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  1. Article: Balancing effective conservation with sustainable resource use in protected areas: precluded by knowledge gaps

    VAN WILGEN, NICOLA J / MCGEOCH, MELODIE A

    Environmental conservation. 2015 Sept., v. 42, no. 3

    2015  

    Abstract: Despite significant expansion of the global protected area (PA) network, this investment has not commonly been matched by investment in their management. This includes managing trade-offs between social and biodiversity goals, including resource use in ... ...

    Abstract Despite significant expansion of the global protected area (PA) network, this investment has not commonly been matched by investment in their management. This includes managing trade-offs between social and biodiversity goals, including resource use in PAs. While some resource-use activities receive significant attention, the full suite of resources extracted from PA systems is rarely documented. This paper illustrates the potential risk of resource use to PA ecological performance through a survey of resources harvested in South Africa's national parks. Even for this comparatively well-managed suite of parks, significant data gaps preclude assessments of harvest sustainability. Harvest quantities were known for < 8% of the 341 used resources, while 23% were not identified to species level. International Union for the Conservation of Nature Red List conservation status had not been evaluated for 78% of species, and 31% of all species (83% of marine species) had not been evaluated nationally. Protected areas face ongoing pressure to balance people-based and biodiversity outcomes, but whether or not both objectives can be achieved cannot be assessed without adequate data. Managing PAs in future will require consideration of trade-offs between investing in PA expansion, increasing the monitoring and management capacity of PA agencies, and investing in the research needed to support decision making.
    Keywords biodiversity ; conservation areas ; conservation status ; decision making ; monitoring ; national parks ; risk ; surveys ; South Africa
    Language English
    Dates of publication 2015-09
    Size p. 246-255.
    Publishing place Cambridge University Press
    Document type Article
    ZDB-ID 1470226-5
    ISSN 1469-4387 ; 0376-8929
    ISSN (online) 1469-4387
    ISSN 0376-8929
    DOI 10.1017/S0376892914000320
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Species and community responses to short-term climate manipulation: Microarthropods in the sub-Antarctic

    MCGEOCH, MELODIE A / LE ROUX, PETER C / HUGO, ELIZABETH A / CHOWN, STEVEN L

    Austral ecology. 2006 Sept., v. 31, no. 6

    2006  

    Abstract: Both species and community-level investigations are important for understanding the biotic impacts of climate change, because current evidence suggests that individual species responses are idiosyncratic. However, few studies of climate change impacts ... ...

    Abstract Both species and community-level investigations are important for understanding the biotic impacts of climate change, because current evidence suggests that individual species responses are idiosyncratic. However, few studies of climate change impacts have been conducted on entire terrestrial arthropod communities living in the same habitat in the southern Hemisphere, and the effects of precipitation changes on them are particularly poorly understood. Here we investigate the species- and community-level responses of microarthropods inhabiting a keystone plant species, on sub-Antarctic Marion Island, to experimental reduction in precipitation, warming and shading. These climate manipulations were chosen based on observed climate trends and predicted indirect climate change impacts on this system. The dry-warm and shade inducing treatments that were imposed effected significant species- and community-level responses after a single year. Although the strongest community-level trends included a dramatic decline in springtail abundance and total biomass under the dry-warm and shade treatments, species responses were generally individualistic, that is, springtails responded differently to mites, and particular mite and springtail species responded differently to each other. Our results therefore provide additional support for the dynamic rather than static model for community responses to climate change, in the first such experiment in the sub-Antarctic. In conclusion, these results show that an ongoing decline in precipitation and increase in temperature is likely to have dramatic direct and indirect effects on this microarthropod community. Moreover, they indicate that while at a broad scale it may be possible to make generalizations regarding species responses to climate change, these generalizations are unlikely to translate into predictable effects at the community level.
    Keywords Collembola ; arthropod communities ; biomass ; climate ; climate change ; habitats ; mites ; models ; shade ; temperature
    Language English
    Dates of publication 2006-09
    Size p. 719-731.
    Publisher Blackwell Publishing Asia
    Publishing place Melbourne, Australia
    Document type Article
    ZDB-ID 2756933-0
    ISSN 2052-1758 ; 1442-9985
    ISSN (online) 2052-1758
    ISSN 1442-9985
    DOI 10.1111/j.1442-9993.2006.01614.x
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Framing the concept of satellite remote sensing essential biodiversity variables

    Pettorelli, Nathalie / Wegmann, Martin / Skidmore, Andrew / Mücher, Sander / Dawson, Terence P. / Fernandez, Miguel / Lucas, Richard / Schaepman, Michael E. / Wang, Tiejun / O'Connor, Brian / Jongman, Robert H.G. / Kempeneers, Pieter / Sonnenschein, Ruth / Leidner, Allison K. / Böhm, Monika / He, Kate S. / Nagendra, Harini / Dubois, Grégoire / Fatoyinbo, Temilola /
    Hansen, Matthew C. / Paganini, Marc / De Klerk, Helen M. / Asner, Gregory P. / Kerr, Jeremy T. / Estes, Anna B. / Schmeller, Dirk S. / Heiden, Uta / Rocchini, Duccio / Pereira, Henrique M. / Turak, Eren / Fernandez, Nestor / Lausch, Angela / Cho, Moses A. / Alcaraz-segura, Domingo / Mcgeoch, Mélodie A. / Turner, Woody / Mueller, Andreas / St-Louis, Véronique / Penner, Johannes / Vihervaara, Petteri / Belward, Alan / Reyers, Belinda / Geller, Gary N.

    Remote Sensing in Ecology and Conservation

    challenges and future directions

    2016  Volume 2, Issue 3

    Abstract: Although satellite-based variables have for long been expected to be key components to a unified and global biodiversity monitoring strategy, a definitive and agreed list of these variables still remains elusive. The growth of interest in biodiversity ... ...

    Abstract Although satellite-based variables have for long been expected to be key components to a unified and global biodiversity monitoring strategy, a definitive and agreed list of these variables still remains elusive. The growth of interest in biodiversity variables observable from space has been partly underpinned by the development of the essential biodiversity variable (EBV) framework by the Group on Earth Observations – Biodiversity Observation Network, which itself was guided by the process of identifying essential climate variables. This contribution aims to advance the development of a global biodiversity monitoring strategy by updating the previously published definition of EBV, providing a definition of satellite remote sensing (SRS) EBVs and introducing a set of principles that are believed to be necessary if ecologists and space agencies are to agree on a list of EBVs that can be routinely monitored from space. Progress toward the identification of SRS-EBVs will require a clear understanding of what makes a biodiversity variable essential, as well as agreement on who the users of the SRS-EBVs are. Technological and algorithmic developments are rapidly expanding the set of opportunities for SRS in monitoring biodiversity, and so the list of SRS-EBVs is likely to evolve over time. This means that a clear and common platform for data providers, ecologists, environmental managers, policy makers and remote sensing experts to interact and share ideas needs to be identified to support long-term coordinated actions.
    Keywords Biodiversity monitoring ; earth observation ; essential climate variable ; monitoring strategy ; policy ; satellite remote sensing
    Subject code 710
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 2825232-9
    ISSN 2056-3485
    ISSN 2056-3485
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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