Biology 2483A Lecture Notes - Lecture 22: Habitat Fragmentation, Indigo Bunting, Lake Superior
19 Dec 2017
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Document Summary
Global positioning systems (gps) allow ecologists in the field to document precise locations of species and other variables. Radiotelemetry allows tracking of animal movements and migration patterns. Landscape ecology - examines spatial patterns and their relationship to ecological processes and changes. It emphasizes the causes and consequences of spatial variation across a range of scales: landscape ecologists look at the spatial arrangement of landscape elements across. Earth"s surface: landscape elements: forest patches, soil types, lakes, etc, these patterns influence what species live in an area, and the dynamics of ecological processes. Landscape composition: the kinds of elements or patches and how much of each kind is present: example from yellowstone national park, five kinds of elements lodgepole pine stand age classes. Grain size of the smallest homogeneous unit of study (e. g. , a pixel in a digital image); it: grain affects the quantity of data that must be manipulated.
