Interannual variability of NDVI and species richness in Kenya

References

• ADDS . 1999 . Africa Data Dissemination Service , SouthDakota : EROS Data Center, US Geological SurveySiouxFalls . US57198.http://edcsnw4.cr.usgs.gov/ adds/adds.html#adds_overview_anchor
   Google Scholar
• Anyamba , A. and Eastman , J. R. 1996 . Interannual variability of NDVI over Africa and its relation to El Nino/Southern Oscillation . International Journal of Remote Sensing , 17 : 2533 – 2548 .
   Web of Science ®Google Scholar
• Asrar , G. 1989 . Wiley Series in Remote Sensing, Theory and Applications of Optical Remote Sensing , New York : Wiley .
   Google Scholar
• Begon , M. , Harper , J. L. and Townsend , C. R. 1990 . Ecology. Individuals, Populations and Communities , Oxford : Blackwell Scientifc .
   Google Scholar
• Bohning-Gaese , K. 1997 . Determinants of avian species richness at diVerent spatial scales . Journal of Biogeography , 24 : 49 – 60 .
   Web of Science ®Google Scholar
• Box , E. O. , Holben , B. N. and Kalb , V. 1989 . Accuracy of the AVHRR Vegetation Index as a predictor of biomass, primary productivity and net CO2 ? ux . Vegetatio , 80 : 71 – 89 .
   Google Scholar
• Cihlar , J. , St. Laurent , L. and Dyer , J. A. 1991 . The relation between normalized diVerence vegetation index and ecological variables . Remote Sensing of Environment , 35 : 279 – 298 .
   Web of Science ®Google Scholar
• Cody , M. L. 1983 . “ Continental diversity patterns and convergent evolution in bird communities ” . In Mediterranean-type Ecosystems: The Role of Nutrients , Edited by: Kruger , F. J. , Mitchell , D. T. and Jarvis , J. U. M. 357 – 391 . Berlin : Springer-Verlag .
   Google Scholar
• Cowling , R. M. 1990 . Diversity components in a species-rich area of the Cape Floristic Region . Journal of Vegetation Science , 1 : 699 – 710 .
   Web of Science ®Google Scholar
• Diamond , J. 1988 . Factors controlling species diversity: overview and synthesis . Annals of the Missouri Botanical Garden , 75 : 117 – 129 .
   Web of Science ®Google Scholar
• Efron , B. and Tibshirani , R. J. 1998 . Monographs on Statistics and Applied Probability 57, An Introduction to the Bootstrap , London : Chapman & Hall/CRC .
   Google Scholar
• Griffin , G. F. and Friedal , M. H. 1985 . Discontinous change in central Australia: some major implications of ecological events for land management . Journal of Arid Environment , 9 : 63 – 82 .
   Web of Science ®Google Scholar
• Grime , J. P. 1979 . Plant Strategies and Vegetation Processes , New York : Wiley .
   Google Scholar
• Groombridge , B. 1992 . Status of the Earth's living resources. Global Biodiversity , London : World Conservation Monitoring Centre .
   Google Scholar
• Hobbs , R. J. 1990 . “ Remote sensing of spatial and temporal dynamics of vegetation ” . In Ecological Studies 79, Remote Sensing of Biosphere Functioning , Edited by: Hobbs , R. J. and Mooney , H. A. 203 – 219 . New York : Springer-Verlag .
   Google Scholar
• Holben , B. N. 1986 . Characteristics of maximum-value composite images for temporal AVHRR data . International Journal of Remote Sensing , 7 : 1435 – 1445 .
   Web of Science ®Google Scholar
• Huston , M. A. 1979 . A general hypothesis of species diversity . The American Naturalist , 113 : 81 – 101 .
   Web of Science ®Google Scholar
• Huston , M. A. 1994 . Biological Diversity. The coexistence of species on changing landscapes , Cambridge : Cambridge University Press .
   Google Scholar
• Justice , C. , Holben , B. N. and Gwynne , M.D. 1986 . Monitoring East African vegetation using AVHRR data . International Journal of Remote Sensing , 7 : 1453 – 1474 .
   Web of Science ®Google Scholar
• Kimes , D. S. , Holben , B. N. , Tucker , C. J. and Newcomb , W. W. 1984 . Optimal directional view angles for remote-sensing missions . International Journal of Remote Sensing , 5 : 887 – 908 .
   Web of Science ®Google Scholar
• Lewis , J. E. , Rowland , J. and Nadeau , A. 1998 . Estimating maize production in Kenya using NDVI: some statistical considerations . International Journal of Remote Sensing , 19 : 2609 – 2617 .
   Web of Science ®Google Scholar
• Los , S.O. 1998 . Linkages between global vegetation and climate. An analysis based on NOAA Advanced Very High Resolution Radiometer data , Report GSFC/CR-1998-206852 Greenbelt, Maryland , , USA : National Aeronautics and Space Administration, Goddard Space Flight Center .
