Community Structure, Distribution and Population Dynamics of Entomobryidae (Collembola)

Vegter, J. J.; Joosse, E. N. G.; Ernsting, G.

doi:10.2307/5105

Cited by 20 publications

(3 citation statements)

References 25 publications

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“…Epiedaphic Collembola assemblage only responded positively to spatial heterogeneity of the environment via plant richness, which potentially contributes to production of a more biochemically diverse litterfall that serves as a direct and/or indirect resource for different populations. A relationship between the composition of Collembola assemblages and vegetation structure and habitat quality has been previously suggested (Davidowitz and Rosenzweig 1998, Vegter et al 1988, Romero-Alcaraz and Ávila 2000, Tanabe et al 2001, Vanbergen et al 2007, Nunes et al 2008, but our study indicated that the aerial biomass in the Caatinga was negatively related to epiedaphic Collembola abundance, suggesting that it is not favored by the high litterfall produced by a few large plant species. In other words, the environmental factors (i) plant species richness and (ii) aerial biomass were negatively related to each other in the study area.…”

Section: Discussionsupporting

confidence: 50%

Effects of habitat heterogeneity on epiedaphic Collembola (Arthropoda: Hexapoda) in a semiarid ecosystem in Northeast Brazil

Ferreira¹,

Rocha²,

Bellini³

et al. 2018

Zoologia

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The spatial distribution of abiotic resources and environmental conditions can vary at small scales within terrestrial ecosystems, influencing the composition of soil fauna. Epiedaphic springtails (Collembola) of a semiarid Caatinga ecosystem were studied to determine if factors related to vegetation structure, such as species richness, aerial biomass, litterfall, and soil characteristics (pH, granulometry and soil organic matter), influence species richness and abundance of this group. A total of 5,513 individuals were collected of 15 species distributed in 13 genera and 9 families. The most abundant species wereTemeritassp., with 2,086 (38% of the total abundance) individuals, andNeotropiellameridionalis(Arlé, 1939), with 1,911 (35% of the total abundance) individuals. None of the variables in the regression model were significantly related to Collembola species richness, but abundance was significantly related to plant species richness, aerial biomass and soil pH. Thus, even at a small spatial scale, habitat heterogeneity influences the epiedaphic Collembola in the Caatinga ecosystem, especially their abundance.

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Section: Discussionsupporting

confidence: 50%

Effects of habitat heterogeneity on epiedaphic Collembola (Arthropoda: Hexapoda) in a semiarid ecosystem in Northeast Brazil

Ferreira¹,

Rocha²,

Bellini³

et al. 2018

Zoologia

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“…A thick humus layer conserves water during dry periods and might reflect seasonal moisture conditions for the springtails better than the measured moisture content (Vegter et al. ). The soil properties that explained high abundance of the adults (thick humus layer and low relative amount of organic material) indicates that beneficial microhabitats are those that ensure protection from dehydration and consist of litter that decomposes quickly (much microbial activity).…”

Section: Discussionmentioning

confidence: 99%

Age and level of self‐organization affect the small‐scale distribution of springtails (Collembola)

et al. 2018

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In studies of community assembly, species are often assumed to have similar spatial distributions and responses to the environment regardless of age or size. Under this assumption, it is possible to use species and species‐level traits in community composition studies. Here, we test this assumption for two species of soil‐living arthropods (springtails: Collembola) with direct development but assumed differences in self‐organizing behavior. We expected that the species with more pronounced social interactions (Hypogastrura tullbergi) should be less influenced by environmental factors and species interactions across all age classes, than Folsomia quadrioculata that is not known to exhibit social behavior. We used variance partitioning to examine the relative contributions of soil variables, vegetation composition, and other Collembola, vs. spatial variables (as a proxy for intraspecific interactions, i.e., self‐organization), on the distribution of the two species and three of their age classes. We show that two coexisting species with clear aggregation patterns greatly differ in how much the environment contributes to affecting the species’ spatial structure. Local F. quadrioculata abundance was explained by different spatial and environmental variables depending on age class. In contrast, for H. tullbergi, spatial variables explained more of the abundance variation in all age classes. These differences have implications for the general predictability of changes in spatial structuring of species, as self‐organized species may be less likely to respond to changes in environmental factors. Our results show that because age classes may be differentially affected by environmental conditions, caution should be taken when assuming that species traits can be applied to all developmental stages in a species.

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“…However, some laboratory experiments give an indication of competition and inference that might influence reproduction and, hence, community structure of Collembola (Christiansen 1967, Culver 1975, Longstaff 1976, Christiansen et al 1992. Also, the linear relations between log abundance and rank that have been observed in surface-dwelling Collembolan communities are likely to be the result of a niche preemption process (Vegter et al 1988, Kampichler 1992 and suggest a certain degree of interactivity. Hopkin (1997), however, doubts that interactions between Collembola should be of ecological consequence to species distributions.…”

Section: Discussionmentioning

confidence: 99%

Local and regional species richness in communities of surface-dwelling grassland Collembola: indication of species saturation

Winkler¹,

Kampichler²

2000

Ecography

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2000. Local and regional species richness in communities of surface-dwelling grassland Collembola: indication of species saturation. -Ecography 23: 385-392.The relationship of local (LSR) versus regional species richness (RSR) provides an insight into patterns of species diversity. We examined communities of surfacedwelling Collembola in ten differently sized, temperate dry grasslands. To register genuine manifestations of saturation or proportional sampling, accurate determination of species pools is essential. Therefore, we applied the first-order jackknife as a species-richness estimator for LSR and introduce here a method for defining a range within which the real RSR probably lies. Our data exhibited similar levels of local Collembolan species richness across all regions, largely independent of regional richness. This curvilinear relationship between LSR and RSR indicates that a limit is present for the number of species that can locally coexist, suggesting local interactions and community saturation. We discuss several conditions that may cause pseudo-proportionality or pseudosaturation, i.e. artificial relationships between LSR and RSR. Furthermore, we test the LSR-RSR relationship for possible effects of autocorrelation.

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Community Structure, Distribution and Population Dynamics of Entomobryidae (Collembola)

Cited by 20 publications

References 25 publications

Effects of habitat heterogeneity on epiedaphic Collembola (Arthropoda: Hexapoda) in a semiarid ecosystem in Northeast Brazil

Effects of habitat heterogeneity on epiedaphic Collembola (Arthropoda: Hexapoda) in a semiarid ecosystem in Northeast Brazil

Age and level of self‐organization affect the small‐scale distribution of springtails (Collembola)

Local and regional species richness in communities of surface-dwelling grassland Collembola: indication of species saturation

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