A cladistic and comparative analysis of kinematic components of the fast-start of fishes, with a note on body size constraints.
The fast-start is an ecologically relevant behavior pattern in fishes. The present article analyses the distribution of five continuous kinematic traits (latency for response initiation, time to maximum angular velocity, time to maximum displacement velocity, maximum angular velocity, and maximum displacement velocity) in eight of the eleven species described in Eaton (66:65-81, 1977). Phylogenetic generalized least square estimation of ancestor states demonstrated evolutionary changes in maximum angular velocity and maximum displacement velocity, consistent with species differences in the same variables. These changes in maximum velocity are also correlated (phylogenetically independent contrasts) with the mean body sizes of all species, pointing to the possibility that body size was an evolutionary constraint on maximum velocities. The conservation of the other traits suggest that they are mainly constrained by neural control, and a trade-off between neural and body size-constraints is proposed ex hypothesi.
Maximino
Caio
C
Laboratório de Neurociências e Comportamento, Centro de Ciências Biológicas, UFPA, r. Augusto Corrêa 01, 66075-110, Belem, Brazil. caio.maximino@gmail.com
D000818:Animals; D001522:Behavior, Animal; D001696:Biomechanical Phenomena / Q000502:physiology; D049628:Body Size; D004576:Electromyography / Q000379:methods; D005399:Fishes / Q000502:physiology*; D010802:Phylogeny; D011930:Reaction Time / Q000502:physiology*; D013216:Reflex, Startle / Q000502:physiology*; D013045:Species Specificity
Prog Neurobiol. 1999 Oct;59(2):107-28
10463792
J Neurosci. 1993 Oct;13(10):4101-13
8410180
J Exp Biol. 1977 Feb;66(1):65-81
870603
Evolution. 2002 Apr;56(4):776-84
12038535
J Exp Biol. 1997;200(Pt 8):1165-78
9319004
Brain Behav Evol. 1991;37(5):272-85
1933251
J Neurosci. 1994 Mar;14(3 Pt 1):1176-94
8120618
J Exp Biol. 1976 Aug;65(1):157-77
993700
Prog Neurobiol. 2001 Mar;63(4):467-85
11163687
Mol Biol Evol. 1996 Apr;13(4):556-73
8882499
Mol Phylogenet Evol. 1998 Aug;10(1):132-43
9751923
J Exp Biol. 1991 Nov;161:469-87
1757775
J Exp Biol. 1999 Mar;202 (Pt 6):675-82
10021321
Evolution. 2002 May;56(5):993-1007
12093034
Neuron. 2005 Jul 7;47(1):13-28
15996545
Nature. 1975 Jun 26;255(5511):725-7
1134569