Ecology

abundant acid activity adaptations adult allele animals aquatic average behavior biological biomass birds blood blood plasma brood carbon dioxide cells cent chromosome climate colonies competition cowbird cycle decreases density desert detritus diploid distribution ecological ecologists ecosystem efficiency eggs energy environment environmental equation equilibrium evolution evolutionary example extinction factors fecundity feeding female Figure fish fitness forest frequency function gametes gene genetic genotype groups growth rate habitats haploid heat hemoglobin herbivores heterozygote increase individuals influence insects interactions interspecific competition islands larvae males mammals mating meiosis metabolism mites molecules moths mutation natural selection nest nitrogen number of species nutrients occur organisms oropendola oxygen parasites patterns phenotype photosynthesis plants polymorphism population density predators prey population production protein rainfall range rapidly reduce regions relationship relative reproductive response season seeds soil structure surface survival terrestrial territory tion traits trees trophic level tropical variation varies vegetation