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EVOLUTIONARY RELATIONSHIPS WITHIN THE ENSATINAESCHSCHOLTZII COMPLEX CONFIRM THE RINGSPECIES INTERPRETATION
EVOLUTIONARY RELATIONSHIPS WITHIN THE ENSATINA ESCHSCHOLTZII COMPLEX CONFIRM THE RING SPECIES INTERPRETATION CRAIG MORITZ,1 CHRISTOPHER J. SCHNEIDER,2AND DAVID B. WAKE2 ^Department of Zoology, University of Queensland, St. Lucia, Queensland 4072, Australia 2Museum of Vertebrate Zoology, University of California, Berkeley, California 94720, US Abstract.—Sequences (644-681 bp) from the mitochondrial cytochrome b gene were obtainedfor 24 individuals […]
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HISTORY AND DEVELOPMENT OF BIOLOGICAL CONTROL
I. The history of Biological Control may be divided into 3periods: A. The preliminary efforts when living agents were released haphazardly with no scientific approach. Little precise informationexists on successes during this time. Roughly 200 A.D. to 1887 A.D.; B. The intermediate period of more discriminating BC started withthe introduction the Vedalia beetle, Rodolia cardinalis Mulsant, […]
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The Evolution Of Plant Sexual Diversity
The Evolution Of Plant Sexual Diversity Spencer C. H. Barrett Charles Darwin recognized that flowering plants have an unrivalled diversity of sexual systems.Determining the ecological and genetic factors that govern sexual diversification in plants is todaya central problem in evolutionary biology. The integration of phylogenetic, ecological, andpopulation-genetic studies has provided new insights into the selective […]
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Giant fungus discovered in China
Giant fungus discovered in China By Matt WalkerEditor, BBC Nature The most massive fruiting body of any fungus yet documented has been discovered growing on the underside of a tree in China. The fruiting body, which is equivalent to the mushrooms produced by other fungi species, is up to 10m long, 80cm wide, and weighs […]
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