منابع مشابه
Differential Survival between Visual Environments Supports a Role of Divergent Sensory Drive in Cichlid Fish Speciation.
Identifying the selective forces that initiate ecological speciation is a major challenge in evolutionary biology. Sensory drive has been implicated in speciation in various taxa, largely based on phenotype-environment correlations and signatures of selection in sensory genes. Here, we present a reciprocal transplant experiment revealing species differences in performance in alternative visual ...
متن کاملVisualising Speciation in Models of Cichlid Fish
An Agent-Based model of speciation in cichlid fish has been implemented. When run, this generates large amounts of trace data in which speciation is an implicit, near unobservable, processes. Fuzzy C-Means Clustering is used to identify species extant at the end of simulation, and the power set of these species is the potential set of ancestral species. Membership values for all fish in each of...
متن کاملAn Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes
Although the cichlids of Lake Malawi are an important model system for the study of sensory evolution and sexual selection, the evolutionary processes linking these two phenomena remain unclear. Prior works have proposed that evolutionary divergence is driven by sensory drive, particularly as it applies to the visual system. While evidence suggests that sensory drive has played a role in the sp...
متن کاملThe Midas cichlid species complex: incipient sympatric speciation in Nicaraguan cichlid fishes?
Abstract Sympatric speciation is a contentious concept, although theoretical models as well as empirical evidence support its relevance in evolutionary biology. The Midas cichlid species complex (Amphilophus citrinellus, labiatus, zaliosus) from several crater lakes in Nicaragua fits several of the key characteristics of a sympatric speciation model. In particular, in A. citrinellus (i) strong ...
متن کاملMulti-Agent Simulations of Evolution and Speciation in Cichlid Fish
An agent-based simulation has been built to model speciation in cichlid fishes in the Great Lakes of Africa. A real natural system has been chosen as the target of simulation, rather than a generalised system. This focusses research towards open problems in cichlid biology, and provides a library of field research to drive the design and parametrisation of the simulation. Visualisations of the ...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 2006
ISSN: 0003-0147,1537-5323
DOI: 10.1086/503532