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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Background
One of the biggest challenges in avian taxonomy is the delimitation of allopatric species because their reproductive incompatibility cannot be directly studied in the wild. Instead, reproductive ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Divergent sexual selection within allopatric populations may result in divergent sexual phenotypes, which can act as reproductive barriers between populations upon secondary contact. This hypothesis has been most tested ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Background
Postzygotic isolation in the form of reduced viability and/or fertility of hybrids may help maintain species boundaries in the face of interspecific gene flow. Past hybridization events between ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
Sperm morphology is highly diversified among species and at higher taxonomic levels. In birds, there is also increasing evidence of geographical differentiation in sperm traits within species, especially in those with ...