Why Does Coral Reef Diversity Matter?

Coral reefs are one of the most diverse ecosystems on the planet and are home to 25 percent of all marine life though they occupy less than one percent of our oceans. There are sponges and corals of all shapes and sizes, hard and soft; tiny fishes like pygmy seahorses and big fishes like tiger sharks; there are anemones, nudibranchs and snails – the list goes on! Reefs are also diverse in types of habitats: fringing reefs, barrier reefs and atolls to name a few. Even a single species of coral is genetically diverse. But why does coral reef diversity matter in an era of global climate change? We all know the facts: corals face an uncertain future due to local threats, such as pollution and overfishing, and global threats, such as climate change and ocean acidification. But without the reef-building corals, like staghorn or elkhorn, there is no reef and no habitat for the myriad forms of life that call reefs home. If we are to have … [Read more...]

Who Should Pick the Winners of Climate Change?

The facts are clear: our world is getting warmer, and the warming is happening rapidly. For plants, animals and other organisms, shifts in climate have enormous consequences. Nowhere is this more true than on coral reefs, where a worldwide crisis is underway that has scientists and environmentalists asking a chilling question: how can we save coral reefs? At the Coral Reef Alliance, we believe that the natural process of adaptation can help save coral reefs. A new article in Trends in Ecology and Evolution, co-authored by CORAL staff and others, argues that adaptation will occur faster and have a better chance of succeeding if nature has many options with which to work. Options take the form of different species, individuals and genes and work like tickets in a lottery: most are not winners, but a few have just the right combinations to succeed. This article outlines an innovative approach and practical advice about how we can … [Read more...]