Anadón, J. D., Sánchez-Zapata, J. A., Carrete, M., Donázar, J. A. & Hiraldo, F. (2010) Large-scale human effects on an arid African raptor community. Anim.Conserv.
Benjaminsen, T. A. (2001) The population-agriculture nexus in the Malian cotton zone. Global Environ. Change
Boano, G., Bonardi, A. and Silvano, F. (2004) Nightingale Luscinia megarhynchos survival rates in relation to Sahel rainfall. Avocetta
Brink, A. B. and Eva, H. D. (2009) Monitoring land cover change dynamics in Africa: a sample-based remote sensing approach. Applied Geogr.
Browne, S. and Aebischer, N. J. (2004) Temporal changes in the breeding ecology of European Turtle Doves Streptopelia turtur in Britain, and implications for conservation. Ibis
Clerici, N., Bodini, A., Eva, H. D., Grégoire, J-M., Dulieu, D. and Paolini, C. (2006) Increased isolation of two biosphere reserves and surrounding protected areas (WAP Ecological Complex, West Africa). J. Nature Conserv.
Cole, M. (1986) The savannas: biogeography and geobotany.
London: Academic Press.
Almaraz, P., Carrete, M., Sánchez-Zapata, J. A., Delgado, A., Hiraldo, F. & Donázar, J. A. (2011) Spatial heterogeneity in resource distribution promotes facultative sociality in two trans-Saharan migratory birds. PLoS ONE 6: .
Cour, J. M. (2001) The Sahel in West Africa: countries in transition to a full market economy. Global Environmental Change
1978-1994) Handbook of the birds of Europe, the Middle East and North Africa: the birds of the Western Palearctic: Volumes 1-9.
Oxford: Oxford University Press.
Cresswell, W., Wilson, J. M., Vickery, J. A., Jones, P. and Holt, S. (2007) Changes in the densities of Sahelian birds species in response to recent habitat degradation. Ostrich
Di Gregorio, A. and Jansen, L. J. M. (2000) Land Cover Classification System (LCCS): Classification concepts and user manual. Rome: FAO/UNEP/Cooperazione Italiana.
Gautier, D., Bonnerat, A. and Njoya, A. (2005) The relationship between herders and trees in space and time in northern Cameroon. Geogr. J.
Geomatics International (1998) .
Gilroy, J. J., Anderson, G. Q. A., Grice, P. V., Vickery, J. A., Sutherland, W. J. (2010) Mid-season shifts in the habitat associations of Yellow Wagtails Motacilla flava breeding in arable farmland. Ibis
Gonzalez, P. (2001) Desertification and a shift of forest species in the West African Sahel. Climate Res. 17: 217–228.
Green, R. E., Cornell, S. J., Scharlemann, J. P. W., Balmford, A. (2005) Farming and the fate of wild nature. Science
Grimmett, R. F. A. (1987) A review of the problems affecting Palearctic migratory birds in Africa. Cambridge: International Council for Bird Preservation.
Grist, J. P. and Nicholson, S. E. (2001) A study of the dynamic factors influencing the rainfall variability in the West African Sahel. J. Climate
Hahn, S., Bauer, S., Liechti, F. (2009) The natural link between Europe and Africa – 2.1 billion birds on migration. Oikos
Herrmann, S. M. and Tappan, G. G. (2013) Vegetation impoverishment despite greening: a case study from central Senegal. J. Arid Environ.
Hewson, C. M. and Noble, D. G. (2009) Population trends of breeding birds in British woodlands over a 32-year period: relationships with food, habitat use and migratory behaviour. Ibis
Jones, P. (1995) Migration strategies of Palaearctic passerines in Africa. Israel J. Zool.
Jones, P., Vickery, J. A., Holt, S. and Cresswell, W. (1996) A preliminary assessment of some factors influencing the density and distribution of Palearctic passerine migrants wintering in the Sahel zone of West Africa. Bird Study
Lack, P. (1990) Palaearctic-African systems. Pp. 345–356, in Keast, A., ed. Biogeography and ecology of forest bird communities. The Hague: SPB Academic Publishing bv.
Mayaux, P., Bartholomé, E., Fritz, S. and Belward, A. (2004) A new land-cover map of Africa for the year 2000. J. Biogeogr.
Morel, G. J. and Betlem, J. (1992) The use of Acacia nilotica riverine forests of Senegal by birds, particularly Palearctic migrants. Proceedings of the VII Pan-African Ornithological Congress: 495–502.
