[Odonata-l] black in dragonflies

[Richard Rowe]

Erik Pilgrim wrote:
The work on S. nigrescens vs. S. striolatum also
included morphological work.

The genetic work doesn't say S. nigrescens isn't
different enough from S. striolatum for it to be a
separate species. The genetic work suggests that gene
flow is freely occurring between nigrescens and
striolatum.

... as it would if they were environmentally induced ... perhaps through the common presence of a temperature sensitive gene or else something that is an indirect consequence of different environmental conditions (e.g. different larval durations that are due to thermal regimes). So we have more questions,

Richard

-- 
Dr Richard Rowe
Zoology & Tropical Ecology
School of Marine & Tropical Biology
James Cook University
Townsville 4811
AUSTRALIA

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