Search Results - "Walker, B. H"

Resilience Thinking: Sustaining Ecosystems and People in a Changing World by Walker, Brian, Salt, David, Reid, Walter

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Biodiversity and Ecological Redundancy by WALKER, BRIAN H.

“…This paper addresses the problem of which biota to choose to best satisfy the conservation goals for a particular region in the face of inadequate resources…”
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An adaptive agent model for analysing co-evolution of management and policies in a complex rangeland system by Janssen, Marco A., Walker, Brian H., Langridge, Jenny, Abel, Nick

“…This paper describes an adaptive agent model of rangelands based on concepts of complex adaptive systems. The behavioural and biological processes of…”
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Global Biodiversity Scenarios for the Year 2100 by Sala, Osvaldo E., Chapin, F. Stuart, Armesto, Juan J., Berlow, Eric, Bloomfield, Janine, Dirzo, Rodolfo, Huber-Sanwald, Elisabeth, Huenneke, Laura F., Jackson, Robert B., Kinzig, Ann, Leemans, Rik, Lodge, David M., Mooney, Harold A., Oesterheld, Martín, Poff, N. LeRoy, Sykes, Martin T., Walker, Brian H., Walker, Marilyn, Wall, Diana H.

“…Scenarios of changes in biodiversity for the year 2100 can now be developed based on scenarios of changes in atmospheric carbon dioxide, climate, vegetation,…”
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Interactions of woody and herbaceous vegetation in a southern African savanna by Knoop, W.T, Walker, B.H

“…(1) A number of plots were set up in two natural savanna communities, with identical climates but different soils, to examine possible competition between the…”
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Biodiversity - Global biodiversity scenarios for the year 2100 by Sala, O E, Chapin, F S, Armesto, J J, Berlow, E, Bloomfield, J, Dirzo, R, Huber-Sanwald, E, Huenneke, L F, Jackson, R B, Kinzig, A, Leemans, R, Lodge, D M, Mooney, H A, Oesterheld, M, Poff, N L, Sykes, Martin, Walker, B H, Walker, M, Wall, D H

“…Scenarios of changes in biodiversity for the year 2100 can now be developed based on scenarios of changes in atmospheric carbon dioxide, climate, vegetation,…”
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Predicting savanna vegetation structure on the basis of plant available moisture (PAM) and plant available nutrients (PAN): a case study from Australia by Walker, Brian, Langridge, Jenny

“…The use of the plant available moisture (PAM)/ plant available nutrients (PAN) concept to compare savanna structure was examined using data from twenty…”
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A resilience perspective of the SEEA by Walker, B.H., Pearson, L.

“…While the SEEA is an important advance in national accounting it remains deficient in a number of ways in regard to natural resources. The dynamic and…”
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Resilience of an Australian savanna grassland to selective and non-selective perturbations by Walker, B.H, Langridge, J.L, McFarlane, F

“…Using a randomized experimental design, plots of a savanna grassland were subjected to two levels of grass tuft removal (50% and 90%) in two ways;…”
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Grazing Management, Resilience, and the Dynamics of a Fire-Driven Rangeland System by Anderies, John M., Janssen, Marco A., Walker, Brian H.

“…We developed a stylized mathematical model to explore the effects of physical, ecological, and economic factors on the resilience of a managed firedriven…”
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Conserving tropical nature: current challenges for ecologists by du Toit, Johan T., Walker, Brian H., Campbell, Bruce M.

“…Tropical biodiversity continues to erode unabated, which calls for ecologists to address the problem directly, placing less reliance on indirect interventions,…”
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To Cull or Not to Cull: Lessons from a Southern African Drought by Walker, B. H., Emslie, R. H., Owen-Smith, R. N., Scholes, R. J.

“…(1) The ecological consequences of a severe drought on four wildlife conservation areas in southern Africa (Tuli, Klaserie, Kruger, Umfolozi) are compared. (2)…”
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Biotic Control Over the Functioning of Ecosystems by Chapin, F. Stuart, Walker, Brian H., Hobbs, Richard J., Hooper, David U., Lawton, John H., Sala, Osvaldo E., Tilman, David

“…Changes in the abundance of species-especially those that influence water and nutrient dynamics, trophic interactions, or disturbance regime-affect the…”
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Robust strategies for managing rangelands with multiple stable attractors by Janssen, Marco A, Anderies, John M, Walker, Brian H

“…Savanna rangelands are characterized by dynamic interactions between grass, shrubs, fire and livestock driven by highly variable rainfall. When the livestock…”
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Critical Issues for Understanding Global Change Effects on Terrestrial Ecosystems by Ojima, D. S., Kittel, T. G. F., Rosswall, T., Walker, B. H.

“…Marked alterations in the Earth's environment have already been observed, and these presage even greater changes as the impact of human (i.e., land use and…”
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Ecological consequences of atmospheric and climate change by Walker, B H

“…The ecological effects of global climate change will depend on the rate of global warming vs. the rates of adaptation and dispersal of species and the…”
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Stability of Semi-Arid Savanna Grazing Systems by Walker, B. H., Ludwig, D., Holling, C. S., Peterman, R. M.

“…(1) Semi-arid savannas, wherever they occur, have generally been overgrazed and encroached on by bush. A model is developed which accounts for the growth of…”
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Global change strategy options in the extensive agriculture regions of the world by Walker, B.H. (Division of Wildlife and Ecology CSIRO, Canberra, A.C.T. (Australia))

“…Agricultural regions where there is little or no cultivation of crops for commercial purposes were assessed to determine what influence they have on…”
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Patterns of Shoot Growth in a Semi-Arid Grassland in Zimbabwe by Dye, P. J., Walker, B. H.

“…(1) Grass shoot yields in a semi-arid rangeland in south-western Zimbabwe were recorded over 5 years to observe patterns of growth in relation to the erratic…”
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Measuring Functional Diversity in Plant Communities with Mixed Life Forms: A Problem of Hard and Soft Attributes by Walker, Brian H., Langridge, Jenny L.

“…This paper examines the functional relationships among species in an Australian rangeland community with mixed life forms. It follows a previous study (Walker…”
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