Lecture 3 Flashcards
what type of a matrix is this?
perforated matrix
do all landscapes have a definable matrix?
no
compare absolute versus relative scale?
absolute is actual distance or time or area whereas relative is absolute scale based on some…
what are the three core effects of the matrix?
- movement and dispersal
- abiotic environment
- resource base
identifying landscape elements is what dependent?
scale
what kind of a matrix is this?
sub-divied matrix
what are 3 characterisitcs the matrix generally has compard to patches?
- generally larger
- usually has concave coundaries (patches are rounded)
- iterconnected with narrows
describe extent in terms of anthropogenic perspective
is the total area under management consideration
what are the 3 pillars of landscape ecology?
- broad scale 2. human influence 3. spatial heterogenity
define extent from an organism-centered perspective:
is the range at which a relevant object can be distinguished from a fixed vantage point by the organism.
what are 4 landscape elements?
- matrix 2. patches 3. corrdiors 4. eco-tones
describe grain from an anthropogenic perspective.
finest unit of management
what is the 3 criteria to identify the matrix?
- area! Has the largest area!
- connectivity, can be connected in both physical and functional ways.
- control: if that landscape exerts a lot of control over the landscape it is likely the matrix.
compare extent versus grain size
extent is the size of the overall study area
grainsize is the finest spatial resolution of a data set
define grain from an organism centered perspective:
is the finest component of the environment that can be differentiated up close by the organism
