Environmental heterogeneity, not distance, structures montane epigaeic spider assemblages in north-western Patagonia (Argentina)

Aisen, Santiago; Werenkraut, Victoria; Márquez, Melina; Ramı́rez, Martı́n J.; Ruggiero, Adriana

doi:10.1007/s10841-017-0034-8

Cited by 21 publications

(22 citation statements)

References 46 publications

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“…Climatic factors and/or geographical isolation have been supported function for community composition, distribution of spiders (Finch et al, 2008), carabids (Hendrickx et al, 2009) and ants ) at regional scale. Other studies came to the conclusion that environmental heterogeneity, not spatial distances, control ground arthropods at the regional scale (Aisen et al, 2017). However, the shared fractions between soil and climate variables, and the shared fractions among the various factors contributed to the more than 50% of variations for all arthropods.…”

Section: Discussionmentioning

confidence: 99%

Contrasting beta diversity of spiders, carabids, and ants at local and regional scales in a black soil region, northeast China

et al. 2021

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Understanding the factors determining the formation of each community and metacommunity across a landscape is one of the most important ideas in soil animal ecology. However, the variables and parameters that shape soil arthropod communities in agroecosystems have not been resolved. These arthropods can serve as important bioindicators of field management and its sustainability. We sampled five corn plantations in each of three locations across a region spanning 600 km to come up with these determinants of the community structure of ground-dwelling spiders (Erigoninae: Araneae), carabids (Coleoptera: Carabidae), and ants (Hymenoptera: Formicidae). The analysis of the five fields within each of the three locations represent our local-scale samples, while the comparisons of the 15 sites across all three locations represent the regional scale samples. We tested the hypothesis that in the models we sampled, environmental/soil variables would drive

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Section: Discussionmentioning

confidence: 99%

Contrasting beta diversity of spiders, carabids, and ants at local and regional scales in a black soil region, northeast China

et al. 2021

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“…However, the processes that promote compositional differentiation between local communities (species turnover) remain under debate and differ among habitat types and species groups (Aisen et al., 2017; Murphy et al., 2015; Zellweger et al., 2017). Four mechanisms are considered to account for the species composition of local communities (Figure 1a).…”

Section: Introductionmentioning

confidence: 99%

Dispersal ability, trophic position and body size mediate species turnover processes: Insights from a multi‐taxa and multi‐scale approach

Bae

Heidrich

Levick

et al. 2020

Diversity and Distributions

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Aim Despite increasing interest in β‐diversity, that is the spatial and temporal turnover of species, the mechanisms underlying species turnover at different spatial scales are not fully understood, although they likely differ among different functional groups. We investigated the relative importance of dispersal limitations and the environmental filtering caused by vegetation for local, multi‐taxa forest communities differing in their dispersal ability, trophic position and body size. Location Temperate forests in five regions across Germany. Methods In the inter‐region analysis, the independent and shared effects of the regional spatial structure (regional species pool), landscape spatial structure (dispersal limitation) and environmental factors on species turnover were quantified with a 1‐ha grain across 11 functional groups in up to 495 plots by variation partitioning. In the intra‐region analysis, the relative importance of three environmental factors related to vegetation (herb and tree layer composition and forest physiognomy) and spatial structure for species turnover was determined. Results In the inter‐region analysis, over half of the explained variation in community composition (23% of the total explained 35%) was explained by the shared effects of several factors, indicative of spatially structured environmental filtering. Among the independent effects, environmental factors were the strongest on average over 11 groups, but the importance of landscape spatial structure increased for less dispersive functional groups. In the intra‐region analysis, the independent effect of plant species composition had a stronger influence on species turnover than forest physiognomy, but the relative importance of the latter increased with increasing trophic position and body size. Main conclusions Our study revealed that the mechanisms structuring assemblage composition are associated with the traits of functional groups. Hence, conservation frameworks targeting biodiversity of multiple groups should cover both environmental and biogeographical gradients. Within regions, forest management can enhance β‐diversity particularly by diversifying tree species composition and forest physiognomy.

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“…Unlike boreal forests, the understory stratum in our study is characterized by high densities of shrubs, seedlings, low height trees, tree ferns and epiphytes (Williams‐Linera, ; Campuzano et al ., ). Thus, the high diversity and abundance of spiders observed in this stratum could be derived, in part, from a higher number of available microhabitats that make possible the cohabitation of a greater number of spider species and individuals (Greenstone, ; Finke & Denno, ; Aisen et al ., ). Our results, however, are similar as those from a different TMCF area in the same mountain range (with similar collecting methods), in which higher richness was observed in the understory (Ibarra‐Núñez et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Diversity and seasonal variation of ground and understory spiders from a tropical mountain cloud forest

et al. 2019

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We made intensive samplings to study the seasonal response of spiders across different forest strata (ground and understory) in a tropical mountain cloud forest from Mexico. We sampled spiders from ten plots in six sampling events during the dry and rainy season, to analyze their abundance, structure (distribution of abundance among species), diversity and the response of the five dominant species at each stratum. Results demonstrated that seasonal patterns of spider communities differed among strata, revealing a complex spatiotemporal dynamic. Abundance, structure, diversity of ground spiders, as well as the responses of four dominant species at this stratum, showed low seasonal variations. In contrast, a strong seasonal variation was observed for the understory assemblage, with lowest abundance and highest diversity in the rainy season, and different assemblage structures for each season. Seasonal patterns of each assemblage seem linked to the responses of their dominant species. We found high co-occurrence among most of the ground dominant species with similar habitat use and with multivoltine patterns, contrasting with low co-occurrence among most of the understory dominant species with similar habitat use and univoltine patterns. Our results showed that the spiders' assemblages of tropical mountain cloud forest (opposed to what is found in temperate and boreal forests) increase their species richness with the height, and that their responses to seasonal change differ between strata. Management programs of these habitats should consider the spatial and temporal variations found here, as a better understanding of their ecological dynamics is required to support their sustainable management.

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Environmental heterogeneity, not distance, structures montane epigaeic spider assemblages in north-western Patagonia (Argentina)

Cited by 21 publications

References 46 publications

Contrasting beta diversity of spiders, carabids, and ants at local and regional scales in a black soil region, northeast China

Contrasting beta diversity of spiders, carabids, and ants at local and regional scales in a black soil region, northeast China

Dispersal ability, trophic position and body size mediate species turnover processes: Insights from a multi‐taxa and multi‐scale approach

Diversity and seasonal variation of ground and understory spiders from a tropical mountain cloud forest

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