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Bio171-F08-lec%209 - Biology 171 Lecture 9 Monday Todays...

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Lecture 9: Monday September 22, 2008 Biology 171 Today’s Topic: Species Interactions: Herbivory & Predation Announcements This Week’s Discussion: Rewilding America & The World Without Us Review Session Sunday Sept. 28th 4-6pm Room TBA Text Reading: Lecture 9: 2 nd ed: Chapter 53 (1220-1225); Chapter 39 (904-907) 3 rd ed: Chapter 53 (1202-1205); Chapter 39 (882-888) Lecture 10: 2 nd ed: Ch. 53 (1225-9); Ch 27 (586-7) Ch 30 (682-6) 3 rd ed: Ch. 53 (1205-9); Ch 28 (572-3) Ch 31 (672-3) Herbivory; Importance of Insects Plant Defenses: Constitutive & Inducible Marine Herbivory; How if differs Passive & Active Suspension Feeding Predation Animal Constitutive & Inducible Defenses Predator-Prey Population Cycling
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1st Exam: Monday Sep. 29, 6-8pm If you require additional exam time due to a disability, please provide a signed SSD form to Dr. Wharton by Wed. Sept. 24th. If you have a serious and unavoidable time conflict with the exam period, make your case to Dr. Wharton via e-mail by Wed. Sept. 24th.
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1st Exam: Monday Sep. 29, 6-8pm Exam 1 Locations: Aud B Angell Hall Sections: 009, 034, 013, 031, 044, 045, 012, 021, 041 GSIs: Katie, Hannah, Andres Aud D Angell Hall Sections: 005, 010, 014, 033, 039 GSIs: Laury, Dana 1210 Chemistry Sections: 011, 017, 029, 030, 037, 043 GSIs: Susan, Gyorgy MLB AUD 3 Sections: 008, 025, 028, 019, 035, 040, 015, 020, 038, 007, 016, 042 GSIs: Keith, Ed, Devon, Dieter NS AUD Sections: 023, 026, 032, 006, 022, 036, 018, 024, 027 GSIs: Sean, Senay, Peter
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Broader Implications of Ecosystem Nutrient & Energy Dynamics The atoms (chemical nutrients) that constitute our bodies at any one point in time were previously part of other organisms/inanimate objects and, as we respire and eventually die, they will continue to be recycled indefinitely. The metabolic energy we are presently using left the sun a few weeks-years ago in the form of photons and will shortly radiate back to space as heat. Given that our material composition and our energy are both transient, what do we, or any other living organisms, actually represent in a scientific sense? A living entity…. contains heritable genetic information (genome) Organisms are an expressed manifestation of the information contained within their genomes.
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Interspecific Interaction Relationships between species of a community.
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An overview of energy and nutrient dynamics in an ecosystem.
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Familiar herbivores include deer, cattle and other large mammals. However, insects are by far the most important terrestrial herbivores
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Forest Tent Caterpillars Tent Caterpillars are the most abundant macroscopic animals in the boreal forest.
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