Christopher X J. Jensen
Professor, Pratt Institute

Urban Wildlife Podcast on synanthropes and urban island castaways

Posted 06 Oct 2015 / 0

Urban Wildlife Podcast “Episode 3: Timbers on a Boston Island” I love this episode because it captures the two major human impacts of urban ecology: the creation of commensal niches for some species while other species are isolated to islands of small remaining habitat. We learn about a variety of organisms from birds to bugs Read More

A Minor Post, Biodiversity Loss, Birds, Commensalism, Habitat Destruction, Habitat Fragmentation, Mutualism, Parthenogenesis, Radio & Podcasts, Reptiles, Sustainable Urban Design, Urban Ecology

Urban Wildlife Podcast on Cats and Coyotes

Posted 20 Sep 2015 / 0

Urban Wildlife Podcast “Episode 4: Cats and Coyotes” What I really enjoyed about this particular episode of the Urban Wildlife Podcast was the interaction between topics covered. The effects of both cats and coyotes are still largely unknown, even as both animals are fairly common in urban areas. Domesticated cats are pretty easy to track Read More

A Minor Post, Animal Domestication, Behavior, Behavioral Ecology, Birds, Canids, Coevolution, Conservation Biology, Data Limitation, Felids, Habitat Fragmentation, Methods, Predation, Radio & Podcasts, Temperate Forest, Tracking, Urban Ecology

Rule number one of cooperative bacterial warfare? Be in the majority.

Posted 25 Aug 2015 / 0

Current Biology “Positively Frequency-Dependent Interference Competition Maintains Diversity and Pervades a Natural Population of Cooperative Microbes” This is another great example of how theory that does not consider space is a poor representation of nature. Here, the diversity of a soil bacterium (Myxococcus xanthus) is shown to be potentially explained by positive frequency-dependent selection, the Read More

A Minor Post, Articles, Competition, Cooperation, Ecological Modeling, Evolutionary Modeling, Kin Selection, Microbial Ecology, Soil Ecology

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

So much for the big-brained city bird theory?

Posted 05 Aug 2015 / 0

BMC Ecology “Commonness and ecology, but not bigger brains, predict urban living in birds” What makes this study smart is that it compares the birds that live successfully in urban areas with the birds that actually have the potential to colonize cities. This makes for a much more meaningful comparison than simply comparing urban species Read More

A Minor Post, Adaptation, Articles, Behavior, Birds, Brain size, Coevolution, Cognitive Ability, Commensalism, Conservation Biology, Habitat Destruction, Resilience, Urban Ecology

Urban Wildlife Podcast on big animals in big cities

Posted 27 Jul 2015 / 0

Urban Wildlife Podcast “Bangkok Pythons and Gotham Whales” This is a really interesting podcast that focuses on the wildlife of cities. This episode is about huge animals that manage to live in close proximity to cities, specifically in their waterways. The section on reticulated pythons — which can grow up to 23-25 feet long — Read More

A Minor Post, Cetaceans, Coevolution, Commensalism, Conservation Biology, Public Outreach, Radio & Podcasts, Reptiles, Urban Ecology

Urban tree power

Posted 17 Jul 2015 / 0

I am not much of an arborist (well, really, I am not an arborist at all!), but I do appreciate trees. Urban trees are especially interesting to me because of their ability to deal with the many insults of the urban environment. I thought that this image — taken where the curb had been peeled Read More

A Minor Post, Coevolution, Competition, Urban Ecology

My new favorite concept mapping activity: depicting whole-system ecological flows

Posted 17 Jul 2015 / 0

Concept mapping is increasingly becoming an important part of my overall approach to teaching. I started out using it in my own research, and quickly realized how valuable it can be as a teaching tool. Because the only real goal of making a concept map is to explore and express understanding of a topic, concept Read More

A Major Post, Community Ecology, Competition, Concept Mapping, Ecology, Ecology Education, Ecosystem Ecology, Information Design, Interactions, Learning Management Systems, Lesson Ideas, MSCI-270, Ecology, MSCI-271, Ecology for Architects, Mutualism, Predation, Teaching Tools