Butterfly species richness is examined on simulated archipelagoes of 2, 3, 4 and 5 holm oak forest fragments in the Guadalajara Province (central Spain). It is shown that there are more species on several small ‘islands’ than on a single island. Also, species number increases with the number of fragments that form the archipelago, and with the average distance between islands within the archipelago. Thus, we conclude, at least for butterflies in a system of fragmented holm oak forests in central Iberia, that the best strategy in order to maximize the conservation of species richness is the creation of a net of some small and scattered reserves.
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References
Balleto, E. and Casale, A. (1991) Mediterranean insect conservation. In The Conservation of Insects and their Habitats (N.M. Collins and J.A. Thomas, eds.) pp. 121–42. London: Academic Press.
Baz, A. (1985) Ecología y faunística de las Mariposas de la comarca madrileña del rio Henares. Alcalá de Henares, Spain: M.Sc. thesis, Universidad de Alcalá.
Baz, A. and García-Boyero, A. (1995) The effects of forest fragmentation on butterfly communities in central Spain. J. Biogeogr. (in press).
Burkey, T.V. (1989) Extinction in nature reserves. The effect of fragmentation and the importance of migration between reserve fragments. Oikos 55, 75–81.
Dennis, R.L.H. and Williams, W.R. (1995) Implications of biogeographical structures for the conservation of European butterflies. In Ecology and Conservation of Butterflies (A.S. Pullin, ed.) pp. 213–29. London: Chapman & Hall.
Diamond, J.M. (1975) The island dilemma: Lessons of modern biogeographic studies for the design of natural reserves. Biol. Conserv. 7, 129–45.
Diamond, J.M. (1976) Island biogeography and conservation: Strategy and limitations. Science 193, 1027–9.
Fahrig, J. and Merriam, G. (1985) Habitat patch connectivity and population survival. Ecology 66, 1762–8.
Game, M. and Peterken, G.F. (1984) Nature reserve selection strategies in the woodland of central Lincolnshire, England. Biol. Conserv. 29, 137–81.
Gilpin, M.E. (1988) A comment on Quinn and Hastings: extinction in subdivided habitats. Conserv. Biol. 2, 290–2.
Hubbell, S.P. and Wright, S.J. (1983) Stochastic extinction and reserve size: a focal species approach. Oikos 41, 466–76.
Kudrna, O. (1986) Aspects of the conservation of Butterflies in Europe. In: Butterflies of Europe, vol. 8. (O. Kudrna, ed.). Aula-Verlag, Wiesbaden.
Jarvinen, O. (1982) Conservation of endangered plant populations: single large or several small reserves. Oikos 38, 301–7.
Lahti, T. and Ranta, E. (1985) The SLOSS principle and conservation practice: An example. Oikos 44, 369–70.
Lahti, T. and Ranta, E. (1986) Island biogeography and conservation: a reply to Murphy and Wilcox. Oikos 47, 388–9.
Margules, C.R., Higgs, A.J. and Rafe, R.E. (1982) Modern biogeographic theory: are there any lessons for nature reserve design? Biol. Conserv. 24, 115–28.
Munguira, M.L. (1995) Conservation of butterfly habitats and diversity in European Mediterranean countries. In Ecology and Conservation of Butterflies (A.S. Pullin, ed.) pp. 277–89. London: Chapman & Hall.
Murphy, D.D. and Wilcox, B.A. (1986) On island biogeography and conservation. Oikos 47, 385–7.
Pollard, E. (1977) A method for assessing changes in the abundance of butterflies. Biol. Conserv. 12, 115–34.
Simberloff, D. (1986) Design of nature reserves. In Wildlife Conservation Evaluation (M.B. Usher. ed.) pp. 315–37. London: Chapman & Hall.
Simberloff, D. and Abele, L.G. (1976) Island biogeography theory and conservation practice. Science 191, 285–6.
Simberloff, D. and Abele, L.G. (1982) Refuge design and island biogeography theory: Effects of fragmentation. Am. Nat. 120, 41–50.
Simberloff, D. and Abele, L.G. (1984) Conservation and obfuscation: subdivision of reserves. Oikos 42, 399–401.
Simberloff, D. and Gotelli, N. (1984) Effects of insularization on plant species richness in the prairie-forest ecotone. Biol. Conserv. 29, 27–46.
Spellerberg, I.F. (1991) Biogeographical basis of conservation. In The Scientific Management of Temperate Communities for Conservation (I.F. Spellerberg, F.B. Goldsmith and M.G. Morris, eds.) pp. 293–322. Oxford: Blackwell Scientific Publications.
Terborgh, J.W. (1976) Island biogeography and conservation: strategy and limitations. Science 193, 1029–30.
Viejo, J.L. (1984) Estudio faunístico de los ropalóceros del quejigar supramediterráneo de Madrid. SHILAP Rvta. Lep 12, 135–40.
Wilcox, B.A. and Murphy, D.D. (1985) Conservation strategy: the effects of fragmentation on extinction. Am Nat. 125, 879–87.
Wilson, E.O. and Willis, E.O. (1975) Applied biogeography. In Ecology and Evolution of Communities (M.L. Cody and J.M. Diamond, eds.) pp. 523–34. Cambridge, MS: Harvard University Press.
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Baz, A., Garcia-Boyero, A. The SLOSS dilemma: a butterfly case study. Biodivers Conserv 5, 493–502 (1996). https://doi.org/10.1007/BF00056393
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DOI: https://doi.org/10.1007/BF00056393