9.5 ecological succession Flashcards
what is predictable changes?
what is primary succession?
primary succession begins on sites that have no or very little existing biota
-e.g. bare substrate after retreat of a glacier, new volcanic islands, recolonization of species after a paved parking lot is abandoned, etc
begins in an area where soil and species remain after a disturbance
-e.g. after a forest fire, logging, insect defoliation
what is an example of primary succession?
what are long-term (primary) successional trends?
what are examples of secondary succession?
what is life history and succession?
what is the boreal caribou-wolf-moose system?
what is the intermediate disturbance hypothesis?
what is change at large spatial and temporal scales? what is paleoecology?
-earth’s surface has changed profoundly over the past 4.6 billion years
paleoecology is the study of the distribution and abundance of ancient organisms and their relationship to the environment
-reconstruction of plant distribution after the last glacial maximum (laurentian ice sheet) of the Pleistocene
-climatic oscillations between cold and temperate phases
-historic occurrence and distribution of plant species are indicated by the pollen record of sediment cores
what is ukok plateau? ubunsunar hollow biosphere reserve?
-ukok plateau is one of the last remnants of the mammoth steppe
-ubsunar hollow biosphere reserve located on the border of mongolia and the republic of tuva is one of the last remnants of the mammoth steppe
