A phylogenetic classification of jumping spiders (Araneae: Salticidae)

Maddison, Wayne P.

doi:10.1636/arac-43-03-231-292

Cited by 206 publications

(268 citation statements)

References 241 publications

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“…and most of the species in this large family of almost 6000 described species [15] may feed primarily on insects [16]. However, spiders are the preferred prey of a sizeable minority [17], with species from the genus Portia being the most thoroughly investigated members of this minority [18].…”

Section: Introductionmentioning

confidence: 99%

Representation of different exact numbers of prey by a spider-eating predator

Cross

Jackson

2017

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Our objective was to use expectancy-violation methods for determining whether Portia africana , a salticid spider that specializes in eating other spiders, is proficient at representing exact numbers of prey. In our experiments, we relied on this predator's known capacity to gain access to prey by following pre-planned detours. After Portia first viewed a scene consisting of a particular number of prey items, it could then take a detour during which the scene went out of view. Upon reaching a tower at the end of the detour, Portia could again view a scene, but now the number of prey items might be different. We found that, compared with control trials in which the number was the same as before, Portia 's behaviour was significantly different in most instances when we made the following changes in number: 1 versus 2, 1 versus 3, 1 versus 4, 2 versus 3, 2 versus 4 or 2 versus 6. These effects were independent of whether the larger number was seen first or second. No significant effects were evident when the number of prey changed between 3 versus 4 or 3 versus 6. When we changed prey size and arrangement while keeping prey number constant, no significant effects were detected. Our findings suggest that Portia represents 1 and 2 as discrete number categories, but categorizes 3 or more as a single category that we call ‘many’.

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Section: Introductionmentioning

confidence: 99%

Representation of different exact numbers of prey by a spider-eating predator

Cross

Jackson

2017

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“…Bavirecta gen. nov. resembles other Baviini (Bavia Simon, 1877, Piranthus Thorell, 1885, Stagetilus Simon, 1885, some Viciriini Simon, 1901 and some Marpissina Simon, 1901 by the flattened body form, broad oval prosoma, tubular abdomen and enlarged front legs (Maddison 2015). However, it can readily be distinguished from them by the following combination of characters: prosoma dorsally with a lighter trapezoid ( Figs 1A, 3A), comparably long RTA, broad proximal lobe with black blotches (glands, arrow in Fig.…”

Section: Diagnosismentioning

confidence: 86%

“…urn:lsid:zoobank.org:pub:51E7D466-5ABE-458B-ACAF-C83CA975BB97 genera with the goal of erecting monophyletic species groups (Maddison 2015). However, such large-scale revisionary studies, though desirable, are difficult to achieve and time consuming.…”

Section: R E S E a R C H A R T I C L Ementioning

confidence: 99%

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A new genus and three new species of jumping spiders (Araneae: Salticidae) from Sri Lanka

Kanesharatnam

Benjamin

2018

EJT

533

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“…They are highly diverse in morphology, behavior and predatory ecology (Foelix 2011;Jackson 1996;Jackson et al 2001), which makes them attractive model organisms for the study of evolutionary phenomena. The jumping spider family (Salticidae) contains more than 595 genera and about 5838 described species placed in 7 subfamilies (Maddison 2015), making it the largest family with about 13% of all spider diversity (World Spider Catalog 2015). Currently, 64 species placed in 48 genera are known from Sri Lanka (World Spider Catalog 2015).…”

Section: Introductionmentioning

confidence: 99%