Using VHSR multispectral imagery and object-based extraction to discover vernal meadows through vegetative persistence at Fort Ord, California

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Geographic Information Science and Technology multispectral Ikonos WorldView 2 object\u2010based image analysis vernal pool Ft. Ord chaparral classification Persistence Index

DOI：

doi:10.25549/usctheses-c3-576672

摘要：

Ord, California, a rare subset of vernal pools occur perched atop relict sand dunes in an arid chaparral environment. Fifteen vernal pools have been pr

Data from: Multiple reproductive barriers separate recently diverged sunflower ecotypes

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关键词：

sand dune adaptation;ecological divergence;Helianthus petiolaris;incipient speciation;pollen competition;reciprocal transplant

DOI：

doi:10.5061/dryad.223p4

摘要：

ly diverged (< 10,000 years bp) dune and non-dune ecotypes of the prairie sunflower, Helianthus petiolaris. We find reproductive barriers acting at multiple