Keywords: Phosphorus (10)

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A Balancing Act
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A Balancing Act

In this plant science activity, learners role play as vegetables and weeds ... (more)

In this plant science activity, learners role play as vegetables and weeds competing for nutrients. The object of the game is for the weeds and vegetables to gather as many colored squares as they can. Each paper square represents a different type of nutrient (i.e. green squares represent nitrogen). If a vegetable or a weed does not have at least two of each color square, they ‰ŰĎdie‰Ű from not getting enough nutrients and must step out of the garden. Use this activity to simulate survival and competition in nature and plant-life. (less)

Subject:
Science and Technology
Chemistry
Ecology
Forestry and Agriculture
Geoscience
Life Science
Technology
Social Sciences
Education
Material Type:
Activities and Labs
Games
Instructional Material
Lesson Plans
Simulations
Provider:
Science and Math Informal Learning Educators (SMILE)
Wisconsin 4-H Youth Development
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
SMILE Pathway
Author:
4-H
University of Wisconsin Extension
Chesapeake Bay Restoration: A Model of What?
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Chesapeake Bay Restoration: A Model of What?

This peer reviewed resource from the pages of BioScience magazine is about ... (more)

This peer reviewed resource from the pages of BioScience magazine is about the restoration of the Chesapeake Bay. There are signs that America's biggest and best-known estuary has slipped into disrepair, that the public is no longer certain the Chesapeake will be forever robust, and that the political leaders now lack the willpower needed to restore the bay's health. This is happening despite the unprecedented amount of attention that science has devoted to the bay over the past several years, and the unusual degree of scientistpolicymaker collaboration that has guided the restoration program. Researchers from a dozen or more agencies and academic institutions are probing deep into the Chesapeake ecosystem, studying everything from the vigor of its oysters and crabs to the condition of its water column. The bay's biggest trouble is water quality, which has been degraded with an overabundance of nutrientsprimarily phosphorus and nitrogenthat encourage destructive algal growth. The deterioration of submerged aquatic vegetation (SAV) is another huge problem, as are declines in species that depend on the bay, notably the native oyster, Crassostrea virginica, and the famed blue crab, Callinectes sapidus.The causes of the bay's decline are the usual suspects: escalating population growth, which produces ever greater quantities of sewage, lawn chemicals, impermeable pavement, and lower-quality water; agriculture, which deposits tons of sediment and manure in the bay; diseases and overfishing, which have devastated the native oyster population; and vast areas of oxygen-deprived water that suffocates crabs and other aquatic life. The summer of 2005 was the worst ever measured for oxygen deprivation. (less)

Subject:
Life Science
Education
Material Type:
Reference
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
FRED POWLEDGE (;)
Interactions Among Dissolved Nitrogen, Phosphate, and Dissolved Oxygen at Several Sites in Chesapeake Bay in 2000
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Interactions Among Dissolved Nitrogen, Phosphate, and Dissolved Oxygen at Several Sites in Chesapeake Bay in 2000

We looked at the correlation between dissolved oxygen and two water quality ... (more)

We looked at the correlation between dissolved oxygen and two water quality variables: dissolved nitrogen and dissolved phosphorus. We thought that, if dissolved oxygen were highly correlated with dissolved nitrogen (for example), then that would imply that dissolved nitrogen was limiting or otherwise important at that site. Likewise for dissolved phosphorus. We found that different sites in the bay had different levels of correlation, but there was no spatial pattern to the data. (less)

Subject:
Chemistry
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Activities and Labs
Instructional Material
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
;
Brian White (University of Massachusettes ;)
Charlie Hunter (Southwestern College;)
Sarah Kenick (University of New Hampshire;)
The Kuparuk River, an arctic stream ecosystem on the North Slope of Alaska.
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The Kuparuk River, an arctic stream ecosystem on the North Slope of Alaska.

The Kuparuk River flows to the Arctic Ocean from the foothills of ... (more)

The Kuparuk River flows to the Arctic Ocean from the foothills of the Brooks Range, seen to the south in the background. The Kuparuk River was experimentally enriched with phosphorus every summer from 1983 to 1998 as a part of the Toolik Lake Long-Term Ecological Research (LTER) project. The purpose of the experiment was to evaluate the long-term effects of eutrophication on an arctic tundra stream. During the 16 years of phosphorus additions, a dramatic change was observed in the community structure and at all trophic levels. This photograph originally appeared on the cover of Ecology (85:4) in April of 2004. (less)

Subject:
Ecology
Forestry and Agriculture
Geoscience
Life Science
Material Type:
Images and Illustrations
Instructional Material
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Jonathan Benstead
Long-term Response of an Arctic River Community to Phosphorus Fertilization
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Long-term Response of an Arctic River Community to Phosphorus Fertilization

