ECU BIOL 1050 - Conservation Biology and Climate (3 pages)

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Conservation Biology and Climate



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Conservation Biology and Climate

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Lecture number:
32
Pages:
3
Type:
Lecture Note
School:
East Carolina University
Course:
Biol 1050 - General Biology
Edition:
1

Unformatted text preview:

BIOL 1050 Lecture 32 Outline of Last Lecture I Biodiversity II Biodiversity Outline of Current Lecture I II III Pollution Conservation biology Climate and global warming Current Lecture I Pollution a Acid rain i Caused by gases from burning fossil fuels mixing with water vapor in the air ii Kills organisms directing and indirectly through changes in soil and water iii Trees exposed to acid rain and acid fog have damaged leaves and decreased rates of photosynthesis Eventually many of the trees die iv Acid rain distribution 1 pH ranges from 0 14 2 Pure water has a pH of 7 3 Acid rain has pH as low as 4 3 b Ozone layer i Absorbs UV radiation preventing it rom reaching surface 1 Gradually thinned from the build up of CFC s 2 Increases rates of some cancers and cataracts 3 Reduces rates of photosynthesis II Conservation biology a An ecosystem disturbance is reversible when the disturbance although it alters the biotic and abiotic nature of the habitat does not include the complete extinction of any species so species can re establish their populations b Preserving species vs preserving habitats i Conservation efforts can focus on the preservation of individual species or important habitats ii Endangered species act preserves species iii Nature preserves habitats c Designing effective nature preserves These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute i The design of natural preserves has evolved Modern presrves focus on the use of several design features that maximize their efficiency including 1 Corridors setting aside narrow strips of land that connect larger natural preserves allows gene flow and reduces inbreeding among distinct populations in the different larger areas 2 Buffer zones preserves designed with core areas containing the habitat to be conserved surrounded by buffer zones in which limited amounts of human uses are permitted can sustain wildlife even as



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