'Character displacement' presentation slideshows

What is a Community

What is a Community. A Community is any assemblage of populations in an area or habitat. Communities: Populations interacting; Population interactions shape communities.

1.27k views • 94 slides

Resource competition among >2 species

Resource competition among >2 species. One resource species with lowest R * excludes all others. example: species 1 excludes all others. Resource competition among >2 species. Two resources, essential Constant, homogeneous environment

1.06k views • 92 slides

Population Ecology

Population Ecology Populations are groups of potentially reproducing individuals in the same place , at the same time , that share a common gene pool . I. Spatial Distributions A. Dispersion. I. Spatial Distributions A. Dispersion - Regular. I. Spatial Distributions

859 views • 85 slides

Biology 105 - Evolution Dr. Theodore Garland, Jr. 5 Nov. 2015:

Biology 105 - Evolution Dr. Theodore Garland, Jr. 5 Nov. 2015: "Hybrid Zones, Character Displacement, Geographic Variation and Clines". Accompanies pages 467-469 and 65 in: Bergstrom, C. T., and L. A. Dugatkin. 2012. Evolution. W.W. Norton and Company.

737 views • 72 slides

Chapter 54

Chapter 54. Community Ecology. Overview: A Sense of Community. A biological community is an assemblage of populations of various species living close enough for potential interaction. Fig. 54-1.

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Lecture Outlines Chapter 4 Environment: The Science behind the Stories 4th Edition Withgott/Brennan

Lecture Outlines Chapter 4 Environment: The Science behind the Stories 4th Edition Withgott/Brennan. This lecture will help you understand:. Species interactions Feeding relationships, energy flow, trophic levels, and food webs Keystone species The process of succession

2.26k views • 69 slides

Community Ecology -- Interspecific Interactions

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573 views • 56 slides

Warm Up #4

482 views • 31 slides

Chapter 53

Chapter 53. Communities. What is a biological community?. An assemblage of species living close enough together so that there are potential interactions. What causes a community to have a certain assemblage of species?. Two contrasting views: INDIVIDUALISTIC HYPOTHESIS

483 views • 31 slides

14.4 Interactions Within Communities

281 views • 17 slides

Community Ecology

Community Ecology. Species Interactions. Communities are interacting populations of many species. There are five types of close interactions (symbioses) that help to determine the nature of communities: Predation Parasitism Competition Mutualism Commensalism. Predation.

339 views • 16 slides

Modeling Interspecific Competition Lotka Volterra

Modeling Interspecific Competition Lotka Volterra. Effect of interspecific competition on population growth of each species: dN 1 / d t = r max1 N 1 ((K 1 -N 1 - ? 12 N 2 ) / K 1 ) dN 2 / d t = r max2 N 2 ((K 2 -N 2 - ? 21 N 1 ) / K 2 )

1.45k views • 13 slides