Lecture 8

Question 1

how did shrubs and herbaceous species vary with the intensity of agricultural practices in the surrounding landscape?

Answer 1

1. fewer shrubs close to edge (ecotone) 2. more herbaceous species closer to edge/ecotone

Question 2

what are 4 characteristics of natural ecotones?

Answer 2

1. soft 2. low-contrast or gradual 3. curvilinear with coves and lobes 4. interactions and flows between landscape elements are relatively high

Question 3

what are 5 characteristics of human effected ecotones?

Answer 3

1. linear 2. hard and abrupt 3. high contrast 4. edge species concentrated and predominant because of contrast 5. interactions and flows between landscape elements are low

Question 4

what are 6 charateristics of ecotones?

Answer 4

1. unique micro-habitats 2. unique communities co-exist 3. compsitionally diverse 4. structurally diverse 5. functionally diverse 6. ecotones vary in space and in time

Question 5

what is a peninsula?

Answer 5

is a narrow extension or lobe of a patch that may function as a funnel to concentrate species or it may act as a barrier to movement between patches

Question 6

what is effected by edges?

Answer 6

species that are edge specialist and interior specialists

Question 7

where are edges and ecotones?

Answer 7

EVERYWHERE

Question 8

what are 2 fundamental concepts of ecotones?

Answer 8

1. every ecostone is a boundary space 2. ecotones are scale and observer dependent

Question 9

ecotones:

Answer 9

are transitional areas between adjacent ecological systems. Usually a unique assemblage

Question 10

what are the 6 types of ecotones?

Answer 10

1. gradual 2. environmental or abrupt 3. permanent 4. mosaic ecotones 5. peninsular 6. non-permanent