Integrating thermal physiology within a syndrome

Locomotion, personality and habitat selection in an ectotherm

Marcus Michelangeli, Celine Goulet, Hee S Kang, Bob B M Wong, David G Chapple

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Abstract

1. Physiology and temperature can both have a profound influence on behaviour and metabolism. Despite this, thermal physiology has rarely been considered within the animal personality framework, but could be an inherent mechanism maintaining consistent individual differences in behaviour, particularly in species that need to thermoregulate (i.e. ectotherms).
2. Here, we present evidence for a thermal-behavioural syndrome and detail how it is linked to variation in habitat selection in an Australian lizard, the delicate skink, Lampropholis delicata.
3. We predicted that individuals would occur along a cold–hot continuum—analogues to the slow–fast continuum proposed by the pace-of-life hypothesis—whereby an individual’s placement along a thermal physiological axis will correspond with their placement along a personality axis. We first tested the thermal-behavioural syndrome by measuring the thermal preferences and optimal performance temperature of individual skinks and linking it to their activity, exploratory, social and boldness behaviours.
4. In line with our predictions, we found that individuals with a “hot” thermal type performed optimally at higher temperatures, had faster sprint speeds and were more active, explorative and bold relative to “cold” thermal types.
5. We then monitored each individual’s habitat selection within an artificial environment containing three microhabitats differing in their thermal characteristics.
6. We found that an individual’s thermal type mediated their use of habitat, in which “hot” individuals utilized a hotter microhabitat more regularly than both “cold” and “intermediate” thermal types, suggesting that the thermal-behavioural syndrome could drive ecological niche partitioning in this species.
7. We envisage that the thermal-behavioural syndrome concept is likely to extend to other study systems, particularly to ectothermic organisms that rely heavily on behavioural thermoregulation to maintain optimal body temperature.
Original languageEnglish
Pages (from-to)970-981
Number of pages12
JournalFunctional Ecology
Volume32
Issue number4
DOIs
Publication statusPublished - 1 Apr 2018

Keywords

  • behavioural syndrome
  • life history
  • metabolic rate
  • microhabitat use
  • niche specialization
  • pace-of-life
  • sprint speed

Cite this

@article{ebd34cadb8e04ba28d9e36c3ee080d30,
title = "Integrating thermal physiology within a syndrome: Locomotion, personality and habitat selection in an ectotherm",
abstract = "1. Physiology and temperature can both have a profound influence on behaviour and metabolism. Despite this, thermal physiology has rarely been considered within the animal personality framework, but could be an inherent mechanism maintaining consistent individual differences in behaviour, particularly in species that need to thermoregulate (i.e. ectotherms).2. Here, we present evidence for a thermal-behavioural syndrome and detail how it is linked to variation in habitat selection in an Australian lizard, the delicate skink, Lampropholis delicata.3. We predicted that individuals would occur along a cold–hot continuum—analogues to the slow–fast continuum proposed by the pace-of-life hypothesis—whereby an individual’s placement along a thermal physiological axis will correspond with their placement along a personality axis. We first tested the thermal-behavioural syndrome by measuring the thermal preferences and optimal performance temperature of individual skinks and linking it to their activity, exploratory, social and boldness behaviours.4. In line with our predictions, we found that individuals with a “hot” thermal type performed optimally at higher temperatures, had faster sprint speeds and were more active, explorative and bold relative to “cold” thermal types.5. We then monitored each individual’s habitat selection within an artificial environment containing three microhabitats differing in their thermal characteristics.6. We found that an individual’s thermal type mediated their use of habitat, in which “hot” individuals utilized a hotter microhabitat more regularly than both “cold” and “intermediate” thermal types, suggesting that the thermal-behavioural syndrome could drive ecological niche partitioning in this species.7. We envisage that the thermal-behavioural syndrome concept is likely to extend to other study systems, particularly to ectothermic organisms that rely heavily on behavioural thermoregulation to maintain optimal body temperature.",
keywords = "behavioural syndrome, life history, metabolic rate, microhabitat use, niche specialization, pace-of-life, sprint speed",
author = "Marcus Michelangeli and Celine Goulet and Kang, {Hee S} and Wong, {Bob B M} and Chapple, {David G}",
year = "2018",
month = "4",
day = "1",
doi = "10.1111/1365-2435.13034",
language = "English",
volume = "32",
pages = "970--981",
journal = "Functional Ecology",
issn = "0269-8463",
publisher = "Wiley-Blackwell",
number = "4",

}

Integrating thermal physiology within a syndrome : Locomotion, personality and habitat selection in an ectotherm. / Michelangeli, Marcus; Goulet, Celine; Kang, Hee S; Wong, Bob B M; Chapple, David G.

