PPT-Ecology 8310 Population (and Community) Ecology

Seguing into from populations to communities Species interactions LotkaVolterra equations Competition Adding in resources Species interactions Competition Predation Herbivory. Vegetation and Terrestrial Wildlife. Vegetation. Plant Communities. Disturbance. Unique Communities. Wildlife. Amphibians and Reptiles. Birds. Mammals. Terrestrial Ecology: Vegetation. Goals of vegetation sampling on ODOT projects. Population (and Community) Ecology. Predator-prey. Response to Thursday…. Empirical patterns:. Luckinbill's. experiments. Huffaker's. mites. Lake patterns in . phyto-zoop. as f(nutrients). Causes of positive increases in consumer-resource. Patch selection (e.g., Marginal Value Theorem). Prey selection (optimal diet theory). Moving beyond feeding (energy intake): predation risk. . (u/g). Patch selection. :. Consider a forager moving among many patches during a foraging bout (rodent among seed caches, pollinator among flowers, etc.). Beyond two trophic levels. HSS 1960. Oksanen. et al. 1981. Control, Limitation, Regulation. Bottom-up vs. Top-down. Trophic cascades. Beyond two trophic levels…. Why is the world green?. Observation: Plants are abundant; thus…. Patch selection (e.g., Marginal Value Theorem). Prey selection (optimal diet theory). Moving beyond feeding (energy intake): predation risk. . (u/g). Patch selection. :. Consider a forager moving among many patches during a foraging bout (rodent among seed caches, pollinator among flowers, etc.). Predator-prey theory. Basics (. Lotka-Volterra. ). Functional responses and risk. Effect on phase-planes. Dynamics. Paradox of enrichment. Predator interference and ratio dependence. How do predators respond to prey?. Context. Context. What accounts for the distributional limit?. d. ispersal (perhaps with . Allee. effects). b. iotic and abiotic factors. If environmental factors, then:. λ. (N≈0) > 1 within distribution. Population. ecology. Community. ecology. Ecosystem. ecology. Landscape. ecology. Global. ecology. Introduction to Ecology . Populations. Population ecology. Abundance. Dynamics . Density, dispersion, demographics, interrelationships with other populations. WORKSHEET. Go over Sections F, G, and H. AFTER THE QUIZ. Work on Section I. DO NOW. Get out EOC Daily sheet, worksheet, and notes. BIOLOGY EOC BIO47. The diagram below shows a plant’s response to stimuli.. and. Levels Of Organization in . Biology and Ecology. Springfield Central High School. Questions to Answer. Daily Problem Set Unit 2- #1. 1. . Explain what ecology is. . 2. . In the relationship between the lynx and the hare, what factors, biotic and . HW #1. Age-structured populations. Stage-structure populations . Life cycle diagrams. Projection matrices. Context: Sea . Turtle . Conservation. (But first … background). Population. Structure. :. 41:. Ch. 42:. Ch. 44:. Ecology. Ecology. : study of interactions between organisms and their environments – science of relationships, studied by ecologists. Abiotic . Factors:. non-living parts of an organism’s environment. Geography. Resources. Phylogeny. Community. Redrawn from Fauth . et al. . (1996). Community. – collection of species that occur at the same place & time, circumscribed by natural (. e.g. ., serpentine soil), arbitrary, or artificial (. abiotic. conditions. A traveler should be a botanist, . for in all views plants form . the chief embellishment. Charles Darwin,. The Voyage of the Beagle. Belize. Anza-Borrego Desert,. California. Manning Park.