Species richness and structure of ant communities in a dynamic archipelago: effects of island area and age

Badano, Ernesto I.; Regidor, Héctor A; Núñez, Hector A.; Acosta, Rebeca; Gianoli, Ernesto

doi:10.1111/j.1365-2699.2004.01174.x

Cited by 49 publications

(40 citation statements)

References 26 publications

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“…Using a database of 45 species and 4540 geographic sites, Adams (2007) analyzed the patterns of co-occurrence by virtue of a null model derived from competitive interactions, and found that patterns of co-occurrence were significantly nonrandom at both regional and continental scales, providing strong evidence for competitive-based community assembly. Nonrandom species co-occurrence patterns can vary with niche differentiation (Hofer et al, 2004), spatial scale (Gotelli and Ellison, 2002), temporal scale (Badano et al, 2005), and assemblage diversity (Badano et al, 2005;Mouillot et al, 2005). However, recent work on ectoparasites in fish (Jackson et al, 1992;Gotelli and Rohde, 2002), birds (Feeley, 2003), and zooplankton (Jenkins, 2006) found little support for nonrandom species co-occurrence patterns.…”

Section: Introductionmentioning

confidence: 93%

Fine-scale species co-occurrence patterns in an old-growth temperate forest

Zhang

Hao

Song

et al. 2009

Forest Ecology and Management

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Section: Introductionmentioning

confidence: 93%

Fine-scale species co-occurrence patterns in an old-growth temperate forest

Zhang

Hao

Song

et al. 2009

Forest Ecology and Management

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“…One possibility is that, contrary to our initial hypothesis, harvesting may have increased environmental heterogeneity among sites, rather than having a homogenizing effect on community composition. Sanders et al 2003, Badano et al 2005). Indeed, previous work in this system has found that, even though control sites had greater litter biomass and less bare ground cover (Kim et al 2017), variation in vegetation structure and soil temperature was lower among the control sites.…”

Section: Harvest Increased B Diversity Of Ants In Grasslandsmentioning

confidence: 99%

Disturbance differentially affects alpha and beta diversity of ants in tallgrass prairies

et al. 2018

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Biodiversity conservation requires understanding how disturbance influences biodiversity patterns at multiple spatial scales. Because the total diversity of species within a given region (c diversity) is influenced by both local diversity (a diversity) and dissimilarity in community composition (b diversity), understanding disturbance effects on both components of diversity is essential, especially if disturbance impacts a and b diversities differently. In this three-year study, we examined how a disturbance (annual harvesting of grasslands) and environmental gradients in the proportion of sand locally, habitat size, and landscape diversity influenced the abundance and a and b diversities of ants within tallgrass prairie habitat in Wisconsin. We used a null-model approach to examine how harvest and environmental factors influence b diversity. Following three years of treatments, we found that ant abundance was greater in harvested sites compared to control sites and ant abundance was positively correlated with soil sandiness. We also found that a diversity was lower in harvested sites compared to control sites and none of the measured environmental gradients influenced a diversity. The effects of harvest on a-diversity patterns may have been mediated through the competitive interactions of the two dominant ant species (Formica montana and Lasius neoniger). In contrast, b diversity (after adjusting for random effects and changes to a diversity) was higher in harvest sites compared to control sites, and variability in community composition was largely driven by the occurrence of rare species. The proportion of sand in the local habitat and habitat size positively influenced b diversity suggesting that community dissimilarity was due in part to environmental filtering and the size of species pools. Because biomass harvest had contrasting effects on ant a and b diversities, trade-offs in maintaining a vs. b diversity might need to be considered in land management and conservation efforts.

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“…For deep-sea environments, Sanders (1968) highlighted earlier the importance of such competitive interactions in affecting species distribution, suggesting that such species interactions would lead to mature benthic communities composed by ''biologically accommodated'' (non-competing) species, which in turn would lead to high diversity (see also Dayton and Hessler 1972;Abele and Walters 1979). However, for terrestrial ecosystems, it has been shown that disturbances could move communities away from this interactive steady state, restarting the assembly processes and causing changes in the species co-occurrence patterns within communities (Badano et al 2005). For macrozoobenthos communities of shallow and deep waters off Chile and Peru, changes in bottom temperatures and oxygen concentration associated to EN represent a strong disturbance (Arntz et al , 1991Arntz and Fahrbach 1996;Tarazona et al 1985Tarazona et al , 1988bTarazona et al , 1996Gallardo 1985;Gutiérrez et al 2000;Gallardo et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…This ''community assembly rule'' proposes that, in a landscape composed by multiple sites (islands or habitat patches), highly competing species must not co-occur, or at least co-occur less than expected by chance, across these sites (Diamond 1975;Fox 2001). This assembly rule assumes that, after assembling occurs, all niches of a given site are occupied, so that species interactions reach a steady state and communities reach their maximum diversity (Bush and Whittaker 1993;Badano et al 2005). For deep-sea environments, Sanders (1968) highlighted earlier the importance of such competitive interactions in affecting species distribution, suggesting that such species interactions would lead to mature benthic communities composed by ''biologically accommodated'' (non-competing) species, which in turn would lead to high diversity (see also Dayton and Hessler 1972;Abele and Walters 1979).…”

Section: Introductionmentioning

confidence: 99%

Subtidal macrozoobenthos communities from northern Chile during and post El Niño 1997–1998

et al. 2007

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Despite a large amount of climatic and oceanographic information dealing with the recurring climate phenomenon El Niño (EN) and its well known impact on diversity of marine benthic communities, most published data are rather descriptive and consequently our understanding of the underlying mechanisms and processes that drive community structure during EN are still very scarce. In this study, we address two questions on the effects of EN on macrozoobenthic communities: (1) how does EN affect species diversity of the communities in northern Chile? and (2) is EN a phenomenon that restarts community assembling processes by affecting species interactions in northern Chile? To answer these questions, we compared species diversity and co-occurrence patterns of soft-bottoms macrozoobenthos communities from the continental shelf off northern Chile during (March 1998) and after (September 1998) the strong EN event 1997-1998. The methods used varied from species diversity and species cooccurrence analyses to multivariate ordination methods. Our results indicate that EN positively affects diversity of macrozoobenthos communities in the study area, increasing the species richness and diversity and decreasing the species dominance. EN represents a strong disturbance that affects species interactions that rule the species assembling processes in shallow-water, sea-bottom environments.

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Species richness and structure of ant communities in a dynamic archipelago: effects of island area and age

Cited by 49 publications

References 26 publications

Fine-scale species co-occurrence patterns in an old-growth temperate forest

Fine-scale species co-occurrence patterns in an old-growth temperate forest

Disturbance differentially affects alpha and beta diversity of ants in tallgrass prairies

Subtidal macrozoobenthos communities from northern Chile during and post El Niño 1997–1998

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