Limited differentiation of fundamental thermal niches within the killifish assemblage from shallow temporary waters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F18%3A00495277" target="_blank" >RIV/68081766:_____/18:00495277 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/18:10390426
Result on the web
<a href="http://dx.doi.org/10.1016/j.jtherbio.2018.10.015" target="_blank" >http://dx.doi.org/10.1016/j.jtherbio.2018.10.015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jtherbio.2018.10.015" target="_blank" >10.1016/j.jtherbio.2018.10.015</a>

Result language
angličtina
Original language name
Limited differentiation of fundamental thermal niches within the killifish assemblage from shallow temporary waters
Original language description
The coexistence of ectothermic species is enabled among other factors by the differentiation of their thermal niches. While this phenomenon is well described from deep temperate lakes, it is unclear whether the same pattern applies to temporary pools. In this study, we examined fundamental thermal niches in three coexisting annual killifish species Nothobranchius furzeri, N. orthonotus and N. pienaari from temporary pools in southern Mozambique. We hypothesized that the disparate thermal requirements of the three congeneric species are a candidate niche component that facilitates their local coexistence. We estimated species’ thermal requirements as preferred body temperatures (Tpref) in a horizontal thermal gradient. Under thermal gradient conditions, sympatric killifish maintained their body temperatures within similar Tpref ranges despite some variation in mean Tpref. The daily variation in water temperature in their native habitats enables killifish to thermoregulate at least for part of the diurnal cycle. We conclude that the coexistence of African annual killifish species is possible without the differentiation of their fundamental thermal niches.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10613 - Zoology

Project
<a href="/en/project/GA15-07140S" target="_blank" >GA15-07140S: Thermal niche: the evaluation of current concept in ectothermic vertebrates</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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