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Changes in the native fauna of the Galapagos Islands following invasion by the little red fire ant, Wasmannia auropunctata
- Y. Lubin
- Environmental Science
The little fire ant, Wasmannia auropunctata, occurs on five islands in the Galapagos archipelago and was found to reduce population densities, or eliminate altogether, three species of arachnids as well as reducing the overall abundance and species diversity of flying and arboricolous insects.
The functions of societies and the evolution of group living: spider societies as a test case
It is argued that functional explanations help to understand the social structure of spider groups and therefore the evolutionary potential for speciation in social spiders.
Foraging decisions and behavioural flexibility in trap‐building predators: a review
- I. Scharf, Y. Lubin, O. Ovadia
- Environmental ScienceBiological reviews of the Cambridge Philosophical…
- 1 August 2011
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.
Adaptive advantages and the evolution of colony formation in Cyrtophora (Araneae: Araneidae)
- Y. Lubin
- 1 June 1974
Under optimal conditions, low level aggression occurring during prey capture and web construction may be interpreted as instances of reciprocal altruism among related colony members, and advantages of communal organization postulated for C. moluccensis includes increased protection of egg-cases and young, greater web building efficiency, greater prey capture efficiency and the ability to exploit habitats that are unavailable to solitary species.
Infanticide by males in a spider with suicidal maternal care, Stegodyphus lineatus (Eresidae)
Females that lost their egg sacs by infanticide suffered a reduced survival probability and suffered a fecundity cost: replacement clutches were smaller than the original clutches and the reduction in egg number was greater with increasing intervals between the first and second clutch.
Intersexual conflict in spiders
The interacting influences of life-history traits (especially patterns of growth and maturation and sexual size dimorphism) and the reproductive strategies of males and females are discussed, using a semelparous spider, Stegodyphus lineatus (Eresidae), as an example of a species in which males and Female can have strongly conflicting interests.
DISPERSAL OF STEGODYPHUS DUMICOLA (ARANEAE, ERESIDAE): THEY DO BALLOON AFTER ALL!
It is shown that adult Stegodyphus dumicola (Eresidae) Pocock 1898 are able to gain up-lift by releasing a very large number of threads, which enables even large spiders to disperse over large distances.
The age and evolution of sociality in Stegodyphus spiders: a molecular phylogenetic perspective
- J. Johannesen, Y. Lubin, D. Smith, T. Bilde, J. Schneider
- BiologyProceedings of the Royal Society B: Biological…
- 22 January 2007
A partial molecular phylogeny of the genus Stegodyphus is addressed, addressing the hypothesis that social spiders in this genus are evolutionary transient and estimating the age of the three social species, test whether they represent an ancestral or derived state and assess diversification relative to subsocial congeners.