LANDSCAPE ECOLOGY SREM 3011 LECTURE 11 Dr Brendan Mackey Department of Geography The Australian National University
LANDSCAPE ECOLOGY SREM 3011 LECTURE 11 Dr Brendan Mackey Department of Geography The Australian National University
2. Context Low frequency behaviour allows upper level to be the context of lower level context is either spatially larger or more constant over time than lower level the fact that summer follows spring sets the context for plant growth that which is constant NB unpredictability can be"constant"and therefore context
2. Context - Low frequency behaviour allows upper level to be the context of lower level - context is either spatially larger or more constant over time than lower level : the fact that summer follows spring sets the context for plant growth : that which is constant NB unpredictability can be “constant” and therefore context
B Cells aggregated to form a tissue are an example of a lower level being contained by a higher level C Food chain hierarchies represent non-nested systems where the higher levels do not contain the lower levels cells are contained(nested) food chains are non-nested
B Cells aggregated to form a tissue are an example of a lower level being contained by a higher level. C Food chain hierarchies represent non-nested systems where the higher levels do not contain the lower levels. • cells are contained (nested) • food chains are non-nested
Carnivore Carnivore x Grazer Grazer Plant Plan Plant @分
3. Containment The constituent parts are contained within each other Higher levels contain(bound)lower levels The organism contains the higher frequency components cells turn over faster than the organism Nested contained systems tend to be scale-dependent organIsms, populations, species Definition of non-nested hierarchies more observer. dependent communities ecosystems EARTH??
3. Containment - The constituent parts are contained within each other - Higher levels contain (bound) lower levels - The organism contains the higher frequency components : cells ‘ turn over’ faster than the organism - Nested contained systems tend to be scale-dependent : organisms, populations, species - Definition of non-nested hierarchies more observerdependent : communities : ecosystems EARTH??