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Hybridization and speciation
A perspective on the context and evolutionary significance of hybridization during speciation is offered, highlighting issues of current interest and debate and suggesting that the Dobzhansky–Muller model of hybrid incompatibilities requires a broader interpretation. Expand
The evolution of mate choice and the potential for conflict between species and mate–quality recognition
  • K. Pfennig
  • Biology
  • Proceedings of the Royal Society of London…
  • 22 September 1998
When a conflict may occur between species and mate–quality recognition is suggested, the evolutionary consequences stemming from this conflict are discussed, and a model of mate–preference evolution in response to heterospecifics is presented. Expand
Character Displacement: Ecological And Reproductive Responses To A Common Evolutionary Problem
Understanding how organisms respond to competitive and reproductive interactions with heterospecifics offers key insights into the evolutionary causes and consequences of species coexistence and diversification. Expand
Facultative Mate Choice Drives Adaptive Hybridization
Female spadefoot toads were more likely to choose heterospecific males when exposed to environmental conditions that favor hybridization, suggesting that females may radically alter their mate selection in response to their own phenotype and their environment, even to the point of choosing males of other species. Expand
Frequency-dependent Batesian mimicry
This video shows how to avoid look-alikes of venomous snakes when the real thing is around, as well as how to spot them when they are not. Expand
Female spadefoot toads compromise on mate quality to ensure conspecific matings
The results suggest that the interaction between species and mate-quality recognition may influence mate choice decisions in important and nonintuitive ways. Expand
Nesting success of a disturbance-dependent songbird on different kinds of edges
We compared the nesting success of a disturbance-dependent species, the Indigo Bunting ( Passerina cyanea), on different kinds of habitat edges in five sites (225 total nests) in southern IllinoisExpand
Evolution's Wedge: Competition and the Origins of Diversity
This book discusses Character Displacement, Sexual Selection, and the Evolution of Isolating Mechanisms of Divergence in the Niche Partitioning of Resources and Reproduction. Expand
Character Displacement and the Origins of Diversity
The empirical support for Darwin’s principle of divergence of character is examined, specifically that (1) competition promotes divergent trait evolution, (2) the strength of competitively mediated divergent selection increases with increasing phenotypic similarity between competitors, (3) divergence can occur within species, and (4)competitively mediated divergence can trigger speciation. Expand
Relaxed genetic constraint is ancestral to the evolution of phenotypic plasticity.
It is found that the faster evolutionary rates of biased genes predated the evolution of the plasticity, and biased genes showed greater expression variance than did unbiased genes, suggesting that they may be more dispensable. Expand