Publications by Bill Dennison

IAN is committed to producing practical, user-centered communications that foster a better understanding of science and enable readers to pursue new opportunities in research, education, and environmental problem-solving. Our publications synthesize scientific findings using effective science communication techniques.

2015 Maryland Coastal Bays report card (Page 1)

2015 Maryland Coastal Bays report card

Jane Thomas, Bill Dennison ·

The aim of this report card is to provide a transparent, timely, and geographically detailed assessment of 2015 Coastal Bays health. Coastal Bays health is defined as the progress of four water quality indicators (total nitrogen, total phosphorus, chlorophyll a, dissolved oxygen) and two biotic indicators (seagrass, hard clams) toward scientifically derived ecological thresholds or goals.

Maryland Coastal Bays 2016: Bay perspectives (Page 1)

Maryland Coastal Bays 2016: Bay perspectives

Jane Thomas, Bill Dennison, Heath Kelsey ·

This booklet provides an overview of the current science and management issues in the Maryland Coastal Bays in 2016. The full report (which can be found here) includes two ‘booklets’ in one publication—one intended for those interested in the bay perspective, and the other for those interested in the land perspective. The two documents culminate in a summary centerfold which focuses on both watershed and bay issues.

Maryland Coastal Bays 2016: Land perspectives (Page 1)

Maryland Coastal Bays 2016: Land perspectives

Jane Thomas, Bill Dennison, Heath Kelsey ·

This booklet provides an overview of the current science and management issues in the Maryland Coastal Bays in 2016. The full report (which can be found here) includes two ‘booklets’ in one publication—one intended for those interested in the bay perspective, and the other for those interested in the land perspective. The two documents culminate in a summary centerfold which focuses on both watershed and bay issues.

Conceptual Diagrams (Page 1)

Conceptual Diagrams

Tracey Saxby, Nicole Lehmer, Jane Thomas, Jane Hawkey, Adrian Jones, Bill Dennison ·

This newsletter details the use of symbols as a visual language. Symbols are useful for depicting unequivocal messages that transcend cultures, languages and times. The use of symbols to construct conceptual diagrams ('thought drawings') can be an effective tool for science communication and problem solving. Conceptual diagrams help to clarify thinking and provide a communication interface between scientists and non-scientists.

2015 Chesapeake Bay Report Card (Page 1)

2015 Chesapeake Bay Report Card

Caroline Donovan, Alexandra Fries, Bill Dennison ·

This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. In 2015, the report card includes five water quality indicators and two biotic indicators. In 2015, the overall grade for Chesapeake Bay is a 53%, a C. This means the Bay is in moderate health. Long term trends of each reporting region health and a fisheries index are also presented. For further details, visit the Report Card website.

Assessing the health of Guanabara Bay and its river basins (Page 1)

Assessing the health of Guanabara Bay and its river basins

Bill Dennison, Dave Nemazie, Alexandra Fries ·

We held an initial workshop April 25, 2016 in Rio de Janeiro, Brazil, to begin production of a report card for the Guanabara Bay and its watershed. This newsletter summarizes the discussions with environmental and social scientists, engineers, and government officials who developed a first draft of the indicators and reporting regions for the assessment of Guanabara Bay and its river basins.

Avaliando a saúde da Baía de Guanabara e sua Bacia Hidrográfica (Page 1)

Avaliando a saúde da Baía de Guanabara e sua Bacia Hidrográfica

Bill Dennison, Dave Nemazie, Alexandra Fries ·

Nós realizamos um workshop com o objetivo de produzir um Boletim (Score Card) para a Baía de Guanabara e sua bacia hidrográfica. Essa newsletter resume as discussões que aconteceram entre um grupo de cientistas sociais e ambientais, engenheiros e representates do governo, reunidos para desenvolver um esboço preliminar dos indicadores e regiões a serem reportadas para a avaliação da Baía de Guanabara e sua bacia hidrográfica.

National Capital Parks-East Natural Resource Condition Assessment (Page 1)

National Capital Parks-East Natural Resource Condition Assessment

Walsh BM, Campbell JP, Costanzo SD, Dennison WC, Lehman M, Milton M, Nortrup M, Syphax S ·

The National Capital Parks–East (NACE) provides a natural haven for the urbanized Washington, D.C., area. NACE includes 14 major park areas that comprise more than 8,000 acres of the Atlantic Coastal Plain from Anne Arundel County, Maryland, through the eastern part of Washington, D.C., to Prince George’s and Charles counties, Maryland.

Ecological Drought in the North Central United States (Page 1)

Ecological Drought in the North Central United States

Brianne Walsh, Simon Costanzo, Bill Dennison ·

The Department of the Interior Climate Science Centers (CSCs) and their managing organization, the National Climate Change and Wildlife Science Center at the U.S. Geological Survey, have chosen the emerging climate science field of Ecological Drought as a research focus area. This newsletter highlights the outcomes of a two-day workshop held in Fort Collins, Colorado, as part of a series of meetings at each of the nation’s eight CSCs.