Use of biological traits for interpreting functional relationships in large rivers

Haybach, Arne; Schöll, Franz; König, Bernd; Kohmann, F.

doi:10.1016/s0075-9511(04)80012-4

Cited by 22 publications

(18 citation statements)

References 25 publications

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“…The diVerences between the phylogenetically corrected and uncorrected results were on average small in the present study, but larger diVerences between the results do occur and may aVect the conclusions (Felsenstein 1985;Harvey 1996). We can only be conWdent that the results reXect underlying ecological principles if the Wndings are supported by data comprising several Fig.…”

Section: Variablecontrasting

confidence: 45%

“…For each assemblage, I Wrst calculated the average of each dependent variable using the species-speciWc values weighted by the respective species abundances. To account for unequal relatedness between species and hence statistical non-independence between taxa (Felsenstein 1985;Harvey 1996), I employed a phylogenetic GLS method (PGLS) when calculating the means of the dependent variables for the diVerent assemblages (Garland et al 2005). The evolutionary relationships among the taxa were derived from published phylogenies (e.g.…”

Section: Methodsmentioning

confidence: 99%

“…Closely related organisms, due to the inheritance of similar traits from a common ancestor, may constitute little more than one replicate, independent observation. If the pattern is driven by closely related taxa, the result may be spurious (Felsenstein 1985;Harvey 1996). Phylogenetic corrections should thus be especially important when studying assemblages that include many related taxa such as the often numerically dominant and relatively diverse mayXy Baetis spp.…”

Section: Variablementioning

confidence: 99%

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Species traits predict assembly of mayfly and stonefly communities along pH gradients

Petrin

2011

Oecologia

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Much recent ecological research has centred on the interrelations between species diversity and ecological processes. In the present study, I show how species traits may aid in comprehending ecology by studying the link between an environmental variable and functional traits. I examined the composition of species traits with a theoretically underpinned relationship to ecological processes along a pH gradient. I focused on body size, reproductive output, life cycle length and feeding habit of mayflies and stoneflies. In mayfly assemblages, I found smaller body size, greater reproductive output, faster life cycles and a larger proportion of gathering collectors and scrapers with increasing pH. In stonefly assemblages, I found smaller body size, greater reproductive output and faster life cycles at sites with a history of long-term natural acidification, but no clear trends in feeding habits and in most traits where acidification is anthropogenic. The results suggest that mayflies and stoneflies exhibit different ecological functions following different ecological strategies. Mayflies follow an opportunistic strategy relative to stoneflies, likely facilitating high rates of ecological processes with respect to the autotrophic resource base at neutral sites. Relative to mayflies, stoneflies follow an equilibrium strategy contributing to ecological functioning in heterotrophic ecosystems and likely maintaining heterotrophic processes despite the erosion of species diversity in response to acidification. The rules governing an ecological community may be more readily revealed by studying the distribution of species traits instead of species diversity; by studying traits, we are likely to improve our understanding of the workings of ecological communities.

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Section: Variablecontrasting

confidence: 45%

Section: Methodsmentioning

confidence: 99%

Section: Variablementioning

confidence: 99%

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Species traits predict assembly of mayfly and stonefly communities along pH gradients

Petrin

2011

Oecologia

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“…Most of the surveyed studies showed positive relationship between taxon diversity and functional diversity (Haybach et al, 2004;Bêche & Resh, 2007;Heino, 2008;Bazzanti et al 2009;Bêche & Statzner, 2009;Vandewalle et al, 2010;Gallardo et al, 2011;Feld et al, 2014), while others revealed a positive and saturating relationship Bêche & Statzner, 2009). Finally, a single paper stated that functional diversity fluctuates fairly independently from taxonomic diversity (Reynaga & Dos Santos, 2013).…”

Section: How Functional Diversity Is Related To Taxonomic Diversity?mentioning

confidence: 97%

“…applied the Shannon diversity index commonly used to quantify taxonomic diversity (Magurran, 2004), to macroinvertebrate groups defined from the traits of taxa (mostly genera). Several forthcoming papers used the Shannon formula for quantifying functional diversity of freshwater macroinvertebrates (Haybach et al, 2004;Devin et al, 2005;Heino, 2005;Bazzanti et al, 2009). In addition to Shannon diversity, Heino (2008) and Göthe et al (2014) considered functional richness and functional evenness.…”

Section: Measuring Functional Diversitymentioning

confidence: 99%

Functional diversity: a review of methodology and current knowledge in freshwater macroinvertebrate research

et al. 2016

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Although several studies have examined the functional diversity of freshwater macroinvertebrates, the variety of methodologies combined with the absence of a synthetic review make our understanding of this field incomplete. Therefore, we reviewed the current methodology for assessing functional diversity in freshwater macroinvertebrate research. Our review showed that most papers quantified functional diversity using biological traits, among which feeding habits were the most common traits probably due to the assumed links between feeding and ecosystem functions. A large number of diversity measures have been applied for quantifying functional diversity of freshwater macroinvertebrate assemblages, among which Rao's quadratic entropy looks like the most frequent. In most papers, functional diversity was positively related to taxon richness, and functional redundancy was a key concept in explaining this correlation. Most studies detected strong influence of the environmental factors as well as human impact on functional diversity. Finally, our review revealed that functional diversity research is biased towards European running waters and is hindered by yet insufficient information on the autecology of macroinvertebrates. Keywords Environmental variables Á Functional redundancy Á Human impact Á Taxonomic resolution Á TraitsElectronic supplementary material The online version of this article

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Taxonomy, metrics or traits? Assessing macroinvertebrate community responses to daily flow peaking in a highly regulated Brazilian river system

et al. 2013

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Damming disrupts lotic continuity, creating a lentic water body upstream of the dam and a lotic stretch downstream that is highly vulnerable to temporal fluctuations in flow and physiochemical quality depending on the operational regime of the dam. Thus, an essential part of any dam operation programme must take into account a typologically suitable environmental flow regime, in order to maintain downstream structure and function. We assessed the seasonal impact of daily flow peaking regimes on the taxonomic composition, metrics and traits of the macroinvertebrate community in the lotic section situated downstream of the Itutinga reservoir on the Rio Grande in the state of Minas Gerais in southeast Brazil. The flow manipulation experiments were carried out in both wet (January) and dry periods (July) of 2010. The samplings were carried out in two hydraulic situations (fixed flow and daily flow peaking). Benthic macroinvertebrates and sediment were collected in three habitat types (backwater, fluvial beach and running water). Water variables were measured only in the fluvial beach habitat. Both water column and sediment variables downstream were heavily influenced by the retention capacity of the reservoir rather than the daily flow peak value. The trait approach was more sensitive than abundance and metrics and could detect the effects of daily flow peaking. The benthic macroinvertebrate communities sampled downstream of the Itutinga reservoir were more influenced by the sediment composition at each of the three studied habitats, than by the tested daily flow peaking. However, given the short timescale of this study, it may be difficult to the influence of these two interrelated factors. Copyright © 2013 John Wiley & Sons, Ltd.

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Use of biological traits for interpreting functional relationships in large rivers

Cited by 22 publications

References 25 publications

Species traits predict assembly of mayfly and stonefly communities along pH gradients

Species traits predict assembly of mayfly and stonefly communities along pH gradients

Functional diversity: a review of methodology and current knowledge in freshwater macroinvertebrate research

Taxonomy, metrics or traits? Assessing macroinvertebrate community responses to daily flow peaking in a highly regulated Brazilian river system

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