1996/03/01: Envelope, Prairie Rivers R C & D to George Ware (3.38208)
Date: March 1 1996Creator: Prairie Rivers R C & D
Type: Document
Description:Envelope addressed to George Ware from Prairie Rivers R C & D of Henry, Illinois. Envelope contents are missing.
Extent: 1 envelope
Using Open Source Data to Identify Conservation Priorities at Large Spatial Scales (3.67073)
Date: 2019Type: Dataset
Description:We are in the middle of the sixth mass extinction, due in part to the intensification of human land use. Therefore it is vital to quickly and effectively identify species at risk of extinction if we are to save them. The effects of human land use can extend beyond habitat loss by severing gene flow between subpopulations, making them more susceptible to inbreeding depression. These genetic effects have a negative impact on species viability and need to be considered in long-term conservation planning. One way to address this is by assessing the vulnerability of populations that are unable to reproduce with one another due to habitat fragmentation. In this study we used open source satellite imagery and species occurrence data to create a method for assessing the vulnerability of subpopulations of species. We selected ten focal species of Quercus found in Japan to develop this methodology and were able to identify four subpopulations that are likely threatened. With these data, we were able to identify local gardens and protected areas best situated to aid these subpopulations. Our methods use open source data and do not require costly field expeditions. Thus, this methodology can aid conservationists, who are often limited by cost or location, in quickly assessing the state of a species and the viability of its subpopulations.