Üldökoloogia kordamisküsimuste vastused
GPP gross primary production e. koguprimaarproduktsioon.
NPP net primary production e. puhas primaarne produktsioon = GPP R(espiratsioon); NPP
on kasutatav hetertroofidel.
Heat affects growth rates, activity, behavior and primary production. Temperature is largely
dependent on the incidence of solar radiation. The latitudinal and longitudinal spatial variation
of temperature greatly affects climates and consequently the distribution ofbiodiversity and levels of
primary production in different ecosystems or biomes across the planet. Heat and temperature relate
importantly to metabolic activity. Poikilotherms, for example, have a body temperature that is largely
regulated and dependent on the temperature of the external environment. In
contrast, homeotherms regulate their internal body temperature by expending metabolic energy. [2][86]
[157]
There is a relationship between light, primary production, and ecological energy budgets
annaabi.ee 
