacities. A wide range of activities are carried out in the framework of the Network, including capacity building in biological collection management and professional natural history curatorship, developing university curricula in biodiversity, conducting scientifi c research, organising workshops and conferences on Middle Eastern biodiversity, and translating the results of biodiversity research into conservation and sustainable development. Keywords: Middle Eastern biodiversity, nature museums, biodiversity research, biodiversity education, biodiversity conservation, biodiversity network

    Functional Biodiversity

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    Modern conventional agriculture is characterized by monocultures. These are less productive in terms of biomass than natural plant communities, which are usually complex mixtures of species and varieties, and they also require more inputs. A central question for organic agriculture is therefore how far we can move from monocultural to polycultural systems in order to benefit from this biodiversity without loss of yield. Rotations are one way of increasing biodiversity, but other components of the EFRC research programme are relevant: breeding programmes for wheat and kale aimed at producing crop populations rather than pure lines; variety and species mixtures, especially for cereals; intercropping legumes with a vegetable rotation (companion cropping) or cereals (bi-cropping), in order to bring the fertility-building and cropping phases of the rotation into the same part of the sequence; a biodiversity project looking at the farmed and non-farmed areas of organic and conventional farms; N, P and K budgeting as a means of designing rotations and intercropping systems; semiochemicals: the natural signalling processes between crops, pests and predators. The best illustration of functional biodiversity is perhaps in the agroforestry demonstration plots, where trees, cropping and livestock are combined

    A biodiversity jigsaw: A review of current New Zealand legislation and initiatives

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    Purpose: The purpose of this paper is to review the current legislation and initiatives surrounding biodiversity management, protection and sustainable use related to the New Zealand local government sector. Design/methodology/approach: This paper takes the form of an archival review of the academic databases, legislation and biodiversity related websites to ascertain the current legislation and initiatives in place in New Zealand surrounding biodiversity. Findings: The paper found biodiversity to be managed through a combination of legislation, national policies, strategies, trusts and contestable funds. The majority of biodiversity protection on private land is the responsibility of the 78 local authorities that comprise the local government sector through their administration of the Resource Management Act 1991. Despite the legislative requirement to protect and manage biodiversity the paper confirmed that no statutory framework currently exists to guide biodiversity reporting. Research limitations/implications: This study is limited to New Zealand biodiversity related legislation and initiatives. As such it may not necessarily be applicable to any other jurisdictions. Practical implications:This review illustrates the difficulty that exists in navigating the disjointed legislation and other initiatives relating to biodiversity. This currently hinders the development of framework for reporting on biodiversity by local government. However the development of such a framework is crucial to the conservation and sustainable use of New Zealand’s unique biodiversity for the benefit of current and future generations. Originality/value: This paper adds to the limited literature in the field of biodiversity reporting and extends it to the local government sector in New Zealand

    The value of native biodiversity enhancement in New Zealand: A case study of the greater Wellington area

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    New Zealand’s biodiversity consists of over 80,000 native plants, animals and fungi, many of which are indigenous and located on private property. To enhance native biodiversity and discourage activities that may deplete it, policies can be introduced that can encourage individual self-interest to coincide with social interest. Economic values for biodiversity can help to determine the best policy tools to use. In this project, we surveyed Greater Wellington Region households to determine their biodiversity enhancement values using the contingent valuation approach. Greater Wellington respondents placed a significant value on both private land biodiversity as well as public land biodiversity

    Biodiversity Loss and the Taxonomic Bottleneck: Emerging Biodiversity Science

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    Human domination of the Earth has resulted in dramatic changes to global and local patterns of biodiversity. Biodiversity is critical to human sustainability because it drives the ecosystem services that provide the core of our life-support system. As we, the human species, are the primary factor leading to the decline in biodiversity, we need detailed information about the biodiversity and species composition of specific locations in order to understand how different species contribute to ecosystem services and how humans can sustainably conserve and manage biodiversity. Taxonomy and ecology, two fundamental sciences that generate the knowledge about biodiversity, are associated with a number of limitations that prevent them from providing the information needed to fully understand the relevance of biodiversity in its entirety for human sustainability: (1) biodiversity conservation strategies that tend to be overly focused on research and policy on a global scale with little impact on local biodiversity; (2) the small knowledge base of extant global biodiversity; (3) a lack of much-needed site-specific data on the species composition of communities in human-dominated landscapes, which hinders ecosystem management and biodiversity conservation; (4) biodiversity studies with a lack of taxonomic precision; (5) a lack of taxonomic expertise and trained taxonomists; (6) a taxonomic bottleneck in biodiversity inventory and assessment; and (7) neglect of taxonomic resources and a lack of taxonomic service infrastructure for biodiversity science. These limitations are directly related to contemporary trends in research, conservation strategies, environmental stewardship, environmental education, sustainable development, and local site-specific conservation. Today’s biological knowledge is built on the known global biodiversity, which represents barely 20% of what is currently extant (commonly accepted estimate of 10 million species) on planet Earth. Much remains unexplored and unknown, particularly in hotspots regions of Africa, South Eastern Asia, and South and Central America, including many developing or underdeveloped countries, where localized biodiversity is scarcely studied or described. ‘‘Backyard biodiversity’’, defined as local biodiversity near human habitation, refers to the natural resources and capital for ecosystem services at the grassroots level, which urgently needs to be explored, documented, and conserved as it is the backbone of sustainable economic development in these countries. Beginning with early identification and documentation of local flora and fauna, taxonomy has documented global biodiversity and natural history based on the collection of ‘‘backyard biodiversity’’ specimens worldwide. However, this branch of science suffered a continuous decline in the latter half of the twentieth century, and has now reached a point of potential demise. At present there are very few professional taxonomists and trained local parataxonomists worldwide, while the need for, and demands on, taxonomic services by conservation and resource management communities are rapidly increasing. Systematic collections, the material basis of biodiversity information, have been neglected and abandoned, particularly at institutions of higher learning. Considering the rapid increase in the human population and urbanization, human sustainability requires new conceptual and practical approaches to refocusing and energizing the study of the biodiversity that is the core of natural resources for sustainable development and biotic capital for sustaining our life-support system. In this paper we aim to document and extrapolate the essence of biodiversity, discuss the state and nature of taxonomic demise, the trends of recent biodiversity studies, and suggest reasonable approaches to a biodiversity science to facilitate the expansion of global biodiversity knowledge and to create useful data on backyard biodiversity worldwide towards human sustainability

