2011
DOI: 10.1590/s1984-46702011000500001
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Abstract: The first record of Argyrodiaptomus bergi (Richard, 1897) from a small roadside pool at high altitude in the southern region of Brazil is presented. This is the ninth record of this species in South America (previously known from Argentina and Uruguay) since its original description, and a new occurrence after 36 years, extending its known distribution to the northeast. The environments where this species was found differ sharply, and possible explanations include the loss of habitat, high species selectivity … Show more

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Cited by 7 publications
(7 citation statements)
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“…We consider that such inferences should be made with caution. In most cases there is little information on the population dynamics of the species and we found species such as Odontodiaptomus thomseni and Argyrodiaptomus bergi (Perbiche-Neves et al 2011, 2012) which had not been seen for several decades. Our understanding of the relationships between diaptomids and the various limnological parameters and trophic status of water bodies is not very robust and is made less secure given that these species inhabit artificial reservoirs but were originally inhabitants of lakes, ponds, and rivers.…”
Section: Discussionmentioning
confidence: 78%
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“…We consider that such inferences should be made with caution. In most cases there is little information on the population dynamics of the species and we found species such as Odontodiaptomus thomseni and Argyrodiaptomus bergi (Perbiche-Neves et al 2011, 2012) which had not been seen for several decades. Our understanding of the relationships between diaptomids and the various limnological parameters and trophic status of water bodies is not very robust and is made less secure given that these species inhabit artificial reservoirs but were originally inhabitants of lakes, ponds, and rivers.…”
Section: Discussionmentioning
confidence: 78%
“…During the counting of samples for ecological studies, if only low numbers of individuals (up to 200 per sample) are identified this probably decreases the chances of finding such rare taxa. In small, more closed habitats and in the absence of visual predators, the abundance of Argyrodiaptomus can be very high (Perbiche-Neves et al 2011). Argyrodiaptomus furcatus and Argyrodiaptomus azevedoi occurred in reservoirs that were oligotrophic as well as in eutrophic habitats.…”
Section: Discussionmentioning
confidence: 99%
“…Species that were once regarded as absent from or rare in the La Plata basin have recently been found by Perbiche‐Neves et al . () and Perbiche‐Neves et al . (), whereas other species have only been described by a few individuals because of their low population densities.…”
Section: Discussionmentioning
confidence: 90%
“…Although temperature was correlated with the occurrence of northern species, the amplitude of the temperature along the basin (about 13°C) was correlated with the southern group by redundancy analysis; the species in this region are characteristically polythermic as reported for Argentinean species (Brandorff ; José de Paggi & Paggi ) and species in high‐altitude water pools in the southern region of Brazil (Perbiche‐Neves et al . ).…”
Section: Discussionmentioning
confidence: 97%
“…Although the nature of these small water bodies contrasts with the new locality reported here, this is the kind of environment sampled by BREHM (1933). Sampling such small habitats is important as PERBICHE-NEVES et al (2011) demonstrated when they reported high abundance of Argyrodiaptomus bergi (Richard, 1898) in a pool at high altitude in the state of Santa Catarina, southern Brazil. Prior to this record, this copepod had not been found for 36 years.…”
Section: Discussionmentioning
confidence: 99%