Body Size, Growth, and Feather Mass of the Endangered Hawaiian Moorhen (Gallinula chloropus sandvicensis).
Date
2010-04
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Narrator
Transcriber
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
Honolulu, University of Hawaii Press
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
Body and feather mass data are important in avian studies and are required for determining things such as body condition and energetic carrying capacity. There are 12 subspecies of Common Moorhens (Gallinula chloropus), six continental and six island subspecies, of which two are endangered. Body mass data for multiple individuals are available for only three subspecies, and feather mass data have been reported for only one individual. Body mass (n ¼ 82) and feather mass (n ¼ 2) for adults and body mass for three subadult age classes (n ¼ 27) are provided for the Hawaiian subspecies of Common Moorhen (G. c. sandvicensis). Other body size measurements, including tarsus length, shield-bill length, shield width, and wing cord length also are presented. Adult Hawaiian Moorhen body mass averaged 350.7 g (G50.0 SD; range, 232–522; 95% CI, 339.8–361.6), and young birds appear to develop like young of G. c. chloropus and other Rallidae. Based on published data, G. c. sandvicensis is heavier than G. c. guami, female G. c. chloropus, and G. c. meridionalis; lighter than G. c. garmani and males of G. c. cachinnans; and similar in mass to G. c. cachinnans females, males of G. c. chloropus, and G. c. orientalis. There do not appear to be systematic differences in body mass between mainland (data for four subspecies) and island subspecies (data for three subspecies). Total mass of all feathers for two males was 16.2 and 12.1 g, which made up 3.1% and 3.8%, respectively, of their total body mass.
Description
v. ill. 23 cm.
Quarterly
Quarterly
Keywords
Natural history--Periodicals., Science--Periodicals, Natural history--Pacific Area--Periodicals.
Citation
DesRochers DW, Silbernagle MD, Nadig A, Reed JMl. Body Size, Growth, and Feather Mass of the Endangered Hawaiian Moorhen (Gallinula chloropus sandvicensis). Pac Sci 64(2): 327-334.
Extent
8 p.
Format
Geographic Location
Time Period
Related To
Related To (URI)
Table of Contents
Rights
Rights Holder
Local Contexts
Collections
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.