Thursday, November 08, 2018

The rise and fall of wildlife since 1938

For a long time I have thought about the many changes in British (and other) wildlife during the course of my life, increasingly stimulated by the growing number of accounts of environmental catastrophes and massive declines in biodiversity.

I was born in 1938 and will be 81 next year.  I seem to have been interested in natural history since very early childhood, partly encouraged by my parents and other family members and there have undoubtedly been many changes in wildlife as I have interacted with it over the years.

I will need to write this in dribs and drabs as I remember things and try to get them into some sort of order, so please, if you are interested, re-visit from time to time to see what I have added.

I was born in Chingford, then in Essex, now in north east Greater London and lived there until I was twelve.  Vast tracts of Epping Forest were within easy walking distance of our house and I spent much time exploring there.

A friend, David Smith, and I were very interested in butterflies and moths and enjoyed trying to raise the adults from caterpillars.  We could collect dozens of different species from sloe and hawthorn bushes on the forest plains and used to find suburban poplar trees very fruitful too.  They nearly always had puss moth eggs and larvae, poplar greys and poplar kittens.  On suburban willow trees we found red underwing larvae and once a lobster moth caterpillar climbing an oak trunk.  The pollarded limes along our road (The Green Walk) often had lime hawk larvae heading up or down and I found eyed hawk caterpillars on our garden apple trees.  Once I went with a school friend to stay in Linton in Cambridgeshire and saw dozens of privet hawk larvae busily trimming the roadside privet hedge.  That was the last time I saw an early stage of this species.

Despite frequent searching of likely looking trees and shrubs around our present home in East Sussex, I rarely find caterpillars or see the feeding damage they cause as a sort of indicator on where to look.  It is not surprising that many insectivorous birds are struggling and the more they find now, the greater the pressure on surviving populations.  What is usually described as a downward spiral.

No comments: