Challenges for Salmon Sustainability
Oct. 13, 2016
Dr. Scott Hinch
Department of Forest and Conservation Sciences, UBC
Issues can be compounded:
Eg. habitat and fisheries
Topics for today
1) What are the large challenges and
issues for salmon sustainabili
Linear Momentum, Conservation and Impulse Momentum is intertia in motion and is conserved for all interactions
where external forces don't interfere Momentum and Impulse By momentum we mean inertia in motion Definition:
Momentum Momentum= mass x velocity
Ionosphere lower thermosphere Biotic "Living Environment"
Includes all organisms
Mineral A naturally occurring, inorganic, crystalline solid with definite chemical composition and characteristic
physical properties. biome a large, relatively distinct terr
Rocky Mountains Range
9 Introduction to Conservation Science
CONS 101 What is conservation science?
The eld arose from two opposed views of
nature and our relationship to it
The RomanticTranscendental Conservation Ethic
From the writings of Ralph Waldo Emerson, Henry
o Some denitions
o Whats the big deal?
o Impacts of invasive species
o What makes a good invader?
o The 3 stages of invasion
o North American examples Some denitions
An alien nonFnative or introduced
Increased Tree Death Rates in
S. Daniels This research began in 1992
A. Stan L. Daniels Tree death rates have more than doubled in recent
decades in western old-growth forests,
a possible consequence of regional warming.
Invasive Species of Deer Lake
Emily Doan 34433136
Himalayan Blackberry (Rubus discolor)
The Himalayan blackberry, found abundantly around the edges of Deer Lake, is an invasive species of
Armenian and Iranian origin. It bears a large, berry-like fruit tha
Cons Quiz Questions
What is the biodiversity crisis, and what is its primary cause?
The biodiversity crisis is the rapid loss of species (at a rate equal to that of the extinction
of dinosaurs during the Cretaceous era). There are many factors
What is conservation science?
the field arose from two opposed views of nature and our relationship to it
Romantic-transcendental conservation ethic
Nature viewed in a quasi-religious sense-cleanse the human soul
Resource Conservation Ethic
intentional introductions-diverse taxa
for immigrants to "acclimatize"
Invasive species is one of the biggest threats to global biodiversity
increasing rate of introductions
5000 (up to 1985)
Global climate change
Climate change a brief overview
Some global indicators
Climate change mi<ga<on
poten<al for Carbon sequestra<on
Adap<ng to climate change
Arrhenius, S. 1896.
Whats the big deal?
Impacts of invasive species
What makes a good invader?
The 3 stages of invasion
North American examples
Whitebark pine: an ongoing conserva3on
o Whitebark pine: a keystone species
o Whitebark pine in BC distribu3on and
o Evidence for decline
o Causal agents
Mountain pine beetl