Habitat Fragmentation

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Habitat Fragmentation Aazam Under the supervision of Dr .Varasteh Natural Resources and Environment Department 2017 

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Introduction Causes of Fragmentation Habitat islands Edge Effects Other Impacts Degree of Fragmentation Size Matters Staying Connected What is a “Buffer” Corridors 

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Habitat Fragmentation * Habitat fragmentation is the seperation of a landscape into various landuses (e.g, development, agriculture, etc.), resulting in numerous small, disjunct habitat patches left for use by wildlife. ٠ ‏266معن7عمتة عط دعطته065 16 ,دعنامطا عسهه عط كف‎ 05 discontinuities (fragmentation) in an organism's preferred environment (habita * This disconnection of naturé habitat amplifies the negati effects of decreasing total ‏أمغتطقط‎ baci 

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Causes of ‏ود‎ * Urbanization * Agriculture ¢ Transportation * Deforestation ‏َه‎ ‎* Resource Extractio * Flood control and hydroelectric dams * Oil and gas pipelines 

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SIAN cine Ure A a ee od ۱ ‏کر‎ LEAT Ne PACE TLCS DNS rd he) cane ao .V ke Porsvativa oP isolated putches oP kabitat. 

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Edge Effects * The effect of having more edge habitat and less interior space is that edge species increase and interior species decrease 

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Degree of Fragmentation + Large patches are typically considered more important than smaller ones because they tend to include more viable populations of native plants and animals, including species dependent on interior habitat ٠ ‏كعطء 3م الهمرد ععبع مص‎ can also be important conservation targets because they may contain unique or rare habitat types or species or may act as stepping stones. Small patches may کات تا ار ‎habitat for species that‏ ‎don’t have large area‏ ‎requirements.‏ 

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Size Matters!! * Larger patches have more interior habitat, while smaller patches have less or no interior habitat. medium 

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Size Matters!! * Populations are typically more stable and sustainable and less susceptible to local extinction in large patches than small patches. 

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Staying Connected ٠ Interconnectedness is an important feature of networks, as it facilitates species movement among patches. * Small interconnected patches provide cover, resting, and foraging habitats for animals en route to larger habitat patches. 

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What is a “Buffer” 00 eRe coe CS ‏ا‎ ‎an natural area. 1 ‏عصرم لقصوتاتعصدها لمسفدين د‎ RCE ero) ۱ associated with habitat fragmentation Pec et ee eee Sees ese cone tag 1 7 Seu 0 PN coset ten eet RC ‏امهم‎ ‎Pett ‏صمء؟ عموصة لمعم وعم عه‎ Poet acento 1۱ ‏ل‎ ‏صم‎ Cen tates a |! as encroachment. The desired width of a buffer Oe Gace tay 2 0000000000 Eten RELY ‏معطا مه دعوصم عصمط عط صم‎ Purine esse ۳ ۷ Hose ware: ۱ ‏سس‎ 

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Corridors * A Corridor is a natural or artificial connection between two pieces of fragmented habitat * corridors facilitate everyday home range movements, seasonal and breeding migrations, dispersal, and range shifts in response to 

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THE END Thank you for your time © Pelese take care of our Environment