'Plant defenses' diaporamas de présentation

Predation

Predation. Great White Shark and Fur Seal. Predator-Prey Interactions. Effects on populations.

679 views • 44 slides

Plant Responses to Signals

Plant Responses to Signals. Chapter 39. Plants have to respond to gravity and other stimuli in environment. Growth pattern in plants - reaction to light. Shoot reaches sunlight - starts process called greening. Shoots start to grow - entire plant begins to make chlorophyll.

595 views • 43 slides

Lecture 5.4 ( ch 6) Competition, Symbiosis, Keystone Species

Lecture 5.4 ( ch 6) Competition, Symbiosis, Keystone Species. Ecological Niche. Explain this term. Limiting Resources. Any environmental resource that, because it is scarce or at unfavorable levels, restricts the ecological niche of an organism. Explain the Difference. Fundamental niche

993 views • 40 slides

Anissa Poleatewich PPATH 405 November 30, 2009

721 views • 36 slides

Herbivory

Herbivory. Herbivory. Importance? Great! Affects plant distribution Escape hypothesis : seed dispersal = escape herbivores. Seed shadow. Herbivory. Food chain. Why world green? What controls herbivores? Top-down control : Bottom-up control :. predators. herbivores. plants.

467 views • 35 slides

Plant-herbivore interactions

553 views • 32 slides

Biodiversity

506 views • 31 slides

Relationships in the Environment

Relationships in the Environment. What types of environment are present?. Fresh Water Ecosystems Marine Ecosystems Terrestrial Ecosystems. Fresh Water Ecosystems.

454 views • 31 slides

Plant defenses

Plant defenses. Mechanical protection on leaf surface Secondary Chemistry Polymers or silica crystals that reduce digestibility Chemical toxins that kill or repel at very low concentrations Low nutrient concentrations (a defense or consequence of physiological limitation?).

427 views • 27 slides

Everything You Ever Wanted to Know about Plants

Everything You Ever Wanted to Know about Plants. Chapters 36-42. Land Plant Evolved From Freshwater Algae. Vascular vs Non Vascular Angiosperms vs Gymnosperms. Generalized Plant Life Cycle. Plant Body Organization. Roots and Shoots Dermal, Ground, and vascular tissue Meristems

273 views • 27 slides

Macro-climate

Macro-climate. Radiation, wind, precipitation, Coriolis force Effects of latitude, land & water, maritime climate, topography, etc. Rainshadow effect Major biome: desert, grassland, forest, taiga, tundra. What aspect of environmental factors is relevant?.

2.2k views • 24 slides

Community Ecology

Community Ecology. Relationships Between Organisms AP Biology. Ecological Niches. A species' niche includes: Habitat - where it lives in the ecosystem Relationships - all interactions with other species in the ecosystem Nutrition - its method of obtaining food. Competition.

297 views • 13 slides

Successful Parasitism by Plant-parasitic Nematodes Suppression of Plant Defenses by Nematodes

Successful Parasitism by Plant-parasitic Nematodes Suppression of Plant Defenses by Nematodes. Biotrophic Pathogens Pathogens that can only feed on a living host and must keep the host and its cells alive are termed biotrophic pathogens.

329 views • 13 slides

Successful Parasitism by Plant-parasitic Nematodes Suppression of Plant Defenses by Nematodes

Successful Parasitism by Plant-parasitic Nematodes Suppression of Plant Defenses by Nematodes. Biotrophic Pathogens Pathogens that can only feed on a living host and must keep the host and its cells alive are termed biotrophic pathogens.

315 views • 13 slides

Plant Defenses against Predators

Plant Defenses against Predators. By: Jordan DiNardo and Kimmi Tamashiro. Types of Defenses. Chemical Defenses Mechanical Defenses Mimicry and Camouflage Indirect Defenses Leaf shedding and color. Chemical Defenses.

475 views • 7 slides