17 - Livestock and Engineering Network in the Israeli Negev: Implications for Ecosystem Management

This chapter introduces the concept of engineering network. This concept encompasses the web of interactions among processes at the landscape, ecosystem, and community levels, emerging from the activity of an assemblage of ecosystem engineers (EEs). The development of the concept is based on the accumulative knowledge of functioning of natural, multiple EEs in the Negev. The chapter further develops the EE network concept by constructing an integrated model that combines natural and domestic organisms. The chapter concludes by discussing the utility of the model for ecosystem management issues related to pastoralism and recreation. The various management options in the Negev are based on the optimization of the spatial ratio between the two patch types created by the principal EEs. In fact, the crux of the management in the Negev is the optimal landscape modulation according to desired exploitation.

[1]  O. Sala,et al.  A Generalized Model of the Effects of Grazing by Large Herbivores on Grassland Community Structure , 1988, The American Naturalist.

[2]  M. G. Wurtele,et al.  Progress in Desert Research , 1987 .

[3]  R. O'Neill,et al.  A revised concept of landscape equilibrium: Disturbance and stability on scaled landscapes , 1993, Landscape Ecology.

[4]  B. McKenzie,et al.  Grazing effects on soil physical properties and the consequences for pastures: a review , 2001 .

[5]  E. Zaady,et al.  Microphytic crusts, shrub patches and water harvesting in the Negev Desert: the Shikim system , 2002, Landscape Ecology.

[6]  M. Shachak,et al.  Patchiness and disturbance: plant community responses to porcupine diggings in the central Negev , 1995 .

[7]  B. Walker Management of semi-arid ecosystems , 1983, Vegetatio.

[8]  M. Crawley INSECT HERBIVORES AND PLANT POPULATION DYNAMICS , 1989 .

[9]  G. Lovett,et al.  ATMOSPHERIC DEPOSITION TO A DESERT ECOSYSTEM AND ITS IMPLICATIONS FOR MANAGEMENT , 1998 .

[10]  B. Boeken,et al.  The dynamics of abundance and incidence of annual plant species during colonization in a desert , 1998 .

[11]  F. Pugnaire,et al.  Mechanisms of interaction between a leguminous shrub and its understorey in a semi-arid environment , 1997 .

[12]  Allison Jones Effects of cattle grazing on North American arid ecosystems: a quantitative review , 2000 .

[13]  W. H. Blackburn Factors influencing infiltration and sediment production of semiarid rangelands in Nevada , 1975 .

[14]  P. U. Alkon Microhabitat to landscape impacts: crested porcupine digs in the Negev Desert highlands , 1999 .

[15]  M. Wood,et al.  Livestock grazing impacts on infiltration rates in a temperate range of Pakistan. , 1993 .

[16]  David J. Tongway,et al.  Spatial organisation of landscapes and its function in semi-arid woodlands, Australia , 1995, Landscape Ecology.

[17]  P. Groffman,et al.  Litter as a regulator of N and C dynamics in macrophytic patches in Negev desert soils , 1996 .

[18]  E. R. Fuls Ecosystem modification created by patch-overgrazing in semi-arid grassland , 1992 .

[19]  M H Andrew,et al.  Grazing impact in relation to livestock watering points. , 1988, Trends in ecology & evolution.

[20]  J. Lebreton,et al.  Predicting Demographic Change in Response to Herbivory: A Model of the Effects of Grazing and Annual Variation on the Population Dynamics of Anthyllis Vulneraria , 1995 .

[21]  Derek W. Bailey,et al.  Large Herbivore Foraging and Ecological HierarchiesLandscape ecology can enhance traditional foraging theory , 1987 .

[22]  J. Halvorson,et al.  Spatial relationships of soil microbial biomass and C and N Mineralization in a semi-arid shrub-steppe ecosystem , 1994 .

[23]  M. Shachak,et al.  Colonization by annual plants of an experimentally altered desert landscape: source—sink relationships , 1998 .

[24]  L. Oksanen,et al.  Natural grazing as a factor shaping out barren landscapes , 1989 .

[25]  M. Shachak,et al.  The role of animals in an arid ecosystem: snails and isopods as controllers of soil formation, erosion and desalinization. (Conference paper) , 1995 .

[26]  T. W. Hoekstra,et al.  Arid Lands Management: TOWARD ECOLOGICAL SUSTAINABILITY , 1999 .

[27]  I. Noy-Meir,et al.  Desert Ecosystems: Environment and Producers , 1973 .

[28]  N. West,et al.  Structure and Function of Microphytic Soil Crusts in Wildland Ecosystems of Arid to Semi-arid Regions , 1990 .

[29]  Moshe Shachak,et al.  Ecosystem Management of Desertified Shrublands in Israel , 1998, Ecosystems.

[30]  D. Patten,et al.  Productivity and flowering of winter ephemerals in relation to Sonoran Desert shrubs , 1975 .

