Plant Communities (GO) and ID keys and Mccdougal paper Flashcards Preview

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Flashcards in Plant Communities (GO) and ID keys and Mccdougal paper Deck (16):
1

What are some early season herbaceous species associated with GO?

- Common Camas (Camassia quamash)
- Trout lily (Erythronium oregonum)
- Shooting Star (Dodecatheon hendersonii)
- Buttercup (Ranunculus occidentalis)
- Great Camas (Camassia leichtlinii)
- Broom Moss (Dicranum scoparium)
- Miner's Lettuce (Montia perfoliata)
- Rock Moss (Rhacomitrium canescens)

2

Why does the BC coast have high diversity in mosses and lichens?

Wet
- Mosses and lichens difficult to key due to high diversity on coast

3

What species are you likely to find associated with GO bedrock outcrops?

- Broom Moss (Dicranum scoparium)
- Rock Moss (Rhacomitrium canescens)

4

What other species may be found associated with GO communities (non-early season herbaceous)?

Festuca roemerii (Roemer's fescue)
Bromus carinatus (California brome)
Melica subulata (Alaska oniongrass)
Elymus glaucus (Blue wildrye)
Symphoricarpus albus (Snowberry-shrub)

5

What is happening at the Christmas Hill site in Victoria?

CDF overtopping oaks, no real management of site

6

What is the desired state of GO?

Savannah, not woodland

7

Snowberry is a native species, but how is it also invasive?

Snowberry is an 'increaser' of the middle story and along with Indian Plum overshadows the meadow layer and detracts from savannah landscape

8

When is the ideal time to burn?

Spring: not too dry and the sun can solarize and cook the blackened burnt land surface

9

What is the state of the GO system at the NCC Maple Bay property?

Woodland well represented, but not savannah yet.
- Savannah side used to be a sheep farm and doesn't have enough native species left to re-establish after a burn

10

Take home messages from MccDougall paper

- Burning is good, essential even
- Need enough of the original (native) population left (seed bank)
- ie. need remnant communities in place already
- Stable
- Resistant (Don't change a lot)
- Resilient (Bounce back quickly)

11

Coppice

- Cut main stem and suckers (clones) spring up
- Cut growing leader promotes spreading base
- cut right to base, not just top buds
- get higher density of wood and thicket
- Used in England to build hedgerows (instead of fences)
- FN used on GO to get more wood

12

Physiognomic Key

- Based on Structure
- Advantages: Can be used anywhere in the world, easiest.
- tall, canopy cover

13

Floristic Key

- Based on composition and flora
- Need the name of the species
- Disadvantage: Need the reproductive parts which are not always available or may have been mowed down
- ex. BC Flora key

14

What is easiest kind of key to use? Why?

Physiognomic
- start with canopy cover and height
- Moving into habitat description gets tougher when describing species

15

Physiognomic vs. Floristic Keys

Physiognomic: Species free, only structural
-Can be used anywhere

Floristic: Species, not structure
- Specific to regions and locations
- Know species, then you know the structure

16

Higher-level physiognomic vegetation ... for GO surrounding ecosystem

Partially merged classifications of structure and species
- Formation class, formation sub-class, species