Ecology Flashcards
albedo and earths
amount of light reflected on a surface and 30%
7 trophic levels
producer, primary, secondary, tertiary, quaternary, quintenary, sextary
first law of thermodynamics
energy can not be created or destroyed. it can only be transformed
second law of thermodynamics
with each conversion of energy, there’s going to be les energy available
chemosynthesis
photosynthesis in the ocean
trophic level
feeding level where energy and matter is transformed
food chain
feeding model that shows the linear pathway of the transfer of food through low to higher trophic levels
how many % of energy is passed on to the next trophic level
30%
Rapid cycling
recycling of materials quickly eg carbon
slow cycling
recycling of materials slowly eg fossil fuels
2 carbon sinks
ocean and forest trees
how can acid deposition affect ecosystem
acidifies lakes damage plants leech nutrients from soil
nitrogen fixation
converting of nitrogen gas into ammonium through bacteria
nitrogen fixing bacteria
live on lumpy nodes of legumes and turn nitrogen into ammonium for the plant
ammonification
decomposers break down organic matter into ammonium