Publications from Triangle Island Research

Ed note: This page was accessed at http://www.sfu.ca/biology/wildberg/bertram/triangle/trgpubs.html in December 2014. Note some links were not working at that time. Also note the lack of reference to the full title that should be used : “Triangle Island ( Anne Vallee) Ecological Reserve” Papers in Refereed JournalsHipfner, J.M., M.R. Charete and G.S. Blackburn. In press. Subcolony

Demographic Consequences of Early Development and Extreme Climate Events for Alcids on Trangle Island BC

Kyle  Morrison – 2009 – Simon Fraser University Master of Science Thesis See complete thesis pdf: http://summit.sfu.ca/system/files/iritems1/9472/etd4466.pdf ABSTRACT In long-lived species like seabirds, population growth rate is most sensitive to changes in adult survival, although juvenile survival and recruitment can also be important. The reproductive success of seabirds often varies greatly depending on climate-driven food

Ocean climate and El Niño impacts on survival of Cassin’s Auklets from upwelling and downwelling domains of British Columbia

Douglas F. Bertram, Anne Harfenist, and Barry D. Smith  Abstract: We report on the survival of populations of Cassin’s Auklet (Ptychoramphus aleuticus) that breed on two oceanic colonies in British Columbia: Triangle Island, near the northern end of the California Current Ecosystem, and Frederick Island to the north in the Alaska Current Ecosystem. We captured

Forage fish quality and implications for rhinoceros auklet chick growth.

Beaubier, J.  2005.  Thesis Proposal Summary.  Forage fish quality and implications for rhinoceros auklet chick growth.  University of British Columbia. Rhinoceros auklets breeding at Triangle Island provision their chicks with 4 main species of forage fish: pacific saury (Cololabis saira), pacific sand lance (Ammodytes hexapterus), juvenile rockfish (Sebastes spp.), and juvenile salmon (Oncorhynchus spp.), supplemented with a variety of other, less utilized species.  The relative composition of each species

Ornaments and overflight behaviour of Tufted Puffins (Fratercula cirrhata) breeding on Triangle Island,

Blackburn, G. 2004. Ornaments and overflight behaviour of Tufted Puffins (Fratercula cirrhata) breeding on Triangle Island, British Columbia. MSc thesis, Centre for Wildlife Ecology, Department of Biological Sciences, Simon Fraser University, Burnaby, BC. 74 pp. Tufted puffins (Fratercula cirrhata) are unusual among seabirds in that they bear multiple colourful ornaments during the breeding season. They

Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment inTufted Puffins (Fratercula cirrhatta) on Triangle Island, BC

Carina Gjerrum’s Thesis published in The Auk 121(2):463-472. 2004 Abstract I used a supplemental feeding experiment to determine whether adult Tufted Puffins (Fratercula cirrhata) would decrease provisioning effort in response to a reduction in nestling nutritional requirements, and to investigate the relationship between parental provisioning effort and timing of fledging. As predicted, parents of the

Short visits reveal consistent patterns of interyear and intercolony variation in seabird nestling diet and performance

D.F. Bertram, T. Golumbia, G.K. Davoren, A. Harfenist, and J. Brown  Abstract: To investigate the utility of short visits to seabird colonies to gauge nestling growth performance and diet, in 4 consecutive years (1995–1998) we measured nestling development and diet of Rhinoceros Auklets (Cerorhinca monocerata) at three colonies in British Columbia: Seabird Rocks, Triangle Island,

Nestling Growth and Parental Provisioning of Tufted Puffins

Gjerdrum, C. 2001. Nestling growth and parental provisioning of Tufted Puffins (Fratercula cirrhala) on Triangle Island, British Columbia. MSc, Simon Fraser University, Burnaby, BC. 117 pp. Masters of Science Thesis Abstract I studied the reproductive performance of tufted puffins (Fratercula cirrhata) on Triangle Island, British Columbia during two years when reproduction was successful. Complete reproductive

Survival rates of Cassin’s and Rhinoceros Auklets at Triangle Island, British Columbia.