[31]  A. Perevolotsky,et al.  Processes of Sedentarization and Nomadization in the History of Sinai and the Negev , 1990, Bulletin of the American Schools of Oriental Research.

[32]  N. West 12 – Spatial Pattern–Functional Interactions in Shrub-Dominated Plant Communities , 1989 .

[33]  D. W. Goodall,et al.  Hot deserts and arid shrublands, A. , 1987 .

[34]  M. Wood,et al.  Flash grazing and trampling: effects on infiltration rates and sediment yield on a selected New Mexico range site , 1989 .

[35]  N. West Nutrient Cycling in Desert Ecosystems , 1981 .

[36]  C Bozzi,et al.  Measurements of CP-violating asymmetries in B0-->K(0)(s)pi(0) decays. , 2004, Physical review letters.

[37]  D. Tongway,et al.  Influence of grazing management on vegetation, soil structure and nutrient distribution and the infiltration of applied rainfall in a semi-arid chenopod shrubland , 1986 .

[38]  F. Pugnaire,et al.  Facilitation and succession under the canopy of a leguminous shrub, Retama sphaerocarpa, in a semi-arid environment in south-east Spain , 1996 .

[39]  A. Cerda,et al.  The effect of grazing on soil and water losses under arid and mediterranean climates. Implications for desertification , 1999 .

[40]  A. Shmida,et al.  Hot desert ecosystems: an integrated view , 1986 .

[41]  I. Burke,et al.  Livestock Grazing: Animal and Plant Biodiversity of Shortgrass Steppe and the Relationship to Ecosystem Function , 1998 .

[42]  D. Cole TRAMPLING DISTURBANCE AND RECOVERY OF CRYPTOGAMIC SOIL CRUSTS IN GRAND CANYON NATIONAL PARK , 1990 .

[43]  E. Meron,et al.  Ecosystem engineers: from pattern formation to habitat creation. , 2004, Physical review letters.

[44]  M. Saleem,et al.  Hydrologic response to cattle grazing in the Ethiopian highlands , 1997 .

[45]  Steward T. A. Pickett,et al.  Biodiversity in drylands : toward a unified framework , 2004 .

[46]  Y. Osem,et al.  Site productivity and plant size explain the response of annual species to grazing exclusion in a Mediterranean semi‐arid rangeland , 2004 .

[47]  D. Eldridge,et al.  Microbiotic soil crusts: a review of their roles in soil and ecological processes in the rangelands of Australia , 1994 .

[48]  E. Zaady,et al.  The Effects of Grazing on Abiotic and Biotic Parameters in a Semiarid Ecosystem: A Case Study from the Northern Negev Desert, Israel , 2001 .

[49]  A. Perevolotsky,et al.  Role of Grazing in Mediterranean Rangeland Ecosystems Inversion of a paradigm , 1998 .

[50]  A. Perevolotsky,et al.  ENVIRONMENTAL ADAPTATION AND ECONOMIC CHANGE IN A PASTORAL MOUNTAIN SOCIETY: THE CASE OF THE JABALIYAH BEDOUIN OF THE MT. SINAI REGION , 1989 .

[51]  D. W. Goodall,et al.  Arid Land Ecosystems: Structure, Functioning and Management, Volume 2. , 1982 .

[52]  Fabian M Jaksic,et al.  Spatial distribution of soil nutrients and ephemeral plants underneath and outside the canopy of Porlieria chilensis shrubs (Zygophyllaceae) in arid coastal Chile , 1993, Oecologia.

[53]  J. Eastham,et al.  The effect of sheep trampling and grazing on soil physical properties and pasture growth for a red-brown earth , 1993 .

[54]  Justin P. Wright,et al.  The Concept of Organisms as Ecosystem Engineers Ten Years On: Progress, Limitations, and Challenges , 2006 .

[55]  J. López‐Portillo,et al.  Water Flows and the Dynamics of Desert Vegetation Stripes , 1992 .

[56]  Yagil Osem,et al.  Grazing effect on diversity of annual plant communities in a semi‐arid rangeland: interactions with small‐scale spatial and temporal variation in primary productivity , 2002 .

[57]  I. Burke Control of Nitrogen Mineralization a Sagebrush Steppe Landscape , 1989 .

[58]  H. Olff,et al.  Effects of herbivores on grassland plant diversity. , 1998, Trends in ecology & evolution.

[59]  C. Mckell The Biology and utilization of shrubs , 1989 .

[60]  R. H. Hart,et al.  Soil and vegetation responses to simulated trampling. , 1987 .

[61]  M. Shachak,et al.  Integration of ecosystem engineering and trophic effects of herbivores , 2001 .

[62]  W. Whitford,et al.  The influence of subterranean termites on the hydrological characteristics of a Chihuahuan desert ecosystem , 1986, Oecologia.

[63]  A. Mccomb,et al.  Patterns in Annual Vegetation and Soil Microrelief in an Arid Region of Western Australia , 1974 .

[64]  N. Seligman,et al.  Management of Semi-Arid Ecosystems in Israel , 1979 .