10% rule and Terms Flashcards
The 10% rule and its implications
Practice doing the calculations between trophic levels. It’s tied to biomagnification(toxic build in higher predators) and bioaccumulation (toxic build in tissues over time.)
Keystone Species
Usually not abundant in a community but exert strong control on community structure
Intermediate Disturbance Hypothesis
Goldilocks; too much disturbance reduces diversity by creating environmental stresses; destroy the habitat. But too little disturbance reduces diversity by allowing competitively dominant species to exclude less competitive ones; habitat to change.
Diversity
Number of species + their relative abundance
Richness
The number of different species in the community
Invasive Species
Organisms that become established outside their range; nonendemic species that threaten the existence of other native members
Zoonosis
Pathogens that are transmitted to humans from other animals
Vector
How’s a disease transmitted either by parasites from ticks, lice, and mosquitoes
Emerging Diseases
Diseases that are being transferred from wildlife to humans
Primary Succession
Prokaryotes and protists are present. Lichen and mosses are commonly the first macroscopic producers to colonize. Soil gradually develops as rocks weather and organic matter accumulates from decomposed lichen and mosses. Will not maintain middle habitats unless a disturbance like a fire keeps the habitat from succeeding to the next level.
soil -> grasses -> shrubs -> fast growing trees -> slow growing trees
Secondary Succession
Secondary Succession was mostly the same as primary succession, however, it starts on soil instead of rock(e.g farmland.) Will not maintain middle habitats unless a disturbance like a fire keeps the habitat from succeeding to the next level.
