'Prey' diaporamas de présentation

Living fishes

Living fishes. The living fishes (not a monophyletic group) include: the jawless fishes (e.g. lampeys), cartilaginous fishes (e.g. sharks and rays), bony, ray-finned fishes (most of the bony fishes such as trout, perch, pike, carp, etc) and

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OUR Ecological Footprint - 2 1. Recycle; pay tax for it. 2.

OUR Ecological Footprint - 2 1. Recycle; pay tax for it. 2. This week lab: Due: Homework 9: Pop. Problem Set Start: SDP-2 Read paper about project Xerox Abstract/Intro for group members + TA

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Long Swings in Homicide

Long Swings in Homicide. 1. 1. Outline. Evidence of Long Swings in Homicide Evidence of Long Swings in Other Disciplines Long Swing Cycle Concepts: Kondratieff Waves More about ecological cycles Models. 2. 2. Part I. Evidence of Long Swings in Homicide. US Bureau of Justice Statistics

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Recap

Recap. Species interaction Consumer-resource interactions Parasites and host Herbivore and plant Competition Mutualism. 11.6 Individuals of different species can collaborate in mutualistic interactions. Mutualism: interaction benefits both species involved. honeybee and plants

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Am. beech

Axis. Tradeoff. Am. beech. Sugar maple. Allocation of Energy: vertical or horizontal. Sun to shade. Cheetah. Lion. In capture techniques mass vs speed. Prey size/speed. BTGW. Blackburnian. Time allocation; adaptation to parts of the tree. Micro-habitats in spruce trees.

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recognition & localization of predators & prey feature analyzers in the brain

PART 2: SENSORY WORLDS #09: FEATURE ANALYSIS IN TOADS I. recognition & localization of predators & prey feature analyzers in the brain from recognition to response summary. PART 2: SENSORY WORLDS #09: FEATURE ANALYSIS IN TOADS I. recognition & localization of predators & prey

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Lecture Quiz 6 Jeopardy

The LAST Quiz!. Lecture Quiz 6 Jeopardy. `. Provide the equations for geometric growth , exponential growth , and logistic growth. Geometric: N t = N o ? t Exponential: dN / dt = r max N Logistic: dN / dt = r max N (1-N/K).

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Inheritance and Survival

Inheritance and Survival. Populations Evolution. Learning objectives. To understand the factors that influence population size To appreciate the predator-prey relationship To know about the effects of an increasing human population To understand the principles of natural selection.

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THE BEHAVIOUR OF PREDATORS

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Administrational note first

Administrational note first. Received from: Antoine, Alaa (El Chiekh Ali), Richard, Mireille, Angie. The rest? All thus far: want quizzes, and one or two midterm exams Remember: 12% of quizzes done; at least one exam (30%)28 Not acceptable for evaluation: attendance, comments Paper

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The ecology of information use ( ???????? )

The ecology of information use ( ???????? ). ??? ???? ??????? ??. ? ???? ? ????. Information ( ?? ) is involved in social decision( ???? ), communication( ?? ) and selection of mates ( ????? ).

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Community Relationships

Community Relationships. Ecology & Levels of Organization. Ecology Is the scientific study of the interactions between organisms and the environment Organisms and their interactions with one another and the environment have led scientists to organize nature into different levels as follows:

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Announcements: -- For lecture next week, read Chapters 6 and 7 (now 1-7).

Announcements: -- For lecture next week, read Chapters 6 and 7 (now 1-7). -- For lab this week, read Chapter 9 (Using the Library and Scientific Literature) -- ALSO, for the lab, read the paper posted on the website by Erichsen, Krebs, and Houston (1980). This paper tests the model

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Predator-Prey Interactions

Predator-Prey Interactions. We wish to know: how predators affect prey populations, and vice-versa what stabilizes predator-prey interactions and prevents their collapse how predation can result in complex interactions in natural communities. Consumer-Resource Interactions. Predation

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Midterm 2 Results

Midterm 2 Results. Highest grade: 43.5 Lowest grade: 12 Average: 30.9. Greenhouse whitefly. Parasitoid wasp. A fly and its wasp predator:. Laboratory experiment. (Burnett 1959). spider mite on its own. with predator in simple habitat. Spider mites. with predator in complex habitat.

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Overview & Comparison of Feeding Mechanisms in Various Fish Species

Overview & Comparison of Feeding Mechanisms in Various Fish Species. Biology of Fishes October 18, 2012. Fish Species. Hypostomus plecostomus (algae-eater) Teleostei, Loricariidae omnivore Amphilophus citrinellus (red devil cichlid) Teleostei, Cichlidae carnivore

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Evolving "elementary sight" strategies in predators via Genetic programming

Evolving "elementary sight" strategies in predators via Genetic programming. ICBV Project 20.2.07 Lior Becker. Goals. Witness the evolution of the predator "strategy". Imitate the evolution of the parts in the brain that handle the visual informal interpretation .

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Scorpionfly feeding on a butterfly pupa. (After a photograph by P.H. Ward & S.L. Ward.)

Scorpionfly feeding on a butterfly pupa. (After a photograph by P.H. Ward & S.L. Ward.). Figure 13.1. The basic spectrum of predator foraging and prey defense strategies, varying according to costs and benefits in both time and energy. (After Malcolm 1990.). Figure 13.2.

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Interactions Among Organisms

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