Changing patterns of growth in a changing planet: How a shift in phenology affects critical life‐history traits in annual fishes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F19%3A00507318" target="_blank" >RIV/68081766:_____/19:00507318 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1111/fwb.13376" target="_blank" >http://dx.doi.org/10.1111/fwb.13376</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/fwb.13376" target="_blank" >10.1111/fwb.13376</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Changing patterns of growth in a changing planet: How a shift in phenology affects critical life‐history traits in annual fishes
Popis výsledku v původním jazyce
Changes to the timing of key life‐cycle events can alter selection on life‐history traits and have the potential to drive a cascade of effects at the community level. We investigated how the growth rate and sexual maturation of two annual killifish species (Austrolebias bellottii and Austrolebias nigripinnis) were altered by a change in the pattern of precipitation. These are annual species, endemic to ephemeral pools, persist in desiccated sediment as partly developed embryos. We sampled 18 pools supporting populations of both species in a Pampa region adjacent to the Rio Negro in western Uruguay throughout the austral winter of 2015. Fish growth and maturation were monitored from pool inundation to habitat desiccation, along with environmental variables. The region experienced an unprecedented mid‐winter desiccation of pools that usually contain water from autumn to late spring, typically only desiccating in summer. Many desiccated pools were re‐inundated from later rains, generating a second cohort of killifish in some pools (53%) in response to atypical conditions. The second cohort developed more rapidly than the first, with 40% earlier attainment of asymptotic body size. Rapid development of second‐cohort fish was associated with earlier maturation and greater investment in reproductive tissue. The study demonstrated the capacity of annual fish to express developmental plasticity that buffered the negative consequences of an atypical seasonal climatic cycle. The capacity of these annual fishes to cope with alternations to their life cycle will depend on the ability of egg banks in the sediment to tolerate an increased unpredictability of precipitation. Overall, we demonstrate how phenotypic plasticity can mitigate the negative impacts of climate change and associated altered phenology.
Název v anglickém jazyce
Changing patterns of growth in a changing planet: How a shift in phenology affects critical life‐history traits in annual fishes
Popis výsledku anglicky
Changes to the timing of key life‐cycle events can alter selection on life‐history traits and have the potential to drive a cascade of effects at the community level. We investigated how the growth rate and sexual maturation of two annual killifish species (Austrolebias bellottii and Austrolebias nigripinnis) were altered by a change in the pattern of precipitation. These are annual species, endemic to ephemeral pools, persist in desiccated sediment as partly developed embryos. We sampled 18 pools supporting populations of both species in a Pampa region adjacent to the Rio Negro in western Uruguay throughout the austral winter of 2015. Fish growth and maturation were monitored from pool inundation to habitat desiccation, along with environmental variables. The region experienced an unprecedented mid‐winter desiccation of pools that usually contain water from autumn to late spring, typically only desiccating in summer. Many desiccated pools were re‐inundated from later rains, generating a second cohort of killifish in some pools (53%) in response to atypical conditions. The second cohort developed more rapidly than the first, with 40% earlier attainment of asymptotic body size. Rapid development of second‐cohort fish was associated with earlier maturation and greater investment in reproductive tissue. The study demonstrated the capacity of annual fish to express developmental plasticity that buffered the negative consequences of an atypical seasonal climatic cycle. The capacity of these annual fishes to cope with alternations to their life cycle will depend on the ability of egg banks in the sediment to tolerate an increased unpredictability of precipitation. Overall, we demonstrate how phenotypic plasticity can mitigate the negative impacts of climate change and associated altered phenology.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10618 - Ecology
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-01781S" target="_blank" >GA19-01781S: Zdroje vnitropopulační heterogenity ve stárnutí</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Freshwater Biology
ISSN
0046-5070
e-ISSN
—
Svazek periodika
64
Číslo periodika v rámci svazku
10
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
11
Strana od-do
1848-1858
Kód UT WoS článku
000479828400001
EID výsledku v databázi Scopus
2-s2.0-85070093211