Ross G. Vennesland

Ross G. Vennesland
Environment Canada | EC · Canadian Wildlife Service

M.Sc, Simon Fraser University

About

15
Publications
4,003
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156
Citations
Introduction
I am a conservation and wildlife ecologist that focusses on species at risk, currently working as a Senior Species at Risk Biologist for the Canadian Wildlife Service of Environment and Climate Change Canada. In my current role I plan and implement conservation actions for species and ecosystems at risk, working on a diverse array of creatures (from jumping-slugs to plants to birds) and ecosystems (coastal-sand ecosystems to old forests).
Additional affiliations
January 2007 - January 2016
Parks Canada
Position
  • Species Conservation Specialist
Education
September 1997 - September 2000
Simon Fraser University
Field of study
  • Behavioral Ecology

Publications

Publications (15)
Article
Full-text available
The nesting behaviour of the Great Blue Heron (Ardea herodias L., 1758) was studied in western Canada in 1998 and 1999 to (i) investigate how individual parents assess risk when repeatedly exposed to a disturbance stimulus (an investigator) and (ii) experimentally test in the field whether any variation in their nest defense behaviour was due to ex...
Article
Full-text available
Surveys were conducted at 35 Great Blue Heron (Ardea herodias) colonies in urban and rural landscapes of south-coastal British Columbia, Canada, to investigate low nesting productivity during 1998 and 1999 compared to a decade ago. Nesting failure was common (59% of 1,247 nests) and widespread (in 90% of 31 colonies) and accounted for 96% of the va...
Chapter
Introduction Up to nine subspecies have been recognized by past researchers, based on differences in plumage color and morphology. Researchers have agreed that Florida‘s Great White Heron (A. h. occidentalis), the subspecies most distinctive in color (entirely white), and the Pacific Great Blue Heron (A. h. fannini) are distinct subspecies. Recent...
Article
In the next century, wading birds will have to deal with the cumulative impact of climate change, human population growth, and the recovery of avian predators. Conservation areas, established under former climate conditions and when there were fewer people and predators, might be inadequate to maintain wading bird populations in the future. We asse...
Article
Full-text available
Abstract Throughout history, humans have settled in areas of high biodiversity. Today these areas are home to our biggest urban centers with biodiversity at increasing risk from escalating cumulative threats. Identifying the management strategies to conserve species within such regions, and ensuring effective governance to oversee their implementat...
Preprint
Full-text available
This paper analyzes data from two studies that have compared the availability of suitable foraging habitat in known occupied home ranges compared to random locations where occupancy is not known.
Article
Full-text available
Using radiotelemetry we determined for a managed landscape, seasonal home-range sizes and habitat compositions of the threatened Haida Gwaii subspecies of the Northern Saw-whet Owl (Aegolius acadicus brooksi). We trapped 17 owls, and successfully monitored seven: four adult males from May-June 2011 (spring) and three owls (adult male, juvenile male...
Article
Habitat loss due to human development is a threat to colonial waterbird species, which require nesting habitat in proximity to productive aquatic foraging areas to ensure reproductive success. When development of habitat occurs, waterbirds must either tolerate the changes or relocate nesting colonies to habitat elsewhere. Land cover and nesting col...
Article
Full-text available
Fish Traps Threaten Pacific Water Shrew Recovery Kym Welstead and Ross Vennesland The Pacific Water Shrew Recovery Team has learned of several water shrews being killed in minnow traps during fisheries surveys. The many fisheries-related studies on the South Coast of British Columbia could therefore threaten this species at risk. The objectives o...
Article
Full-text available
His tor i cal data on the number of nests and nesting success for 242 Great Blue Heron colonies in British Columbia from 1920 through 1999 were compiled. The meth od ol o gies for data col lec tion differed over the years. We have developed and applied a standard meth od ol ogy for col -lect ing and inter pret ing nesting data to provide con sis te...
Article
Full-text available
Pink sand-verbena, Abronia umbellata, is an endangered plant found at only a handful of sites in coastal sandy beach and dune ecosystems from Baja California to southern British Columbia. Threats include demographic collapse, habitat alteration and disturbance, and invasive species. In Canada, pink sand-verbena is known from just three localities,...

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Projects

Projects (2)
Project
To investigate the availability of suitable foraging habitat for Northern Goshawk on the coast of British Columbia and its influence on occupancy of home ranges.