Год выпуска: 2012 Автор: Hassaan Bin Saadat Издательство: LAP Lambert Academic Publishing Страниц: 112 ISBN: 9783659244711
Описание
Climate change is an established fact but the way and the intensity in which the climate has been changing since 1975 has created an alarming situation for all of us. The last decade was the warmest since instrumental records have been kept in the nineteenth century. Climate change is a major threat to biodiversity by causing changes in plant phonologies and pole ward shifts in birds and butterflies. In terrestrial ecosystem 28,586 significant biological changes are related with climate change. With a relatively short life-cycle and host-plant reliance, butterfly communities show quick response to climate change. Punjab has few coniferous forests which are home to many exotic species. Twenty two years climate analysis shows reduction in precipitation and an increase in extreme weather events. In short span of just twenty years 14 butterfly species have disappeared from very rich forests of Murree. The species which are present are also on the verge of extinction as with climate...
