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- Depositor
- Karen Dykes
- Date Uploaded
- 2021-12-08
- Date Modified
- 2021-12-08
- Fixity Check
- passed on August 08, 2024 at 14:06
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| Transcript |
- number of [male symbol]'s in both Caper [Capercaillie] + Blackgame
is necessary to provide the right
reproductive stimulus - irrespective of
whether the [male symbol]'s all take part in copulation.
For this reason they oppose [male symbol] shooting
that produces an overbalanced sex ratio
Black game are promiscuous, Capercaille [Capercaillie]
much as in Dendragapus [underlined], that is possibly
promiscuous but males often found near the
brood. Hazel hen is monogamous.
Koskimies has been busy with a study
of the w. w. [white-winged] scoter. The species nests on
islands in the Baltic archipelago also on
lakes north into Lapland. He finds that
very few young survive in the Baltic pop. [population]
One year 120 yng [young] hatched from July 5 to 15 +
all were gone by the 19th. Two factors
seem to be responsible. A cold stormy
spell brings cold water to the surface
+ he thinks this is the most important
destructive influence - exposure. The Lapland
lakes have a lower mean surface
temperature but far less fluctuation + a
higher minimum. Also during stormy
spells the Lesser black-backed gulls are
more active as predators probably because they
are deprived of their normal feeding opportunities
The question arises in my mind whether
the range of sea [word crossed out] bufflehead + Goldeneye in
Marginalia: Scoter biology, Goldeneye vs [versus] bufflehead
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