Integrating mechanisms and function: prospects for future research

Brockmann, H. Jane; Oliveira, Rui Filipe; Taborsky, Michael

doi:10.1017/cbo9780511542602.021

Cited by 14 publications

(8 citation statements)

References 170 publications

(169 reference statements)

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“…Alternative social options: animal personality and alternative tactics Variation in animal personality within populations can result from disruptive selection caused by social interactions, if divergent behaviour types provide higher fitness prospects than intermediate types. This process causes bior multi-modal phenotype distributions and has been studied extensively in the context of alternative behavioural and reproductive tactics [70,71]. Research in this field has focused on the question of how different solutions to the same problem can coexist within a population.…”

Section: Adaptive Individual Differences Caused By Developmental Plasmentioning

confidence: 99%

Animal personality due to social niche specialisation

Bergmüller

Taborsky

2010

Trends in Ecology & Evolution

426

350

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The existence of 'animal personality', i.e. consistent individual differences in behaviour across time and contexts, is an evolutionary puzzle that has recently generated considerable research interest. Although social factors are generally considered to be important, it is as yet unclear how they might select for personality. Drawing from ecological niche theory, we explore how social conflict and alternative social options can be key factors in the evolution and development of consistent individual differences in behaviour. We discuss how animal personality research might benefit from insights into the study of alternative tactics and illustrate how selection can favour behavioural diversification and consistency due to fitness benefits resulting from conflict reduction among social partners.

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Section: Adaptive Individual Differences Caused By Developmental Plasmentioning

confidence: 99%

Animal personality due to social niche specialisation

Bergmüller

Taborsky

2010

Trends in Ecology & Evolution

426

350

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“…This may lead to a breakdown in mate monopoly [ 5 ], lowering the reproductive skew in a population and consequently suppressing the expression of ARTs [ 6 ]. However, increasing population density may trigger variations in mate choice [ 7 , 8 ], which may serve to increase reproductive skew and select for costly, novel or elaborate ARTs [ 2 , 9 , 10 ]. Across multiple taxa, large male size is favoured, either through male-male competition or female choice, with little selection on female size (e.g.…”

Section: Introductionmentioning

confidence: 99%

Alternative reproductive tactics and inverse size-assortment in a high-density fish spawning aggregation

2017

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BackgroundAt high densities, terrestrial and marine species often employ alternate reproductive tactics (ARTs) to maximize reproductive benefits. We describe ARTs in a high-density and unfished spawning aggregation of the squaretail grouper (Plectropomus areolatus) in Lakshadweep, India.ResultsAs previously reported for this species, territorial males engage in pair-courtship, which is associated with a pair-spawning tactic. Here, we document a previously unreported school-courtship tactic; where territorial males court multiple females in mid-water schools, which appears to culminate in a unique ‘school-spawning’ tactic. Courtship tactics were conditional on body size, local mate density and habitat, likely associated with changing trade-offs between potential mating opportunities and intra-sexual competition. Counter-intuitively, the aggregation showed a habitat-specific inverse size-assortment: large males courted small females on the reef slope while small males courted equal-sized or larger females on the shelf. These patterns remained stable across two years of observation at high, unfished densities.ConclusionsThese unique density-dependent behaviours may disappear from this aggregation as overall densities decline due to increasing commercial fishing pressure, with potentially large consequences for demographics and fitness.Electronic supplementary materialThe online version of this article (doi:10.1186/s12898-017-0120-5) contains supplementary material, which is available to authorized users.

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“…In addition, both sexes are highly size variable, with males ranging in body length from 15 to 90 mm and females from 12 to 50 mm (Kuschel 2003;CJ Painting unpublished data). The large size variation in males can lead to disparity in reproductive success, which in many species has led to the evolution of alternative reproductive tactics (Gadgil 1972;Shuster & Wade 2003;Brockmann et al 2008). This, in combination with the presence of an exaggerated trait (the elongated rostrum) in males (Painting & Holwell 2013) suggests that L. barbicornis would make an interesting new model species for research on sexual selection and beha-vioural ecology.…”

Section: Introductionmentioning

confidence: 99%

Observations on the ecology and behaviour of the New Zealand giraffe weevil (Lasiorhynchus barbicornis)

Painting

Holwell

2014

New Zealand Journal of Zoology

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The New Zealand giraffe weevil (Lasiorhynchus barbicornis) is an endemic, wood-boring insect (Coleoptera: Brentidae). Despite being a large and charismatic species, very little is known about its life history. We conducted observations of L. barbicornis behaviour and ecology in a wild population west of Auckland and developed a marking system in preparation for a future large-scale observational experiment. We found that giraffe weevils were easily located and observable in the field, and therefore provide a useful model species for behavioural ecology. Adults were found to aggregate, copulate and oviposit on 17 host tree species from 16 families, extending the current host plant association records for this species. A breeding experiment determined that the length of the larval stage is a minimum of 2 years and that the population at emergence has an unbiased sex ratio.

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Integrating mechanisms and function: prospects for future research

Cited by 14 publications

References 170 publications

Animal personality due to social niche specialisation

Animal personality due to social niche specialisation

Alternative reproductive tactics and inverse size-assortment in a high-density fish spawning aggregation

Observations on the ecology and behaviour of the New Zealand giraffe weevil (Lasiorhynchus barbicornis)

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