Butterflies need protection

Anthony Valletta was a keen lepidopterist. He spent most of his life collecting and studying butterflies and other insects and was one of the first people in Malta to talk and write about the need to protect Malta’s natural environment. He wrote a number of books for children and adults as well as articles in newspapers and magazines.

In 1980 he wrote an article about the butterflies of the Maltese islands and their dwindling habitats, in which he expressed concern about an alarming decrease in the number of individuals of certain butterflies which he was noticing. He wrote that complete colonies had disappeared from newly built up areas. He noted that in the 48 years during which he had been studying butterflies the colourful abundance of these beautiful insects had become a thing of the past. As is the situation today the most common butterflies were the migrants who every year augmented the local population.

Lately I have been talking a lot with Maltese farmers especially elderly ones who remember the countryside as it was sixty or seventy years ago and what all of them told me sadly reflects what Valletta wrote thirty years ago. Mr Valletta believed that the decline was being caused by the destruction of the butterflies’ habitats because of new residential areas. He also blamed the planting of ornamental trees along the sides of valleys which were replacing local flora. The farmers blame the large quantities of pesticides that they use for the decline.

I am not aware of any studies that have been carried out to monitor the butterfly decline and their causes. It is already late to save the butterflies but it is better late than never and we can if we want to, halt the decline and even to reverse the trend. We owe the butterflies to future generations of Maltese people. We also have a responsibility to conserve local races such as that of the swallowtail butterfly which is endemic to the Maltese islands.

Mr Valletta wrote that many of the natural habitats would continue to disappear but he hoped that those in a position to do so will encourage the preservation of all existing species by ensuring that the necessary food plants are not entirely eradicated from the countryside and in some cases that these would be deliberately propagated.

Unfortunately, many species that Mr Valletta once enjoyed have become a rarity and might soon become extinct from the Maltese islands unless urgent action is taken to save them.

This article was published in The Times on 18.August.2010)

Insect diversity

Last Sunday I photographed a soft-winged flower beetle at Wied Qirda. This is a small shiny green beetle known in Maltese as ħadranija tal-ward. 

It is a common species often seen on yellow flowers such as the Cape sorrel (ħaxixa Ngliża) and the crown daisy (lellux). The beetle I photographed on Sunday was spotted by my three year old son.

 I did not see it myself because it was walking on the stem of a grass about 10 cm from the ground and out of my line of vision. Children have a different perspective of their surroundings and often manage to see things which grownups miss. 

I often encountered adults who say that they remember seeing more flowers and insects when they were young. They remember more than anything the gourd ladybird (nannakola tal-faqqus il-ħmir) an insect that lives on the squirting cucumber (faqqus il-ħmir). Both the squirting cucumber and the ladybird are still common in the Maltese countryside. These people fail to see them because they do not know where and how to look.

This does not mean that insect numbers have not gone down. The amount of countryside has shrunk drastically during the last 50 years and it continues to be gobbled up at an alarming rate in spite of the fact that we are more aware about the need to conserve it. 

Changes in agriculture, especially the use of pesticides have had their toll as well. Pesticides kill insects and many kill indiscriminately. They kill pests as well as other species some of which are beneficial such as bees especially if they are used indiscriminately. 

For several decades farmers have been urged to spray their crops. As the pests became immune to the pesticides stronger pesticides in larger doses had to be used. Now they are being told to stop using them and many are confused. Some have been spraying their crops throughout their whole life and do not know otherwise. 

Although many are now realising that something is wrong they find it hard to accept that what they have been told for the past thirty or forty years was not exactly right and find it hard to change. A small number are now starting to practice more environment friendly agriculture and more should do so for the benefit of everybody including nature.

This article was published in The Times on 03.03.2010