Behaviour, morphology and microhabitat use: what drives individual niche variation?
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Post-publication record
- Nature
- Retraction
- Reason
- Duplication of/in Image;Investigation by Journal/Publisher;Unreliable Data;
- Date
- 8/26/2020 0:00
- Flagged by OpenAlex?
- Yes
Source: Retraction Watch, joined by DOI. OpenAlex records retraction as is_retracted, a boolean over a state space with at least four values, so it cannot express an expression of concern, a correction or a reinstatement — it reports them as false, which reads as “fine”.
Abstract
Generalist populations are often composed of individuals each specialized on only a subset of the resources exploited by the entire population. However, the traits underlying such niche variation remain underexplored. Classically, ecologists have focused on understanding why populations vary in their degree of intraspecific niche variation, with less attention paid to how individual-level traits lead to intraspecific differences in niches. We investigated how differences in behaviour, morphology and microhabitat affect niche variation between and within individuals in two species of spider Anelosimus studiosus and Theridion murarium. Our results convey that behaviour (i.e. individual aggressiveness) was a key driver of intraspecific trophic variation in both species. More aggressive individuals capture more prey, but particularly more Coleoptera, Hymenoptera and Diptera. These findings suggest that behavioural traits play a critical role in determining individuals' diet and that behaviour can be a powerful force in driving intraspecific niche variation.
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The record
- Venue
- Biology Letters
- Topic
- Plant and animal studies
- Field
- Agricultural and Biological Sciences
- Canadian institutions
- McMaster University
- Funders
- Division of Integrative Organismal Systems
- Keywords
- Intraspecific competitionBiologyNicheGeneralist and specialist speciesEcological nicheEcologyVariation (astronomy)Niche segregationPopulationEvolutionary biologyHabitat
- Has abstract in OpenAlex
- yes