Christopher X J. Jensen
Associate Professor, Pratt Institute

ECOmotion Studios on Hairston Smith Slobodkin and why the earth is green

Posted 06 Oct 2015 / 0

Here’s another fun and informative video from ECOmotion Studios. I thought that it was interesting how this short discussed the connection between decomposers and the eventual supply of oil, although I wonder if many viewers will gain enough information from this short video to fully understand this idea. The basic ideas behind Hairston-Smith-Slobodkin (HSS) are Read More

A Minor Post, Carrying Capacity, Community Ecology, Ecological Society of America, Film & Video, Film, Television, & Video, Predation, Science in Art & Design, Terrestrial

Carrying capacity — but not growth rate — varies with habitat quality (at least for moose)

Posted 17 Aug 2015 / 0

Ecosphere “Characterizing demographic parameters across environmental gradients: a case study with Ontario moose (Alces alces)” What I find interesting about this study — besides its unprecedented investigation of something that would seem pretty critical to basic conservation efforts — is what was and was not intuitive in its findings. Moose have higher carrying capacities where Read More

A Minor Post, Articles, Carrying Capacity, Community Ecology, Conservation Biology, Ecological Modeling, Habitat Destruction, Intrinsic Growth Rate, Parasitism, Population Growth, Sustainable Harvesting

Go mutualistic or go home?

Posted 15 Aug 2015 / 0

The Chronicle of Higher Education “The Great Extinction” I agree with this article’s overall perspective, which is that it is a bit weird to view humans as unnatural. What we are is unprecedented as a single species that defines a geologic time period (albeit what is likely to be a very short one). I also Read More

A Minor Post, Anthropogenic Change, Articles, Biodiversity Loss, Commensalism, Population Growth, Subsistence, Survival, Sustainability

WmD Episode #00002 has been released

Posted 07 Aug 2015 / 0

It took me a lot longer than I would have wished, but I have released the second episode of WmD’s video blog: You can see this episode in its ‘native habitat’ here. The first season of WmD is dedicated to the “big questions in ecology and evolution“. This episode, “Keep on keeping on… until you Read More

A Major Post, Belief, Competition, My publications, Population Growth, Predation, Religion, Senescence, Survival, The WmD Project, Urban Ecology

Sadly, the Population Bombers (mostly) still don’t get it

Posted 03 Jul 2015 / 0

WNYC The Leonard Lopate Show “Is Human Overpopulation The Reason for Environmental Destruction?” In my Ecology for Architects class we do an activity (“Perspectives on Becoming Ecologically Sustainable“) that challenges my students to comprehensively consider our large-scale options for becoming sustainable. When we do the activity we have already done some ecological footprinting and discussed Read More

A Minor Post, Anthropogenic Change, Biodiversity Loss, Carrying Capacity, Climate Change, Habitat Destruction, Population Growth, Population Pressure, Sustainability

Evolution 2014: Day 0

Posted 20 Jun 2014 / 0

I started off this year’s Evolution meeting early. The conference is — at its core —  a four-day affair. But the days leading into the “official” start on Friday evening feature larger workshops aimed at building skills. I chose to attend the Experiencing Evolution workshop. Here’s what this session promised: Evolution is a key biological concept, Read More

A Major Post, Adaptation, Assessment Methods, Behavior, Coevolution, Competition, Conferences, Cooperation, Evolution, Evolution Education, Evolutionary Modeling, Genetics, Grants & Funding, Higher Education, Individual-based Models, Lesson Ideas, Multilevel Selection, Natural Selection, Phylogenetics, Population Genetics, Population Growth, Predation, Reproductive Fitness, Science in Art & Design, Sex and Reproduction, Society for the Study of Evolution, Talks & Seminars, Teaching, Teaching Tools

Why socially-progressive scientists should not make bets…

Posted 25 Jan 2014 / 0

NPR Morning Edition “A Bet, Five Metals And The Future Of The Planet” This is an excellent piece that encapsulates the argument between “population pessimists” and “technological optimists”, an argument that seems to have been won by the technologists. It is frustrating how much damage has been done by people like Paul Ehrlich. His overconfidence Read More

A Minor Post, Anthropogenic Change, Carrying Capacity, Conservation Biology, Economic sustainability, Economics, Ecosystem Services, Population Growth, Population Pressure, Public Policy, Radio & Podcasts, Resource Consumption, Sociology, Sustainability

National Geographic “The Short Happy Life of a Serengeti Lion”

Posted 23 Aug 2013 / 0

National Geographic “The Short Happy Life of a Serengeti Lion” This article provides a great overview of the kind of work that Craig Packer’s research group does in the Serengeti to understand the social behavior of lions. There is valuable information here on why lions are social (unlike other large cats), why lions must cooperate, Read More

A Minor Post, Articles, Behavior, Behavioral Ecology, Carrying Capacity, Cooperation, Grasslands, Kin Selection, Predation, Reciprocity

Freakonomics takes the quantitative knife to how we produce and consume food

Posted 25 Nov 2012 / 0

Freakonomics Radio “You Eat What You Are” This piece delivers a much needed kick in the self-righteous pants to the locavore movement. It systematically disassembles the assumptions of the local food movement, ending by discussing the minimal quantitative ecological benefits of using the “I only eat local” rule. It pulls apart belief from reality, and Read More

A Minor Post, Anthropogenic Change, Belief, Carrying Capacity, Climate Change, Cultural Anthropology, Cultural Evolution, Ecological Footprinting, Economics, Ethics, Food, Greenwashing, Hunger, Hypothesis Testing, Life Cycle Analysis, Philosophy, Population Growth, Public Policy, Quantitative Analysis, Radio & Podcasts, Resource Consumption, Subsistence, Sustainability, Sustainable Agriculture, Vegetarianism

David Sloan Wilson on Ayn Rand and the delusion of a world without tradeoffs

Posted 10 Oct 2012 / 0

The Huffington Post “Ayn Rand and Modern Politics” What I really appreciate about this post is its very simple brand of analysis. It asks a simple question and employs a clear methodology to objectively understand a phenomenon (in this case, the appeal of Ayn Rand to conservatives). Talk about a job of social construction: the Read More

A Minor Post, Behavior, Belief, Carrying Capacity, Cooperation, Cultural Evolution, Economics, Ethics, Game Theory, Philosophy, Political Science, Psychology, Religion, Social Norms, System Stability, Web