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THE EVOLUTION OF STRONG REPRODUCTIVE ISOLATION [PDF]
Felsenstein distinguished two ways by which selection can directly strengthen isolation. First, a modifier that strengthens prezygotic isolation can be favored everywhere. This fits with the traditional view of reinforcement as an adaptation to reduce deleterious hybridization by strengthening assortative mating. Second, selection can favor association
Nicholas H, Barton +1 more
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Asymmetric reproductive isolation between two sympatric annual killifish with extremely short lifespans. [PDF]
BACKGROUND: Interspecific reproductive isolation is typically achieved by a combination of intrinsic and extrinsic barriers. Behavioural isolating barriers between sympatric, closely related species are often of primary importance and frequently aided by
Matej Polačik, Martin Reichard
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Genetic Variability of the Mating Recognition Gene in Populations of Brachionus plicatilis
The development of reproductive barriers promotes within-species divergence and is a requisite for speciation to occur. Mate recognition in the rotifer B. plicatilis is mediated through a surface glycoprotein called Mating Recognition Protein (MRP). Here
Ivana Jezkova +3 more
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REPRODUCTIVE ISOLATION IN SONORAN DESERT DROSOPHILA [PDF]
of enzyme polymorphisms in relation to environmental variability. Amer. Natur. 108:1-19. 1976. A comment on the role of environmental variation in maintaining polymorphisms in natural populations. Evolution 30:188-189. CHAISSON, R. E., L. A. SERUNIAN, AND T. J. M. SCHOPF. 1976.
Therese A, Markow +2 more
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Neo-Allopatry and Rapid Reproductive Isolation
Over the past 3 centuries, many species have been dispersed beyond their natural geographic limits by humans, but to our knowledge, reproductive isolation has not been demonstrated for such neo-allopatric species. We grew seeds from three species of Centaurea (Centaurea solstitialis, Centaurea calcitrapa, and Centaurea sulphurea) that are native to ...
Montesinos, Daniel +2 more
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Disentangling the strength and importance of barriers to reproduction that arise between diverging lineages is central to our understanding of species origin and maintenance. To date, the vast majority of studies investigating the importance of different
Tracy M. Misiewicz +2 more
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Wolbachia-induced reproductive isolation [PDF]
Infection with the bacterium Wolbachia is sufficient to establish a reproductive barrier between two otherwise compatible species of wasp, making Wolbachia a potential driving force in evolution.
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Prepollination barriers prevent gene flow between co-occurring bat-pollinated bromeliads in a montane forest [PDF]
Background Reproductive isolation mechanisms in flowering plants are fundamental to preserving species’ evolutionary independence and to enabling the local coexistence of closely related species.
Stephanie Núñez-Hidalgo +1 more
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HYBRID ZONES AND REPRODUCTIVE ISOLATION [PDF]
The interpretation of hybrid zones remains one of the most difficult of taxonomic problems, despite the striking advances in systematics of recent decades. Mayr (1963: 496) selected sexual isolation, hybrid fertility, and developmental compatibility as the only criteria that will render possible unequivocal decisions (one species or two) in the case of
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Territorial exclusion and reproductive isolation [PDF]
Three experiments demonstrate that Mongolian gerbils exclude intruders from home territories and force them to migrate across a water barrier. Of those animals that did migrate in the third experiment, the majority avoided olfactory cues from the territory from which they were excluded.
D. D. Thiessen, M. Dawber
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