The effect of isolation, fragmentation, and population bottlenecks on song structure of a Hawaiian honeycreeper

Ecology and Evolution
Joshua M Pang-ChingPatrick J Hart

Abstract

Little is known about how important social behaviors such as song vary within and among populations for any of the endemic Hawaiian honeycreepers. Habitat loss and non-native diseases (e.g., avian malaria) have resulted in isolation and fragmentation of Hawaiian honeycreepers within primarily high elevation forests. In this study, we examined how isolation of Hawai'i 'amakihi (Chlorodrepanis virens) populations within a fragmented landscape influences acoustic variability in song. In the last decade, small, isolated populations of disease tolerant 'amakihi have been found within low elevation forests, allowing us to record 'amakihi songs across a large elevational gradient (10-1800 m) that parallels disease susceptibility on Hawai'i island. To understand underlying differences among populations, we examined the role of geographic distance, elevation, and habitat structure on acoustic characteristics of 'amakihi songs. We found that the acoustic characteristics of 'amakihi songs and song-type repertoires varied most strongly across an elevational gradient. Differences in 'amakihi song types were primarily driven by less complex songs (e.g., fewer frequency changes, shorter songs) of individuals recorded at low elevation sites co...Continue Reading

References

Jul 22, 1997·Proceedings of the National Academy of Sciences of the United States of America·P R Grant, B R Grant
Aug 11, 2000·Evolution; International Journal of Organic Evolution·D E Irwin
Oct 23, 2002·Evolution; International Journal of Organic Evolution·Hans Slabbekoorn, Thomas B Smith
Jan 26, 2005·Proceedings of the National Academy of Sciences of the United States of America·Bethany L WoodworthDavid Duffy
Oct 20, 2007·Molecular Ecology·Jeffrey T FosterRobert C Fleischer
Oct 9, 2008·Ecological Applications : a Publication of the Ecological Society of America·Paola Laiolo
Jun 18, 2009·Journal of Avian Medicine and Surgery·Carter T Atkinson, Dennis A LaPointe
Jun 22, 2010·Evolution; International Journal of Organic Evolution·Joseph A TobiasNathalie Seddon
Oct 25, 2011·Current Biology : CB·Heather R L LernerRobert C Fleischer
Oct 26, 2011·Evolution; International Journal of Organic Evolution·Alexander N G KirschelThomas B Smith
Sep 6, 2012·Evolution; International Journal of Organic Evolution·Elizabeth Perrault DerryberryRobb Thomas Brumfield
Sep 18, 2012·Conservation Biology : the Journal of the Society for Conservation Biology·Sandra V ValderramaJoseph R Waas
Nov 13, 2012·Trends in Ecology & Evolution·Matthew R WilkinsRebecca J Safran

❮ Previous
Next ❯

Citations

Oct 11, 2019·Royal Society Open Science·Kristina L PaxtonPatrick J Hart
Jul 3, 2021·Biological Reviews of the Cambridge Philosophical Society·David N FisherEric W Wice

❮ Previous
Next ❯

Methods Mentioned

BETA
lava flows
PCA

Software Mentioned

R
PERMANOVA
BIOENV
Raven Pro
PERDIST
PERMDISP
R Development Core Team
R package vegan

Related Concepts

Related Feeds

Antibody Repertoire Diversity

Antibody repertoire diversity and its role during natural infection is a prerequisite for molecular and structural elucidation of functionally protective immunity. Discover the latest insights into antibody diversity here.