List of Figures
Figure 1. Haul-out sites where harbor seal scat was collected
in the Salish Sea. Collection locations are indicated by black dots and
labeled with the name used throughout this paper. Coordinates for each
site are as follows; Comox: 49°35’45.53”N, 124°52’4.39”W, Fraser River:
49° 4’27.17”N, 123° 8’49.46”W, Belle Chain: 48°58’10.73”N,
123°29’34.63”W, Cowichan Bay: 48°44’14.28”N, 123°37’17.76”W, Baby
Island: 48° 5’58.31”N, 122°31’41.29”W.
Figure 2. Logit transformed average \(\text{PS}_{i}\) values
with 95% confidence intervals of all harbor seal scat from groups with
>5 samples (n = 1,083 scat samples). Average\(\text{PS}_{i}\) was calculated for each group. Groups were then split
be sex and lumped by season. Spring = April, May; Summer = June, July,
August; Fall = September, October, November. A lower value indicates
more specialization.
Figure 3. Average sample size with 95% confidence intervals of
harbor seal groups for analysis with >5 samples (n = 1,083
scat samples). Groups were then split be sex and lumped by season.
Spring = April, May; Summer = June, July, August; Fall = September,
October, November.
Figure 4. Logit transformed average \(\text{PS}_{i}\) values
with 95% confidence intervals of all harbor seal scat from groups with
>5 samples (n = 1,083 scat samples). Average\(\text{PS}_{i}\) was calculated for each group. Groups were then split
be sex and lumped by Month. The left graph shows females, the right
graph shows males. A lower value indicates more specialization.
Figure 5. Logit transformed average \(\text{PS}_{i}\) values
and 95% confidence intervals for all harbor seal scat from groups with
>5 samples (n = 1,083 scat samples). Average\(\text{PS}_{i}\) was calculated for each group. Groups were then split
by sex and location and then lumped by month. A lower value indicates
more specialization. BC = Belle Chain, BI = Baby Island, CB = Cowichan
Bay, CM = Comox, FR = Fraser River.
Figure 6. Model of resource distribution of harbor seals in the
Salish Sea. This theoretical schematic demonstrates the smaller
within-individual resource use of female harbor seals with regards to
benthic prey in the Salish Sea. A) Prey use distribution in the spring
(more specialist behavior by females). B) Prey use distribution in the
summer and fall (less specialist behavior by females).