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Feather development under environmental stress: lead exposure effects on growth patterns in Great Tits Parus major

W TALLOEN, Luc Lens UGent, S VAN DONGEN and E MATTHYSEN (2008) BIRD STUDY. 55(Part 1). p.108-117
abstract
Capsule Regrowth rate of tail feathers is more strongly affected compared to feather length and symmetry. Aims To assess the value of avian feathers as bioindicators. Methods The origin and persistence of fluctuating asymmetry (FA) in homologous pairs of regrowing feathers was studied in captive birds under different levels of environmental stress, respresented by exposure to lead (Pb). Homologous feathers of individually housed birds were plucked synchronously or with a delay of seven days. We measured growth rate, regeneration time, final size and FA of regrown feathers and related them to Pb stress. Results Asymmetry decreased as feathers reached their final length. This was not due to compensatory growth but rather a consequence of the programmed growth trajectory of single feathers. Tail feathers grown under higher Pb pollution showed increased regeneration times, decreased growth rates and shorter lengths, but no changes in development times nor in FA. For differences between both (i) original and induced feathers and (ii) control and Pb treatment, effect sizes of parameters related to feather development (growth bar width, growth rate, regeneration and development time) were consistently larger than those related to the resulting phenotype (feather length and FA). Conclusions Growth bar widths in particular provide an applicable, sensitive and reliable indicator of adverse conditions such as Pb pollution and experimental conditions. In general, phenotypic characteristics that retrospectively allow estimation of growth rates may be more suitable for monitoring environmental stress than sizes or asymmetries of full-grown traits.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
journal title
BIRD STUDY
Bird Stud.
volume
55
issue
Part 1
pages
108-117 pages
Web of Science type
Article
Web of Science id
000254072000013
JCR category
ORNITHOLOGY
JCR impact factor
1.157 (2008)
JCR rank
7/18 (2008)
JCR quartile
2 (2008)
ISSN
0006-3657
language
English
UGent publication?
yes
classification
A1
id
410510
handle
http://hdl.handle.net/1854/LU-410510
date created
2008-05-17 08:59:00
date last changed
2009-05-11 16:13:59
@article{410510,
  abstract     = {Capsule Regrowth rate of tail feathers is more strongly affected compared to feather length and symmetry.

Aims To assess the value of avian feathers as bioindicators.

Methods The origin and persistence of fluctuating asymmetry (FA) in homologous pairs of regrowing feathers was studied in captive birds under different levels of environmental stress, respresented by exposure to lead (Pb). Homologous feathers of individually housed birds were plucked synchronously or with a delay of seven days. We measured growth rate, regeneration time, final size and FA of regrown feathers and related them to Pb stress.

Results Asymmetry decreased as feathers reached their final length. This was not due to compensatory growth but rather a consequence of the programmed growth trajectory of single feathers. Tail feathers grown under higher Pb pollution showed increased regeneration times, decreased growth rates and shorter lengths, but no changes in development times nor in FA. For differences between both (i) original and induced feathers and (ii) control and Pb treatment, effect sizes of parameters related to feather development (growth bar width, growth rate, regeneration and development time) were consistently larger than those related to the resulting phenotype (feather length and FA).

Conclusions Growth bar widths in particular provide an applicable, sensitive and reliable indicator of adverse conditions such as Pb pollution and experimental conditions. In general, phenotypic characteristics that retrospectively allow estimation of growth rates may be more suitable for monitoring environmental stress than sizes or asymmetries of full-grown traits.},
  author       = {TALLOEN, W and Lens, Luc and VAN DONGEN, S and MATTHYSEN, E},
  issn         = {0006-3657},
  journal      = {BIRD STUDY},
  language     = {eng},
  number       = {Part 1},
  pages        = {108--117},
  title        = {Feather development under environmental stress: lead exposure effects on growth patterns in Great Tits Parus major},
  volume       = {55},
  year         = {2008},
}

Chicago
TALLOEN, W, Luc Lens, S VAN DONGEN, and E MATTHYSEN. 2008. “Feather Development Under Environmental Stress: Lead Exposure Effects on Growth Patterns in Great Tits Parus Major.” Bird Study 55 (Part 1): 108–117.
APA
TALLOEN, W., Lens, L., VAN DONGEN, S., & MATTHYSEN, E. (2008). Feather development under environmental stress: lead exposure effects on growth patterns in Great Tits Parus major. BIRD STUDY, 55(Part 1), 108–117.
Vancouver
1.
TALLOEN W, Lens L, VAN DONGEN S, MATTHYSEN E. Feather development under environmental stress: lead exposure effects on growth patterns in Great Tits Parus major. BIRD STUDY. 2008;55(Part 1):108–17.
MLA
TALLOEN, W, Luc Lens, S VAN DONGEN, et al. “Feather Development Under Environmental Stress: Lead Exposure Effects on Growth Patterns in Great Tits Parus Major.” BIRD STUDY 55.Part 1 (2008): 108–117. Print.