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Functional responses in a lizard along a 3.5-km altitudinal gradient
ID
Guerra Serén, Nina
(
Author
),
ID
Megía-Palma, Rodrigo
(
Author
),
ID
Simčič, Tatjana
(
Author
),
ID
Krofel, Miha
(
Author
),
ID
Guarino, Fabio Maria
(
Author
),
ID
Pinho, Catarina
(
Author
),
ID
Žagar, Anamarija
(
Author
),
ID
Carretero, Miguel A.
(
Author
)
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https://onlinelibrary.wiley.com/doi/10.1111/jbi.14711
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Abstract
Aim: Physiological and metabolic performance are key mediators of the functional response of species to environmental change. Few environments offer such a multifaceted array of stressors as high-altitude habitats, which differ markedly in temperature, water availability, UV radiation and oxygen pressure compared to low-altitude habitats. Species that inhabit large altitudinal gradients are thus excellent models to study how organisms respond to environmental variation. Location: Tenerife island, Canary Islands archipelago (Spain). Taxon: Tenerife lizard (Gallotia galloti, Lacertidae). Methods: We integrated data on age structure, thermal and hydric regulatory behaviour and four metabolic and stress-related biomarkers for an insular lizard that inhabits an extreme altitudinal range (sea level to 3700 m a.s.l.), to understand how an ectotherms' age, ecophysiology and metabolism can be affected by extreme environmental variation. Results: We found marked differences in metabolic stress markers associated with altitude (particularly in the abundance of carbonyl metabolites and relative telomere length), but without a linear pattern along the altitudinal cline. Contrary to expectations, longer telomeres and lower carbonyl content were detected at the highest altitude, suggesting reduced stress in these populations. Evaporative water loss differed between populations but did not follow a linear altitudinal gradient. Lizard age structure or thermal physiological performance did not markedly change across different altitudes. Mixed signals in life-history and thermal ecology across populations and altitude suggest complex responses to variable conditions across altitude in this species. Main Conclusions: Our integrative study of multiple functional traits demonstrated that adaptation to highly divergent environmental conditions in this lizard is potentially linked to an interplay between plasticity and local adaptation variably associated with different functional traits.
Language:
English
Keywords:
ecophysiology
,
evaporative water loss
,
metabolic activity
,
oxidative stress
,
preferred temperatures
,
relative telomere length
,
skeletochronology
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Publication date:
01.01.2023
Year:
2023
Number of pages:
str. 2042-2056
Numbering:
iss. 12, Vol. 50
PID:
20.500.12556/RUL-150469
UDC:
59
ISSN on article:
1365-2699
DOI:
10.1111/jbi.14711
COBISS.SI-ID:
164393731
Publication date in RUL:
18.09.2023
Views:
927
Downloads:
55
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Record is a part of a journal
Title:
Journal of biogeography
Shortened title:
J. Biogeogr.
Publisher:
Blackwell Science
ISSN:
1365-2699
COBISS.SI-ID:
26449965
Licences
License:
CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
Link:
http://creativecommons.org/licenses/by-nc/4.0/
Description:
A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
Secondary language
Language:
Slovenian
Keywords:
ekofiziologija
,
izguba vode
,
metabolna aktivnost
,
oksidativni stres
,
preferenčna temperatura
,
relativna dolžina telomer
,
skeletokronologija
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
P4-0059-2020
Name:
Gozd, gozdarstvo in obnovljivi gozdni viri
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