Andy Adcock
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New Adelie colony found (1 Viewer)
- Thread starter Andy Adcock
- Start date
Frenchy
Well-known member
Amazing discovery, but there is a very strange paragraph in the article:
"The result is of major significance because it would appear the archipelago has somehow avoided the recent Adélie declines documented elsewhere on the peninsula, particularly on its western side."
How are they assessing that? There could have been 5 million there last year and this colony has suffered the biggest decline of all colonies, how would they know if this colony was unknown until recently.
"The result is of major significance because it would appear the archipelago has somehow avoided the recent Adélie declines documented elsewhere on the peninsula, particularly on its western side."
How are they assessing that? There could have been 5 million there last year and this colony has suffered the biggest decline of all colonies, how would they know if this colony was unknown until recently.
MJB
Well-known member
Mapping of some birds is done by counting birds on the fresh guano area: if only a small proportion of the guano area is occupied during the breeding season, then one conclusion is that there has been a population reduction. I'm assuming here that this new colony has breeding birds pretty well over the entire fresh guano area.
MJB
Frenchy
Well-known member
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