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Showing posts with the label ecosystem changes

Weekly Podcast Episode 2

The Thin End considers how growth has become a political mantra and how bad trade pollutes the planet and fuels climate change, and the suggestion that there should be carbon taxes. Subscribe to The Thin End Follow @Ray_Noble1

Weekly Magazine Episode 1

Latest Podcast. A weekly round up of news and views on topical issues. This week: Invasive Rabbits and Hares, pesticides and hummingbirds, Invasive mosquitos, abortion law reform in the UK, and controversl new blood pressure guidelines.

Rabbits and hares a conservation nightmare?

Throughout history, humans have deliberately translocated rabbits and hares (leporids) around the world, so they now occupy every continent, with the exception of Antarctica. But our bunnies are not always lovable, at least not from a conservationist viewpoint.  They can be a pest, creating economic and ecological mayhem. A new  Mammal Review  article examines studies on the twelve leporid species that have been introduced by humans to areas beyond their native ranges, highlighting the effects on the ecosystem at different levels. Rabbits and Hares breed fast One thing is certain about rabbits. Rabbits breed like rabbits, and that means fast! Most leporids have multiple litters per year with litter sizes varying from 1 to 11 individuals, and each female produces between 10 and 45 young per year.  This makes them resilient to predation, and enables them to adapt rapidly to environmental change.  They can also rapidly colonise a range of environments. T...

Soil carbon release accelerating global warming.

Could the release of carbon from the soil be accelerating global warming and climate change?  The answer from the latest research published in Nature appears to be a resounding 'yes.'  Perhaps it is not surprising given that the soil acts as a significant store of global carbon.  It isn't merely locked in place. Organic processes release it into the atmosphere.  Carbon is a vital ingredient of our living planet and plays a major role in the balance of our ecosystem. All life on earth is 'made' of carbon and carbon circulates. Carbon enters the atmosphere as carbon dioxide from respiration and combustion. It is absorbed by plants to make carbohydrates in photosynthesis using energy from the sun. Animals feed on the plants passing the carbon compounds along the food chain. Most of the carbon they consume is exhaled back into the atmosphere as carbon dioxide. The animals and plants eventually die, and these dead organisms get eaten by decomposers (microbes a...