[Odonata-l] Fliers vs Perchers database for North American species?

[O'Brien, Mark]

Well, you said flight mode, and then talk about perching...   What you
are asking has more to do with reproductive behavior and feeding and
less to do flight modes.   The Corduliids, Macromiids and
Cordulegastrids are not considered perchers, but more like "hangers" --
same as a  lot of Aeshnids.  If you were to see any of these groups in
flight, you would see that they rarely alight except when resting and in
inclement weather.  

Mark

Mark F. O'Brien, Collections Manager
Insect Division, Museum of Zoology
University of Michigan
(734)647-2199

-----Original Message-----
From: odonata-l-bounces at listhost.ups.edu
[mailto:odonata-l-bounces at listhost.ups.edu] On Behalf Of
aardila at uoguelph.ca
Sent: Saturday, April 12, 2008 10:10 PM
To: odonata-l at listhost.ups.edu
Subject: [Odonata-l] Fliers vs Perchers database for North American
species?

Hello everyone,

I wonder if there is a database describing the flight mode of North
American Odonata. I have read Zygopterans are almost all considered
perchers, as well as Gomphiidae and Libellulidae, while Aeshnids are
fliers. There are exceptions in libellulids such as members of Tramea.

Is there a database listing exceptions? What about the flight mode for
members of Cordulegastridae, Cordulidae and Macromiidae? For example:

Cordulegaster maculata
Cordulia shurtleffi
Dorocordulia libera
Didymops transversa
Macromia illionensis georgina
Epitheca canis
Neurocordulia yamaskanensis
Somatochlora williamsoni

I also wonder about members of Nehalennia. They are so small and they  
seem to hop from leaf to leaf rather than flying...

Thank you in advance for any guidance in the topic,

Cheers,

Alex
--
Alex Ardila-Garcia
MSc Candidate
Genomic Diversity Lab
Dept. Integrative Biology
University of Guelph
Guelph (On), Canada
N1G 2W1
1-519-824-4120 ext.52548
http://www.genomesize.com/gregorylab/
-- 





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