Guillemots and Murres could not appear to be Puffins at a look, however all three of those seabirds belong to the Auk household tree. In the event you’re new to the Auk household, you could be shocked to study that Puffins aren’t, actually, an in depth relative to penguins. As a substitute, Auks, Guillemots, Murres, and Puffins make up there personal particular seabird household. One key distinction between this household and Auks — these birds can fly! With all that’s distinctive and fascinating in regards to the Guillemot and its family, it’s not laborious to see why conservationists are eager about defending these charming birds.
On the Skomer Island, positioned simply off the southern coast of Wales, these protections have begun to repay. Skomer Island was as soon as residence to a colony of over 100,000 Widespread Guillemots (Widespread Guillemot and Widespread Murre are used interchangeably, however we’ll follow calling them Guillemots right here). In 1930, these numbers started to sink and by the top of World Warfare II, the colony had shrunk by as a lot as 95%. Skomer Island’s Guillemots had been in hassle. The principle explanation for this decline was fixed and pervasive oil air pollution.
Within the Nineteen Seventies, about 90% of Guillemot cadavers discovered useless within the Skomer Island space had been discovered to be contaminated with oil. Within the Nineteen Eighties, nevertheless, conservation efforts started to actually take off. From a meager inhabitants 0f 2,000 birds in 1972, the colony has recovered to 30,000 people. And what’s extra, oil air pollution is now present in simply 10% of recovered Guillemot cadavers.
Restoration has been agonizingly gradual, however evidently very rewarding. Regardless of making nice strides, nevertheless, Skomer Island’s Guillemots nonetheless face risks, a few of which we’re simply starting to know. Current findings recommend that, seemingly as a result of local weather change, the timing of Guillemot breeding on Skomer Island has modified by as a lot as two weeks. Hotter temperatures progressively power birds to breed earlier within the season. The implications of this alteration are an enormous unknown. Different new threats embrace more and more frequent harsh winters, unseasonal storms, avian influenza, and modifications in meals provide.
The Guillemots of Skomer Island are poised to make an unbelievable comeback. The discount of oil air pollution within the waters off the coasts of Wales gave them sufficient of a reprieve that they had been capable of progressively rebuild their delicate inhabitants, rising in dimension by 15 occasions over the course of the final 50 years. Solely time will inform if this present inhabitants is resilient sufficient to climate the modifications introduced on by the warming local weather.