Site-specific fears: Negev gerbils from same points of origin share anti-predator behavior when translocated to new environments

被引：0

作者：

Menezes, Jorge F. S. ^{[1
,2
,3
,4
]}

Tiano, Inbal ^{[1
]}

Kotler, Burt P. ^{[1
]}

Dixon, Cinnamon M. ^{[1
,5
]}

Dixon, Austin K. ^{[1
]}

机构：

[1] Mamiraua Inst Sustainable Dev, Feline Res Grp, Tefe, Amazonas, Brazil

[2] Ben Gurion Univ Negev, Marco & Louise Mitrani Dept Desert Ecol, SIDEER, BIDR, IL-8499000 Midreshet Ben Gurion, Israel

[3] Ctr Adv Syst Understanding CASUS, Gorlitz, Germany

[4] Helmholtz Zentrum Dresden Rossendorf HZDR, Dresden, Germany

[5] Tall Timbers Res Stn, Tallahassee, FL USA

来源：

BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY | 2024年 / 78卷 / 10期

基金：

以色列科学基金会;

关键词：

Giving-up density; Acclimation; Adaptation; Foraging; Anti-predator behaviour; FORAGING BEHAVIOR; PREDATION RISK; OPTIMAL FORAGERS; TIME ALLOCATION; NATIONAL-PARK; PATCH USE; VIGILANCE; COEXISTENCE; COSTS; APPREHENSION;

D O I：

10.1007/s00265-024-03519-7

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Animals frequently engage in anti-predator behaviour, but the intensity and choice of behaviour is likely dependent on the environment. We used a common-garden experiment to test whether Allenby's gerbils (Gerbillus andersoni allenbyi) from different sites in the Negev Desert show different responses to the same level of risk. We tested whether animals from less covered (more risky) environments cope with predation risk better by foraging longer and faster in open microhabitats. To do so, we captured individuals from three areas that differ in vegetation cover and then quantified food consumption and apprehension in a standard outdoor vivarium (an enclosure). This vivarium simulated a natural environment, with natural moonlight, artificial cover, and two live owls. Animals from less vegetated environments consumed more food but foraged slower and with more apprehension. We also found that some populations prefer to forage more in the first quarter of the lunar cycle than the third, and others prefer the opposite, despite these moon phases having equal luminosity. That suggests an evolutionary coordination game might be at play. Our results show anti-predator behaviour is diverse among populations and similar within, which may hint the existence of different ecotypes if further differences are found.Significance statementIn this study, we analysed whether anti-predator behaviour is consistent within populations, and different among them. We found that gerbils have different anti-predator behaviour depending on their site of origin, and that difference continues even when placed in a common environment. Animals from environments poor in cover foraged slowly and more carefully but did so for a longer time. Interestingly, we also found that when animals from different locations are placed in the same environment together, the average behaviour of this mixed group is similar to the most cautious of the mix.

引用

页数：14