Christopher X J. Jensen
Associate Professor, Pratt Institute

Think that the DNA transfer is only from parents to offspring? Think again!

Posted 27 Sep 2012 / 0

Science Now “Bearing Sons Can Alter Your Mind” Once again, epigenetic effects complicate our understanding of biological evolution! Two interesting omissions in this article: The fail to point out that female fetuses might also be donating DNA to mom: it is just easier to detect the male DNA unequivocally; and The real implication here is Read More

A Minor Post, Epigenetics, Evolution, Gene by Environment Interactions, Genetics, Health & Medicine, Human Evolution, Phenotypic Plasticity, Sex and Reproduction, Web

Can playing games make the world a better place?

Posted 27 Sep 2012 / 1

One of the very talented students I work with in the Envirolutions club, Rhett Bradbury, pointed me towards the work of Jane McGonigal, a game designer and evangelist for the idea that games can save the world. For Rhett, her work is important to his Master’s thesis in graphic design, as he is considering how to move Read More

A Major Post, Cooperation, Cultural Evolution, Development, Emotion, Evolutionary Psychology, Happiness, Health & Medicine, Human Evolution, Mismatch theory, Phenotypic Plasticity, Play, Psychological Adaptation, Psychology, Radio & Podcasts, Social Networks, Subsistence, Web

ESA 2012 Thursday afternoon talks

Posted 10 Aug 2012 / 0

I spent Thursday afternoon once again hustling from one talk to another, with Organized Oral Session #47 (Universal Senescence? New Theories and Experimental Approaches Across the Tree of Life) being my primary focus. The writings of George C. Williams and his ingenious antagonistic pleiotropy hypothesis explaining aging have always fascinated me. Like a lot of Read More

A Major Post, Behavior, Conferences, Ecological Modeling, Ecological Society of America, Ecosystem Services, Freshwater Ecosystems, Individual-based Models, Parasitism, Phenotypic Plasticity, Ponds & Lakes, Predation, Senescence, Spatially Explicit Modeling, Sustainable Agriculture, Talks & Seminars, Tropical Forest

Peter Turchin on Steven Pinker’s “Grand Deception” hypotheses

Posted 26 Jun 2012 / 0

Social Evolution Forum “The ‘Big Mistake’ and ‘Grand Deception’ Hypotheses: Alternatives to CMLS?” These are flaws in Pinker’s arguments that I failed to identify in my own critique, and Turchin prevents some valuable insights. This idea that the human mind can be so easily parasitized or ‘cuckolded’ by ideas is strange, casting ideas and culture as Read More

A Minor Post, Altruism, Belief, Cooperation, Cultural Evolution, Group Selection, Memetic Fitness, Phenotypic Plasticity, Psychological Adaptation, Web

Freaked out grasshoppers just do not contribute to decomposition in the same manner as their more relaxed brethren

Posted 19 Jun 2012 / 0

Science “Fear of Predation Slows Plant-Litter Decomposition” Nature News “Stressed grasshoppers slow plant decay” More interesting community-level feedback between predators and their prey!

A Minor Post, Decomposition, Phenotypic Plasticity, Predation

Understanding biome-level response to climate change

Posted 19 May 2010 / 0

This month’s Scientific American contains a great article (“Arctic Plants Feel the Heat“) on how scientists are documenting climate change in the Arctic. Focusing on the two dominant biomes of this region, the tundra and the taiga, author Matthew Sturm explains how three sources of data are allowing us to see recent changes linked to Read More

A Major Post, Articles, Climate Change, Data Limitation, Long Term Ecological Research, MSCI-270, Ecology, Phenotypic Plasticity, Taiga (Boreal Forest), Tundra