Lec 16 Bild 3 2011

Lec 16 Bild 3 2011 - BILD 3 Lecture 16 - Ecosystem Ecology...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
BILD 3 Lecture 16 - Ecosystem Ecology I I. Overview II. Net Primary Productivity III. Secondary production REMINDER: Extra Credit DUE DECEMBER 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ecosystem ecology : study of natural systems and the interactions between biotic and abiotic components. Looks at flow of energy, nutrients, and matter among the various community members and the environment.
Background image of page 2
Key Chemical cycling Energy flow Sun Heat Primary producers Primary consumers Secondary and tertiary consumers Detritus Microorganisms and other detritivores Nutrients cycle within an ecosystem; energy flows through an ecosystem
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Reservoir A Organic materials available as nutrients Living organisms, detritus Reservoir B Organic materials unavailable as nutrients Reservoir D Inorganic materials unavailable as nutrients Reservoir C Inorganic materials available as nutrients Fossilization Burning of fossil fuels Assimilation, photosynthesis Weathering, erosion Formation of sedimentary rock Respiration, decomposition, excretion Peat Coal Oil Minerals in rocks Soil Atmosphere Water Ecosystem ecology view of the world. Focus is on movement of nutrients between compartments or reservoirs
Background image of page 4
Community ecology view of the world Focus is on biotic interactions, food web structure, and trophic relationships.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
II. Net primary production primary production : amount of light energy converted to chemical energy by autotrophs (per unit time) gross primary production (GPP) = total primary production net primary production (NPP) = gross primary production minus energy used by producers for cellular respiration NPP usually expressed in g of carbon/m 2 /year NPP represents energy in an ecosystem available to consumers.
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 30

Lec 16 Bild 3 2011 - BILD 3 Lecture 16 - Ecosystem Ecology...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online