Low cross-taxon congruence among aquatic organisms in artificial tropical ponds: implications for biomonitoring
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2019
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The use of biodiversity surrogates is often suggested to increase the cost-effectiveness of
biomonitoring programs, as this demands less time and taxonomic expertise. In addition, the detection of
multi-taxon associations is a first step toward a better understanding of how organisms interact with each
other. Such a multi-taxon association is termed a congruence, and can be detected through measuring the
similarity in the distributional patterns shown by different biological groups. To assess the ability of
different taxa to serve as surrogates for others, we carried out a Procrustes analysis on the beta diversity
patterns of seven biological groups (aquatic birds, Amphibians, Macrophytes, Coleoptera, Odonata,
Heteroptera and phytoplankton) in 35 ponds of the Cerrado biome. We found that: (i) the values of
congruence in the studied ponds were weak; (ii) among all the biological groups compared, the highest
congruence was found between amphibians and macrophytes; (iii) amphibians were congruent with the
Coleoptera, Heteroptera, and macrophytes; (iv) the different taxa studied had different responses to
environmental conditions; and (v) although they showed relatively weak congruence with the other taxa in
each pond environment, amphibian communities were the most strongly influenced by environment
variables. Almost all the communities observed in these systems showed unique pattern and thus should be
studied and monitored in their entirety.
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Waterbodies, Biomonitoring, Aquatic communities, Freshwater biodiversity, Biodiversity surrogates
Citação
CARNEIRO, Fernanda Melo et al. Low cross-taxon congruence among aquatic organisms in artificial tropical ponds: implications for biomonitoring. Annales de Limnologie: international journal of limnology, Les Ullis, v. 19, n. 55, p. 21, 2019. DOI: 10.1051/limn/2019022 . Disponível em: https://www.limnology-journal.org/articles/limn/pdf/2019/01/limn190025.pdf. Acesso em: 10 fev. 2023.