Advancements in Quantitative Ecology

Development of new or advanced quantitative techniques in analysis and interpretation of ecological data

Abstract

The Quantitative Ecology Project at the Alaska Science Center (ASC) conducts research to address ecological issues of national and international importance by modeling population, community and ecosystem dynamics, designing ecological experiments, estimating biological and ecological parameters, and testing biological and ecological hypotheses. Issues are addressed in the context of broad research programs of the ASC, often relating to trust species managed by the U.S. Department of the Interior, including polar bears, Pacific walruses, sea otters, migratory birds and various species of Pacific salmon, and includes work in marine, freshwater and terrestrial ecosystems of Alaska and neighboring countries. There is a strong emphasis on research that allows future status or conditions to be predicted or forecasted. The focus is on questions of immediate and ongoing concern to the Department of the Interior (DOI) that either cannot be answered with existing quantitative techniques or that require exceptionally complex quantitative analyses.

Products

Title	Type
QFASA Robustness to Assumption Violations: Computer Code	Data
Fatty acid signature data of Chukchi Sea polar bears, 2008-2015	Data
Polar bear population dynamics in the southern Beaufort Sea during a period of sea ice decline	Publication
Diet of yellow-billed loons (Gavia adamsii) in Arctic lakes during the nesting season inferred from fatty acid analysis	Publication
Fatty acid signature data of potential yellow-billed loon prey in the Arctic coastal plain of Alaska, 2009-2011	Data
qfasar: Quantitative Fatty Acid Signature Analysis in R	Data
Assessing the robustness of quantitative fatty acid signature analysis to assumption violations	Publication
Assessing the robustness of quantitative fatty acid signature analysis to assumption violations (Supplementary Data)	Data
ASC Ecosystems Analytics	Project Website

Contacts

Bromaghin, Jeffrey F., 907-786-7086

Status: completed
Start Year: 2009
End Year: 2020

Project Sites

USGS Mission Area and Program

Ecosystems → Wildlife Program

Major Initiatives

USGS - Marine and Freshwater Ecology