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DIFFERENTIAL VARIATION IN THE MEAN ISOTOPIC SIGNATURES OF SPIDER HUNTING STRATEGIES INFLUENCED BY LANDSCAPE FEATURES
Indexado
Scopus SCOPUS_ID:105004679215
DOI 10.29393/CHJAAS41-12DFJE60012
Año 2025
Tipo

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Spiders may play a crucial role as versatile predators within agroecosystems. Their diverse behavioral patterns, organized into different guilds, can significantly impact multitrophic interactions. Natural vegetation cover surrounding orchards can influence this predatory behavior, which in turn can impact the feeding patterns of different spider predatory guilds. This study aims to examine the differences among spider guilds actively foraging on apple orchards with different levels of surrounding natural vegetation density (SNVD). To achieve this, natural carbon and nitrogen isotope enrichment was used to assess the variations in isotopic signatures among spider guilds across a gradient of surrounding natural vegetation cover, categorized into three levels (low, medium, and high density), as an indicator of landscape complexity. The mean carbon and nitrogen isotopic signatures exhibited greater variability in diurnal aerial ambushers and orb-weaving spiders, particularly in landscapes with high complexity. Interestingly, similar variability was observed in samples from orchards surrounded primarily by agricultural land (with low SNVD). No significant differences in spider abundance were found across guilds or SNVD categories in apple orchards, suggesting that the spiders guilds identified in these orchards are not influenced by landscape categories. We further describe the guilds identified, which could potentially contribute to the biological control of pests in apple orchards.

Métricas Externas



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Disciplinas de Investigación



WOS
Agriculture, Multidisciplinary
Agronomy
Scopus
Agricultural And Biological Sciences (All)
SciELO
Agricultural Sciences

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Maldonado-Santos, Enrique - Universidad de Talca - Chile
2 CELIS-DIEZ, JUAN LUIS Hombre Pontificia Universidad Católica de Valparaíso - Chile
Instituto de Ecologia y Biodiversidad - Chile
3 Jaloux, Bruno Hombre L'Institut Agro Rennes-Angers - Francia
4 COTORAS-VIEDMA, DARKO DAVOR Hombre Senckenberg Forschungsinstitut und Naturmuseum - Alemania
California Academy of Sciences - Estados Unidos
5 Travaillé, Emmanuelle - Université de Caen Normandie - Francia
6 LAVANDERO-ICAZA, BLAS EXEQUIEL Hombre Universidad de Talca - Chile

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Financiamiento



Fuente
Alexander von Humboldt-Stiftung
Institute Français and Universidad de Talca

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Agradecimientos



Agradecimiento
We would like to thank the Institute Fran\u00E7ais and Universidad de Talca for their support during Mr. Enrique Maldonado-Santos\u2019s stay in France. We are also deeply grateful to PLATIN\u2019 (Plateau d\u2019Isotopie de Normandie) core facility for conducting the element and isotope analyses used in this study. This research was funded by ANID/PIA/ACT192027. DDC was supported by an Alexander von Humboldt postdoctoral fellowship.

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