If you have lots of small isolated populations, each one of them is more vulnerable to local extinction.
Brendan Kelly
Fortunately, for us the problem had been solved a long time ago by Inuit hunters. They figured out their dogs could smell the seal holes under the snow.
time problem dogs snow smell
What happens is that the seal swims up through an open net into the breathing hole. We hear the seal breathing through a microphone and transmitter that we've placed in the snow and that transmits back to our hut.
breathing open snow hear
extinction small vulnerable
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