Pacific pond turtle (Clemmys marmorata) COSEWIC assessment and status report: chapter 12

Technical Summary

Clemmys marmorata

Pacific pond turtle – Tortue de l’Ouest

Range of Occurrence in Canada:

Previously found in British Columbia

Extent and Area information

extent of occurrence (EO) (km²) :

0 km²

specify trend (decline, stable, increasing, unknown):

N/A

are there extreme fluctuations in EO (> 1 order of magnitude)?

No

area of occupancy (AO) (km²) :

0 km²

specify trend (decline, stable, increasing, unknown) :

N/A

are there extreme fluctuations in AO (> 1 order magnitude)?

No

number of extant locations :

0

specify trend in # locations (decline, stable, increasing, unknown)

N/A

are there extreme fluctuations in # locations (>1 order of magnitude)?

No

habitat trend:  specify declining, stable, increasing or unknown trend in area, extent or quality of habitat :

Declining

Population information

generation time (average age of parents in the population) (indicate years, months, days, etc.)

>10 yrs

number of mature individuals (capable of reproduction) in the Canadian population (or, specify a range of plausible values) :

0

total population trend:  specify declining, stable, increasing or unknown trend in number of mature individuals :

N/A

if decline, % decline over the last/next 10 years or 3 generations, whichever is greater (or specify if for shorter time period).

--

are there extreme fluctuations in number of mature individuals (> 1 order of magnitude)?

--

is the total population severely fragmented (most individuals found within small and relatively isolated (geographically or otherwise) populations between which there is little exchange, i.e., < 1 successful migrant / year)?

Yes

list each population and the number of mature individuals in each.

--

specify trend in number of populations (decline, stable, increasing, unknown).

--

are there extreme fluctuations in number of populations (>1 order of magnitude)?

No

Threats (actual or imminent threats to populations or habitats)

Rescue Effect (immigration from an outside source)

does species exist elsewhere (in Canada or outside)?

In USA

status of the outside population(s)?

At risk

is immigration known or possible?

Unknown, possible

would immigrants be adapted to survive here?

Unknown

is there sufficient habitat for immigrants here?

No

Quantitative Analysis

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