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Wildlife and Fisheries - ✔✔Species or systems that involve consumptive and non-
consumptive use by humans
Wildlife - ✔✔All free living animals
Fisheries - ✔✔system that includes the fish, habitat and human users
Fish:single species
Fishes: multiple species
Management - ✔✔Manipulation of pop. or habits to achieve specific goals or endpoint
Manipulative management - ✔✔Acting on a pop., changing numbers by direct means
or influencing numbers by indirect means
ex. altering food supply, habitat
Custodial management - ✔✔Preventative or protective, minimize external influence on
pop. and habitat
Life-history - ✔✔Traits that describe the life cycle of an organism
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,ex. birth, death, reproduction., # of offspring
Conservation - ✔✔sustainable management and use of natural resources
Preservation - ✔✔leaving natural systems or resources as they are
basic unit of management - ✔✔the population, NOT the individual
Dynamic management - ✔✔art of making land or aquatic habitat produce a sustained
harvest of wildlife or fish
Ecosystem management goals - ✔✔- new more holistic/comprehensive approach to
conservation of biodiversity
- keep everyone on the same page
- designed to integrate ecology, socioeconomic and institutional perspective
Adaptive resources management - ✔✔flexible to unanticipated and complex outcomes,
continual reassessment and innovation
Adaptive management - ✔✔Type of natural resources management that implies
making decisions as part of an ongoing process
Communities - ✔✔Interacting assemblage of living organisms in an area; often divided
by plant and animal
origin of community ecology - ✔✔Stephen Forbes (1844-1930)
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,Community ecology - ✔✔oldest discipline in ecology, importance of interspecific
interactions in descriptive natural history
intraspecific competition - ✔✔competition between members of the same species
interspecific competition - ✔✔competition between members of different species
Indirect Competition - ✔✔consumption of a shared resource
Direct Competition - ✔✔interference or contest competition; organisms prevent access
or harm one another while seeking a resource
Population - ✔✔group of org. of the same species that occupy a space, close enough to
find and reproduce
Importance of population - ✔✔- how much can be harvested
- env. changes affect pop.
- predict when and why pop. goes extinct/endangered
- how pop affect eachother
- env. quality indicator
Population ecology issues - ✔✔- small/declining pop.
- restoration/ reintroduction
- wildlife epidemiology
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, - invasive species
- sustainable yield
Exponential growth - ✔✔dN/dT=rN
dN: Change in #
dT: change in time
r: exp. growth rate or pop. determined by # of young and survival rate
N: pop. size @ any moment
Exponential growth: non-overlapping generations - ✔✔N=Ro^+ No
N= pop. size @ end of reproduction
Ro: net replacement rate/generation
+: #of generations
semelparity - ✔✔occurrence of a single act of reproduction during an organisms
lifetime
iteroparity - ✔✔repeated production of offspring at intervals throughout organisms
lifetime
Logistic growth - ✔✔dN/dT=rN(1-N/K)
dN: change in #
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