With this TIEE Data Set, students assess effects of phosphorus addition on ... (more)

With this TIEE Data Set, students assess effects of phosphorus addition on algae, moss, mayflies, and arctic grayling fish in the Kuparuk River, in the foothills of the North Slope of Alaska. Data were taken over 15 years at the Arctic Long Term Ecological Research (ARC LTER) site at the Toolik field station. Phosphorus was added to the river as an experiment to study the effects of nutrient addition different levels of the river food web. With these data, students: 1) hypothesize the influence of nutrient limitation in the community, 2) predict community response to nutrient fertilization, 3) test predictions by analyzing the long term data set, and 4) assess validity of hypotheses. (less)

Subject:
Life Science
Education
Material Type:
Data
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
Linda Deegan
Marine Chemistry, Fall 2006
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Marine Chemistry, Fall 2006

" This course is an introduction to chemical oceanography. It describes reservoir ... (more)

" This course is an introduction to chemical oceanography. It describes reservoir models and residence time, major ion composition of seawater, inputs to and outputs from the ocean via rivers, the atmosphere, and the sea floor. Biogeochemical cycling within the oceanic water column and sediments, emphasizing the roles played by the formation, transport, and alteration of oceanic particles and the effects that these processes have on seawater composition. Cycles of carbon, nitrogen, phosphorus, oxygen, and sulfur. Uptake of anthropogenic carbon dioxide by the ocean. Material presented through lectures and student-led presentation and discussion of recent papers." (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Full Course
Lecture Notes
Video Lectures
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Casciotti, Karen
Doney, Scott
Martin, William
Tivey, Meg
Toole, Dierdre
Rosalind Franklin points out Watson and Crick's mistakes, Raymond GoslingSite: DNA Interactive (www.dnai.org)
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Rosalind Franklin points out Watson and Crick's mistakes, Raymond GoslingSite: DNA Interactive (www.dnai.org)

Interviewee: Raymond Gosling DNAi Location:Code>Finding the structure>players>Rosalind Franklin What Rosalind knew Raymond ... (more)

Interviewee: Raymond Gosling DNAi Location:Code>Finding the structure>players>Rosalind Franklin What Rosalind knew Raymond Gosling 퉌_ Rosalind Franklin's graduate student 퉌_ talks about what Franklin knew from the B-form diffraction pattern. (less)

Subject:
History, Law, Politics
Chemistry
Life Science
Social Sciences
Education
Material Type:
Instructional Material
Video Lectures
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
David Micklos (Cold Spring Harbor Laboratory;DNA Learning Center X-AUDIENCE)
Elof Carlson (SUNY at Stony Brook;Biology Department X-AUDIENCE)
Garland Allen (Washington University at St. Louis;Biology Department X-AUDIENCE)
Jan Witkowski (Cold Spring Harbor Laboratory;Banbury Center X-AUDIENCE)
Paul Lombardo (University of Virginia;Center for Biomedical Ethics X-AUDIENCE)
Steven Selden (University of Maryland;Education Policy and Leadership Department X-AUDIENCE)
Water and Sanitation Infrastructure in Developing Countries, Spring 2007
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Water and Sanitation Infrastructure in Developing Countries, Spring 2007

An introduction to chemical oceanography. Reservoir models and residence time. Major ion ... (more)

An introduction to chemical oceanography. Reservoir models and residence time. Major ion composition of seawater. Inputs to and outputs from the ocean via rivers, the atmosphere, and the sea floor. Biogeochemical cycling within the oceanic water column and sediments, emphasizing the roles played by the formation, transport, and alteration of oceanic particles and the effects that these processes have on seawater composition. Cycles of carbon, nitrogen, phosphorus, oxygen, and sulfur. Uptake of anthropogenic carbon dioxide by the ocean. Material presented through lectures and student-led presentation and discussion of recent papers. (less)

Subject:
Science and Technology
Material Type:
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Murcott, Susan
2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni smelborp gnivlos rof seuqinhcet gnipoleved no si sisahpmE .scipot decnavda detceles dna scihparg retupmoc ,gnihcraes dna gnitros ,serutcurts atad ,sdohtem laciremun ,secafretni resu lacihparg ,stpecnoc gnimmargorp revoc smelborp gnimmargorp ylkeeW .esruoc eht fo sucof eht si tnempoleved dna ngised erawtfos detneiro-tcejbO .snoitacilppa cifitneics dna gnireenigne rof sdohtem lanoitatupmoc dna tnempoleved erawtfos latnemadnuf stneserp esruoc sihT (less)