![]() It can be very difficult to predict how a species or ecosystem will react when threats accumulate. Some threats may add directly onto each other, but most often, threats compound or multiply each other with far worse outcomes than if they were considered separately (see Ecosystem tipping points and stressors). Threats do not have distinct boundaries and effects, and for many organisms, these sources of stress can overlap. None of the threats that face our oceans can be understood in isolation from each other. To use this interactive, move your mouse or finger over any of the labelled boxes and click to obtain more information.īackground image: Richard Whitcombe, 123RF Ltd. Some habitats and species can recover quickly once threats are managed, whereas other threats are permanent and irreversible, such as extinction. ![]() Some can be managed through marine protected areas, while others will require us to work across society and sectors to protect our biodiversity and taonga species. Understanding how to minimise and manage these threats is one of the most important challenges facing us. Our actions at sea and on land are putting increasing pressure on the ocean and threatening many species with extinction. Many human activities are threatening the health of our marine environment.
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