... WHAT IS THE LOGISTIC GROWTH
• N/t rmaxN((K – N)/K)
• What kind of curve do we see with this?
• S curve
... 1) Interspecific competition – between two or more species
2) Intraspecific competition – between members of same species
... Relationship where the predator hunts and kills
the prey for food
Determines relationships in food webs and
regulates population size
Nature favors organisms that have adaptations that
... technology into botanical collections
A bit of plant ecology but will also
allow you to practice identifying trees
that you will see on a daily basis.
... • An ecosystem’s function depends on the patches and the physical relationships with each other. Various
relationships such as predators, herbivores, and mutualism need all need certain species in close areas. The ability
for an organism to move can have a wide-ranging impact. The biogeochemical pro ...
5 5 2 0 /
... the Scheldt estuary during the years 1989 till 1998. Sessile species can be indicator species for environmental
changes and insight in their habitat can be o f value during impact studies.
The monitoring took place at two locations: Ritthem and Kruiningen. The biodiversity o f the Ritthem over the
Interactions - ScienceGeek.net
... • When two species are competing for the
same resources, one species will be
better suited to the niche, and the
other species will be pushed into
another niche or become extinct
• Invasive species may outcompete
organisms that are native to a particular
... • Three warbler species
feed on spruce
• The tree is the
• Each has a unique
niche where they
prefer to gather food.
• There is some
overlap of niche
... Ability to survive and reproduce under a range of
... b. the way a species makes its living
Chapter 7 Homework
... each: native species, nonnative species, indicator species, and keystone species.
Explain why these labels are important.
Cornell Notes Template - Ms. Doran`s Biology Class
... tolerance-the ability to survive and reproduce under a range of
a. When an environmental condition extends beyond an
organisms optimum range, it experiences stress
b. This means more energy is used for homeostasis, and less
c. The species’ toleranc ...
... Def: The S-shaped growth curve that is generated by the
logistic growth equation
• In the logistic, a small population grows rapidly, but the
growth rate slows down, and the population eventually
reaches a constant size
Logistic Carrying Capacity:
The population size at which birth equals deaths and ...
Community Ecology Skills- vocab review key
... a. volcanic eruption, forest fire, flood, or
b. a relationship in which both participating
c. the entire range of conditions an
organism is potentially able to occupy
d. development of community in area which
has not supported life before
e. number of species in the community ...
In ecology, the occupancy–abundance (O–A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well-documented relationships in macroecology, and applies both intra- and interspecifically (within and among species). In most cases, the O–A relationship is a positive relationship. Although an O–A relationship would be expected, given that a species colonizing a region must pass through the origin (zero abundance, zero occupancy) and could reach some theoretical maximum abundance and distribution (that is, occupancy and abundance can be expected to co-vary), the relationship described here is somewhat more substantial, in that observed changes in range are associated with greater-than-proportional changes in abundance. Although this relationship appears to be pervasive (e.g. Gaston 1996 and references therein), and has important implications for the conservation of endangered species, the mechanism(s) underlying it remain poorly understood