Archive for November, 2010

In praise of mistletoe

November 29th, 2010

I enjoyed this piece in the Independent…”Mistletoe is the fulcrum of an entire ecosystem. A versatile and rapacious plant, it is home to a number of invertebrates which are specially adapted to thrive on and around its surface” The Independent

Barn owls like nest boxes

November 29th, 2010

Three-quarters of British barn owls now live in man-made nest boxes. BBC

Borrowdale’s rainfall record

November 18th, 2010
Flooding in Cumbria as bad weather sweeps across the UK
It’s official. Scientists at the Met have just annouced that the downpour that fell last November 2009 on Seathwaite Farm in Borrowdale saw 316.4mm of rain fall – statistically a once in 1,800 years event. The previous heaviest rainfall in the UK was at Martinstown, in Dorset, when 279.4mm fell in 24 hours in 1955. More from The Guardian

GDT wildlife photography award for Leeds photo

November 17th, 2010

Among this year’s GDT wildlife photography awards, winner of the “Man and Nature” category is this photograph of Leeds city centre, taken by Paul Hodson.  So where’s the nature, you might ask.  If you look at the traffic light, a small silhouette is visible against the amber: it’s a Mistle Thrush sitting on a nest.

Eggcase identification

November 17th, 2010

I thought this guide for identifying eggcases on the British coast was wonderful. Will definitely printing off a copy for next summer.

British butterfly quiz

November 16th, 2010

I enjoyed doing this identification quiz on British butterflies from learnaboutbutterflies.com

Check out also this matching activity Butterfly Quiz 2 Foodplants

Daubenton’s Bats hunting over water

November 15th, 2010

A short and remarkable video from Springwatch in 2009 showing Daubenton’s Bats catching insect right  over the water. They hunting big bugs such as stoneflies and mayflies and so only need about a thousand kills a night, unlike other bats which hunt smaller prey and need to catch some 3000.

Are foxes dangerous to cats?

November 15th, 2010

On a recent BBC wildlife podcast, fox expert Professor Steve Harris, Bristol University stated that the average urban fox will kill a cat every 6 years, and that some 500 cats live in every fox territory. So the risk is tiny.

A Bristol City Council leaflet writen by Professor Harris gives the follwoing advice:

This is very rare; a survey in northwest Bristol, where foxes were particularly common, showed that they killed 0.7% of the cats each year and these were predominantly young kittens. This means your cat is far more likely to be run over, stray or die from a variety of other causes.

Foxes are only a little bit bigger than a cat (males average about 5.5 kilograms) and are equipped with a set of sharp teeth. Cats have an equally sharp set of teeth, plus some pretty unpleasant sharp claws. If a fox tackles a cat, it risks severe injuries and that is the last thing it wants. Every night a single fox will meet many, perhaps dozens of cats and most encounters are either indifferent or amicable.

Cats and foxes will usually ignore each other. However, some cats are aggressive animals and will go for a fox, sometimes to drive it away from their garden or food bowl. Usually a fox will flee but if this is not practical and particularly if it is cornered, it may defend itself against the cat. Then both animals may be injured.

Finally, although foxes live in family groups and meet up periodically to play or socialise, they hunt alone. So stories of “packs of foxes” roaming the streets killing pet cats are totally fictitious.

Above photo from Wiki Commons of fox and pet rabbit by Oosoom.

Spindle webs

November 14th, 2010

web across nettles

Remarkable photo from the BBC’s Autumnwatch a few years back of spindle trees and bushes (Euonymus europaeus) in a Dorset hedgerow infested with the silk webs of the spindle moth or spindle ermine (Yponomeuta cagnagella). More here with a video.

Spindle ermines weave silk webs to protect themselves from birds and wasps, allowing them to gorge on leaves for six weeks before transforming into the moth. Not known for being bright sparks, they sometimes mistake other objects  for spindle trees such as this car in Rotterdam (Image: Daily Mail).
Moth attack: spindle ermines moth caterpillars covered this car with a giant silk web in Rotterdam

Are shrews dangerous?

November 13th, 2010

Water shrews (Neomys fodiens), Britain’s largest native shrew, have a venomous bite used to paralyse freshwater shrimps, water slaters and caddis larvae. Although, the shrews’ teeth cannot penetrate human skin, the venom in their saliva can leave a rash. So not exactly dangerous… More from the BBC here

People killed by deer

November 13th, 2010

The British Deer Society estimates that annually as many as 75,000 deer are involved in collisions, causing ten human fatalities and many more injuries. BBC here

British mushroom quiz

November 13th, 2010

I found this short and fiendishly difficult quiz on British mushrooms. Quiz on FirstNature

And some facsinating fungi facts here from the BBC Apparantly there are more than 3,000 different types of mushrooms and toadstools in the UK.

And a series of PDFs to promote awareness and understanding of fungi from the BMS.