When can competition and dispersal lead to checkerboard distributions?
نویسندگان
چکیده
منابع مشابه
When can competition for resources lead to ecological equivalence?
Question: Under what conditions do species using distinct niches evolve and converge to become ecologically equivalent? Does evolution in a community context affect functional group diversity? Mathematical methods: We simulated the population dynamics and evolution of multiple species competing for discrete, substitutable resources. Key assumptions: Species’ competitive effect and response are ...
متن کاملWhen can dispersal synchronize populations?
While spatial synchrony of oscillating populations has been observed in many ecological systems, the causes of this phenomenon are still not well understood. The most common explanations have been the Moran effect (synchronous external stochastic influences) and the effect of dispersal among populations. Since ecological systems are typically subject to large spatially varying perturbations whi...
متن کاملWhen Does Competition Lead to E¢cient Investments?
The paper studies agents’ investment decisions between general and speci...c investments under di¤erent ownership structures in a thin, decentralized market where each agent’s decision a¤ects the decisions and welfare of other (otherwise unrelated) agents mainly through indirect market linkages. The paper demonstrates that “excess competition among investors,” in every equilibrium, will lead to...
متن کاملPnm-12: Can Stress Lead to Infertility?
Background: The role that stress plays in infertility remains controversial and despite medical advances a large percentage of infertility remains unexplained. Clinicians and researchers consistently report that infertile women view infertility and its treatment as extremely stressful. Basic science has elucidated the linkages between the hypothalamic-pituitary axis (HPA) and hypothalamic-pitui...
متن کاملWhen Can Social Media Lead Financial Markets?
Social media analytics is showing promise for the prediction of financial markets. However, the true value of such data for trading is unclear due to a lack of consensus on which instruments can be predicted and how. Current approaches are based on the evaluation of message volumes and are typically assessed via retrospective (ex-post facto) evaluation of trading strategy returns. In this paper...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Animal Ecology
سال: 2018
ISSN: 0021-8790,1365-2656
DOI: 10.1111/1365-2656.12913