Evidence of cross-taxon congruence in Neotropical wetlands: Importance of environmental and spatial factors

Lários, Marisa C.; Cunha, Cátia Nunes da; Penha, Jerry; Landeiro, Victor Lemes; Pinho, João Batista de; Aragona, Mônica; Valério, Luciana Mendes; Strüssmann, Christine; Marques, Marinêz Isaac; Lourenço, Luzia S.; Chupel, Tatiane F.; Fernandes, Izaías Médice

doi:10.1016/j.gecco.2017.09.003

Cited by 14 publications

(9 citation statements)

References 80 publications

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“…However, our results confirm that hydroperiod alone cannot explain patterns in species relative abundances, despite sampling across a strong hydroperiod gradient, since there were stronger relationships among the horizontal communities we surveyed than between each horizontal community and our measures of hydroperiod. Similar to our findings, a Norway study reported a strong relationship between biological interactions and plant biomass in alpine grasslands along a precipitation gradient 63 and a highly relevant Brazilian study of floodplain wetlands also found a relationship between hydroperiod and woody plants 64 . Interestingly, although the authors observed a high congruence among the horizontal communities that they studied, including birds, plants and spiders, they concluded that horizontal communities evidencing the highest concordance were more strongly associated with the same environmental factors, such as hydroperiod and flood intensity.…”

Section: Discussionsupporting

confidence: 91%

Wetland hydroperiod predicts community structure, but not the magnitude of cross-community congruence

Daniel

Rooney

2021

Sci Rep

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A major focus in community ecology is understanding how biological interactions and environmental conditions shape horizontal communities. However, few studies have explored whether cross-community interactions are consistent or non-stationary across environmental gradients. Using the relative abundance of birds, aquatic macroinvertebrates and plants, we examined how cross-community congruence varied between short and long-hydroperiod prairie pothole wetlands in southern Alberta. These wetlands are structured by their hydroperiod: the length of time that ponded water is present in the wetland. We compared the strength of cross-community congruence and the strength of congruence between each horizontal community and wetland hydroperiod in wetlands that typically contain ponded water throughout the year to wetlands that dry up every summer. The strength of cross-community relationships was similar between more permanent and more ephemeral wetland classes, suggesting that biological interactions have a near equivalent role in shaping community composition, regardless of hydroperiod. However, because cross-community congruence, measured as the Procrustes pseudo-R value, was, on average, 77% ± SE 12% greater than that between each horizontal community and measures of wetland hydroperiod, we concluded that community structure is not shaped by hydroperiod alone. We attribute the observed cross-community congruence to (1) plants and aquatic macroinvertebrates influence birds through habitat and food provisioning, and (2) birds influence plants and aquatic macroinvertebrates by dispersing their propagules.

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Section: Discussionsupporting

confidence: 91%

Wetland hydroperiod predicts community structure, but not the magnitude of cross-community congruence

Daniel

Rooney

2021

Sci Rep

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“…Second, whereas most of the literature on cross-taxon congruence focusses on localto-regional scales (Lários et al, 2017), this is the first study examining cross-taxon congruence between fish and macrophyte communities at broad spatial scales encompassing all of China. First, we considered for the first time cross-taxon congruence across six aspects of F I G U R E 3 Cross-taxon congruence tests for taxonomic and functional diversity facets between macrophyte and fish assemblages across the studied catchments.…”

Section: Discussionmentioning

confidence: 99%

“…First, we considered for the first time cross-taxon congruence across six aspects of with their turnover and nestedness components. Second, whereas most of the literature on cross-taxon congruence focusses on localto-regional scales (Lários et al, 2017), this is the first study examining cross-taxon congruence between fish and macrophyte communities at broad spatial scales encompassing all of China. Cross-taxon congruence can be driven by mechanisms operating at very different spatial scales such as differences in environmental conditions, biotic interactions, dispersal limitations and speciation (Wolters et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Cross‐taxon congruence of multiple diversity facets of freshwater assemblages is determined by large‐scale processes across China

Molinos

et al. 2019

Freshwater Biology

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An intensively debated issue in ecology is whether variability in the patterns of diversity of different groups of organisms is congruent in space, a phenomenon referred to as cross‐taxon congruence. Whereas this has been previously mainly tested in terms of taxonomic dissimilarity, the role of ecological processes in determining the congruence of multiple diversity facets (i.e. α‐ and β‐diversity, taxonomic, and functional) remains poorly understood. We used a data set of observation records for 469 macrophyte and 543 fish taxa at the catchment‐scale from the existing literature and data bases to test the existence of multi‐faceted congruence patterns and investigate the variables driving them across 214 catchments covering the whole Chinese mainland. We found cross‐taxon congruence of multiple diversity aspects between fish and macrophyte communities. The energy (i.e. diversity is limited by energy availability), area/environmental heterogeneity (i.e. diversity is higher in larger and more heterogeneous areas), and dispersal (i.e. diversity is driven by dispersal) hypotheses were all significantly attributed to the cross‐taxon congruence, suggesting the existence of key repeated mechanisms underlying assemblage organisation. Our study provides new evidence that can further our understanding of the factors and underlying processes explaining cross‐taxon congruence patterns at broad spatial scales in the freshwater realm, the studies of which significantly lag those in the marine and terrestrial realms. The present findings also provide important baseline information for freshwater conservation initiatives.

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“…To understand the mechanisms and patterns important for community assembly it is essential to create a multitaxon approach, allowing for greaterextrapolation power of the results 25 . Considering studies in stream ecology to jointly evaluate taxa that use different parts of the habitat (e.g.…”

Section: Introductionmentioning

confidence: 99%

The importance of common and the irrelevance of rare species for partition the variation of community matrix: implications for sampling and conservation

Brasil

Vieira

Andrade

et al. 2020

Sci Rep

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In community ecology, it is important to understand the distribution of communities along environmental and spatial gradients. However, it is common for the residuals of models investigating those relationships to be very high (> 50%). It is believed that species’ intrinsic characteristics such as rarity can contribute to large residuals. The objective of this study is to test the relationship among communities and environmental and spatial predictors by evaluating the relative contribution of common and rare species to the explanatory power of models. Our hypothesis is that the residual of partition the variation of community matrix (varpart) models will decrease as rare species get removed. We used several environmental variables and spatial filters as varpart model predictors of fish and Zygoptera (Insecta: Odonata) communities in 109 and 141 Amazonian streams, respectively. We built a repetition structure, in which we gradually removed common and rare species independently. After the repetitions and removal of species, our hypothesis was not corroborated. In all scenarios, removing up to 50% of rare species did not reduce model residuals. Common species are important and rare species are irrelevant for understanding the relationships among communities and environmental and spatial gradients using varpart. Therefore, our findings suggest that studies using varpart with single sampling events that do not detect rare species can efficiently assess general distributional patterns of communities along environmental and spatial gradients. However, when the objectives concern conservation of biodiversity and functional diversity, rare species must be carefully assessed by other complementary methods, since they are not well represented in varpart models.

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Evidence of cross-taxon congruence in Neotropical wetlands: Importance of environmental and spatial factors

Cited by 14 publications

References 80 publications

Wetland hydroperiod predicts community structure, but not the magnitude of cross-community congruence

Wetland hydroperiod predicts community structure, but not the magnitude of cross-community congruence

Cross‐taxon congruence of multiple diversity facets of freshwater assemblages is determined by large‐scale processes across China

The importance of common and the irrelevance of rare species for partition the variation of community matrix: implications for sampling and conservation

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