Wildlife Science Unit 1: Introduction to Wildlife Management

  • Wildlife Management

    • Balance the needs of wildlife with the needs of people using science

  • Common practices include:

    • Hunting/Fishing/Trapping

    • Selective burns and tree cuttings

    • Food plots

    • Conservation areas

6 Principles of Wildlife Management

  • Carrying Capacity

  • Limiting Factors

  • Territorialism

  • Harvestable Surplus

  • Cycles

  • Inter-dependence

Carrying Capacity

  • Maximum population of  a species that an environment can provide for, given the water, food, habitat, and other resources available

  • What resources are needed?

  • Important Components

    • Water

    • Food

    • Shelter/Habitat

      • Cover, nesting, escape plan

  • When resources disappear, animals become:

    • Aggressive

    • Less reproductive

  • Why are there changes in CC?

    • Increase in resources---animals/plants

    • Natural Disaster

    • Disease

    • Environmental Stresses---use all resources

    • Technology

Limiting Factors

  • Forces that holds back a population 

    • Slows the growth

      • Food, Water, Shelter, Space

    • Lack of something essential

    • Abundance of something bad

  • Improve by identifying the most prominent limiting factor and reducing it

Territorialism

  • A behavior in which animals establish and defend living and hunting areas against other competing members of their species

Harvestable Surplus

  • Number of animals that can be harvested from the population w/o long-term effects

  • Maintain stability of the population

  • Approximately 1/3 of the full population may be harvested

    • How?

      • Hunting

      • “Natural” Mortality 

        • Predator/Prey

        • Disease

        • Accidents

        • Starvation


Cycles

  • Annual Cycle for each species (short term)

    • Lowest population right after winter and highest in the spring

  • Predator/Prey Relationships

  • Natural Disasters

InterDependence

  • Plants and animals live in a complex, interrelated community

  • Everything works together and taking one thing out will reduce one and allow another to flourish

    • Decision-makers must understand the     relationships to deal effectively