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Understanding the response of aquatic organisms to elevated water temperatures offers insight into the ecological consequences of climate change on riverine species. Upper thermal limits were determined for two riverine invertebrates, the amphipod Paramelita nigroculus (Paramelitidae) and the mayfly Lestagella penicillata (Teloganodidae), in two rivers in the south-western Cape, South Africa. Limits...
Acclimation is possibly the most important criterion deciding an animal’s ability to survive change. Species with poor abilities to acclimate to small environmental change are likely to be the most vulnerable in future warming scenarios. Two separate assemblages of Ophionotus victoriae were slowly acclimated from 0°C to either +2 or +3°C and then held at these higher temperatures over a prolonged...
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