Bertram, D. F., I. L. Jones, E. C. Cooch, H. A. Knechtel, and F. Cooke. 2000. Abstract: We estimated survival of Cassin’s Auklet (Ptychoramphus aleuticus) and Rhinoceros Auklet (Cerorhinca monocerata) from recapture rates during 1994-1997. For both species, a two “age”-class model provided the best fit. Estimates of local adult survival were significantly lower for

Egg neglect and its implications for egg predation in the Rhinoceros Auklet (Cerorhinca monocerata).

Blight, L.K. 2000. Egg neglect and its implications for egg predation in the Rhinoceros Auklet  (Cerorhinca monocerata). MSc, Centre for Wildlife Ecology, Department of Biological  Sciences, Simon Fraser University, Burnaby, BC. 103 pp. Depredation of island-nesting seabirds by introduced vertebrates is a conservation problem world  wide, particularly as marine birds have generally evolved in the

Predation on seabird eggs by Keen’s mice (Peromyscus keeni): using stable isotopes to decipher the diet of a terrestrial omnivore on a remote offshore island

M.C. Drever, L.K. Blight, K.A. Hobson, and D.F. Bertram Abstract: We used stable isotope techniques to analyze tissues of Keen’s mice (Peromyscus keeni) and Townsend’s voles (Microtus townsendii cowani) and a subset of prey items at Triangle Island, British Columbia, western Canada’s largest seabird colony. Isotope analysis allowed us to investigate the importance of seabird

PREDATION ON RHINOCEROS AUKLET EGGS BY A NATIVE POPULATION OF PEROMYSCUS’

LOUISE K. BLIGHT AND JOHN L. RYDER Department of Biological Sciences, Simon Fraser University, Burnaby, BC VjA I%, Canada, e-mail: lkbZight@sfu.ca   The Cooper Ornithological Society, 1999 DOUGLAS E BERTRAM Department of Biological Sciences, Simon Fraser University, Burnaby, BC V5A lS6, and Canadian Wildlife Service, PaciJc Wildlife Research Centre, RR1 5421 Robertson Road, Delta, BC

Parental provisioning, nestling departure decisions and prefledging mass recession in Cassin’s auklets

YOLANDA E. MORBEY*, RONALD C. YDENBERG*, HUGH A. KNECHTEL* & ANNE HARFENIST† *Simon Fraser University †Canadian Wildlife Service, Delta, British Columbia (Received 2 January 1998; initial acceptance 30 April 1998; final acceptance 13 October 1998; MS. number: A8109)  ANIMAL BEHAVIOUR, 1999, 57, 873–881 Article No. anbe.1998.1039, available online at http://www.idealibrary.com on We investigated how parental

Fledging variability and the application of fledging models to the behaviour of Cassin’s auklets (Ptychoramphus aleuticus) at Triangle Island,

Knechtel, H.A. 1998. EFFECTS OF AGE, GENDER, AND CONDITION ON THE REPRODUCTIVE EFFORT OF CASSIN’S AUKLETS (Ptychorampus aleuticus) ON TRIANGLE ISLAND, BRITISH COLUMBIA. MSc, Simon Fraser University, Burnaby, BC. 96 pp. ABSTRACT The primary goal of my research was to determine the effects of age, gender, and individual phenotypic quality (body reserves and immune function)

Fledging variability and the application of fledging models to the behaviour of Cassin’s auklets (Ptychoramphus aleuticus) at Triangle Island,

Y.E. Morbey , 1995 wrote this 125 page report : Morbey, Y. 1995. Fledging variability and the application of fledging models to the behaviour of Cassin’s Auklets (Ptychoramphus aleuticus) at Triangle Island, British Columbia. MSc, Simon Fraser University, Burnaby, BC. 125 pp. ABSTRACT: A seasonal decline in fledging mass is commonly reported in the Alcidae.