The identification of hybrids between closely related taxa bears relevance for studies of gene flow and the evolution of mechanisms of genetic isolation. As such it is an important phenomenon when studying speciation. Furthermore, hybridisation...

Capsule Sister taxa hybridize more frequently than non-sister taxa.

Aims To test whether the frequency of hybridization is higher in avian sister species than in non-sister

species, based on molecular phylogenetic relationships...

quadrature hybrid couplers are useful in communications systems and measurement applications. Many

3-dB, 90-deg. hybrid directional couplers have been developed for narrowband use but, with growing interest in ultrawideband (UWB...

Unified hybrid censoring is a mixture . . ....

Black-headed (Emberiza melanocephala) and Red-headed (Emberiza

bruniceps) buntings known to hybridize southeast of Caspian Sea.

Two species also come to close in northern Caspian Sea and eastern ...

Range size and distribution of species can be greatly influenced by a

wide range of ecological, behavioral, and historical process such as

competitive interactions between two species in hybrid zone. Black-headed (Emberiza...

poly oxometalate represent a well known

new hybrid controller is presented

that is applicable to dc–dc series resonant converters and use neither r averaging nor small signal approximation. The dc–dc resonant converters are inherently switched affine systems with constrained...