Local speciation can be incorporated into neutral theory of biodiversity
نویسندگان
چکیده
منابع مشابه
Protracted speciation revitalizes the neutral theory of biodiversity.
Understanding the maintenance and origin of biodiversity is a formidable task, yet many ubiquitous ecological patterns are predicted by a surprisingly simple and widely studied neutral model that ignores functional differences between species. However, this model assumes that new species arise instantaneously as singletons and consequently makes unrealistic predictions about species lifetimes, ...
متن کاملWhen can ecological speciation be detected with neutral loci?
It is not yet clear under what conditions empirical studies can reliably detect progress toward ecological speciation through the analysis of allelic variation at neutral loci. We use a simulation approach to investigate the range of parameter space under which such detection is, and is not, likely. We specifically test for the conditions under which divergent natural selection can cause a 'gen...
متن کاملNon-neutral theory of biodiversity
We present a non-neutral stochastic model for the dynamics taking place in a metacommunity ecosystems in presence of migration. The model provides a framework for describing the emergence of multiple ecological scenarios and behaves in two extreme limits either as the unified neutral theory of biodiversity or as the Bak-Sneppen model. Interestingly, the model shows a condensation phase transiti...
متن کاملComment on "Neutral ecological theory reveals isolation and rapid speciation in a biodiversity hot spot".
Latimer et al. (Reports, 9 September 2005, p. 1722) used an approximate likelihood function to estimate parameters of Hubbell's neutral model of biodiversity. Reanalysis with the exact likelihood not only yields different estimates but also shows that two similar likelihood maxima for very different parameter combinations can occur. This reveals a limitation of using species abundance data to g...
متن کاملNeutral ecological theory reveals isolation and rapid speciation in a biodiversity hot spot.
South Africa's Mediterranean-climate fynbos shrubland is a hot spot of species diversity, but its diversity patterns contrast strongly with other high-diversity areas, including the Amazon rain forest. With its extremely high levels of endemism and species turnover, fynbos is made up of dissimilar local communities that are species-rich but relatively poor in rare species. Using neutral ecologi...
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: Ecological Modelling
سال: 2016
ISSN: 0304-3800
DOI: 10.1016/j.ecolmodel.2016.01.008