Field trip to Iceland, 2014 – Plastic cup as a deadly trap

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David filming Dmitri talking about the carelessly discarded plastic cup
David filming Dmitri talking about the carelessly discarded plastic cup

While Dmitri recorded his findings from a discarded cup (see below), I saw an opportunity to see what was growing along the edges of the marsh next to us. This included two species of cotton grass which were very striking (Common cotton grass and Scheuchzer’s cotton grass), marsh cinquefoil and bog bean, along with 3 introduced species brought to Iceland by human activities (Colt’s foot, groundsel, Common valerian).

One of the stories I really want to explore while here in Iceland is that of the introduced plants which have naturalised in the Icelandic countryside, focusing in particular on the Nootka lupin (Lupinus nootkatensis).

Entomology Manchester

On the second day of our field trip to Iceland, we visited the interesting site lying in the southern municipality of Reykjavik, called Garðabær, which literally means ‘Garden Town’. We walked around the beautiful Lake Urridavatn surrounded by boggy meadows full of sedge, dwarf bushes (like blue berry) and cotton grass (see on the photo).

Boggy meadow with cotton grass (left) and the blue berry bush (right) near Lake Urridavatn in Iceland Boggy meadow with cotton grass (left) and the blue berry bush (right) near Lake Urridavatn in Iceland

On the meadow side of the path to the lake we found a plastic cup thrown by someone a few days ago. Incidentally, the cup, which was partly filled with rain water, became a deadly trap to insects and spiders. Having inspected the content of the cup I found two specimens of crab spiders (Xysticus sp.; male and female), one specimen of the ground beetle (family Carabidae) and one harvestman (family Phalangiidae). So, the cup ‘worked’…

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