2000
DOI: 10.15760/etd.312
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Genetic Substructure of Pacific Harbor Seal (Phoca vitulina richardsi) Populations Along the Coasts of Oregon and Washington

Abstract: It has been assumed that the considerable dispersal ability of many marine species would prevent genetic divergence in the absence of geographic isolation. However, recent work has shown that many marine species often develop differentiation among areas within their known dispersal range. This 'paradox' of marine divergence is particularly important among marine mammal species where behavior can restrict gene flow. To

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Cited by 3 publications
(4 citation statements)
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References 85 publications
(92 reference statements)
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“…Understanding which factors influence hauling out behaviour is important both for calibrating surveys (e.g., Olesiuk et al 1990), as well as for understanding how disease transfer at haulout sites might be influenced by environmental fluctuations (Lavigne and Schmitz 1990;Grellier et al 1996). A number of factors seem to influence hauling out behaviour, including haul-out substrate, tide height, time of year (relative to breeding and moulting periods), time of day, temperature, wind speed, precipitation, cloud cover, the occurrence of storms, disturbance, El Nifio events, and location (Boulva and ~ McLaren 1979;Terhune 1987a, 1987b;Yochem et al 1987;Watts 1992: Grellier et al 1996Hanan 1996), thus it seems that locationspecific studies are needed for developing survey calibration factors. Use of land-based sites is typically restricted to a few tens of meters from shore (though see exception above in Distribution and Movements).…”
Section: Habitatmentioning
confidence: 99%
See 1 more Smart Citation
“…Understanding which factors influence hauling out behaviour is important both for calibrating surveys (e.g., Olesiuk et al 1990), as well as for understanding how disease transfer at haulout sites might be influenced by environmental fluctuations (Lavigne and Schmitz 1990;Grellier et al 1996). A number of factors seem to influence hauling out behaviour, including haul-out substrate, tide height, time of year (relative to breeding and moulting periods), time of day, temperature, wind speed, precipitation, cloud cover, the occurrence of storms, disturbance, El Nifio events, and location (Boulva and ~ McLaren 1979;Terhune 1987a, 1987b;Yochem et al 1987;Watts 1992: Grellier et al 1996Hanan 1996), thus it seems that locationspecific studies are needed for developing survey calibration factors. Use of land-based sites is typically restricted to a few tens of meters from shore (though see exception above in Distribution and Movements).…”
Section: Habitatmentioning
confidence: 99%
“…Some predation by Northern Sea Lions, Eumetopias jubatus (Pitcher and Fay 1982) as well as Coyotes (Steiger et al 1989) has been documented, and aggression by Northern Elephant Seals (Mirounga angustirostris) towards Harbour Seals has been seen at one site in California (Mortenson and Follis 1997). Interspecific competition with other rapidly increasing pinniped populations may also influence population growth (Hanan 1996). Injury during storms has been reported as a source of injury (Wilke 1943), and separations of mothers and pups during storms can be quite frequent (Boness et al 1992).…”
Section: Sources Of Mortality and Potentially Limiting Factorsmentioning
confidence: 99%
“…Analysis of neutral molecular markers such as microsatellites can be used to calculate Ne and provide an evolutionary perspective to these conservation and management issues (King et al, 2001). Genetic studies conducted on harbour seals have generally used less than 15 microsatellite markers for ''Atlantic'' harbour seals (12 in Olsen et al (2017); 15 in Anderse et al (2011); 7 in Goodman (1997); Goodman (1998)) and less than 20 for ''Pacific'' harbour seals (5 in Burg et al (1999), 8 in Curtis, Stewart & Karl (2011), 7 in Dishman (2011), 20 in Hayes et al (2006) and 6 in Herreman et al, 2009). We used the markers developed specifically for harbour seal microsatellites (Allen et al, 1995;Coltman, Bowen & Wright, 1996;Goodman, 1997) and a mix of pinniped microsatellite markers (Allen et al, 1995;Buchanan et al, 1998;Davis et al, 2002;Gelatt et al, 2001), as other harbour seal microsatellite papers (ex.…”
Section: Introductionmentioning
confidence: 99%
“…Analysis of neutral molecular markers such as microsatellites can be used to calculate Ne and provide an evolutionary perspective to these conservation and management issues (King et al 2001). Genetic studies conducted on harbour seals have generally used less than 15 microsatellite markers for "Atlantic" harbour seals (12 in Olsen et al (2017); 15 in Andersen et al (2011); 7 in Goodman (1997Goodman ( , 1998) and less than 20 for "Pacific" harbour seals (5 in Burg et al (1999), 8 in Curtis et al (2011), 7 in Dishman (2011), 20 in Hayes et al (2006) and 6 in Herreman (2009)). We used the markers developed specifically for harbour seal microsatellites (Allen et al 1995;Coltman et al 1996;Goodman 1997) and a mix of pinniped microsatellite markers (Allen et al 1995;Buchanan et al 1998;Davis et al 2002;Gelatt et al 2001), as other harbour seal microsatellite papers (ex.…”
Section: Introductionmentioning
confidence: 99%