In: Functional Ecology, Vol. 32, No. 4, 01.04.2018, p. 970-981.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Integrating thermal physiology within a syndrome

T2 - Locomotion, personality and habitat selection in an ectotherm

AU - Michelangeli, Marcus

AU - Goulet, Celine

AU - Kang, Hee S

AU - Wong, Bob B M

AU - Chapple, David G

PY - 2018/4/1

Y1 - 2018/4/1

N2 - 1. Physiology and temperature can both have a profound influence on behaviour and metabolism. Despite this, thermal physiology has rarely been considered within the animal personality framework, but could be an inherent mechanism maintaining consistent individual differences in behaviour, particularly in species that need to thermoregulate (i.e. ectotherms).2. Here, we present evidence for a thermal-behavioural syndrome and detail how it is linked to variation in habitat selection in an Australian lizard, the delicate skink, Lampropholis delicata.3. We predicted that individuals would occur along a cold–hot continuum—analogues to the slow–fast continuum proposed by the pace-of-life hypothesis—whereby an individual’s placement along a thermal physiological axis will correspond with their placement along a personality axis. We first tested the thermal-behavioural syndrome by measuring the thermal preferences and optimal performance temperature of individual skinks and linking it to their activity, exploratory, social and boldness behaviours.4. In line with our predictions, we found that individuals with a “hot” thermal type performed optimally at higher temperatures, had faster sprint speeds and were more active, explorative and bold relative to “cold” thermal types.5. We then monitored each individual’s habitat selection within an artificial environment containing three microhabitats differing in their thermal characteristics.6. We found that an individual’s thermal type mediated their use of habitat, in which “hot” individuals utilized a hotter microhabitat more regularly than both “cold” and “intermediate” thermal types, suggesting that the thermal-behavioural syndrome could drive ecological niche partitioning in this species.7. We envisage that the thermal-behavioural syndrome concept is likely to extend to other study systems, particularly to ectothermic organisms that rely heavily on behavioural thermoregulation to maintain optimal body temperature.

AB - 1. Physiology and temperature can both have a profound influence on behaviour and metabolism. Despite this, thermal physiology has rarely been considered within the animal personality framework, but could be an inherent mechanism maintaining consistent individual differences in behaviour, particularly in species that need to thermoregulate (i.e. ectotherms).2. Here, we present evidence for a thermal-behavioural syndrome and detail how it is linked to variation in habitat selection in an Australian lizard, the delicate skink, Lampropholis delicata.3. We predicted that individuals would occur along a cold–hot continuum—analogues to the slow–fast continuum proposed by the pace-of-life hypothesis—whereby an individual’s placement along a thermal physiological axis will correspond with their placement along a personality axis. We first tested the thermal-behavioural syndrome by measuring the thermal preferences and optimal performance temperature of individual skinks and linking it to their activity, exploratory, social and boldness behaviours.4. In line with our predictions, we found that individuals with a “hot” thermal type performed optimally at higher temperatures, had faster sprint speeds and were more active, explorative and bold relative to “cold” thermal types.5. We then monitored each individual’s habitat selection within an artificial environment containing three microhabitats differing in their thermal characteristics.6. We found that an individual’s thermal type mediated their use of habitat, in which “hot” individuals utilized a hotter microhabitat more regularly than both “cold” and “intermediate” thermal types, suggesting that the thermal-behavioural syndrome could drive ecological niche partitioning in this species.7. We envisage that the thermal-behavioural syndrome concept is likely to extend to other study systems, particularly to ectothermic organisms that rely heavily on behavioural thermoregulation to maintain optimal body temperature.

KW - behavioural syndrome

KW - life history

KW - metabolic rate

KW - microhabitat use

KW - niche specialization

KW - pace-of-life

KW - sprint speed

UR - http://www.scopus.com/inward/record.url?scp=85044928711&partnerID=8YFLogxK

U2 - 10.1111/1365-2435.13034

DO - 10.1111/1365-2435.13034

M3 - Article

VL - 32

SP - 970

EP - 981

JO - Functional Ecology

JF - Functional Ecology

SN - 0269-8463

IS - 4

ER -