Possible niche differentiation of two desert wandering spiders of the genus Syspira (Araneae: Miturgidae)

Nieto-Castañeda, Irma Gisela; Jiménez-Jiménez, María Luisa

doi:10.1636/p08-94.1

Cited by 16 publications

(13 citation statements)

References 32 publications

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“…Although P. rubrolineata and P. flava are sympatric and their population dynamics are similar throughout the year, the general pattern of spatial segregation registered occurred in the two years of study. This type of segregation as a central axis in the coexistence of sympatric spiders has been recorded in other cursorial spiders of the genus Syspira (Miturgidae), where two species of Miturgidae also exhibited different spatial distribution (differences in temperature and humidity at the site (Nieto-Castañeda & Jiménez-Jiménez 2009). In a central Amazon forest, Gasnier & Höfer (2001) also recorded significant differences in the habitat types used by four species of Ctenus (Ctenidae).…”

Section: Discussionsupporting

confidence: 56%

Niche partitioning and coexistence of two spiders of the genusPeucetia(Araneae, Oxyopidae) inhabitingTrichogoniopsis adenanthaplants (Asterales, Asteraceae): a population approach

Villanueva-Bonilla

Safuan-Naide

et al. 2019

Preprint

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Niche theory suggests that the coexistence of ecologically similar species at the same site requires some form of resource partitioning that reduces or avoids interspecific competition. Here, we investigated the temporal and spatial niche differentiation of two sympatric congeneric spiders,Peucetia rubrolineataandP. flava, inhabitingTrichogoniopsis adenantha(Asteraceae) plants along an altitudinal gradient in various shaded and open areas in an Atlantic forest in Serra do Japi, SP, Brazil. In theory, the coexistence of twoPeucetiaspecies could be explained by: (1) temporal segregation; (2) differential use of the branches of the plant; (3) differential use of specific parts of the branches of the plant; (4) differential distribution in shaded and open areas; and (5) differential altitudinal distribution of the twoPeucetiaspecies. With respect to temporal niche, we observed that the two spider species had a similar age structure and similar fluctuation in abundance throughout the year. With respect to micro-habitat use, in both species, different instars used different plant parts, while the same instars of both species used the same type of substrate. However, the twoPeucetiaspecies segregated by meso-habitat type, withP. rubrolineatapreferringT. adenanthaplants in shaded areas andP. flavapreferring those in open areas. Our results support the hypothesis of niche partitioning begetting diversity, and highlight the importance of analysing habitat use at multiple scales to understand mechanisms related to coexistence.

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Section: Discussionsupporting

confidence: 56%

Niche partitioning and coexistence of two spiders of the genusPeucetia(Araneae, Oxyopidae) inhabitingTrichogoniopsis adenanthaplants (Asterales, Asteraceae): a population approach

Villanueva-Bonilla

Safuan-Naide

et al. 2019

Preprint

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“…Such morphological differences would reduce the overlap of resource utilization (Schoener 1974a). This pattern has been observed, for example, in the canine teeth diameter of carnivores (Pimm and Gitteman 1990), the incisor arcade structure in herbivorous mammals (Du Toit 1990), and the body size of congeneric spiders (Nieto-Castañeda and Jiménez-Jiménez 2009). …”

Section: Electronic Supplementary Materialsmentioning

confidence: 90%

Adult feeding moths (Sphingidae) differ from non-adult feeding ones (Saturniidae) in activity-timing overlap and temporal niche width

Camargo

Corrêa

et al. 2015

Oecologia

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According to classic ecology, resource partitioning by segregation along at least one of the three main niche axes (time, food, and space) must take place for the coexistence of species with similar ecological requirements. We used nocturnal light traps to investigate the assemblage structuration of two moth families: Sphingidae (23 species) and Saturniidae (13 species). Because competition for food among adults potentially occurs only among sphingids, only for this family did we expect less overlap of diel activity patterns than expected by chance and also a greater temporal niche width compared to saturniids. Moreover, we expected a greater number of sphingid species pairs to differ in activity timing compared to saturniid pairs. We also hypothesized that in the case of a lack of temporal structuration, sphingids would be morphologically structured in relation to proboscis length. Contrary to what we expected, both families overlapped their activity patterns more than expected by chance alone and sphingid moths were not morphologically structured. Nevertheless, there were 173 significant pairwise differences in temporal activity between sphingids, contrasting with no interspecific differences between saturniids. Sphingid species also showed a wider temporal niche width than saturniids, as expected. Predation risk and abiotic factors may have caused the overall similarities in activity patterns for both families. The temporal niche seemed not to be determinant for the assemblage structuration of moths as a whole for either of the studied families, but segregation along the temporal niche axis of some potentially competing species pairs can be a relevant factor for the coexistence of nectar-feeding species.

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“…De Meester et al ., ), it could explain the low morphological differences observed between P. a. purbeckensis and P. a. agrestis . Indeed several cases of sibling species with similar morphology and habitat exist in spiders (Töpfer‐Hofmann, Cordes & von Helversen, ), and they can cohabit, with little competition, thanks to spatial partitioning (Nieto‐Castañeda & Jiménez‐Jiménez, ).…”

Section: Discussionmentioning

confidence: 99%

Intra- and inter-specific variation in size and habitus of two sibling spider species (Araneae: Lycosidae): taxonomic and biogeographic insights from sampling across Europe

Puzin

Leroy

Pétillon

2014

Biol J Linn Soc Lond

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International audienceDiscriminating closely related species can become a taxonomical challenge if a clear morphological diagnosis is lacking. Two subspecies have been recognized in Pardosa agrestis (Westring, 1861); however, their validity is still debated. To resolve this dilemma, quantitative and qualitative traits were measured for 30 females and 30 males per site from ten localities throughout Western Europe (11 measurements on each individual) and compared between subspecies. Mean annual temperature and geographical coordinates from all sites were also included in the statistical models in order to test for variations in size over the distribution range of each subspecies. We found significant differences in body size and size of copulatory organs as well as accurate criteria of discrimination between P. a. agrestis and P. a. purbeckensis F.O.P. Cambridge, 1895, suggesting that these taxa are two valid morphological species, occurring sympatrically. We also showed that temperatures did not directly influence the size of individuals, but that one species had smaller individuals at higher latitudes (following the converse Bergmann's rule), and that both species had larger individuals in centrally sampled populations (fitting to the centre hypothesis). (C) 2014 The Linnean Society of London

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Possible niche differentiation of two desert wandering spiders of the genus Syspira (Araneae: Miturgidae)

Cited by 16 publications

References 32 publications

Niche partitioning and coexistence of two spiders of the genusPeucetia(Araneae, Oxyopidae) inhabitingTrichogoniopsis adenanthaplants (Asterales, Asteraceae): a population approach

Niche partitioning and coexistence of two spiders of the genusPeucetia(Araneae, Oxyopidae) inhabitingTrichogoniopsis adenanthaplants (Asterales, Asteraceae): a population approach

Adult feeding moths (Sphingidae) differ from non-adult feeding ones (Saturniidae) in activity-timing overlap and temporal niche width

Intra- and inter-specific variation in size and habitus of two sibling spider species (Araneae: Lycosidae): taxonomic and biogeographic insights from sampling across Europe

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