Mineral extinction

A global comparison of GEOS-Chem-predicted and remotely-sensed mineral dust aerosol optical depth and extinction profiles

[1] Dust aerosol optical depth (AOD) and vertical distribution of aerosol extinction predicted by a global chemical transport model (GEOS-Chem) are compared to spaceborne data from the Moderate-resolution Imaging Spectroradiometer (MODIS), MultiAngle Imaging SpectroRadiometer (MISR), and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) for March 2009 to February 2010....

Extinction talk

Extinctions are a part of life on earth. Indeed, over 99.9% of all species that once existed have gone extinct. However, humans are doing a good job in helping species into early extinction. In this talk, I fist review some classic mass extinction, and then review ecology and genetic risk factors for extinction. I finish by discussing how to assess (and defend) a species risk assessment and wit...

Superstar Extinction

We estimate the magnitude of spillovers generated by 112 academic “superstars” who died prematurely and unexpectedly, thus providing an exogenous source of variation in the structure of their collaborators’ coauthorship networks. Following the death of a superstar, we find that collaborators experience, on average, a lasting 5 to 8% decline in their quality-adjusted publication rates. By explor...

Rethinking Extinction

Extinction serves as the leading theoretical framework and experimental model to describe how learned behaviors diminish through absence of anticipated reinforcement. In the past decade, extinction has moved beyond the realm of associative learning theory and behavioral experimentation in animals and has become a topic of considerable interest in the neuroscience of learning, memory, and emotio...

Ecological Consequences of Extinction Ecological Consequences of Extinction