Bioenergetics of behavioural strategies in desert income and capital breeders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F25%3A00640514" target="_blank" >RIV/68081766:_____/25:00640514 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00142314

Výsledek na webu

<a href="https://bioone.org/journalArticle/Download?urlId=10.25225%2Fjvb.25042" target="_blank" >https://bioone.org/journalArticle/Download?urlId=10.25225%2Fjvb.25042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.25225/jvb.25042" target="_blank" >10.25225/jvb.25042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bioenergetics of behavioural strategies in desert income and capital breeders

Popis výsledku v původním jazyce

Income and capital breeders adopt distinct reproductive strategies based on available resources. Income breeders rely on resources currently accessible in the environment, while capital breeders rely on stored resources. Bioenergetic performance and trade-off models predict, respectively, that high maintenance cost signals either high energy turnover, supporting behaviours with high energy demands, or allocation and compensation between costly behaviours and physiological maintenance. We studied bioenergetics and personality traits of two sympatric rodent species representing distinct life-history strategies in a harsh desert environment. We found that the putative income breeder, roaming forager African hammadajerboa (Jaculus hirtipes), may operate under performance bioenergetic mechanisms, were high maintenance costs co-express with repeatable exploratory behaviour. In contrast, a putative capital breeder, sedentary hoarder Shaw's jird (Meriones shawi), operates under allocation bioenergetic mechanisms, where maintenance cost negatively correlates with exploratory behaviour. We propose that integrating bioenergetics into the income-capital breeder concept provides proximate and adaptive predictions about how diversity of reproductive strategies is maintained, especially in resource limited environments.

Název v anglickém jazyce

Bioenergetics of behavioural strategies in desert income and capital breeders

Popis výsledku anglicky

Income and capital breeders adopt distinct reproductive strategies based on available resources. Income breeders rely on resources currently accessible in the environment, while capital breeders rely on stored resources. Bioenergetic performance and trade-off models predict, respectively, that high maintenance cost signals either high energy turnover, supporting behaviours with high energy demands, or allocation and compensation between costly behaviours and physiological maintenance. We studied bioenergetics and personality traits of two sympatric rodent species representing distinct life-history strategies in a harsh desert environment. We found that the putative income breeder, roaming forager African hammadajerboa (Jaculus hirtipes), may operate under performance bioenergetic mechanisms, were high maintenance costs co-express with repeatable exploratory behaviour. In contrast, a putative capital breeder, sedentary hoarder Shaw's jird (Meriones shawi), operates under allocation bioenergetic mechanisms, where maintenance cost negatively correlates with exploratory behaviour. We propose that integrating bioenergetics into the income-capital breeder concept provides proximate and adaptive predictions about how diversity of reproductive strategies is maintained, especially in resource limited environments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Vertebrate Biology

ISSN

2694-7684

e-ISSN

2694-7684

Svazek periodika

74

Číslo periodika v rámci svazku

25042

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

25042

Kód UT WoS článku

001595422300001

EID výsledku v databázi Scopus

2-s2.0-105020951438