IEDA
Project Information
A Multi-scale Approach to Understanding Spatial and Population Variability in Emperor Penguins
Short Title:
Emperor penguin trends
Start Date:
2018-07-15
End Date:
2022-06-30
Description/Abstract
This project on emperor penguin populations will quantify penguin presence/absence, and colony size and trajectory, across the entire Antarctic continent using high-resolution satellite imagery. For a subset of the colonies, population estimates derived from high-resolution satellite images will be compared with those determined by aerial surveys - these results have been uploaded to MAPPPD (penguinmap.com) and are freely available for use. This validated information will be used to determine population estimates for all emperor penguin colonies through iterations of supervised classification and maximum likelihood calculations on the high-resolution imagery. The effect of spatial, geophysical, and environmental variables on population size and decadal-scale trends will be assessed using generalized linear models. This research will result in a first ever empirical result for emperor penguin population trends and habitat suitability, and will leverage currently-funded NSF infrastructure and hosting sites to publish results in near-real time to the public.
Personnel
Person Role
LaRue, Michelle Investigator and contact
Ito, Emi Co-Investigator
Jenouvrier, Stephanie Co-Investigator
Funding
Antarctic Organisms and Ecosystems Award # 1744989
Antarctic Organisms and Ecosystems Award # 1744794
AMD - DIF Record(s)
Deployment
Deployment Type
B343M airborne survey
Data Management Plan
None in the Database
Product Level:
0 (raw data)
Datasets
Repository Title (link) Format(s) Status
USAP-DC Detecting climate signals in populations: case of emperor penguin Not Provided exists
USAP-DC Landfast ice: a major driver of reproductive success in a polar seabird Not Provided exists
Publications
  1. Jenouvrier S., Iles D., Labrousse S., Landrum L., Garnier J., Caswell H., Barbraud C., Weimerskirch H., LaRue M., Ji R., Holland M. (2020). The Paris Agreement objectives might halt future declines of emperor penguins. Global Change Biology, 26: 1170-1184 (doi:10.1111/gcb.14864)
  2. Labrousse S., Fraser A., Sumner M., Le Manach F., Sauser C., Horstmann I., Devane E., Delord K., Jenouvrier S., † and Christophe B†. (2021). Landfast ice: a major driver of reproductive success in a polar seabird. Biology Letter, 7: 20210097 (doi:10.1098/rsbl.2021.0097)
  3. Labrousse, S., Fraser, A. D., Sumner, M., Tamura, T., Pinaud, D., Wienecke, B., … Jenouvrier, S. (2019). Dynamic Fine‐Scale Sea Icescape Shapes Adult Emperor Penguin Foraging Habitat in East Antarctica. Geophysical Research Letters, 46(20), 11206–11218. (doi:10.1029/2019gl084347)
  4. Jenouvrier S., Long M., Coste C.F.D, Holland M., Gamelon M., Yoccoz N.G., Sæther B-E. Detecting climate signals in populations across life histories. Submitted to Global Change Biology. (doi:10.1111/gcb.16041)

This project has been viewed 34 times since May 2019 (based on unique date-IP combinations)