Your SlideShare is downloading. ×
0
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
12 3 Wildlife Ecology
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

12 3 Wildlife Ecology

325

Published on

Published in: Technology, Sports
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
325
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
5
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Natural Resources Wildlife Ecology
  • 2. KEYSTONE SPECIES <ul><li>A species in the environment that has a disproportionate impact relative to its abundance in the ecosystem </li></ul><ul><li>Usually predators but could be a common prey species </li></ul><ul><li>Example: </li></ul><ul><ul><li>Prey: - Rabbits </li></ul></ul><ul><ul><li>Predator: - Wolves </li></ul></ul><ul><ul><li>Beavers: - Modify habitat </li></ul></ul>
  • 3. Example <ul><li>What happens when a family of beavers dams a creek? </li></ul><ul><li>What habitat changes take place? </li></ul><ul><li>What species can no longer survive there? </li></ul><ul><li>What species might migrate in? </li></ul>
  • 4. Wildlife Management <ul><li>Reductionist – concentrates on management and research of single populations </li></ul><ul><li>Holistic – concentrates on management of the entire ecosystem </li></ul>
  • 5. Ecological Scale <ul><li>Individual Organisms </li></ul><ul><li>Populations </li></ul><ul><ul><li>Group of interbreeding individuals of the same species </li></ul></ul><ul><li>Communities </li></ul><ul><ul><li>Interacting Populations of different species </li></ul></ul><ul><li>Ecosystem </li></ul><ul><ul><li>Living and non-living factors in a given area </li></ul></ul>
  • 6. Holistic Management <ul><li>All organisms within an ecosystem are interdependent on the other organisms and species for their existence </li></ul><ul><li>Example: </li></ul><ul><ul><li>When wolves are present in Yellowstone Park, the abundance and diversity of songbirds increases. Why? </li></ul></ul>
  • 7. Ripple Effect <ul><li>Each organism has a niche in its environment </li></ul><ul><li>When the role is not fulfilled, there are repercussions & adjustments throughout the ecosystem </li></ul>
  • 8. Yellowstone Study <ul><li>When wolves are present, moose and elk do not graze in the streams and streambanks </li></ul><ul><li>When moose don’t graze on streambanks, the plant diversity and abundance increases </li></ul><ul><li>When the plant diversity and abundance increases, the bird habitat is improved </li></ul><ul><li>When the bird habitat is improved, the abundance and diversity of songbirds increases </li></ul>
  • 9. Over Population Problems <ul><li>Suburban areas have severe over-population of White-tailed deer </li></ul><ul><li>Nuisance to home-owners </li></ul><ul><li>Danger to drivers </li></ul><ul><li>Risk of disease & damage </li></ul><ul><li>Hunting is not an option </li></ul>
  • 10. Non-lethal control <ul><li>Strategy A . Identify, evaluate and use effective non-lethal deer management techniques. </li></ul><ul><li>Non-lethally in suburban habitats. </li></ul><ul><ul><li>Those designed to manage herd size, such as fertility controls; </li></ul></ul><ul><ul><li>Those intended to control movement or other behavior, such as fencing and repellents. </li></ul></ul><ul><li>Where traditional methods are not practical or desirable. </li></ul><ul><li>Deer fertility control is being studied </li></ul>
  • 11. Lethal Control <ul><li>Strategy B . Identify, evaluate and use effective lethal deer management techniques. </li></ul><ul><li>Currently, lethal control is the only viable means to control deer populations on the large scale. </li></ul><ul><li>Regulated hunting will remain a cornerstone of deer population control effort </li></ul><ul><li>Use of sharpshooters and trap and euthanize efforts </li></ul>
  • 12. Special Harvest Practices <ul><li>Quota Hunts – Pre-apply to hunt in areas with too many hunters for the animal population </li></ul><ul><li>Managed Hunts – Hunting in usually restricted areas to reduce the population. Must pre-apply and be selected – may have to attend training </li></ul><ul><li>Earn a Buck (EAB) – In over-populated counties </li></ul>

×