thumbnail

Identifying Kittlitz's Murrelet nesting habitat in North America at the landscape scale

Journal of Fish and Wildlife Management

By:
, , , , and
https://doi.org/10.3996/112015-JFWM-116

Links

Abstract

The Kittlitz's Murrelet (Brachyramphus brevirostris) is a small, non-colonial seabird endemic to marine waters of Alaska and eastern Russia that may have experienced significant population decline in recent decades, in part because of low reproductive success and terrestrial threats. Although recent studies have shed new light on Kittlitz's Murrelet nesting habitat in a few discrete areas, the location and extent of suitable nesting habitat throughout most of its range remains unclear. Here, we have compiled all existing nest records and locations to identify landscape-scale parameters (distance to coast, elevation, slope, and land cover) that provide potential nesting habitat in four regions: northern Alaska, Aleutian Islands, Alaska Peninsula Mountains and Kodiak Island, and Pacific Coastal Mountains (including nearshore interior Canada). We produced a final map classifying 12% (70,411 km2) of the lands assessed as potential Kittlitz's Murrelet nesting habitat, with dense but distinct patches in northern Alaska and a more uninterrupted, narrow band extending across the Pacific Coastal Mountains, Alaska Peninsula Mountains, and Aleutian Islands. The extent of habitat-capable parameter values varied regionally, indicating that the Kittlitz's Murrelet may be able to use a variety of habitats for nesting, depending on availability. Future nesting habitat studies could employ spatially random sampling designs to allow for quantitatively robust modeling of nesting habitat and predictive extrapolation to areas where nests have not been located but likely exist.

Study Area

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Identifying Kittlitz's Murrelet nesting habitat in North America at the landscape scale
Series title:
Journal of Fish and Wildlife Management
DOI:
10.3996/112015-JFWM-116
Volume:
7
Issue:
2
Year Published:
2016
Language:
English
Publisher:
U.S. Fish and Wildlife Service
Contributing office(s):
Western Ecological Research Center
Description:
11 p.
First page:
323
Last page:
333
Country:
Canada, United States
State:
Alaska
Other Geospatial:
Aleutian Islands
Online Only (Y/N):
N
Additional Online Files (Y/N):
N