Fauna

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Fauna

• Can anything made by man, even get close to
  beauty of nature?

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R.B.
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THE END
THE END
The End
R. B.
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Dynamic Equilibrium of Ecosystems

• Every creature has a purpose!
• Everything that ABOUT the creature has a purpose
• Every species has a niche

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Nature has a way of keeping things balanced
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Biodiversity

• Biodiversity is the total variety of life on
  earth. It includes all genes, species and
  ecosystems and the ecological processes of which
  they are a part (Convention on Biodiversity,
  1992)

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Ways to maintain biodiversity

• Migration
• Natural Disasters
• Disease
• Adaptation
• Climate fluctuations
• Name some more????
• Conservation- human action

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Migration

• Why do birds migrate?
• What happens to the migration patterns when
  climate changes?
• Think about and write it down!!!

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• Short Distance Migrations Warmer temperatures
  may help birds that travel short distances. They
  are able to expand their ranges. For example, the
  Tufted Titmouse is found in more northern areas
  each year.
• Long Distance Migrations Changing seasonal
  temperatures disrupt the timing of some birds.
  This is dangerous for birds that have especially
  long migration routes. If birds leave later and
  later each year, they risk not arriving at their
  destination in time.
• Stop Migrating Some birds may stop migrating
  all together if winters become milder each year.
  These birds then face the danger of surprise cold
  periods.
• Rising Sea Levels Higher sea levels from
  melting ice at poles are destroying wetlands
  around the world. Estuarine systems are being
  becoming more saline and food chains that support
  migratory birds get disrupted. Birds rely on
  wetlands for rest stops.
• Expanding Deserts Some birds, especially those
  that migrate from Europe to Africa need to travel
  over large deserts. Deserts are becoming larger
  because of dryer climates. This means that birds
  face the risk of having to travel over larger
  areas before being able to find water, food, and
  rest.

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Human Factor

• Climate changes
• Habitat destruction/fragmentation
• Reduction of biodiversity
• Empty nichesunbalanced
• Introduction of non native species
• Lack natural control factors
• Conservation
• National Forests
• Endangered Species Act

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Habitat destruction/fragmentationReduction of
biodiversityEmpty nichesunbalanced
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Habitat fragmentation

• Above and beyond habitat loss
• Isolation reduced immigration, re-colonization
• Edge effects

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Nonnative species

• Competitive
• Large leaf area
• Rapid growth rate
• Often in dense stands
• Strong reproductive pressure
• Early maturity
• Prolific seed production
• Vegetative reproduction
• Tolerant and adaptive
• Rapid response to disturbance
• Release from natural enemies
• Hybrid vigor

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Some species of particular concern to forest
management
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Conservation

• National Forests
• Endangered Species Act
• 2010 Photo Gallery

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Natural Disasters

• ABC News - Japan Earthquake before and after -
  Part 2
• Name some Natural Disasters
• Clears the land and helps to initiate succession.
  

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Recap!

• Ecosystems are sensitive.
• Everything has a purpose.
• All actions that are placed upon an ecosystem
  influence more then just that single aspect.