1. Habitat Fragmentation and Invasive Species
SNC1D

2. Habitat: the natural environment in which an organism lives, included food and shelter

3. Habitat: the natural environment in which an organism lives, included food and shelter
Many organisms lose their habitat to human development (cities, farms, etc.).

4. Habitat fragmentation: remaining wild areas are divided into smaller parts

5. Factors Affecting the Sustainability of Habitats
Size: large blocks support larger and therefore more stable populations and communities

6. Factors Affecting the Sustainability of Habitats
Size: large blocks support larger and therefore more stable populations and communities
One large block is better than an equal area of smaller blocks.

7. Factors Affecting the Sustainability of Habitats
Proximity: the closer areas are to each other, the greater the chance populations will be able to interact

8. Factors Affecting the Sustainability of Habitats
Proximity: the closer areas are to each other, the greater the chance populations will be able to interact
Wildlife corridors connect areas and further increase the chance of interaction.

9. Factors Affecting the Sustainability of Habitats
Integrity: access by roads and trails can increase pollution, hunting, and fishing

10. Factors Affecting the Sustainability of Habitats

11. Invasive species: a non-native species whose accidental or intentional introduction has a negative impact on the natural environment

12. Invasive species: a non-native species whose accidental or intentional introduction has a negative impact on the natural environment
Many invasive species have no natural predators in the new ecosystem.
The lionfish, with its venomous spines, is native to the Indian and Pacific Oceans but was introduced to Florida water.

13. Impacts of Invasive Species
Ecological: invasive species compete with or feed on native species

14. Impacts of Invasive Species
Ecological: invasive species compete with or feed on native species
Lionfish stomach contents

15. Impacts of Invasive Species
Economic and Tourism: damage to forests, agricultural areas, and tourist areas

16. Impacts of Invasive Species
Health: disease-causing organisms are introduced

17. Impacts of Invasive Species
Health: disease-causing organisms are introduced

18. Invasive Species Controls
Chemical: pesticides

19. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal

20. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal

21. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal
Example: the Cootes Paradise fishway

22. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal

23. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal

24. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal
Biological: adding more non-native organisms to control the invasive species

25. Invasive Species Controls
Chemical: pesticides
Mechanical: physical barriers or removal
Biological: adding more non-native organisms to control the invasive species
Example: insects released to control purple loosestrife