   Google Scholar
• McIntyre , G. A. 1978 . “ Statistical aspects of vegetation sampling ” . In Measurement of Grassland Vegetation and Animal Production , Edited by: Mannetje , L.’t . 8 – 21 . Brisbane : Commonwealth Agricultural Bureax .
   Google Scholar
• McNeely , J. A. , Gadgil , M. , Leveque , C. , Padoch , C. and Redford , K. 1995 . “ Human in? uences on biodiversity ” . In Global Biodiversity Assessment , Edited by: Heywood , V. H. and Watson , R. T. 711 – 821 . Cambridge : Cambridge University Press .
   Google Scholar
• Newman , E. I. 1973 . Competition and diversity in herbaceous vegetation . Nature , 244 : 310 – 311 .
   Web of Science ®Google Scholar
• Norton-Griffiths , M. 1978 . Counting Animals, Handbook No.1, , 2nd edition , Nairobi : Africa Wildlife Leadership Foundation .
   Google Scholar
• Pfirman , E. , Hogue , J. and See , L. 1999 . Windisp3.5. Map and image display system version 990217 , UN Food and Agriculture Organization, USAID Famine Early Warning System, Southern Africa Development Community, US Forest Service and US Geological Survey .
   Google Scholar
• Pitt , M. D. and Heady , H. F. 1978 . Responses of annual vegetation to temperature and rainfall patterns in northern California . Ecology , 59 : 336 – 350 .
   Web of Science ®Google Scholar
• Podolsky , R. 1994 . Ecological hot spots. A method for estimating biodiversity directly from digital Earth imagery . Earth Observation Magazine , June : 30 – 36 .
   Google Scholar
• Pratt , D. J. and Gwynne , M. D. 1977 . Rangeland Management and Ecology in East Africa , London : Hodder and Stoughton .
   Google Scholar
• Prince , S. D. 1991 . Satellite remote sensing of primary production: comparison of results for Sahelian grasslands 1981-1988 . International Journal of Remote Sensing , 12 : 1301 – 1311 .
   Web of Science ®Google Scholar
• Prins , H. H. T. and OlV , H. 1998 . “ Species-richness of African grazer assemblages: towards a functional explanation ” . In Dynamics of Tropical Communities , Edited by: Newbery , D. M. , Prins , H. H. T. and Brown , N. D. 449 – 490 . Oxford : Blackwell Science .
   Google Scholar
• Richard , Y. and Poccard , I. 1998 . A statistical study of NDVI sensitivity to seasonal and interannual rainfall variations in Southern Africa . International Journal of Remote Sensing , 19 : 2907 – 2920 .
   Web of Science ®Google Scholar
• Rosenweig , M. L. and Abramsky , Z. 1993 . “ How are diversity and productivity related? ” . In Species Diversity in Ecological Communities. Historical and Geographical Perspectives , Edited by: Ricklefs , R. E. and Schluter , D. 52 – 65 . Chicago : University of Chicago Press .
   Google Scholar
• Sellers , P. J. 1989 . “ Vegetation-canopy spectral re? ectance and biophysical processes ” . In Theory and Applications of Optical Remote Sensing , Edited by: Asrar , G. 279 – 335 . New York : Wiley .
   Google Scholar
• Stoms , D. M. and Etes , J. E. 1993 . A remote sensing research agenda for mapping and monitoring biodiversity . International Journal of Remote Sensing , 14 : 1839 – 1860 .
   Web of Science ®Google Scholar
• Townshend , J. R. G. and Justice , C. O. 1986 . Analysis of the dynamics of African vegetation using NDVI . International Journal of Remote Sensing , 7 : 1435 – 1445 .
   Web of Science ®Google Scholar
• Tucker , C. J. 1979 . Red and photographic infrared linear combinations for monitoring vegetation . Remote Sensing of the Environment , 8 : 681 – 698 .
   Web of Science ®Google Scholar
• Tucker , C. J. and Sellers , P. J. 1986 . Satellite remote sensing of primary production . International Journal of Remote Sensing , 7 : 1133 – 1135 .
   Web of Science ®Google Scholar
• Tucker , C. J. , Justice , C. O. and Prince , S. D. 1986 . Monitoring the grasslands of the Sahel 1984-1985 . International Journal of Remote Sensing , 7 : 1715 – 1731 .
   Web of Science ®Google Scholar
• Walker , R. E. , Stoms , D. M. , Etes , J. E. and Cayocca , K. D. Relationships between biological diversity and multi-temporal vegetation index data in California . Technical Papers of the 1992 Annual Meeting of ASPRS/ACSM . March 3-7 1992 , Albuquerque , New Mexico . pp. 562 – 571 . Bethesda , MD : American Society for Photogrammetry and Remote Sensing .
   Google Scholar
• Wylie , B. K. , Harrington , J. A. Jr , Prince , S. D. and Denda , I. 1991 . Satellite and ground-based pasture production assessment in Niger: 1986-1988 . International Journal of Remote Sensing , 12 : 1281 – 1300 .
   Web of Science ®Google Scholar