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Cited by 36Animal Behavior and ReproductionInsect-Plant Interactions and ControlInsect and Arachnid Ecology and Behavior

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Larval competition within seeds: From the behaviour process to the ecological outcome in the seed beetle Callosobruchus maculatus

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GUEDES, RAUL N. C., GUEDES, NELSA M. P., SMITH, ROBERT H.·2007·Austral Ecology
DOI 10.1111/j.1442-9993.2007.01769.x
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Abstract

Abstract Environmental conditions experienced by organisms during development can have profound impacts on adult fitness and behaviour. Internally feeding larvae unable to leave the seed selected by their mother face limitations of resource suitability and competition. The host seed may guide the larval behaviour within the seed leading to differential intensity of competition and determining its process and outcome, which varies in strains of the legume seed beetle Callosobruchus maculatus (Coleoptera: Bruchidae). However, the intensity, process and outcome of larval competition in different hosts have yet to be simultaneously considered, the objective of the present study. Here we assessed the intensity, process and outcome of intrastrain larval competition as related to host type, and how they are interrelated. Larval competition was faced with two distinct strategies – scramble and contest competition depending on the insect strain and host seed species. The intensity of competition did not show any straight link with the process and outcome of competition. Only a single strain showed a contest competition process with likely interference between larvae, while the four other strains studied showed the process of scramble competition. The process of scramble competition, however, led to variable outcomes in mung beans based on larval competition curves. Such differences were not apparent on cowpea seeds and either the plateau or the peak expected on the larval fitness curves were not reached preventing the distinction of the competition outcome, a likely consequence of the egg laying behaviour of these strains limiting the maximum number of eggs laid per seed. Seed host species rather than seed size are the likely cause of the differences observed from the initial expectation. The strain showing the process of contest competition increased larval fitness with density of larvae emerged per seed regardless of the host species, an unexpected outcome based on theoretical models. In this case the egg laying behaviour of the adult female is probably the main fitness determinant of its progeny.

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Research works printed but not linked: 4

  1. SAS Institute, 1997, sas/stat User's Guide
  2. Smith R. H., 1985, Behavioural Ecology: Ecological Consequences of Adaptative Behaviour, 423
  3. SPSS, 2000, Sigmaplot 2000: User's Guide
  4. Varley G. C., 1973, Insect Population Ecology

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Metadata

Authors
GUEDES, R. N. C., GUEDES, N. M. P., & SMITH, R. H.
Affiliations
  • Universidade Federal de Viçosa (BR)
  • University of Huddersfield (GB)
Corresponding author
  • GUEDES, RAUL N. C.
  • GUEDES, NELSA M. P.
ORCID
GUEDES, RAUL N. C.
Venue
Austral Ecology
Publisher
Wiley
Published
2007-08-06
Volume
32
Issue
6
Pages
697-707
ISSN
  • 1442-9985 (ISSN-L)
  • 1442-9993
DOI
10.1111/j.1442-9993.2007.01769.x
OpenAlex
W2061247506
Cited by
36
References
36
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2022: 4 · 2021: 1 · 2020: 3 · 2018: 3 · 2017: 4 · 2016: 1 · 2015: 3 · 2014: 2 · 2013: 3 · 2012: 1
FWCI
1.35
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Austral Ecology (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • University of Huddersfield Repository (University of Huddersfield) (submittedVersion)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Ministério da Educação
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect and Arachnid Ecology and Behavior
Keywords
Callosobruchus maculatus, Bruchidae, larval competition, scramble competition, contest competition, mungbean, cowpea, egg-laying behaviour, larval fitness, intraspecific competition

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