PMID- 15855743
OWN - NLM
STAT- MEDLINE
DCOM- 20050627
LR  - 20080605
IS  - 0006-8977 (Print)
IS  - 0006-8977 (Linking)
VI  - 66
IP  - 1
DP  - 2005
TI  - Evolution of bower complexity and cerebellum size in bowerbirds.
PG  - 62-72
AB  - To entice females to mate, male bowerbirds build elaborate displays (bowers). 
      Among species, bowers range in complexity from simple arenas decorated with 
      leaves to complex twig or grass structures decorated with myriad colored objects. 
      To investigate the neural underpinnings of bower building, we examined the 
      contribution of variation in volume estimates of whole brain (WB), telencephalon 
      minus hippocampus (TH), hippocampus (Hp) and cerebellum (Cb) to explain 
      differences in complexity of bowers among 5 species. Using independent contrasts, 
      we found a significant relationship between bower complexity and Cb size. We did 
      not find support for correlated evolution between bower complexity and WB, TH, or 
      Hp volume. These results suggest that skills supported by the cerebellum (e.g., 
      procedural learning, motor planning) contribute to explaining the variation in 
      bower complexity across species. Given that male mating success is in part 
      determined by female choice for bower design, our data are consistent with the 
      hypothesis that sexual selection has driven enlargement of the cerebellum in 
      bowerbirds.
CI  - Copyright 2005 S. Karger AG, Basel.
FAU - Day, Lainy B
AU  - Day LB
AD  - Department of Ecology, University of California, Santa Barbara, Calif., USA. 
      lainyday@ucla.edu
FAU - Westcott, David A
AU  - Westcott DA
FAU - Olster, Deborah H
AU  - Olster DH
LA  - eng
GR  - MH 5F32MH12326-03/MH/NIMH NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, U.S. Gov't, P.H.S.
DEP - 20050425
PL  - Switzerland
TA  - Brain Behav Evol
JT  - Brain, behavior and evolution
JID - 0151620
SB  - IM
EIN - Brain Behav Evol. 2008;71(3):230
MH  - Animals
MH  - Birds/anatomy & histology/*physiology
MH  - Cerebellum/anatomy & histology/*physiology
MH  - Hippocampus/anatomy & histology/physiology
MH  - Male
MH  - Nesting Behavior/*physiology
MH  - Phylogeny
MH  - Telencephalon/anatomy & histology/physiology
EDAT- 2005/04/28 09:00
MHDA- 2005/06/28 09:00
CRDT- 2005/04/28 09:00
PHST- 2004/09/01 00:00 [received]
PHST- 2005/01/03 00:00 [accepted]
PHST- 2005/04/28 09:00 [pubmed]
PHST- 2005/06/28 09:00 [medline]
PHST- 2005/04/28 09:00 [entrez]
AID - 85048 [pii]
AID - 10.1159/000085048 [doi]
PST - ppublish
SO  - Brain Behav Evol. 2005;66(1):62-72. doi: 10.1159/000085048. Epub 2005 Apr 25.