Alnus rubra - Pacific Northwest

This species is complete.

September 5, 2009 by Michael Case

Author(s) Expertise: 5

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Sensitivity Factor	Sensitivity Help 1 - 7 (one being least sensitive, seven being most sensitive)	Confidence Help 1 - 5 (one being least sensitive, five being most sensitive)
Generalist/Specialist	2 Medium-Low	4 Good
Physiology	1 Low	4 Good
Life History	1 Low	4 Good
Habitat		3 Fair
Dispersal Ability	3 Medium	4 Good
Disturbance Regimes	2 Medium-Low	3 Fair
Ecology	2 Medium-Low	4 Good
Non-Climatic	1 Low	4 Good
Other (weight)		3 Fair

Sensitivity Score Help: 20 Low

Sensitivity Score

100 * [(0.5 *(Dispersal Distance + Dispersal Barriers) + Disturbance Regimes + (0.5 * Generalist/Specialist) + Physiology + (0.5 * Life History) + Sensitive Habitats + Ecology + Non-Climatic Stressors + (Other * Weight) / 49 + (7 * Weight)]

Note: if Sensitive Habitats are identified, this factor automatically gets a value of seven, otherwise it remains zero.

Confidence Score Help: 3 Fair

Confidence Score

The Confidence Score is an average of the Confidence column above.

Overall User Ranking: 2 Medium-Low

Common Name:

Red Alder

Is this Species completed:

Yes

Taxonomy

This is a description of the whole group

Scientific Name:

Alnus rubra

Geography:

Pacific Northwest

Realm:

Terrestrial

Kingdom:

Plant

Phylum:

Anthophyta

Class:

Dicotyledoneae

Order:

Fagales

Family:

Betulaceae

Genus:

Alnus

Global Rank:

G5 (1984)

Rounded Global Rank:

G5 - Secure

IUCN:

Not Listed

US Endangered Species Act Code:

Not Listed

TGTID:

136265000

Species Element Code:

PDBET01060

Species Global ID:

136265

Generalist/Specialist

Broadly, where does this species fall on the spectrum of generalist to specialist? :

Confidence in your assessment of the degree to which the species is a generalist or specialist:

4 Good

Physiology

Species' physiological sensitivity:

1 low sensitivity

Confidence in how physiologically sensitive the species is to climate change:

4 Good

Life History

Species' reproductive strategy:

1 r-selection (many offspring, short generation time, e.g., fruit fly)

Confidence in your assessment of the species' reprodcutive strategy:

4 Good

Sensitive Habitats

Confidence in whether the species depends on the listed sensitive habitat types:

3 Fair

Level of philopatry:

none

Dispersal Ability

Maximum annual dispersal distance:

1-5km

Confidence in maximum annual dispersal distance:

4 Good

Within the context of dispersal distance above, do barriers to dispersal exist?:

1 None

Confidence in barriers to dispersal exists:

4 Good

Disturbance Regimes

How sensitive is this species to one or more disturbance regimes:

2 slightly sensitive

Confidence in how sensitive is this species on one or more disturbance regimes:

3 Fair

Please check all disturbance regimes upon which the species is sensitive:

Flooding

Ecological Relationships

Please specify which of the following (if any) are sensitive to climate change for this species:

habitat

Confidence in how sensitive the species is to other effects of climate change on its ecology:

4 Good

How sensitive is this species’ ecological relationships to the effects of climate change?:

Interacting non-climatic stressors

To what degree do other, non-climate-related threats, to the species make it more sensitive to climate change?:

1 not at all

Confidence in the degree to which non-climate-related threats affect the species' sensitivity to climate change:

4 Good

Other Sensitivities

Confidence in other critical factors:

3 Fair

Confidence in the degree to which these factors make this species sensitive to climate change:

3 Fair

What weight should these factors have on the overall sensitivity of this species to climate change:

Overall User Ranking

In your opinion, how would you rank the overall sensitivity of this species to climate change?:

Confidence in your overall assessment of the sensitivity of this species to climate change:

3 Fair

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Climate Change Sensitivity Database

Alnus rubra - Pacific Northwest

Sensitivity Score

Confidence Score