Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world
Global climate change poses one of the greatest threats to species persistence. Most analyses of the potential biological impacts have focused on changes in mean temperature, but changes in thermal variance will also impact organisms and populations. We assessed the effects of acclimation to daily v...
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2014
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v9_n9_p_Rojas http://hdl.handle.net/20.500.12110/paper_19326203_v9_n9_p_Rojas |
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paper:paper_19326203_v9_n9_p_Rojas2023-06-08T16:31:25Z Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world Folguera, Guillermo acclimatization climate change environmental temperature exploratory behavior exposure human model Porcellio prediction warming acclimatization animal animal behavior biological model greenhouse effect Isopoda physiology temperature time Acclimatization Animals Behavior, Animal Global Warming Isopoda Models, Biological Temperature Time Factors Global climate change poses one of the greatest threats to species persistence. Most analyses of the potential biological impacts have focused on changes in mean temperature, but changes in thermal variance will also impact organisms and populations. We assessed the effects of acclimation to daily variance of temperature on dispersal and exploratory behavior in the terrestrial isopod Porcellio laevis in an open field. Acclimation treatments were 2460, 2464 and 2468uC. Because the performance of ectotherms relates nonlinearly to temperature, we predicted that animals acclimated to a higher daily thermal variation should minimize the time exposed in the centre of open field, - i.e. increase the linearity of displacements. Consistent with our prediction, isopods acclimated to a thermally variable environment reduce their exploratory behaviour, hypothetically to minimize their exposure to adverse environmental conditions. This scenario as well as the long latency of animals after releases acclimated to variable environments is consistent with this idea. We suggested that to develop more realistic predictions about the biological impacts of climate change, one must consider the interactions between the mean and variance of environmental temperature on animals' performance. © 2014 Rojas et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Fil:Folguera, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v9_n9_p_Rojas http://hdl.handle.net/20.500.12110/paper_19326203_v9_n9_p_Rojas |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
acclimatization climate change environmental temperature exploratory behavior exposure human model Porcellio prediction warming acclimatization animal animal behavior biological model greenhouse effect Isopoda physiology temperature time Acclimatization Animals Behavior, Animal Global Warming Isopoda Models, Biological Temperature Time Factors |
| spellingShingle |
acclimatization climate change environmental temperature exploratory behavior exposure human model Porcellio prediction warming acclimatization animal animal behavior biological model greenhouse effect Isopoda physiology temperature time Acclimatization Animals Behavior, Animal Global Warming Isopoda Models, Biological Temperature Time Factors Folguera, Guillermo Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world |
| topic_facet |
acclimatization climate change environmental temperature exploratory behavior exposure human model Porcellio prediction warming acclimatization animal animal behavior biological model greenhouse effect Isopoda physiology temperature time Acclimatization Animals Behavior, Animal Global Warming Isopoda Models, Biological Temperature Time Factors |
| description |
Global climate change poses one of the greatest threats to species persistence. Most analyses of the potential biological impacts have focused on changes in mean temperature, but changes in thermal variance will also impact organisms and populations. We assessed the effects of acclimation to daily variance of temperature on dispersal and exploratory behavior in the terrestrial isopod Porcellio laevis in an open field. Acclimation treatments were 2460, 2464 and 2468uC. Because the performance of ectotherms relates nonlinearly to temperature, we predicted that animals acclimated to a higher daily thermal variation should minimize the time exposed in the centre of open field, - i.e. increase the linearity of displacements. Consistent with our prediction, isopods acclimated to a thermally variable environment reduce their exploratory behaviour, hypothetically to minimize their exposure to adverse environmental conditions. This scenario as well as the long latency of animals after releases acclimated to variable environments is consistent with this idea. We suggested that to develop more realistic predictions about the biological impacts of climate change, one must consider the interactions between the mean and variance of environmental temperature on animals' performance. © 2014 Rojas et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| author |
Folguera, Guillermo |
| author_facet |
Folguera, Guillermo |
| author_sort |
Folguera, Guillermo |
| title |
Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world |
| title_short |
Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world |
| title_full |
Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world |
| title_fullStr |
Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world |
| title_full_unstemmed |
Coping with daily thermal variability: Behavioural performance of an ectotherm model in a warming world |
| title_sort |
coping with daily thermal variability: behavioural performance of an ectotherm model in a warming world |
| publishDate |
2014 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v9_n9_p_Rojas http://hdl.handle.net/20.500.12110/paper_19326203_v9_n9_p_Rojas |
| work_keys_str_mv |
AT folgueraguillermo copingwithdailythermalvariabilitybehaviouralperformanceofanectothermmodelinawarmingworld |
| _version_ |
1768545668491640832 |