    Modelling biodiversity scenarios in madagascar under both the effects of climate change and anthropogenic deforestation

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    Madagascar is widely known for its exceptional biodiversity which is, for the terrestrial part, mainly concentrated in tropical forests. This biodiversity is severely threatened by both climate change and deforestation. The FRB (Fondation pour la Recherche sur la Biodiversité) project named BioSceneMada (http://bioscenemada.net) aims at modelling the biodiversity scenarios in Madagascar under both the effects of climate change and anthropogenic deforestation. In this study we present the first results of the project. We used presence data for more than 5000 species and bioclimatic envelope models to forecast species distribution under the effects of climate change. Species distribution maps were used to identify potential refugia for biodiversity. Combining these results to the projections of a deforestation model, we also identified the potential biodiversity hotspots under a high risk of deforestation. Project results should help define efficient strategies for conserving Madagascan biodiversity. In particular, we promote the inclusion of top priority areas for biodiversity conservation into the current Madagascar protected areas system

    Information and knowledge to promote Indian Ocean biodiversity

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    The web portal for Indian Ocean agriculture and biodiversity: www.agriculture-biodiversity-io.org The islands of the Indian Ocean are home to a unique and remarkable biodiversity. They have similar environmental conditions and are subject to common threats (e.g. global changes). Conserving biodiversity is essential to agricultural production, which is itself needed to feed people. Therefore agricultural production and conservation of biodiversity must be balanced for the sustainable development of the region. A web portal was conceived in order to promote this idea. The main targets are producers, scientists, general public, press and decision-makers. The objectives are to inform, to share documentation and knowledge, to offer training about the ways of preserving biodiversity for a sustainable food production. The Agriculture & Biodiversity Web Portal offers information on the strategies of Indian Ocean Commission member states, regulations and ongoing activities & laboratory research in the fields of agriculture and biodiversity. It offers tips for professionals to improve their daily practices, and educational tools for teachers to educate their students. Specialists can become contributor, post information on public forums on the website * and have a private area for major agriculture and biodiversity projects. The visitor can also get access to a specific tool to make contact: the Synaptic web platform. People working in the environment, biodiversity or agriculture can register directly on this platform, which allows to find collaborators. (Résumé d'auteur

    An insight into the impact of arable farming on Irish biodiversity: A scarcity of studies hinders a rigorous assessment

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    peer-reviewedTo help understand and counteract future agronomic challenges to farmland biodiversity, it is essential to know how present farming practices have affected biodiversity on Irish farms. We present an overview of existing research data and conclusions, describing the impact of crop cultivation on biodiversity on Irish arable farms. An extensive literature review clearly indicates that peer-reviewed publications on research conducted in Ireland on this topic are quite scarce: just 21 papers investigating the effect of conventional crop cultivation on Irish biodiversity have been published within the past 30 years. Principally, these studies have concluded that conventional crop cultivation has had an adverse impact on biodiversity on Irish farms, with 15 of the 21 studies demonstrating negative trends for the taxa investigated. Compared to other EU states, the relative dearth of baseline data and absence of monitoring programmes designed to assess the specific impacts of crop cultivation on Irish biodiversity highlight the need to develop long-term research studies. With many new challenges facing Irish agriculture, a research programme must be initiated to measure current levels of biodiversity on arable land and to assess the main farming ‘pressures’ causing significant biodiversity loss or gains in these systems.This work was funded under the EPA ERTDI Research Programme (Grant 2006-B-MS-46)

    How to include on-farm biodiversity in LCA on food?

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    Life Cycle Assessments (LCA) of food and agriculture generally include potential effects on global warming, eutrophication, ecotoxocity and acidification some of which again affect biodiversity. However, LCA most often does not include specific indicators of the product’s or agricultural system’s impact (negative or positive) on biodiversity. Using LCA methodology on agricultural products makes it highly relevant to assess the impacts of land use. Some LCA’s include a simple category of land use. This is sometimes interpreted as “nature occupation”. However, if this is the only impact category addressing land use related biodiversity, the LCA cannot distinguish between different forms of agricultural systems, which may differ in their biodiversity impact (e.g. organic versus conventional products). Biologists as well as policy makers consider some agricultural land use, such as grazing semi-natural grasslands, as beneficial for biodiversity preservation. Thus, land use in food production systems can have both positive and negative impacts on biodiversity compared to leaving the land untouched by humans. Simple, operational indicators to account for the different impacts on biodiversity in food production systems could take the point of departure in the most important factors affecting biodiversity (easy obtainable pressure indicators) instead of estimating e.g. species diversity directly
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