Patterns and mechanisms for larval aggregation ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Patterns and mechanisms for larval aggregation in carrion beetle Necrodes littoralis (Coleoptera: Silphidae)
Auteur(s) :
Gruszka, Joanna [Auteur]
Krystkowiak-Kowalska, Marta [Auteur]
Fratczak-Lagiewska, Katarzyna [Auteur]
Madra-Bielewicz, Anna [Auteur]
CHARABIDZE, Damien [Auteur]
Centre d'Histoire Judiciaire (CHJ) - UMR 8025
Matuszewski, Szymon [Auteur]
Krystkowiak-Kowalska, Marta [Auteur]
Fratczak-Lagiewska, Katarzyna [Auteur]
Madra-Bielewicz, Anna [Auteur]
CHARABIDZE, Damien [Auteur]
Centre d'Histoire Judiciaire (CHJ) - UMR 8025
Matuszewski, Szymon [Auteur]
Titre de la revue :
Animal Behaviour
Nom court de la revue :
Anim. Behav.
Numéro :
162
Pagination :
1-10
Éditeur :
Elsevier Masson
Date de publication :
2020-04-01
ISSN :
0003-3472
Mot(s)-clé(s) en anglais :
behavioural ecology
thermoregulation
necrophagy
gregariousness
forensic entomology
thermoregulation
necrophagy
gregariousness
forensic entomology
Discipline(s) HAL :
Sciences du Vivant [q-bio]
Résumé en anglais : [en]
Carrion is a patchy, nutrient-rich and frequently bulky resource that hosts a complex community of competing organisms. Several insect species have specialized to use carrion for breeding, revealing a specific suite of ...
Lire la suite >Carrion is a patchy, nutrient-rich and frequently bulky resource that hosts a complex community of competing organisms. Several insect species have specialized to use carrion for breeding, revealing a specific suite of behavioural adaptations. Larvae of carrion insects regularly aggregate while feeding, frequently forming spectacular larval masses. Here we analysed patterns and mechanisms of collective feeding by larvae of the communally breeding carrion beetle Necrodes littoralis. Using results of laboratory behavioural assays and findings from previous field experiments using pig carcasses we found that: (1) under field conditions N. littoralis larval aggregations were prevalent on large carcasses, during late decomposition stages; (2) under laboratory conditions larvae of all instars, when present on meat, formed stable aggregations; (3) larvae consistently responded to thermal characteristics of a feeding environment, aggregating in the hottest place and following changes in the heat source location, which suggests thermal cues are important for their aggregation; and (4) ground-deposited chemical cues elicited a minor response by the third-instar larvae, which indicates these cues are less important for the aggregation of larval N. littoralis. These findings highlight the prevalence of communal feeding among necrophagous insect larvae, revealing the interspecific and intraspecific diversity of patterns and mechanisms for larval aggregation on carrion.Lire moins >
Lire la suite >Carrion is a patchy, nutrient-rich and frequently bulky resource that hosts a complex community of competing organisms. Several insect species have specialized to use carrion for breeding, revealing a specific suite of behavioural adaptations. Larvae of carrion insects regularly aggregate while feeding, frequently forming spectacular larval masses. Here we analysed patterns and mechanisms of collective feeding by larvae of the communally breeding carrion beetle Necrodes littoralis. Using results of laboratory behavioural assays and findings from previous field experiments using pig carcasses we found that: (1) under field conditions N. littoralis larval aggregations were prevalent on large carcasses, during late decomposition stages; (2) under laboratory conditions larvae of all instars, when present on meat, formed stable aggregations; (3) larvae consistently responded to thermal characteristics of a feeding environment, aggregating in the hottest place and following changes in the heat source location, which suggests thermal cues are important for their aggregation; and (4) ground-deposited chemical cues elicited a minor response by the third-instar larvae, which indicates these cues are less important for the aggregation of larval N. littoralis. These findings highlight the prevalence of communal feeding among necrophagous insect larvae, revealing the interspecific and intraspecific diversity of patterns and mechanisms for larval aggregation on carrion.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
CNRS
Université de Lille
Université de Lille
Collections :
Date de dépôt :
2022-08-31T13:17:18Z
2023-10-27T16:39:24Z
2023-10-27T16:39:24Z