Condors and vultures comprise the only group of terrestrial vertebrates in the world that are
obligate scavengers, and these species move widely to locate ephemeral, unpredictable, and patchily-distributed
food resources. In this study, we used high-resolution GPS location data to quantify
monthly home range size of the critically endangered California...
Large-scale poisoning events are common to scavenging bird species that forage communally, many of which are in decline. To reduce the threat of poisoning and compensate for other persistent threats, management, including supplemental feeding, is ongoing for many reintroduced and endangered vulture populations. Through a longitudinal study of lead exposure...
Published June 1934. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published June 1934. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Mesozooplankton (>200 μm) collected in August and September of 2010 from the northern Gulf of Mexico show evidence of exposure to polycyclic aromatic hydrocarbons (PAHs). Multivariate statistical analysis revealed that distributions of PAHs extracted from mesozooplankton were related to the oil released from the ruptured British Petroleum Macondo-1 (M-1) well...
Relieving phosphorus loading is a key management tool for controlling Lake Erie eutrophication. During the
1960s and 1970s, increased phosphorus inputs degraded water quality and reduced central basin hypolimnetic
oxygen levels which, in turn, eliminated thermal habitat vital to cold-water organisms and contributed to the
extirpation of important benthic macroinvertebrate...