Please read and ANNOTATE the article The Loaming Threat of Overgrazing Effects and Recommendations Consider this How does the increasing population in East Africa and the increased amount of land needed for housing and agriculture impact the grassland habitat cattle and wildlife p ID: 299022
Download Presentation The PPT/PDF document "Population Dynamics of Wildlife and Catt..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Population Dynamics of Wildlife and Cattle in East Africa
Please read and
ANNOTATE
the article “The Loaming Threat of Overgrazing: Effects and Recommendations”Slide2
Consider this…
How does the increasing population in East Africa, and the increased amount of land needed for housing and agriculture impact the grassland habitat cattle and wildlife populations that need to survive?Slide3
What resources do grazing cattle populations and wildlife need to share?
(Brainstorm w/your lab groups)Slide4
Research Groups
Lab Group #1
Lab Group #2
Elephant
Hippopotamus
Zebra
Rhinoceros
WildebeestCape Buffalo
Lab Group #3Lab Group #4GiraffeWarthogThomson’s GazelleBaboon
Lab Group #5Lab Group #6TermiteCheetahFishLeopardHyena
Lab Group #7
Lab Group
#8
Crocodile
Lion
Monitor
Lizard
Impala
LocustSlide5
What are the food and habitat requirements for each of these species?
Habitat Requirements: Grassland, Woodland, River
Food Requirements: Browser, Grazer, Predator
Browser = animal that eats twigs, shrubs, or other generally higher vegetation
Grazer = animal that feeds mostly on grass or other lower vegetation
Predator = animal that naturally preys on other animals. Slide6
Create a table with four columns on a chart paper:
Species
Habitat
Food
Competition w/Cattle
(High, Low, None)Slide7
Gallery Walk
Do you see any patterns between wildlife species basic needs and the degree of competition with the cattle?Slide8
What are the challenges of studying wildlife populations with hose of cattle?
Wildlife
Cattle
Hard to count
Easy to count
Variables differ greatly among species
Variables are the same
Multiple sampling methods needed
Few sampling methods neededDifficult to conduct genetics studiesEasy to conduct genetics studiesYou have already explored what factors ranchers consider when managing herd size. Now you are going to explore ways that wildlife population can be manage.Slide9
Pros & Cons
Goal
Method
Pros
Cons
Population Control
Culling
CheapEthical questions
Licensed HuntingProvides IncomeEthical questionsContraceptive methodsMay be ineffective, not applicable to all speciesExpensiveHabitat Limitation
FencingEffective. Deters poachersExpensive. Unsightly. Interferes with natural migration.Natural BarriersCheap. Needs little maintenance. May be ineffective.Slide10
Ranchers Income Over Time
Cattle herding with no herd management or wildlife management may provide more income initially, but results in overgrazing and risks herd declines, yielding least income over time.
Cattle herding with sustainable grazing provides stable income, although less income initially.
Cattle herding with sustainable grazing and wildlife management provides more income than managed herding alone. Slide11
Socratic Seminar
Can cattle and wildlife be managed so that both populations can thrive in Kenya's grassland ecosystem?Slide12
Evaluate
In your science notebook: Write one sentence in a science journal that summarizes how managing both cattle and wildlife populations benefits ranchers and the grassland ecosystem.