Tag Archives: #ArabianGulf

Homo sapiens, biodiversity and climate change in the Arabian Gulf

“In order to understand, I destroyed myself.”  ― Fernando Pessoa

For the past 4.5 billion years, the world we today call “Planet Earth” has been undergoing constant change since its formation especially in terms of climatic changes driving evolutionary change whereby species and ecosystems work on adapting to survive or face extinction.  This constant fluctuation between the climate being extremely cold and covered in ice to very hot and vice-verse has in the past 10,000 years come to equilibrium, thus, making the planet’s climate more stable.

This has led to the flourishing of diverse flora and fauna creating what we know as today’s biodiversity and subsequently to the explosion of the Homo sapiens species population. The Convention on Biological Diversity (CBD) defines biodiversity as the variety of life on earth and the natural patterns it forms, this refers to ecosystem, species and genetic variation.

In the past approximately 650,000 years, temperatures and greenhouse gases such as CO2 and CH4 levels are known to have changed following cyclical patterns over a large span of time. However, over the past century following the industrial revolution, human activities have started affecting the natural climate balance negatively whereby COlevels have now reached 400 ppm in comparison to the 80 ppm rise in COconcentration at the end of the past ice age which took over 5000 years to occur.

A-dugong-feeding-on-a-sea-grass-bed

Climate change impacts are already being felt around the world with projections of dramatic shifts in the states of many ecosystems; climate change has also been linked to well documented changes in physiology, phenology, species distributions and others (Watson, 2012). Moreover, it is also seen to be one of the main contributors to the global loss of biodiversity and has already caused accelerated rates of species’ extinctions along with changes to ecosystems worldwide (Sala et al., 2000; Thomas et al., 2004; Pimm, 2008; Watson, 2012).

Known to host the world’s hottest sea, the Arabian Gulf in recent years has become an attraction hub for scientists, economists, energy experts and researchers from various fields due to the region’s interesting and challenging nature (Riegl & Purkis, 2012). Despite the harsh environmental conditions, the region harbours a rich biodiversity bringing together ecosystems such as coral reefs, mangroves, sea grass beds and sabkhas whilst being home to numerous endemic species. Moreover, the Arabian Gulf also fosters many migratory species of turtles, whales and other species and is considered to be of international importance in terms of biodiversity as it hosts the second largest population of dugongs following Australia and the largest breeding colony of the Socotra Cormorant in the world in addition to many other reasons…..Continued here