#23-Landscape Ecology + Ecosystem Management Flashcards
What is landscape ecology?
Causes and consequence of spatial variation across a range of scales
What is a landscape?
Area in which at least one element is spatially heterogenous
- includes multiple ecosystems
What is a mosaic?
A composite of heterogenous elements
Ecosystems that make up landscapes have what interactions?
Energy
Water
Nutrients
What is landscape composition ?
Kinds of element of patches and how mud if each kind is present
What is landscape structure?
Physical configuration of the landscape element
What is grain?
Size of the smallest homogenous unit of study (pixel)
- determines resolution
What is extent?
Boundary of the area encompassed by the study
What does fragmentation result in?
More edge effects
Where are hotspots for biogeochemical turnover?
Interfaces between terrestrial and aquatic ecosystems
Landscape patterns are caused by?
Decrease in primary productivity
What does disturbance create ?
Landscape heterogeneity
How can biodiversity be sustained ?
Reserves connects across the landscape
Buffered from human activities
What are core natural areas?
Where conservation and biodiversity can ecological integrity takes precedence over other uses
What are buffer zones ?
Large areas with less stringent controls on land use, but still provide habitat for many species
What are biological reserves ?
Smaller reservoirs with conservationists of a single species or ecological community as the main objective
What are habitat corridors?
Linear patches that connect blocks of habitats
- reduces fragmentation
What does a successful restoration require?
Diagnosis of the state of the area
Goals of the restoration
Enough knowledge in order to recreate the desired ecosystem
What is GAP?
Gap analysis program
Identifying species of concern that aren’t properly represented
