Climate change may make species infertile

London: Rising temperatures could drive some species to become sterile, making them succumb to the effects of climate change earlier than thought, scientists say. Currently, researchers are trying to predict where species will be lost due to climate change, so they can build suitable reserves in the locations they will eventually need to move to.

However, most of the data on when temperature will prevent species surviving in an area is based on the ‘critical thermal limit’ or CTL — the temperature at which they collapse, stop moving or die, according to researchers from University of Liverpool in the UK.

In a research the researchers highlight that extensive data from a wide variety of plants and animals suggests that organisms lose fertility at lower temperatures than their CTL. Certain groups are thought to be most vulnerable to climate-induced fertility loss, including cold-blooded animals and aquatic species.

“There is a risk that we are underestimating the impact of climate change on species survival because we have focused on the temperatures that are lethal to organisms, rather than the temperatures at which organisms can no longer breed,” said Tom Price from the University of Liverpool. “Currently the information we have suggests this will be a serious issue for many organisms,” said Price.

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