All Flashcards
What is the relationship between GPP and NPP?
NPP = GPP - Respiration. NPP is the energy available after respiration.
Why is NPP important for an ecosystem?
Determines how much life an ecosystem can support; higher NPP means more biodiversity.
How does energy flow in an ecosystem?
Energy flows from the sun to producers (GPP), then some is lost to respiration, and the remainder (NPP) is available to other organisms.
What is Gross Primary Productivity (GPP)?
Total energy captured by producers through photosynthesis.
What is Net Primary Productivity (NPP)?
Energy remaining after producers use some for respiration; energy available to other organisms.
What is respiration in plants?
Process by which plants use captured energy for their own needs, releasing some as heat.
What is the effect of increased sunlight on GPP?
Increased sunlight can increase GPP, leading to higher NPP.
What is the effect of higher temperatures on GPP?
Up to a certain point, higher temperatures can increase GPP.
What is the effect of increased water availability on GPP?
Increased water availability can increase GPP, especially in water-limited ecosystems.
What is the effect of increased nutrients on GPP?
Increased nutrients can increase GPP, especially in nutrient-limited ecosystems.