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Volumn 312, Issue 5772, 2006, Pages 434-436

Stability via asynchrony in Drosophila metapopulations with low migration rates

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; DATA REDUCTION; MATHEMATICAL MODELS; POPULATION STATISTICS; RESEARCH LABORATORIES;

EID: 33645966787     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1125317     Document Type: Article
Times cited : (105)

References (32)
  • 8
    • 0034124680 scopus 로고    scopus 로고
    • J. Ripa, Oikos 89, 175 (2000).
    • (2000) Oikos , vol.89 , pp. 175
    • Ripa, J.1
  • 20
    • 33646001607 scopus 로고    scopus 로고
    • note
    • In the experiment, the nine subpopulations (single-vial Drosophila cultures) were arranged on the periphery of a circle, with each vial exchanging migrants only with its two nearest neighbors (i.e., a one-dimensional array with periodic boundary conditions). In nature, such metapopulations might exist, for example, on the shorelines of lakes or along the edges of ecosystems. The simulations mimicked the experimental system and focused on the behavior of nine coupled Ricker maps, with periodic boundary conditions. See supporting material on Science Online.
  • 22
    • 33645966685 scopus 로고    scopus 로고
    • note
    • t) where N̄ is the mean population size over T generations. FI thus reflects the mean one-step change in population size, scaled by average population size, over the study duration.
  • 25
    • 33645960004 scopus 로고    scopus 로고
    • note
    • In the experiment a subpopulation was deemed extinct when it did not contain at least one male and one female fly. When a CM subpopulation became extinct, it was restarted using four males and four females from a backup vial. The backup vials were maintained in parallel to the three treatments, under high larval crowding and yeast supplement to the adults. There were no restarts in LMMs or HMMs; extinct subpopulation vials remained empty until recolonized by migrants from a neighboring subpopulation.
  • 28
    • 33645979205 scopus 로고    scopus 로고
    • note
    • For example, in simulations with r = 2.8, comparable to the estimated r in our CM subpopulations, the mean extinction rate was 0.75 out of 9 subpopulations per generation, versus 3.35 out of 9 for experimental CMs.
  • 32
    • 33646002526 scopus 로고    scopus 로고
    • note
    • We thank V. K. Sharma for useful discussions; three anonymous reviewers for helpful comments on the manuscript; M. Shakarad, M. Rajamani, and N. Raghavendra for crucial help in fly handling; and J. Mohan, S. Ghosh, K. M. Satish, N. Rajanna, and M. Manjesh for help in diverse ways during the experiment. Supported by a senior research fellowship from the Council for Scientific and Industrial Research, Government of India (S.D.) and by grants from Department of Science and Technology, Government of India.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.