caa a22 4500 469098023 CHVBK 20180323133036.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF00317798 doi (NATIONALLICENCE)springer-10.1007/BF00317798 An underground index of rangeland degradation: cicadas in arid southern Africa [Elektronische Daten] [Suzanne Milton, W. Dean] Summary: The prediction that density of long-lived, underground herbivores (Cicadidae) is a function of rangeland condition was examined in arid shrublands in the Karoo, South Africa. It was found that the density of adult cicadas was correlated with cover of deep-rooted, perennial plants. Differences in perennial plant cover were independent of soil type and rock cover. On degraded rangelands, where perennial plants had been replaced by ephemerals and short-lived plants, cicada densities were significantly depressed. We concluded that vegetation transformation by domestic livestock is likely to affect invertebrate populations and their vertebrate predators. Springer-Verlag, 1992 Amensalism nationallicence Herbivory nationallicence Homoptera nationallicence Karoo nationallicence Vegetation change nationallicence Milton Suzanne FitzPatrick Institute, University of Cape Town, 7700, Rondebosch, South Africa aut Dean W. FitzPatrick Institute, University of Cape Town, 7700, Rondebosch, South Africa aut Oecologia Springer-Verlag 91/2(1992-08-01), 288-291 0029-8549 91:2<288 1992 91 442 https://doi.org/10.1007/BF00317798 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317798 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Milton Suzanne FitzPatrick Institute, University of Cape Town, 7700, Rondebosch, South Africa aut NATIONALLICENCE 700 1- Dean W. FitzPatrick Institute, University of Cape Town, 7700, Rondebosch, South Africa aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 91/2(1992-08-01), 288-291 0029-8549 91:2<288 1992 91 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer