Logic of Intermediate disturbance hypothesis

Slides:



Advertisements
Similar presentations
COMMUNITY ECOLOGY.
Advertisements

What are the combined effects of global climate change and biological invasions on insect community structure?
Chapter 53 Notes Community Ecology. What is a Community? A __________ is any assemblage of populations in an area or habitat. Communities differ dramatically.
COMMUNITY ECOLOGY.
Biology II - Community Ecology. Community Concept A community is an assemblage of populations interacting with one another within the same environment.
Community Ecology Chapter 47 Mader: Biology 8th Ed.
Biology, 9th ed, Sylvia Mader
Community Ecology Chapter 47 Mader: Biology 8th Ed.
Ecosystem Balance Test Review.
COMMUNITY BIODIVERSITY & DEVELOPMENT CHAPTER 52. SPECIES RICHNESS VS. SPECIES DIVERSITY Species richness = the total number of species in a community.
Community Diversity dynamics of community species composition.
Plant Ecology - Chapter 13
Marine Ecosystem Structure and Organisms Ecosystem = A biotic community and its interaction with the abiotic environment. Flow of Energy and Cycling of.
Lecture 13 Biodiversity I.What is Biological Diversity? II.Latitudinal and Altitudinal Gradients III.Geographic Controls on Diversity A.Historical Theories.
Biodiversity – Chapter 22. Biodiversity Species richness – the total number of species in an area –Simplest measure of biodiversity Heterogeneity - higher.
COMMUNITY ECOLOGY Populations of different species that live and interact at same place and same time.
INVASION ECOLOGY…CURIOUSER & CURIOUSER ALIEN INVASION.
Copyright © 2005 Brooks/Cole — Thomson Learning Biology, Seventh Edition Solomon Berg Martin Chapter 52 Community Ecology.
BY KACPER, SEAN, SAM, AND KASSANDRA Nature Education for Kids.
COMMUNITY ECOLOGY. OBJECTIVES: Describe types of relationships among organisms. Compare primary and secondary succession.
Systems Approach. Ecosystem Community Population.
COMMUNITY ECOLOGY cont pp Warm-up 4/2: Define Inter and Intraspecies competition. Which has greater competition? Explain Explain why parasites.
COMMUNITY STRUCTURE. Community Structure Paine ‘80 - Keystone Species Keystone species -a relatively low biomass species that is a major factor in determining.
Ecology Project Alex Shaw. Ecosystem Engineers  Cause physical changes to their environment for own needs  By behavior, or large collective biomass.
Ecological Succession.  Ecological succession is the observed process of change in the species structure of an ecological community over time.
Coral Reef Succession. Ecological Succession The progressive change in the species composition of an ecosystem.
GRASSY RECONSTRUCTION: A Plant Competition Trial and insights into the relative competitiveness of two Cumberland Plain grass species.
Ecology 8310 Population (and Community) Ecology The effects of diversity Background Tilman and Downing 1994 Species vs. functional diversity Foodwebs (instead.
Wave Exposure and its Effects on the Diversity of a Shoreline Anne Haley, Lauren Jonah, Riki Krentz, Jessica Hingley & Caroline Méthé.
Copyright © 2005 Brooks/Cole — Thomson Learning Biology, Seventh EditionCHAPTER 52 Community Ecology Copyright © 2005 Brooks/Cole — Thomson Learning Biology,
The Landscape Ecology of Invasive Spread Question: How is spatial pattern expected to affect invasive spread? Premise: Habitat loss and fragmentation leads.
Community Ecology Patterns in Communities Chapter 20 Section 2 Pages
SCIENCE SECTION II BY: EMILY TRAN. BIODIVERSITY TYPES OF BIODIVERSITY  Species diversity is one type of biodiversity  Genetic diversity & Ecosystem.
Chapter 37.1 – 37.6 COMMUNITY ECOLOGY. What you need to know! The community level of organization The role of competitive exclusion in interspecific competition.
Tips for success at the IRL Envirothon Wildlife Section.
Ecology (BIO C322). Ecological Pyramids Pyramid of Numbers – upright or inverted??
BIO 315 Week 4 DQ 3 What is the difference between species richness and diversity? What are some of the challenges in determining the species richness.
Species Abundance and Diversity
Community Ecology Chapter 37.1 – 37.6.
COMMUNITY ECOLOGY cont
Module 8 Responses to Disturbances
Ecology.
TODAY: ANNOUCEMENT: 1. Learning log
Ecosystems.
Prairie Restorations, Inc.
Community Ecology Chapter 54.
Lotic Communities What is a community? A) The Dictionary B) The Ideal
Communities.
What’s the relationship of diversity and productivity?
Biodiversity.
Community Ecology Chapters 54 PART 2.
Communities An association of interacting populations
Competiton Competition- the struggle of individuals to obtain a limiting resource. Competitive exclusion principle- two species competing for the same.
BIODIVERISTY PP
Ecology.
ECOSYSTEM DYNAMICS II PP
What is an Invasive Species?
Notes: Succession pp
SUCCESSION.
Sunset Beach Percent Meters DISTANCE DISTANCE (M) ROSE WORT BR SAND
Factors that Shape Ecosystems
Waves.
ECOSYSTEM DYNAMICS I pp
Changes in Communities
Symbiotic Relationships
Chapter 5 Evolution and Biodiversity Review
ECOLOGY VOCABULARY SECTION 1.
Notes: Succession pp
11-4: Community properties
BIOLOGY 2404a 2009 Lecture 4 Vegetation sampling.
Presentation transcript:

Logic of Intermediate disturbance hypothesis For a native and co-evolved set of species When there are frequent and considerable disturbances, a small set of species that are good at colonizing disturbed habitats will be favored When there are infrequent and typically minor disturbances, the community will be comprised on competitively dominant species At intermediate levels of disturbance mixtures of species can co-exist Based on 1-3, the most diverse and species rich communities will exist in locations of intermediate disturbance. What about a mixture of invasive and native set of species?

Questions What is the relationship between distance from the shoreline and: Species richness? Percent cover of plants (a proxy for biomass). Think how this could be related to intermediate disturbance hypothesis? How should these change comparing Franklin Point and Sunset Beach?

Distance from Shoreline Number of Species (Proxyfor biomass) Percent Cover Distance from Shoreline

Sunset Beach

Elevations Franklin Point Sunset Beach Crest 12.5 m Crest 35 m

Franklin Point Sunset Beach Crest 12.5 m Crest 35 m

Franklin Point Sunset Beach Crest 12.5 m Crest 35 m

Sunset Beach

Percent cover for each species occurring in each section