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  • Murray, Brad R.  (3)
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  • 1
    Online Resource
    Online Resource
    Ecosystem services: an ecophysiological examination
    CSIRO Publishing ; 2005
    In:  Australian Journal of Botany Vol. 53, No. 1 ( 2005), p. 1-
    Details
    In: Australian Journal of Botany, CSIRO Publishing, Vol. 53, No. 1 ( 2005), p. 1-
    Abstract: This review aims to discuss ecosystem services, provide illustrative case studies at catchment and local scales and present future research needs. This review discusses the following: (1) Ecosystem services (ES) are those goods and services that are provided by or are attributes of ecosystems that benefit humans. Examples of ES include the timber derived from a forest, the prevention of soil and coastal erosion by vegetation and the amelioration of dryland salinity through prevention of rises in the water table by trees. The provision of ES globally is in decline because of a lack of awareness of the total economic value of ES in the public, policy and political fora. (2) Providing a scientific understanding of the relationships among ecosystem structure, function and provision of ES, plus determining actual economic value of ES, are the central challenges to environmental scientists (including triple-bottom-line economists). (3) Some ES are widely dispersed throughout many different ecosystems. Carbon accumulation in trees and the contribution of biodiversity to ES provision are two examples of highly dispersed attributes common to many ecosystems. In contrast, other ES are best considered within the context of a single defined ecosystem (although they may occur in other ecosystems too). Mangroves as ‘nursery’ sites for juvenile fish is one example. (4) Examples of catchment-scale and local-scale provision of ES are discussed, along with future research issues for the nexus between ES and environmental sciences.
    Type of Medium: Online Resource
    ISSN: 0067-1924
    URL: Article
    DOI: 10.1071/BT04119
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2005
    detail.hit.zdb_id: 218056-X
    SSG: 12
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    Online Resource
  • 2
    Online Resource
    Online Resource
    The potential impact of dryland salinity on the threatened flora and fauna of New South Wales
    Wiley ; 2003
    In:  Ecological Management & Restoration Vol. 4, No. s1 ( 2003-02)
    Details
    In: Ecological Management & Restoration, Wiley, Vol. 4, No. s1 ( 2003-02)
    Abstract: Summary We used digital map overlays in a geographical information system (GIS) to quantify the potential impact of dryland salinity on the threatened flora and fauna of New South Wales (NSW). Geographical areas of conservation priority were identified based on richness of threatened species with distribution records overlapping dryland salinity. Two alternative schemes – Interim Biogeographical Regionalization for Australia (regions) and catchment boundaries (catchments) – were used to subdivide NSW. Sydney Basin, North Coast and South‐western Slopes regions – and Hunter, Sydney, Macquarie, Murrumbidgee and Lachlan catchments – were identified as priority areas with more than 10 salinity‐overlap species present. Five threatened plant species were identified as priority species due to more than half of their known distributions overlapping areas of dryland salinity. Threatened animal species of most concern had 10–50% of their records overlapping areas of dryland salinity. Our findings demonstrate that landscape exposure to dryland salinity should be used in conjunction with total richness of threatened species for prioritizing conservation of geographical areas with respect to the potential impact of dryland salinity on threatened species.
    Type of Medium: Online Resource
    ISSN: 1442-7001 , 1442-8903
    URL: Article
    DOI: 10.1046/j.1442-8903.4.s.7.x
    Language: English
    Publisher: Wiley
    Publication Date: 2003
    detail.hit.zdb_id: 2020194-1
    detail.hit.zdb_id: 2279324-0
    SSG: 12
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Seasonal responses of xylem sap velocity to VPD and solar radiation during drought in a stand of native trees in temperate Australia
    CSIRO Publishing ; 2004
    In:  Functional Plant Biology Vol. 31, No. 5 ( 2004), p. 461-
    Details
    In: Functional Plant Biology, CSIRO Publishing, Vol. 31, No. 5 ( 2004), p. 461-
    Abstract: Xylem sap velocity of two dominant tree species, Eucalyptus crebra F. Muell. and Callitris glaucophylla J. Thompson & L.A.S. Johnson, in a native remnant forest of eastern Australia was measured in winter and summer during a prolonged ( 〉 12 months) and extensive drought. The influence of vapour pressure deficit (VPD) and solar radiation levels on the velocity of sap was determined. Pronounced hysteresis in sap velocity was observed in both species as a function of VPD and solar radiation. However, the rotation of the hysteresis curve was clockwise for the response of sap velocity to VPD but anti-clockwise in the response of sap velocity to radiation levels. A possible reason for this difference is discussed.The degree of hysteresis (area bounded by the curve) was larger for the VPD response than the response to solar radiation and also varied with season. A simple linear model was able to predict sap velocity from knowledge of VPD and solar radiation in winter and summer. The consistent presence of hysteresis in the response to sap velocity to VPD and solar radiation suggests that large temporal and spatial models of vegetation water use may require some provision for the different responses of sap velocity, and hence water use, to VPD and solar radiation, between morning and afternoon and between seasons.
    Type of Medium: Online Resource
    ISSN: 1445-4408
    URL: Article
    DOI: 10.1071/FP03220
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2004
    detail.hit.zdb_id: 2071582-1
    SSG: 12
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    Online Resource
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