Celebrating Rot and Decay - Detritivores Energy isn’t transferred only upwards between trophic levels. Detritovores use the energy available in dead organisms.

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Presentation transcript:

Celebrating Rot and Decay - Detritivores Energy isn’t transferred only upwards between trophic levels. Detritovores use the energy available in dead organisms and allow recycling of essential nutrients in ecosystems.

Only a Fraction of the Energy Present in Organisms of One Trophic Level Is Captured by Organisms of the the Next This limits the number of trophic levels.

The Millennium Ecosystems Assessment Project - one bold approach to placing a value on biodiversity and ecosystem function Our Changing Planet

Greenhouse Gases and Global Warming

A Warming World

Science (2005) 309:100

Species Distributions Are Now Changing in Response to Global Warming This map shows projections, but many dramatic shifts in species distribution have already been documented.