Christopher X J. Jensen
Professor, Pratt Institute

Grass on a Pedestal

Posted 08 May 2015 / 0

Around this time of year at Pratt a great variety of student sculpture work sprouts up on the grounds. I thought that this one was particularly interesting. I could not find out what its title was or who made it, but I thought that it nicely captured our relationship to grass, especially on the Pratt Read More

A Minor Post, Anthropogenic Change, Art & Design, Eutrophication, Pollution, Science in Art & Design

New article in Science provides a comprehensive overview and update on Yellowstone National Park

Posted 24 Apr 2015 / 0

Since I began teaching Ecology at Pratt, I have used the re-introduction of wolves to Yellowstone as the cornerstone case study of my community ecology lessons. Using material originally developed by my colleague Damon Chaky for the Ecology for Architects course, I ask my students to use ecological theory to explain some of the changes that Read More

A Minor Post, Anthropogenic Change, Articles, Biodiversity Loss, Community Ecology, Conservation Biology, Ecology, Interactions, Keystone Species, MSCI-270, Ecology, MSCI-271, Ecology for Architects, Predation, Public Policy

My ecological footprint for 2014-2015

Posted 06 Apr 2015 / 0

Every year in my ecology courses I have my students complete an ecological footprint analysis of their own lifestyle and the lifestyle of an older relative. I have been asking my students to do these for each of the eight years that I have taught at Pratt Institute, so I have accumulated a lot of Read More

A Major Post, Anthropogenic Change, Biomes, Ecological Footprinting, Ecosystem Services, Environmental Justice, Food, MSCI-270, Ecology, MSCI-271, Ecology for Architects, Quantitative Analysis, Resource Consumption, Sustainability

On the verge of 400 ppm Carbon Dioxide: a symbolic threshold

Posted 23 Feb 2015 / 0

According to the Scripps Institution of Oceanography, it appears that February 2015 will be the month in which the concentration of carbon dioxide in the atmosphere exceeds 400 part per million: Various sources have been predicting that we would soon reach this symbolic milestone, and it appears that this will be the month when it Read More

A Minor Post, Climate Change, Human limits, Sustainability, Web

PCB Bioaccumulation and Polar Bear Penises

Posted 20 Feb 2015 / 0

National Geographic News “Is Pollution Weakening Polar Bears’ Ability to Mate?” This sounds like fodder for a late-night television laugh line, but this is a pretty scary example of how bioaccumulation of toxins can have important conservation consequences. From a conservation perspective, there is nothing worse than a ubiquitous pollutant reducing the ability of a Read More

A Minor Post, Pollution, Sex and Reproduction, Web

Water, Alfalfa, China, and a modern Tragedy of the Commons

Posted 12 Aug 2014 / 0

NPR Morning Edition “In Time Of Drought, Arizona’s Alfalfa Exports Are Criticized” There are so many interesting aspects to this story. First and foremost, it illustrates that “tragedies of the common” are entirely, well — common — in modern economies. The rules of resource use dictate whether that resource will be over-exploited: if there are Read More

A Minor Post, Climate Change, Cooperation, Deserts, Ecosystem Services, Environmental Justice, Ethics, Radio & Podcasts, Resource Consumption, Sustainability, Sustainable Agriculture, Water Supply

Evolution 2014: Could the right symbionts provide protection from chytrid infection to amphibians?

Posted 21 Jun 2014 / 0

Patrick McLaughlin showed work on Bioko Island suggesting that frogs there may be protected from the ill effects of chytrid infection by the presence of bacterial symbionts. These symbionts produce metabolites that lower rates of parasitic infection, suggesting that symbionts might be used to protect amphibian populations worldwide. It also suggests a mechanism by which Read More

A Minor Post, Biodiversity Loss, Coevolution, Competition, Conferences, Host-Pathogen Evolution, Invasive Species, Mutualism, Parasitism, Society for the Study of Evolution

EnviroAtlas is now live, publicly available

Posted 30 May 2014 / 0

For the past couple of years I have been playing around with a really cool tool called EnviroAtlas, a project of the U.S. Environmental Protection Agency. This past semester I created two classroom activities that use EnviroAtlas, implementing them for the first time in my Ecology for Architects course. The EnviroAtlas tool was in beta-testing Read More

A Minor Post, Biodiversity Loss, Biomes, Bogs & Wetlands, Citizen Science, Computer Science, Conservation Biology, Data Limitation, Deserts, Ecosystem Services, Education, Educational Software and Apps, Environmental Justice, Eutrophication, Grasslands, Habitat Destruction, Invasive Species, Long Term Ecological Research, Macroecology, Pollution, Ponds & Lakes, Population Pressure, Public Policy, Quantitative Analysis, Rivers & Streams, Sustainability, Teaching, Teaching Tools, Temperate Forest, Temperate Rainforest, Urban Ecology, Water Supply, Web

John Oliver holds first “balanced” climate debate on television

Posted 30 May 2014 / 0

Very nicely done! The monologue is great, but then the “performance” of the balanced climate change debate is really what drives home the point here. Don’t watch networks that present false “debates”.

A Minor Post, Belief, Climate Change, Film, Television, & Video, Political Science, Public Outreach, Public Policy, Risk & Uncertainty, Science (General), Sustainability

Our review paper on Late Pleistocene Extinction Modeling published in QRB!

Posted 21 May 2014 / 0

I am proud to announce that a paper on which I am co-author, “A review and synthesis of late Pleistocene extinction modeling: Progress delayed by mismatches between ecological realism, interpretation, and methodological transparency“, has been published in the June 2014 issue of The Quarterly Review of Biology. The paper looks at the history of modeling aimed Read More

A Major Post, Anthropogenic Change, Articles, Biodiversity Loss, Climate Change, Community Ecology, Ecological Modeling, Extinction, Modeling (General), My publications, Predation