Biology 20C - Fall 1998
ECOLOGY AND EVOLUTIONARY BIOLOGY
Slides - Dispersion, Density, Scales and Methods
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A. DISPERSION, DENSITY and SCALES |
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1 |
Cartoon |
Distribution, density and dispersion |
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2 |
Table |
Densities of various species; units |
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3 |
Baja California |
Mangroves - sparse, clumped |
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4 |
Baja California |
Oysters on mangroves - dense, uniform |
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5 |
CA: Joshua Tree Nat. Mon. |
Joshua trees - sparse, random |
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6 |
Antarctica |
Weddell seals - sparse, random |
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7 |
Antarctica |
Crabeater seal - sparse, random, dead |
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8 |
CA: |
Mistletoe - random in trees; clumps among trees |
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9 |
CA: Death Valley |
Arrowweed - sparse, uniform |
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10 |
CA: Joshua Tree Nat. Mon |
Jumping cholla - sparse, uniform |
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11 |
Australia, Great Barrier Reef |
Giant clam - sparse, random |
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12 |
Australia, Great Barrier Reef |
Fish school - dense, uniform |
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13 |
Guatamala |
Floating vegetation - dense, uniform |
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14 |
CA: Natural Bridges |
Monarch butterfly - overwintering cluster |
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15 |
Australia |
Aphids - dense, uniform |
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16 |
CA: |
Limpets on algal stipe - uniform |
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17 |
CA: |
Starfish Pateria feeding clump, temporary |
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18 |
CA: |
Parasitic worms on Pateria |
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19 |
Antarctica |
Emperor penguins - dense, uniform in clump |
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20 |
Antarctica |
Adelie penguin - sparse, uniform in clump |
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B. METHODS |
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21 |
CA: Refugio |
Stream transect |
Relative N |
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22 |
Australia, Great Barrier Reef |
Quadrat and corals |
Absolute N |
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23 |
Australia |
Eucalyptus leaves 1 m2 quadrat |
Absolute N |
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24 |
Guatamala |
Peterson grab sampling sediments |
Absolute N |
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25 |
Diagram |
Peterson grab - functioning |
Absolute N |
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26 |
Guatamala |
Nansen bottle for plankton |
Absolute N |
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27 |
CA: Yosemite |
Deer ears (hard to sample) |
Relative N |
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28 |
Alaska |
Ptarmigan in snow (hard to sample) |
Relative N |
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29 |
Guatamala |
Stream sampling |
Relative N |
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30 |
CA: Refugio |
Aquatic insects in tray |
Relative N |
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31 |
CA: Pt. Mugu |
Seine netting |
Relative N |
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32 |
Guatamala |
Blacklighting for insects |
Relative N |
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33 |
Australia |
Clumped snails, eaten by rat |
Relative N |
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34 |
Australia |
Legs with allergic rash |
Relative N |
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35 |
Australia |
Spider egg cases |
Relative N |
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36 |
Guatamala |
Canoe and cichlids |
Relative N |
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37 |
Guatamala |
Phytoplankton chlorophyll conc. |
Relative N |
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38 |
CA: salt marsh |
Crab burrows |
Relative N |
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39 |
CA: UCSC |
Oak moth pupae on parking sign |
Relative N |
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