Morel, G. J. and Morel, M. Y. (1992) Habitat use by Palaearctic migrant passerine birds in West Africa. Ibis
Mortimore, M., Harris, F. M. A. and Turner, B. (1999) Implications of land use change for the production of plant biomass in densely populated Sahelo-Sudanian shrublands of north-east Nigeria. Global Ecol. Biogeogr.
Mortimore, M. J. and Harris, F. M. A. (2005) Do small farmers’ achievements contradict the nutrient depletion scenarios for Africa?
Land Use Policy
Mortimore, M. J. (1998) Roots in the African dust: sustaining the subSaharan African drylands. Cambridge, UK: Cambridge University Press.
Mortimore, M. J. (2005) The Global Drylands Imperative: achieving the Millennium Development Goals in the drylands of the world. Nairobi, Kenya: .
Nevoux, M., Barbraud, J. C. and Barbraud, C. (2008) Nonlinear impact of climate on survival in a migratory white stork population. J. Anim. Ecol.
Newton, I. (2004) The recent declines of farmland bird populations in Britain: an appraisal of causal factors and conservation actions. Ibis
Ockendon, N., Hewson, C. M., Johnston, A. and Atkinson, P. W. (2012) Declines in British-breeding populations of Afro-Palaearctic migrant birds are linked to bioclimatic wintering zone in Africa, possibly via constraints on arrival time advancement. Bird Study
Olsson, L., Eklundh, L. and Ardo, J. (2005) A recent greening of the Sahel—trends, patterns and potential causes. J. Arid Environ.
Rasmussen, K., Fog, B. and Madsen, J. E. (2001) Desertification in reverse? Observations from northern Burkina Faso. Global Environ
Risely, K., Renwick, A. R., Dadam, D., Eaton, M. A., Johnston, A., Baillie, S. R., Musgrove, A. J. and Noble, D. G. (2011) The Breeding Bird Survey 2010. BTO Research Report 597. Thetford, UK:
Robson, D. and Barriocanal, C. (2011) Ecological conditions in wintering and passage areas as determinants of timing of spring migration in trans-Saharan migratory birds. J. Anim. Ecol.
Royal Society (2009) Reaping the benefits. London: Royal Society.
Ruelland, D., Levavasseur, F. and Tribotte, A. (2010) Patterns and dynamics of land-cover changes since the 1960s over three experimental areas in Mali. Internatn. J. Appl. Earth Observation and Geoinformation
12(Suppl. 1): S11–S17.
Sanderson, F. J., Donald, P. F., Pain, D. J., Burfield, I. J. and van Bommel, F. P. J. (2006) Long-term population declines in Afro-Palearctic migrant birds. Biol. Conserv.
Seoane, J., Bustamante, J. and Díaz-Delgado, R. (2005) Effect of expert opinion on the predictive ability of environmental models of bird distribution. Conserv. Biol.
Sutherland, W. J., Fleishman, E., Mascia, M. B., Pretty, J. and Rudd, M. A. (2011) Methods for collaboratively identifying research priorities and emerging issues in science and policy. Meth. Ecol. Evol.
Tappan, G. G., Hadj, A., Wood, E. C. and Lietzow, R. W. (2000) Use of Argon, Corona, and Landsat imagery to assess 30 years of land resource changes in west-central Senegal. Photogrammetric Engineering and Remote Sensing
Tappan, G. G., Sall, M., Wood, E. C. and Cushing, M. (2004) Ecoregions and land cover trends in Senegal. J. Arid Environ.
Tappan, G. and McGahuey, M. (2007) Tracking environmental dynamics and agricultural intensification in southern Mali. Agricult. Syst.
Tilman, D., Fargione, J. and Wolff, B. (2001) Forecasting agriculturally driven global environmental change. Science
Vickery, J., Rowcliffe, M., Cresswell, W., Jones, P. J. and Holt, S. (1999) Habitat selection by Whitethroats Sylvia communis during spring passage in the Sahel zone of northern Nigeria. Bird Study
Walther, G-R., Post, E., Convey, P., Menzel, A., Parmesan, C., Beebee, T. J. C., Fromentin, J.-M., Hoegh-Guldberg, O. and Bairlein, F. (2002) Ecological responses to recent climate change. Nature
Wilson, J. M. and Cresswell, W. (2006) How robust are Palearctic migrants to habitat loss and degradation in the Sahel?
Winstanley, D., Spencer, R. and Williams, K. (1974) Where have all the Whitethroats gone?
Zwarts, L., Bijlsma, R. G., Kamp, J. van der and Wymenga, E. (2009) Living on the edge: wetlands and birds in a changing Sahel. Zeist: KNNV Publishing.