Christopher X J. Jensen
Associate Professor, Pratt Institute

Pratt News features short piece on Dr. Roland Kays’s campus visit

Posted 02 May 2017 / 0 A Minor Post, Behavior, Conservation Biology, Department of Mathematics & Science, Photography, Population Growth, Pratt Institute, Public Outreach, Sustainable Pratt, Urban Ecology, Web

Urban Wildlife Podcast on the Cat Wars

Posted 10 Mar 2017 / 0

If you read my little podcast recommendations on this site, you know that I am a huge fan of the Urban Wildlife Podcast. I just checked out one of the most recent episodes, Cat Wars (also embedded as audio above), and it is my favorite far and away. Tony and Billy always bring a great Read More

A Minor Post, Behavior, Behavioral Ecology, Belief, Commensalism, Conservation Biology, Ethics, Felids, Invasive Species, Law, Mutualism, Population Growth, Predation, Public Policy, Radio & Podcasts, Temperate Forest, Urban Ecology

Eco 101: Exponential Growth & Decay

Posted 27 Jan 2017 / 0

Different rates of positive and negative growth create different population trajectories over time In biology, a population is a group of organisms that belong to the same species and occupy a defined land area (or volume of air or water). These populations have the tendency to grow and shrink over time. This is because the rate at which members of Read More

A Major Post, Eco 101, Ecology, Intrinsic Growth Rate, Population Growth

Eco 101: Carrying Capacity

Posted 25 Jan 2016 / 0

Fundamentally, carrying capacity is a measure of the maximum density of a particular population How many organisms of a particular species can an area support? What determines this maximum population density? The answer to these questions is captured by the ecological concept of carrying capacity. The carrying capacity tells us how many organisms of a particular species Read More

A Major Post, Carrying Capacity, Eco 101, MSCI-270, Ecology, MSCI-271, Ecology for Architects

Lev Ginzburg Fest: celebration of a “retirement”

Posted 17 Dec 2015 / 0

“Lev Ginzburg has retired”. For anyone who knows Lev, this combination of words does not make a whole lot of sense. Is it possible that such a lively and active scientist would hang up his yellow pad and pencil in order to put his feet up in some retirement community far away from the world Read More

A Major Post, Allometries, Biography, Carrying Capacity, Conferences, Conservation Biology, Ecological Modeling, Ecology, Evolutionary Modeling, Population Genetics, Population Growth, Science as a career, System Stability, Talks & Seminars

It was an honor to talk to St. Francis College!

Posted 14 Dec 2015 / 1

Last Friday (December 11th, 2015) I had the pleasure of speaking to students and faculty at Saint Francis College. I delivered a talk entitled “Highly-creative baby-breeding idea propagators: what human (re)productive choices mean for the future of our species” to an engaged and insightful audience; as this was the final week of classes, I really Read More

A Major Post, Adaptation, Behavior, Breeders, Propagators, & Creators, Cultural Evolution, Gene-Culture Coevolution, Human Evolution, Human Uniqueness, Natural Selection, Population Growth, Public Outreach, Sex and Reproduction, Social Diversity

My first “Breeders, Propagators, & Creators” talk: next Friday at St. Francis College

Posted 04 Dec 2015 / 0

Next Friday, December 11th, at 3 pm I will be delivering a talk at St. Francis College entitled “Highly-creative baby-breeding idea propagators: what human (re)productive choices mean for the future of our species“. The talk is a synopsis of a large section of my book-in-progress Breeders, Propagators, & Creators: Culture, Biology, and the Future of Human Evolution. Read More

A Major Post, Behavior, Breeders, Propagators, & Creators, Carrying Capacity, Cultural Evolution, Evolution Education, Gene-Culture Coevolution, Human Evolution, Human Uniqueness, Intrinsic Growth Rate, Memetic Fitness, Natural Selection, Parenting, Population Growth, Public Outreach, Reproductive Fitness, Sex and Reproduction, Social Diversity

Did the population bombers drive China into cultural crisis?

Posted 05 Nov 2015 / 0

Image courtesy of Wikimedia Commons The Los Angeles Times “China drops its ‘one-child’ policy, now let’s ban the ‘population bomb’” Great op-ed that makes it really clear that impact is a function of not just the number of people on the earth but also the resources those people consume (affluence) and technologies used to produce Read More

A Minor Post, Activism, Belief, Breeders, Propagators, & Creators, Carrying Capacity, Cultural Evolution, Memetic Fitness, MSCI-271, Ecology for Architects, Population Growth, Population Pressure, Prediction, Public Policy, Web

China shifts a failed cultural policy designed to stabilize population

Posted 29 Oct 2015 / 1

The New York Times “China to End One-Child Policy, Allowing Families Two Children” This was a long time coming (see Mara’s Hvistendahl‘s great 2010 piece in Science Magazine for perspective), but the Chinese Communist Party has finally decided to replace its “one child policy” with a “two child policy”. From an evolutionary perspective, there is Read More

A Minor Post, Articles, Breeders, Propagators, & Creators, Carrying Capacity, Cultural Evolution, Economic sustainability, Economics, Ethics, Law, Population Growth, Population Pressure, Public Policy, Social Norms

I will speak about the tension between biological and cultural evolution at St. Francis College (December 11th, 2015 @ 3pm)

Posted 08 Oct 2015 / 0

I am excited to announce that I am scheduled to speak about the tension between biological and cultural evolution at Saint Francis College in Brooklyn Heights. The title of my talk is “Highly-creative baby-breeding idea propagators: what human (re)productive choices mean for the future of our species“, and it will provide a partial overview of Read More

A Major Post, Anthropogenic Change, Behavior, Breeders, Propagators, & Creators, Carrying Capacity, Cultural Evolution, Economics, Gene-Culture Coevolution, Human Evolution, Human Uniqueness, Parenting, Population Growth, Population Pressure, Psychology, Public Outreach, Reproductive Fitness, Resource Consumption, Sex and Reproduction, Sustainability