Geographical variation in agonistic behaviour in a ring species of salamander, Ensatina eschscholtzii

Erika B. Wiltenmuth, Kiisa C Nishikawa

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Ensatina eschscholtzii is a plethodontid salamander with several geographical races distributed in a ring-like series throughout the coastal mountains and inland Sierra Nevada mountains of California. Populations of these salamanders show genetic and morphological divergence, and in this study, we examined divergence in overt aggressive, passive aggressive/exploratory, avoidance and sensory behaviours in four populations. Two of the populations represent a zone of secondary contact between coastal and inland lineages of Ensatina. We recorded behaviour of resident salamanders paired with same-sex intruders during the non-courtship season. The residents' behaviour was affected independently by the population of the resident and the population of the intruder but not by the interaction between the resident population and the intruder population. Levels of agonistic and sensory behaviour showed a high degree of constraint among the populations. These behaviours also showed divergence among coastal and inland populations, and the geographical variation in behaviour is consistent with the phylogenetic history of Ensatina. Convergent evolution of behaviour appears to have occurred at the zone of secondary contact between the coastal and inland lineages. Variation in agonistic and sensory behaviour among the populations observed and between the sexes suggests that there may be geographical and sexual variation in territoriality or competition.

Original languageEnglish (US)
Pages (from-to)1595-1606
Number of pages12
JournalAnimal Behaviour
Volume55
Issue number6
DOIs
StatePublished - Jun 1998
Externally publishedYes

Fingerprint

agonistic behavior
geographical variation
salamanders and newts
divergence
secondary contact
convergent evolution
resident population
mountain
territoriality
salamander
mountains
gender
phylogenetics

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Geographical variation in agonistic behaviour in a ring species of salamander, Ensatina eschscholtzii. / Wiltenmuth, Erika B.; Nishikawa, Kiisa C.

In: Animal Behaviour, Vol. 55, No. 6, 06.1998, p. 1595-1606.

Research output: Contribution to journalArticle

@article{7f96793f8a9d4171b95a42b4f48709b3,
title = "Geographical variation in agonistic behaviour in a ring species of salamander, Ensatina eschscholtzii",
abstract = "Ensatina eschscholtzii is a plethodontid salamander with several geographical races distributed in a ring-like series throughout the coastal mountains and inland Sierra Nevada mountains of California. Populations of these salamanders show genetic and morphological divergence, and in this study, we examined divergence in overt aggressive, passive aggressive/exploratory, avoidance and sensory behaviours in four populations. Two of the populations represent a zone of secondary contact between coastal and inland lineages of Ensatina. We recorded behaviour of resident salamanders paired with same-sex intruders during the non-courtship season. The residents' behaviour was affected independently by the population of the resident and the population of the intruder but not by the interaction between the resident population and the intruder population. Levels of agonistic and sensory behaviour showed a high degree of constraint among the populations. These behaviours also showed divergence among coastal and inland populations, and the geographical variation in behaviour is consistent with the phylogenetic history of Ensatina. Convergent evolution of behaviour appears to have occurred at the zone of secondary contact between the coastal and inland lineages. Variation in agonistic and sensory behaviour among the populations observed and between the sexes suggests that there may be geographical and sexual variation in territoriality or competition.",
author = "Wiltenmuth, {Erika B.} and Nishikawa, {Kiisa C}",
year = "1998",
month = "6",
doi = "10.1006/anbe.1997.0698",
language = "English (US)",
volume = "55",
pages = "1595--1606",
journal = "Animal Behaviour",
issn = "0003-3472",
publisher = "Academic Press Inc.",
number = "6",

}

TY - JOUR

T1 - Geographical variation in agonistic behaviour in a ring species of salamander, Ensatina eschscholtzii

AU - Wiltenmuth, Erika B.

AU - Nishikawa, Kiisa C

PY - 1998/6

Y1 - 1998/6

N2 - Ensatina eschscholtzii is a plethodontid salamander with several geographical races distributed in a ring-like series throughout the coastal mountains and inland Sierra Nevada mountains of California. Populations of these salamanders show genetic and morphological divergence, and in this study, we examined divergence in overt aggressive, passive aggressive/exploratory, avoidance and sensory behaviours in four populations. Two of the populations represent a zone of secondary contact between coastal and inland lineages of Ensatina. We recorded behaviour of resident salamanders paired with same-sex intruders during the non-courtship season. The residents' behaviour was affected independently by the population of the resident and the population of the intruder but not by the interaction between the resident population and the intruder population. Levels of agonistic and sensory behaviour showed a high degree of constraint among the populations. These behaviours also showed divergence among coastal and inland populations, and the geographical variation in behaviour is consistent with the phylogenetic history of Ensatina. Convergent evolution of behaviour appears to have occurred at the zone of secondary contact between the coastal and inland lineages. Variation in agonistic and sensory behaviour among the populations observed and between the sexes suggests that there may be geographical and sexual variation in territoriality or competition.

AB - Ensatina eschscholtzii is a plethodontid salamander with several geographical races distributed in a ring-like series throughout the coastal mountains and inland Sierra Nevada mountains of California. Populations of these salamanders show genetic and morphological divergence, and in this study, we examined divergence in overt aggressive, passive aggressive/exploratory, avoidance and sensory behaviours in four populations. Two of the populations represent a zone of secondary contact between coastal and inland lineages of Ensatina. We recorded behaviour of resident salamanders paired with same-sex intruders during the non-courtship season. The residents' behaviour was affected independently by the population of the resident and the population of the intruder but not by the interaction between the resident population and the intruder population. Levels of agonistic and sensory behaviour showed a high degree of constraint among the populations. These behaviours also showed divergence among coastal and inland populations, and the geographical variation in behaviour is consistent with the phylogenetic history of Ensatina. Convergent evolution of behaviour appears to have occurred at the zone of secondary contact between the coastal and inland lineages. Variation in agonistic and sensory behaviour among the populations observed and between the sexes suggests that there may be geographical and sexual variation in territoriality or competition.

UR - http://www.scopus.com/inward/record.url?scp=0032102610&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032102610&partnerID=8YFLogxK

U2 - 10.1006/anbe.1997.0698

DO - 10.1006/anbe.1997.0698

M3 - Article

VL - 55

SP - 1595

EP - 1606

JO - Animal Behaviour

JF - Animal Behaviour

SN - 0003-3472

IS - 6

ER -