Biotic interactions are believed to play a role in the origin and maintenance of species
diversity, and multiple hypotheses link the latitudinal diversity gradient to a presumed …

The term 'biodiversity'is a simple contraction of 'biological diversity', and at first sight the
concept is simple too: biodiversity is the sum total of all biotic variation from the level of …

In recent years, scientists have realized that evolution can occur on timescales much shorter
than the" long lapse of ages" emphasized by Darwin—in fact, evolutionary change is …

Species richness varies widely across the tree of life, and there is great interest in identifying
ecological, geographic, and other factors that affect rates of species proliferation. Recent …

Adaptive radiation is the evolution of diversity within a rapidly multiplying lineage. It can
cause a single ancestral species to differentiate into an impressively vast array of species …

Why does nature love symmetry? In Asymmetry, Developmental Stability and Evolution, M--
oslash--; ller and Swaddle analyse the evolutionary implications of symmetry. They advance …

Estimates of the incidence of major classes of parental care by birds are drawn from
classical studies that preceded both the publication of a massive secondary literature and …

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The power of sexual selection to drive changes in mate recognition traits gives it the
potential to be a potent force in speciation. Much of the evidence to support this possibility …

Sexual conflict is a conflict between the evolutionary interests of individuals of the two sexes.
The sexes can have different trait optima but this need not imply conflict if their optima can …