Metapopulation

Origins and the Levins model

Andrewartha and Birch (1954) noted that local populations frequently disappear and reappear, and Huffaker's (1958) mite experiments showed that spatial structure helps predator–prey systems persist. While studying pest control, Richard Levins (1969, 1970) formalized these ideas mathematically and coined the term metapopulation. The Levins model holds that the fraction of identical habitat patches occupied is set by the balance between the rate of colonization and the rate of local extinction. If colonization is sufficiently higher than extinction, the system persists even as individual populations vanish, with equilibrium occupancy equal to 1 − (extinction rate / colonization rate). The model can be seen as translating the colonization and extinction of many species in island biogeography (MacArthur and Wilson, 1967) to the population level of a single species.

Hanski's work and types of structure

Ilkka Hanski (1994) developed the incidence function model, adding realistic features: larger patches have lower extinction risk and less isolated patches higher colonization probability. Through long-term surveys of the Glanville fritillary butterfly across some 4,000 meadow patches in the Åland Islands of Finland, he documented metapopulation dynamics empirically (Hanski et al., 1995; Hanski, 1998). Brown and Kodric-Brown (1977) proposed the rescue effect, in which immigrants prevent the extinction of small populations. Harrison (1991) showed that real systems vary: besides the Levins type, there are mainland–island systems in which a large population supplies smaller ones, patchy populations so well connected they function as one, and nonequilibrium systems of isolated populations.

Conservation and extensions

Metapopulation theory became central to research on habitat fragmentation. Tilman et al. (1994) modeled extinction debt, in which extinctions follow habitat destruction not immediately but with a time lag, and Hanski and Ovaskainen (2000) proposed the metapopulation capacity of a landscape as a measure of how well it can sustain a species. This work informs reserve design, wildlife corridors and priorities for habitat restoration. Leibold et al. (2004) extended the concept to multispecies communities in the metacommunity framework. Together with concepts such as keystone species and the ideal free distribution, the metapopulation perspective is a foundation for understanding how space shapes ecological processes.

FAQ

What is a metapopulation in simple terms?

It is a population of populations: small populations scattered across separate patches and linked by movement, so that when some disappear others refill them and the whole persists.

What is extinction debt?

It is the delayed extinction that follows habitat destruction: species remain for a while but can no longer persist in the long run, so losses appear only over time.

Sources reviewed: 2026-10-26

References

1. Andrewartha, H. G., & Birch, L. C. (1954). The Distribution and Abundance of Animals. Chicago: University of Chicago Press.
2. Levins, R. (1969). Some demographic and genetic consequences of environmental heterogeneity for biological control. Bulletin of the Entomological Society of America, 15(3), 237–240.
3. Levins, R. (1970). Extinction. In M. Gerstenhaber (Ed.), Some Mathematical Questions in Biology (pp. 77–107). Providence, RI: American Mathematical Society.
4. MacArthur, R. H., & Wilson, E. O. (1967). The Theory of Island Biogeography. Princeton: Princeton University Press.
5. Huffaker, C. B. (1958). Experimental studies on predation: Dispersion factors and predator-prey oscillations. Hilgardia, 27(14), 343–383.
6. Brown, J. H., & Kodric-Brown, A. (1977). Turnover rates in insular biogeography: Effect of immigration on extinction. Ecology, 58(2), 445–449.
7. Harrison, S. (1991). Local extinction in a metapopulation context: An empirical evaluation. Biological Journal of the Linnean Society, 42(1–2), 73–88.
8. Hanski, I. (1994). A practical model of metapopulation dynamics. Journal of Animal Ecology, 63(1), 151–162.
9. Hanski, I., Pakkala, T., Kuussaari, M., & Lei, G. (1995). Metapopulation persistence of an endangered butterfly in a fragmented landscape. Oikos, 72(1), 21–28.
10. Hanski, I. (1998). Metapopulation dynamics. Nature, 396(6706), 41–49.
11. Hanski, I., & Ovaskainen, O. (2000). The metapopulation capacity of a fragmented landscape. Nature, 404(6779), 755–758.
12. Leibold, M. A., Holyoak, M., Mouquet, N., et al. (2004). The metacommunity concept: A framework for multi-scale community ecology. Ecology Letters, 7(7), 601–613.
13. Tilman, D., May, R. M., Lehman, C. L., & Nowak, M. A. (1994). Habitat destruction and the extinction debt. Nature, 371(6492), 65–66.