Aging and foraging efficiency in an orb-web spider

@article{Anotaux2014AgingAF,
  title={Aging and foraging efficiency in an orb-web spider},
  author={Myl{\`e}ne Anotaux and Camille Toscani and Raymond Leborgne and Nicolas Ch{\^a}line and Alain Pasquet},
  journal={Journal of Ethology},
  year={2014},
  volume={32},
  pages={155-163}
}
Aging is often associated with reduced behavioral performance such as decreased locomotion or food consumption, related to a deterioration in physiological functions. In orb-web spiders, webs are used to capture prey and aging can affect web-building behavior and web structure. Here, we investigated the effect of aging on prey capture in the orb-web spider Zygiella x-notata. The ability of adult females to capture flies was examined at different ages. The rate of prey capture did not change… Expand

Figures and Tables from this paper

Dose old age lead to gluttony? Effects of aging on predation and locomotion in the assassin bug Amphibolus venator
TLDR
The present results showed that locomotor activity decreased with age, similar to findings in many other animal species, however, foraging ability increased with age. Expand
Influence of aging on brain and web characteristics of an orb web spider
TLDR
The statistical relationships between the volume of the brain and web characteristics showed that there was an effect of age on both and aging affects the brain volume and correlates with characteristics (anomalies) of the web. Expand
Orb-weaving spiders show a correlated syndrome of morphology and web structure in the wild
TLDR
The repeatability of web construction and relationship with spider body size the authors found may be common features of intra-population variation in web structure in spiders. Expand
Orb-weaving spiders show a correlated syndrome of morphology and web structure in the wild
TLDR
There was a syndrome between morphology and web structure traits, where larger spiders spun webs that were wider, had webs with increased thread spacing, and the spider tended to react more slowly to a predation threat, and may be common features of intra-population variation in web structure in spiders. Expand
Construction of the orb web in constant and changing abiotic conditions
Orb weaving spiders are thought to alter their web-building in different abiotic conditions to maximise prey capture success, while being as silk-efficient as possible. However, there is limitedExpand
Orb-web inclination in Uloboridae spiders: the role of microhabitat structure and prey capture
TLDR
The results of this study support the view of intraspecific variability in orb-web inclination as a case of foraging optimisation strategy and, possibly, of adaptive plasticity. Expand
Towards simplicity and accuracy: Assessing traditional and new estimators of orb-web capture thread length
TLDR
This study assessed the accuracy of traditional and new CTL estimators and their vulnerability to web shape and asymmetry, and presented a simple new estimator that can be even more accurate, irrespective of whether the webs exhibit circular shapes or asymmetry in thread investment between superior and inferior web parts. Expand
Ontogenetic variation in the predatory behavior of the orb-weaver spider Azilia histrio: detecting changes in behavioral organization
TLDR
This work tested whether there is a difference between the predatory sequences of adult and subadult spiders (Azilia histrio) and identified the most appropriate methodological procedure for the characterization of this difference, and described the foraging system for the first time in the genus Azilia. Expand
Orb-web spiders as Bayesian learners
TLDR
A Bayesian model of spider learning from predation experience is presented and shown to be alone a better fit than spider mass to an existing empirical dataset, and positions orb-web spiders as a potentially ideal study family for animal Bayesian learning. Expand
Short and fast vs long and slow: age changes courtship in male orb-web spiders (Argiope keyserlingi)
TLDR
A change in courtship performance over time, despite strong selection for repeatability, indicates that ageing in male A. keyserlingi may have direct impacts on reproductive performance. Expand
...
1
2
...

References

SHOWING 1-10 OF 43 REFERENCES
Web-building behaviour in the orb-weaving spider Zygiella x-notata: influence of experience
TLDR
The ability of Z. x-notata to modify its building behaviour in response to various stages in predation experienced with a previous web was tested, showing plasticity in web-building behaviour and in the amount of silk used in the short term (from one web to the next). Expand
Body-mass-dependent cost of web-building behavior in an orb weaving spider, Zygiella x-notata
TLDR
It is suggested that spiders may incur greater foraging costs as their body mass increases due to the numerous and complex locomotor bouts needed to build an orb-web. Expand
Adult spiders use tougher silk: ontogenetic changes in web architecture and silk biomechanics in the orb-weaver spider
TLDR
It is found that silk investment increases isometrically with body size, with the exception of greater than expected glue production in larger spiders, and the improved material properties of capture spiral threads and the increased absolute stopping potential of webs are consistent with the hypothesis that rare, large prey items play a crucial role in spiders reaching adulthood and in maximizing fecundity of female orb-weaver spiders. Expand
Ageing alters spider orb-web construction
TLDR
In both short- and long-lived spiders' webs, the CTL and the silk thread parallelism decreased, while the variation of the distances between silk threads increased, however, the number of anomalies per cm and the angle between radii increased in short-lived spider only. Expand
Mass predicts web asymmetry in Nephila spiders
TLDR
It is concluded that the ontogenetic pattern of progressive vertical web asymmetry in Nephila can be explained by optimal foraging due to gravity, to which the opposing selective force may be high web-building costs in the lower orb. Expand
Senescence and food limitation in a slowly ageing spider
TLDR
Although 2Y females foraged less actively than younger females, 2Y did not improve their performance relative to 1Y following food supplementation, which provides evidence for reproductive senescence in a natural spider population. Expand
High-performance spider webs: integrating biomechanics, ecology and behaviour
TLDR
An integrative, mechanistic approach to understanding silk and web function, as well as the selective pressures driving their evolution, will help uncover the potential impacts of environmental change and species invasions on spider success. Expand
Drosophila as a model for age-related impairment in locomotor and other behaviors
TLDR
Progress is reviewed using Drosophila to better understand age-related behavioral declines with a focus on age- related locomotor impairment, which could translate into tremendous gains in quality of life for elderly populations. Expand
Web-building management in an orb-weaving spider, Zygiella x-notata: influence of prey and conspecifics.
TLDR
Under laboratory conditions, the behaviour of Zygiella x-notata in the presence of prey, conspecifics, or both simultaneously was studied; the effect was similar to that of prey alone; it seemed that there was no interactive influence of both factors. Expand
Foraging decisions and behavioural flexibility in trap‐building predators: a review
TLDR
Evidence is provided that the behaviour of trap‐building predators is not stereotypic or fixed as was once commonly accepted, rather it can vary greatly, depending on the individual's internal state and its interactions with external environmental factors. Expand
...
1
2
3
4
5
...