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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216208:11310/18:10390426

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GA15-07140S" target="_blank" >GA15-07140S: Termální nika: zhodnocení současného konceptu u ektotermních obratlovců</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Thermal Biology

ISSN

0306-4565

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

257-262

Kód UT WoS článku

000454467700031

EID výsledku v databázi Scopus

2-s2.0-85055320100