Biomagnification PowerPoint PPT Presentations

Bioaccumulation and Biomagnification Bioaccumulation: a toxin that remains in body tissue. Toxins that bioaccumulate include PCB s, DDT and mercury.

Oily liquids to solids. Non-flammable (high melting points) Electrical insulating properties ... In 1976, Congress passed the Toxic Substances Control Act (TSCA) ...

Introduction to biomagnification

Prevention of Biomagnification In an attempt to eradicate biomagnification, the U.S. and several countries worldwide have placed a ban on the use of DDT.

Biomagnification Biomagnification is the process where chemicals accumulate AND become more concentrated at each trophic level of the food chain. ORCAS ...

Ecology Notes Ch 3 Levels of Organization Cycles Energy Flow Symbiosis Predation Succession Biomagnification

Honors Biology Ch. 2 Principles of Ecology Biomagnification D. Nutrient (Biogeochemical) Cycles - organisms require essential nutrients for growth (CHNOPS ...

... or plants This occurs when pollution accumulates in higher trophic levels What is biomagnification ... is man-induced rapid extinction When CO2 gasses ...

Sustaining Biodiversity: The Species Approach Chapter 8 * * * Figure 8-11 Bioaccumulation and biomagnification: DDT is a fat-soluble chemical that can accumulate in ...

... Dennis Wentz Sources anthropogenic and natural Hg Hg+2 MeHg Methylation Hg Hg+2 Biomagnification PHg (particulate Hg) PHg Sed. Hg Hg ...

Biomagnification: is the progressive build up of persistent substances by successive trophic levels - meaning that it relates to the concentration ratio in a tissue ...

Bioaccumulation and Biomagnification Pesticides Pro and Con Kill unwanted pests that carry disease (rats, mosquitoes, Tse-Tse flies) ...

... dosage, bioaccumulation, biomagnification, synergism, response, acute effect, chronic effect ... Non-transmissible disease, transmissible disease, pathogens, ...

Water (runoff or leaching) Note many different kinds of nontarget effects ... Biomagnification = Increase in concentration of toxic products in higher ...

Figure 54.1 An overview of ecosystem dynamics ... Figure 54.4 Regional annual net primary ... Great Lakes Food Web. Biomagnification 'Bioaccumulation' ...

Biological Magnification http://waynesword.palomar.edu/images/ecology1.jpg Biological Magnification: Increasing concentration of a substance (toxin) in organisms in ...

Food chains If an ecosystem is ... use sun s energy Make their own food - autotrophs Consumers eat other organisms (heterotrophs) Primary eat plants ...

DDT. Background Information: Before 1972, DDT was commonly used as a pesticide; pesticides are chemicals used to kill pests like mosquitos. Overtime, DDT polluted the ...

Title: PowerPoint Presentation Author: McDougal Littell Last modified by: Jennifer McQuade Created Date: 9/14/2006 4:17:10 PM Document presentation format

Impacts of Humans on Ecosystems The biodiversity crisis Introduced species are those that humans have moved from native locations to new geographic regions.

Impacts of humans on ecosystems Rainforest- need to conserve them because: Ecological Economical Ethical Kudzu- Japanese plant that ate the south

Chapter 17 Human Health and Environmental Risks Three categories of human health risks physical biological chemical Biological Risks Infectious diseases- those caused ...

Environmental Awareness

Warm Up Turn in Tattoos and Food Webs. Study for Quiz. Have materials ready for Food Web Collage. Warm Up Turn in Tattoos and Food Webs. Study for Quiz.

Biological Diversity & Conservation

Nutrient Cycling and Human Impact

Ecology and Ecological Health

Pesticides SNC1D

The fully customizable modular PowerPoint deck allows the ... Community Resources for ... Utilize Resources on-line Virtual File Cabinet http ...

Matter and Energy in Ecosystems Almost all energy in the ecosystem comes originally from the sun. Food chains show the direction of energy transfer.

Human Impact on the Environment

... Toxic Metals Program. Research Translation Core. Research: molecular mechanisms ... Translation defined: science communication with the goal ...

Human Impact on the Environment http://www.youtube.com/watch?v=0zPcR7wgh0c http://www.youtube.com/watch?v=thuViaxRd_w&feature=related

Nutrient Cycling and Human Impact

Crayfish. Cast of Food Web Characters ... Crayfish. Plant material and algae. 3-76 g/g ww (enough to cause death) 1-2 g/g ww ...

Environmental Science: Toward a Sustainable Future Richard T. Wright Chapter 16 Pests and Pest Control PPT by Clark E. Adams Genetic Control Introduction of genes ...

BASIC ENVIRONMENTAL TOXICOLOGY What is there that is not poison? All things are poison and nothing without poison. Solely the dose determines a thing is not a ...

What type of biodiversity are we referencing here? (genetic biodiversity) Remember the energy pyramid? ... have students check their endangered species card.

Who eats who in the food chain. Steps along which materials ... Magnification= to increase. Concentration of toxins. Are magnified. In upper pyramid levels ...

National geographic Typical person http://www.youtube.com/watch?v=4B2xOvKFFz4 Human population growth http://www.youtube.com/watch?v=sc4HxPxNrZ0

Ch. 46-47 Reproduction and Development Sexual vs Asexual Reproduction Under what circumstances would each be an advantage? When would each be a disadvantage?

Persistent Organic Pollutants in Marine Ecosystems. PoPs in ... Flounder. Gonad. Intersex Flounder. Endocrine Disruption. Molluscs TBT - IMPOSEX. Nucella ...

Chapter 11 - Water Section 3 Notes Water Pollution Water pollution Two underlying causes of water pollution: Industrialization Rapid Increase In Human ...

... pesticides remain active long period of ... Resistance Pest populations ... Fungicides-fungal pests that weaken plants Rodenticides- kill ...

Calcium from milk to already strong bones ... Summer flounder (Paralychthys dentatus) Sheepshead minnow (Cyprinodon variegatus) ...

Biology Ch. 2 Principles of Ecology

Ca-EDTA. Pb mimics Ca. Bone storage. ALAD. Hematocrit. Hemoglobin. Heme Precursor ' ... Max Daily Intake 100 ug. Max Blood Conc 100 ppb. EPA Tap Water 5 ppb ...

Title: PowerPoint Presentation Author: McDougal Littell Last modified by: Jennifer McQuade Created Date: 9/14/2006 4:17:10 PM Document presentation format

'Prejudices, it is well known, are most difficult to eradicate from the heart ... Oak trees, squirrels, hawks. 3 trophic levels. Have to find the appropriate balance ...

DDT A persistent pollutant * In lesson three the students will work with an osprey dataset. To familiarize students with some of feeding habits of osprey,the example ...

How do we minimize the toxic effects? How do we measure toxicity? ... Cells reproduce quickly to slough off and protect themselves this way. ...

Niche

Webs and Chains

Pesticides are degraded by many different mechanisms. Physical, chemical, and biological agents play significant roles in the transformation of insecticide, herbicide, and fungicide molecules to various degradation products. The physical and chemical properties of the degradation products are also different from those of the parent compound, and their fate and significance in the environment also are altered with the structural changes.

Human Populations and the Biosphere

Chapter 17 Human Health and Environmental Risks