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Redwood (Sequoia sempervirens) 1 Chapter 12 – Life Histories
3 2 Lifespan: 2,000 Yrs Seed Production: Millions
Salmon: Anadromous 10
11 12 Lifespan: 2-7 Years Egg Production: Thousands
8 Mayfly Hatch
7 Mayfly (Adult) 9 Adult Lifespan: One Day Egg Production: Hundreds
Lifespan: 2000 Years Seed Production: Millions Lifespan (Adult): 1 Day Egg Production: Hundreds Lifespan: 2-7 Years Egg Production: Thousands
Life History Traits Study of Adaptations that Influence … Reproductive Output Size of Offspring Growth Rate Age at Reproductive Maturity Competitive Ability Life Span
Available Energy is Limited 1314
A) OFFSPRING NUMBER VERSUS SIZE LIFE HISTORY CHARACTERISTICS 15 16
Life History Patterns Fig in Molles 2006
Fig in Molles 2007 Life History Patterns
18 Fig in Molles 2006
Fig in Molles 2006 Life History Patterns
B) Adult Survival and Reproductive Allocation LIFE HISTORY CHARACTERISTICS 1 2
Fig in Molles 2006 Life History Patterns
Fig in Molles 2006
24 Life History Classification
3 4 Age at first Reproduction: 3-4 years Age at First Reproduction: 7 years REPRODUCTION
8 COMPETETIVE ABILITY
5 6 LIFESPAN
Available Energy is Limited
Table 12.1 in Molles 2006 r versus K Selection
R selectedK selected “Small and Fast”“Large and Slow” MacArthur and Wilson 1967 (Birds, Insects) Pianka 1970, 1972 (Lizards) “Frequent Disturbance”“Infrequent Disturbance”
Redwood (Sequoia sempervirens) Chapter 12 – Life Histories.
24 Chapter 11: Life History Classification. Available Energy is Limited.
1 Life Histories Chapter 12 Adaptation of an organism that influence its biology over its life span; e.g. offspring #; survival, size and age of reproduction,
Molles: Ecology 2 nd Ed. LIFE HISTORIES Chapter 12.
LIFE HISTORY STRATEGY. Life History Strategy A suite of traits that improve an individual's chances of surviving and reproducing in a particular environment.
Lecture 14 Life Histories Modes of reproduction – sexual vs. asexual k vs r selected species Survivorship tables.
What is Ecology? Scientific study of the interactions of organisms with their abiotic and biotic environments......in order to understand the distribution.
1 Life Histories Chapter Outline Offspring Number Versus Size Animals Plants Life History Variation Among Species Life History Classification.
55.2 How Do Ecologists Study Population Dynamics? To understand population growth, ecologists must measure population processes as well as population traits.
Life Histories (Ch. 12). Life history trade-offs Principle of Allocation: Energy used for one function unavailable for others –Leads to trade-offs (such.
Week’s Lab IV: Student-Driven Project 1 Complete Homework 6 at home: Correlation/Regression Bring 3 abstracts to trade with group + TA Complete SDP1 Proposal.
11 Life Histories Chapter 12 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
11 Offspring Number Versus Size ___________________: If organisms use energy for one function such as growth, the amount of energy available for other.
Population Ecology Ch 52. Population A group of individuals of a single species living in the same geographic area How to describe populations: Density.
Life History. Introduction Different species reproduce at vastly different rates over lifetimes that may differ dramatically. Life history consists.
Chapter 52 Population Ecology. Population ecology - The study of population’s and their environment. Population – a group of individuals of a single species.
Chapter 10 (Brief Overview). But first, review… Resource Utilization Curve How is it related to the niche? –Niche discussion… How is it related to acclimation?
61BL3313 Population and Community Ecology Lecture 07 Life histories Spring 2013 Dr Ed Harris.
Organism Life Histories BIOL400 9 November Energy Allocation An organism assimilates a finite amount of energy, which it can devote to: Growth.
Life Histories How organisms grow and produce offspring.
Sign up for: IB Spotlight Send to:
Chapter 13 Aging and Other Life History Characteristics.
Chapter 3 Review Science. Traits offspring are given from their parents. Inherit.
7 Life History Analyses. 7 Life History Analyses Case Study: Nemo Grows Up Life History Diversity Life History Continua Trade-Offs Life Cycle Evolution.
The tortoise and the hare an overview of life history.
Life History Strategies. Pacific salmon Red kangaroo.
1. embryo- A plant or animal in the early stages of development.
Fig. 4-1, p Fig. 4-2, p. 109 Fig. 4-3, p. 110.
Fig. 11-1, p p. 360 Fig. 11-2, p. 361 Fig. 11-3, p. 361.
Table 6-1, p Fig. 6-1, p. 162 p. 163 Fig. 6-2, p. 164.
P.464. Table 13-1, p.465 Fig. 13-1, p.466 Fig. 13-2, p.467.
POPULATIONS RESPOND TO PRESSURES Population Growth is Limited: –Birth, Death, Immigration & Emigration –Limiting Factors –Effects of Population Density.
14.2 Measuring and Modeling Population Change Read p.660 – 670 Practice Questions! –P.664 #1 –P.665 #2 –P.668 #3, 4.
Characteristics of Living Things It grows, it moves, it reproduces Is it alive?
Update on crow assignment Class data are posted, courses.washington.edu/bio356 on the Assignments page Calculate total population based on mark- recapture.
Introduction to Life Science. Types of Life 5 Characteristics of Life 1.Cells- most basic unit of life. Ex. Animal, Plant, Bacteria.
What is the density of a population? The number of individuals per unit area Dispersion is how they spread out in that area What are the three.
Life history characteristics. Organisms face fundamental trade-offs in their use of energy and time Changes in life history are caused by changes in the.
Announcements September 8, Population Biology Lecture Objectives: 1.Learn the population characteristics that determine population growth rate 2.Understand.
Population Ecology Chapter 4. GPS SB4 Students will assess the dependence of all organisms on one another and the flow of energy and matter within their.
Lecture #2 Characteristics of Life Studying Life What Characteristics do all living things share?
Classification of Living Things. Characteristics of Life Cells- most basic unit of life. *Unicellular/Multicellular Ex. Animal, Plant, Bacteria.
CHAPTER 52 - POPULATION ECOLOGY Themes: Heritable Information, Interaction with the Environment, Regulation, Evolution.
Reproductive Patterns 10/28/08. Types of Reproduction.
1.1 The Study of Life Living things share some common characteristics All living things are made of one or more cells.
Lecture 11 – LIFE HISTORY STRATEGY. Life History Strategy A suite of traits that improve an individual's chances of surviving and reproducing in a particular.
Questions in the study of foraging behavior How do animals select prey? 2.When should animals leave one feeding site and.
© 2015 Pearson Education, Inc. P OPULATION S TRUCTURE AND D YNAMICS.
Studying Life Chapter 1-3. Living things All living things have Eight characteristics they MUST have in order be called a living organism.
What is an inherited trait? › Give examples What is an acquired trait? › Give examples.
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