Slideshow 2 Flashcards
Who was the Quote -The Roots written by
Arthur Tansley
What are the 4 main aspects from THE ROOTS quote
Every genuine worker in science is an EXPLORER,
ADAPT his
material and mental equipment.
IMAGINATIVE,
and determined
SAFE results, ecology is not recommended
What are the 3 big questions about the roots of diversity
- How did such a variety of life arise?
- How is it all maintained?
- What would happen if it were lost?
What is community/population ecology
branch of science focused on
understanding Earth’s biodiversity, including the generation,
maintenance and distribution of the diversity of life in space and time.
What is a community
A group of species that occur together in space and time
What is the Superorganism concept
groups of organisms could be thought as one organism
What is the Individualistic concept of communities
based on the premise of a continuum or gradient of plant distributions
What is needed for the INDIVIDUALISTIC CONCEPT OF COMMUNITIES to exist
(i)
Highly discreet resources
(ii) In environments with sharp ecological boundaries
how was the idea of limited membership supported
mathematical theories on population growth
and species interactions
What was the key outcome of the limited membership mathematical model
Two species competing for a single resource cannot coexist
What is gaussians competitive exclusion principal
Two species cannot coexist on one limiting resource
What is hutchinsons definition of a niche
Quantifying an organism’s niche, including both biotic and abiotic
dimensions of the environment, as axes of an n-dimensional hypervolume
What is a fundemental niche
Those parts of the environment
a species could occupy in the
absence of interactions with
other species
What is a realized niche
The parts of the environment a
species actually occupies in the
presence of interacting species
Does interspecific or intraspecific competition limit the coexistence of species in the same niche
interspecific
What is Hutchinson’s Ratios
LENGTH (By a factor of 1.3)
BODY MASS (By a factor of 2)
What is the concept of limiting similarity
able to specify the minimum niche difference OR maximum niche overlap
That will allow two species to coexist
concept of limiting similarity K
resource continuum
concept of limiting similarity W
is the standard deviation of a species resource use
concept of limiting similarity d
The distance between the mean of two adjacent resource curves
What is the Null Model Debate
increase in emphasis on field experiments to test
ecological hypotheses.
