Microclimate affects the distribution of grassland birds, but not forest birds, in an Alpine environment

Conservation of grassland birds in the Northeast

Birds in a Forest

The goal of this project is to use machine learning and computer vision techniques to identify an object in an image. More specifically, given an image of a bird, we would like to identify what species of bird it is. To do this, we have implemented a two step process; first identify the characteristics of the bird in the image, then use those characteristics to predict what species of bird it i...

Monitoring Grassland Birds in Nocturnal Migration

We censused vocalizations of night-migrating birds by making continual audio recordings of the night sky from a transect of seven recording stations across New York State in fall 1991-1993 and at one recording station in south Texas in spring 1995. Bird calls on these audio recordings were later detected by human listening and by automatic sound-detection software. Vocalizations of several migr...

Habitat acquisition strategies for grassland birds in an urbanizing landscape.

Habitat protection for grassland birds is an important component of open space land acquisition in suburban Chicago. We use optimization decision models to develop recommendations for land protection and analyze tradeoffs between alternative goals. One goal is to acquire (and restore if necessary) as much grassland habitat as possible for a given budget. Because a viable habitat for grassland b...

Testing the microclimate hypothesis: Light environment and population trends of Neotropical birds

Species vary in their vulnerability to extirpation or extinction in response to habitat loss, including deforestation. A variety of correlates of vulnerability have been found, but few empirical data have been gathered that provide insight into potential causation. We attempted to elucidate cause via a test of the ‘‘microclimate hypothesis’’ at two sites in the northern Neotropics. We censussed...