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Evolution megalab - sneglejagt
Fra : Glenn Møller-Holst


Dato : 31-03-09 09:34

(svar sendes som standard til: nntp://dk.natur )

Hvis man ønsker at hjælpe nogle forskere - eller blot interesserer sig
lidt for snegle - så kig her:

Welcome to the Evolution MegaLab!:
http://www.evolutionmegalab.org/
Citat: "...
Did you know that thanks to a common little snail you can find in your
garden, in the park or under a hedge, you can see evolution in your own
back yard?
...."

Download evt. eksempler på tidligere oplyste data her:
http://www.evolutionmegalab.org/en_GB/downloads

http://www.evolutionmegalab.org/en_GB/information/viewTakingPart


Jagtopskrift og identificering:

Video:
The Evolution MegaLab: How to do a snail hunt:
http://www.youtube.com/watch?v=c8qghHQ7-n0

How to hunt banded snails:
http://www.evolutionmegalab.org/file_downloads/en/How_to_hunt_banded_snails.pdf
Citat: "...
There are two species of Cepaea. We would like you to count the
different types (called morphs) of both the brown-lipped
snail (Cepaea nemoralis) and the white-lipped snail (Cepaea hortensis).
....
How and what to record.
In a wide area such a school playing field, search an area of about 20m
X 20m, looking under leaves and other hiding places.
If you are sampling a hedgerow, or along a path then search along a 30m
stretch.
....
You can record living snails OR dead ones, so long as the empty shells
look reasonably fresh. Ignore any empty shells that are obviously very
weathered in appearance.
...."

Bemærk at forskerne "kun" ønsker oplysninger om Cepaea nemoralis
(brunkantet husforkant, "Brown lipped") og Cepaea hortensis (hvidkantet
husforkant, "White lipped") og disse snegles husfarve og evt. husbebånding:

Recording sheet:
http://www.evolutionmegalab.org/file_downloads/en/Recording_sheet.pdf

http://www.open.ac.uk/forums/EvolutionMegalabDiscussionForum/index.php

-

Engelsk:
http://en.wikipedia.org/wiki/Cepaea

Dansk:
Hvidkantet husforkant, "White lipped":
http://da.wikipedia.org/wiki/Havesnegl
Engelsk:
http://en.wikipedia.org/wiki/White-lipped_snail

Dansk:
Brunkantet husforkant, "Brown lipped":
http://da.wikipedia.org/wiki/Lundsnegl
Engelsk:
http://en.wikipedia.org/wiki/Grove_snail

Engelsk: Denne Cepaea art er ikke fundet i Danmark:
http://en.wikipedia.org/wiki/Cepaea_vindobonensis

-

Billeder:

http://commons.wikimedia.org/wiki/Category:Cepaea

hilsen

Glenn

 
 
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