-
1
-
-
0025552969
-
-
B. L. Turner II et al., Eds. (Cambridge Univ. Press, Cambridge, UK)
-
J. F. Richards, in The Earth as Transformed by Human Action, B. L. Turner II et al., Eds. (Cambridge Univ. Press, Cambridge, UK, 1990), pp. 163-178.
-
(1990)
The Earth as Transformed by Human Action
, pp. 163-178
-
-
Richards, J.F.1
-
2
-
-
0003698981
-
-
Food and Agricultural Organisation of the United Nations, Rome
-
FAOSTAT, FAO Statistical Databases (Food and Agricultural Organisation of the United Nations, Rome, 2001).
-
(2001)
FAO Statistical Databases
-
-
-
3
-
-
12844270790
-
-
Note
-
Materials and methods are available as supporting material on Science Online.
-
-
-
-
5
-
-
0035853540
-
-
D. Tilman et al., Science 292, 281 (2001).
-
(2001)
Science
, vol.292
, pp. 281
-
-
Tilman, D.1
-
6
-
-
0037043689
-
-
D. Tilman, K. G. Cassman, P. A. Matson, R. Naylor, S. Polasky, Nature 418, 671 (2002).
-
(2002)
Nature
, vol.418
, pp. 671
-
-
Tilman, D.1
Cassman, K.G.2
Matson, P.A.3
Naylor, R.4
Polasky, S.5
-
8
-
-
0038301577
-
-
UNPD, New York
-
United Nations Population Division, World Population Prospects; The 2002 Revision Heights (UNPD, New York, 2003), available at www.un.org/esa/population/ publications/wpp2002/WPP2002-HIGHLIGHTSrev1.PDF.
-
(2003)
World Population Prospects; The 2002 Revision Heights
-
-
-
12
-
-
0003570006
-
-
WWF, Gland, Switzerland
-
J. Loh et al., Living Planet Report 2002 (WWF, Gland, Switzerland, 2002), available at www.panda.org/ downloads/general/LPR_2002.pdf.
-
(2002)
Living Planet Report 2002
-
-
Loh, J.1
-
16
-
-
0031726946
-
-
A. Estrada, R. Coates-Estrada, A. A. Dadda, P. Cammarano, J. Trop. Ecol. 14, 577 (1998).
-
(1998)
J. Trop. Ecol.
, vol.14
, pp. 577
-
-
Estrada, A.1
Coates-Estrada, R.2
Dadda, A.A.3
Cammarano, P.4
-
18
-
-
18044402766
-
-
G. C. Daily, Nature 411, 245 (2001).
-
(2001)
Nature
, vol.411
, pp. 245
-
-
Daily, G.C.1
-
21
-
-
0033549823
-
-
J. R. Krebs, J. D. Wilson, R. B. Bradbury, G. M. Siriwardena, Nature 400, 611 (1999).
-
(1999)
Nature
, vol.400
, pp. 611
-
-
Krebs, J.R.1
Wilson, J.D.2
Bradbury, R.B.3
Siriwardena, G.M.4
-
23
-
-
0003479453
-
-
Environmental Assessment Report No. 9 (Office for Official Publications of the European Communities, Copenhagen, Denmark)
-
European Environment Agency, Environmental Signals 2002, Benchmarking the Millennium, Environmental Assessment Report No. 9 (Office for Official Publications of the European Communities, Copenhagen, Denmark, 2002) available at http://reports.eea.eu.int/environmental_ assessment_report_2002_9/en/ sig02LOW.pdf.
-
(2002)
Environmental Signals 2002, Benchmarking the Millennium
-
-
-
27
-
-
0002948011
-
-
K. Brown, D. W. Pearce, Eds. (UCL Press, London)
-
D. Southgate, in The Causes of Tropical Deforestation: the Economic and Statistical Analysis of Factors Giving Rise to the Loss of Tropical Forests, K. Brown, D. W. Pearce, Eds. (UCL Press, London, 1994), pp. 134-143.
-
(1994)
The Causes of Tropical Deforestation: The Economic and Statistical Analysis of Factors Giving Rise to the Loss of Tropical Forests
, pp. 134-143
-
-
Southgate, D.1
-
31
-
-
0012521290
-
-
D. R. Lee, C. B. Barrett, Eds. (CABI, Wallingford, UK)
-
A. Angelsen, D. Kaimowitz, in Tradeoffs or Synergies? Agricultural Intensification, Economic Development and the Environment D. R. Lee, C. B. Barrett, Eds. (CABI, Wallingford, UK, 2001), pp. 89-114.
-
(2001)
Tradeoffs or Synergies? Agricultural Intensification, Economic Development and the Environment
, pp. 89-114
-
-
Angelsen, A.1
Kaimowitz, D.2
-
32
-
-
0012522368
-
-
CABI, Wallingford, UK
-
D. R. Lee, C. B. Barrett, Eds., Tradeoffs or Synergies? Agricultural Intensification, Economic Development and the Environment (CABI, Wallingford, UK, 2001).
-
(2001)
Tradeoffs or Synergies? Agricultural Intensification, Economic Development and the Environment
-
-
Lee, D.R.1
Barrett, C.B.2
-
34
-
-
12844275571
-
-
Cato Institute, Washington, DC
-
I. M. Goklany, M. W. Sprague, Sustaining Development and Biodiversity: Productivity, Efficiency and Conservation (Cato Institute, Washington, DC, 1992).
-
(1992)
Sustaining Development and Biodiversity: Productivity, Efficiency and Conservation
-
-
Goklany, I.M.1
Sprague, M.W.2
-
36
-
-
1542329839
-
-
C. D. Thomas et al., Nature 427, 145 (2004).
-
(2004)
Nature
, vol.427
, pp. 145
-
-
Thomas, C.D.1
-
38
-
-
5444248349
-
-
F. P. C. B. Barrett. A. A. Aboud. Eds. (CABI, Wallingford, UK)
-
M. S. Freudenberger, K. S. Freudenberger, in Natural Resources Management in African Agriculture: Understanding and Improving Current Practices, F. P. C. B. Barrett. A. A. Aboud. Eds. (CABI, Wallingford, UK, 2002), pp. 181-192.
-
(2002)
Natural Resources Management in African Agriculture: Understanding and Improving Current Practices
, pp. 181-192
-
-
Freudenberger, M.S.1
Freudenberger, K.S.2
-
42
-
-
0034989391
-
-
M. Avery, Ecos 22, 3 (2001).
-
(2001)
Ecos
, vol.22
, pp. 3
-
-
Avery, M.1
-
44
-
-
12844252186
-
-
Note
-
We thank M. Avery, J. Brashares, T. Brooks, G. Daily, D. Gibbons, and B. Grenfell for discussion and A. Stattersfield, M. Sneary, and M. Batman for access to the World Bird Database. S.J.C. acknowledges funding from the Wellcome Trust.
-
-
-
|