Brood translocation and circadian variation of temperature preference in the ant Camponotus mus

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1) When a thermal gradient (20-40° C) was established along a laboratory nest, Camponotus mus nurse workers showed a photoperiodic circadian rhythm of temperature preferences for brood rearing. Two different temperatures were daily selected to translocate the brood, i.e. 30.8° C selected at the midd...

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Autores principales: Roces, F., Núñez, J.A.
Formato: JOUR
Materias:
Ants
Brood development
Camponotus mus
Circadian rhythm
Temperature
ant
brood translocation
circadian rhythm
temperature preference
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00298549_v81_n1_p33_Roces
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00298549_v81_n1_p33_Roces
record_format dspace
spelling todo:paper_00298549_v81_n1_p33_Roces2023-10-03T14:39:46Z Brood translocation and circadian variation of temperature preference in the ant Camponotus mus Roces, F. Núñez, J.A. Ants Brood development Camponotus mus Circadian rhythm Temperature ant brood translocation circadian rhythm temperature preference 1) When a thermal gradient (20-40° C) was established along a laboratory nest, Camponotus mus nurse workers showed a photoperiodic circadian rhythm of temperature preferences for brood rearing. Two different temperatures were daily selected to translocate the brood, i.e. 30.8° C selected at the middle of the photophase, and 27.5° C selected during the scotophase, 8 h later. 2) The daily temperature response of nurse workers consisted of paired high and low-temperature translocations, with a 8 hs-interval in between: high-temperature translocation was shown to be entrained by the photophase length, whereas low-temperature translocation was shown to be dependent on the precedent one. 3) Prey deprivation to the colony modified the brood transport behaviors resulting in translocations of only cocoons and large (ripe) larvae, stages in which the pupation processes are triggered. Small larvae and eggs remained located at 27.5° C. 4) Evaluation of pupa developmental time as well as percentage of pupa mortality at different temperature regimes allowed to construct an efficiency index relating pupa survival and cocoon developmental time. In the range of temperatures selected by nurses, the index reached its maximal values. 5) The ecological significance of these results is discussed. © 1989 Springer-Verlag. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00298549_v81_n1_p33_Roces
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ants
Brood development
Camponotus mus
Circadian rhythm
Temperature
ant
brood translocation
circadian rhythm
temperature preference
spellingShingle Ants
Brood development
Camponotus mus
Circadian rhythm
Temperature
ant
brood translocation
circadian rhythm
temperature preference
Roces, F.
Núñez, J.A.
Brood translocation and circadian variation of temperature preference in the ant Camponotus mus
topic_facet Ants
Brood development
Camponotus mus
Circadian rhythm
Temperature
ant
brood translocation
circadian rhythm
temperature preference
description 1) When a thermal gradient (20-40° C) was established along a laboratory nest, Camponotus mus nurse workers showed a photoperiodic circadian rhythm of temperature preferences for brood rearing. Two different temperatures were daily selected to translocate the brood, i.e. 30.8° C selected at the middle of the photophase, and 27.5° C selected during the scotophase, 8 h later. 2) The daily temperature response of nurse workers consisted of paired high and low-temperature translocations, with a 8 hs-interval in between: high-temperature translocation was shown to be entrained by the photophase length, whereas low-temperature translocation was shown to be dependent on the precedent one. 3) Prey deprivation to the colony modified the brood transport behaviors resulting in translocations of only cocoons and large (ripe) larvae, stages in which the pupation processes are triggered. Small larvae and eggs remained located at 27.5° C. 4) Evaluation of pupa developmental time as well as percentage of pupa mortality at different temperature regimes allowed to construct an efficiency index relating pupa survival and cocoon developmental time. In the range of temperatures selected by nurses, the index reached its maximal values. 5) The ecological significance of these results is discussed. © 1989 Springer-Verlag.
format JOUR
author Roces, F.
Núñez, J.A.
author_facet Roces, F.
Núñez, J.A.
author_sort Roces, F.
title Brood translocation and circadian variation of temperature preference in the ant Camponotus mus
title_short Brood translocation and circadian variation of temperature preference in the ant Camponotus mus
title_full Brood translocation and circadian variation of temperature preference in the ant Camponotus mus
title_fullStr Brood translocation and circadian variation of temperature preference in the ant Camponotus mus
title_full_unstemmed Brood translocation and circadian variation of temperature preference in the ant Camponotus mus
title_sort brood translocation and circadian variation of temperature preference in the ant camponotus mus
url http://hdl.handle.net/20.500.12110/paper_00298549_v81_n1_p33_Roces
work_keys_str_mv AT rocesf broodtranslocationandcircadianvariationoftemperaturepreferenceintheantcamponotusmus
AT nunezja broodtranslocationandcircadianvariationoftemperaturepreferenceintheantcamponotusmus
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