Why is a banana leaf a million times bigger than a common heather leaf? Why are leaves generally much larger in tropical jungles than in temperate forests and deserts? The textbooks say it’s a balance between water availability and overheating.
But it’s not that simple.
A global team of researchers, led by Associate Professor Ian Wright from Macquarie University, revealed that in much of the world the key limiting factor for leaf size is night temperature and the risk of frost damage to leaves.
Continue reading The mystery of leaf size solved
Twenty hectares of old, abandoned fish ponds have been rehabilitated into mangrove forests in Tiwoho, in Indonesia’s North Sulawesi.
Their efficiency in capturing and storing carbon from the atmosphere is being put to the test by researchers, in the hopes the rehabilitation process can help mitigate the effects of climate change and restore the provision of ecosystem services, such as fisheries, provided by healthy mangroves.
Continue reading Rehabilitating mangrove forests may help combat climate change
Evidence is building to suggest that our forests may not be the climate change ‘get out jail free’ card we all want.
Australian Rivers Institute’s Assoc. Prof. Peter Pollard has researched rainforest lakes and rivers to test a provocative theory. The respiration of bacteria living and ‘breathing’ in these freshwater ecosystems is a major pathway for the return of rainforest carbon back to the atmosphere as the greenhouse gas carbon dioxide.
Continue reading Are forests really the carbon sink we need?