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THE COMPARATIVE BIOLOGY OF CLOSELY RELATED SPECIES LIVING IN THE SAME AREA
Author(s) -
MCNAUGHTON I. H.,
HARPER JOHN L.
Publication year - 1960
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1960.tb06197.x
Subject(s) - biology , pollination , insect , papaver , hybrid , natural selection , botany , ecology , selection (genetic algorithm) , pollen , artificial intelligence , computer science
S ummary It has been demonstrated that in Britain five species of Papaver ( a ) frequently occur together, ( b ) flower over the same general period, ( c ) are normally insect‐pollinated and possess insect visitors in common. Hybrids are rare under natural conditions although some can easily be produced artificially. The external barriers reducing the chances of natural hybridization are the facts that ( a ) some of the species have mechanisms facilitating self‐pollination, and ( b ) specific selection by the principal insect visitor, the honey‐bee, tends to reduce the chances of cross‐pollination between the species.