Diversity and conservation status of Aegla spp. (Anomura, Aeglidae): an update

Santos, Sandro; Bond‐Buckup, Georgina; Gonçalves, Alberto Senra; Bartholomei-Santos, Marlise Ladvocat; Buckup, Ludwig; Jara, Carlos G.

doi:10.1590/2358-2936e2017011

Cited by 34 publications

(36 citation statements)

References 42 publications

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“…The conservation status for the 30 Aeglidae species occurring within the study area was assessed by Santos et al (). Five CR species, 10 EN species, six VU species, seven LC species, and two DD species were found (Table ).…”

Section: Resultsmentioning

confidence: 99%

“…The greatest concentration of Aegla species is recorded in southern Brazil, reflecting the northern distribution of the Atlantic Forest (Bond‐Buckup & Buckup, ; Santos et al, ; Figures S1–S3). Many impacts threaten aeglids (70% of the 30 species found) and other freshwater organisms within the study area (reviewed in Santos et al, ); in addition, ecoregions showing high PSR also possess high levels of demographic pressure (Table ), which can contribute to river pollution. The existing PA network within the study region poorly covers the freshwater habitats.…”

Section: Discussionmentioning

confidence: 99%

“…According to Holland et al (), several criteria can be used to determine KBAs for freshwater species, one of which is the threat status of the species within a particular area. The conservation status of the aeglid species recorded in the study area has been assessed recently in a global study encompassing all species of the genus Aegla (Santos et al, ). This assessment used the criteria published by the International Union for Conservation of Nature (IUCN, ).…”

Section: Methodsmentioning

confidence: 99%

“…This family comprises only one extant genus, Aegla Leach, 1820, which occurs exclusively in southern South America, where it is widely distributed throughout the main catchments (Bond‐Buckup & Buckup, ). There are more than 80 species identified for the genus Aegla , many of which inhabit headwaters and present a high level of endemism (Moraes et al, ; Santos et al, ; Santos et al, ; Santos, Jara, Bartholomei‐Santos, Pérez‐Losada, & Crandall, ). In addition, aeglids are indicators of good environmental conditions owing to their role in allochthonous material fragmentation (Bücker, Gonçalves, Bond‐Buckup, & Melo, ; Cogo & Santos, ) and their high demand for oxygenated water (Dalosto & Santos, ).…”

Section: Introductionmentioning

confidence: 99%

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Priority areas for conservation within four freshwater ecoregions in South America: A scale perspective based on freshwater crabs (Anomura, Aeglidae)

Gonçalves

Costa

Bond‐Buckup

et al. 2018

Aquatic Conservation

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1. Although freshwater ecosystems contain high biodiversity and provide valuable ecosystem services, they are severely threatened worldwide. Many broad-scale approaches to conserve freshwater environments have been proposed, but as headwaters tend to host higher levels of biodiversity, identifying priority areas for conservation at a local scale is essential.2. An integrative three-step framework is proposed to recognize such areas, using anomuran crabs of the family Aeglidae as biodiversity indicator taxa, within four freshwater ecoregions in South America. First, the knowledge on the distribution of species occurring within the study area was updated and the species conservation status assessed. Second, species distribution modelling was used to identify areas of high richness and endemism. Third, these areas were compared with the existing protected area network, in addition to land-use and urban information, to indicate priority areas for conservation within four freshwater ecoregions (Laguna dos Patos, Upper Uruguay, Lower Uruguay, Tramandaí and Mampituba) studied at a local scale.3. Analysis of the distribution of species of the genus Aegla showed that the present protected area network poorly covers freshwater habitats within the study region.Three priority areas for conservation were identified, with high levels of endemism and richness of aeglid species. These areas are mainly located close to current protected areas, and we suggest, therefore, that the enlargement of some protected areas, through the establishment of corridors, would better protect several species with distributions restricted to headwaters, such as macroinvertebrates and fishes, some of which are threatened with extinction.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Priority areas for conservation within four freshwater ecoregions in South America: A scale perspective based on freshwater crabs (Anomura, Aeglidae)

Gonçalves

Costa

Bond‐Buckup

et al. 2018

Aquatic Conservation

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“…Aegla is at great risk, and it is the most severely threatened genus among South American freshwater decapods (Bond‐Buckup et al, ; Jara et al, ; Magris et al, ). The conservation status of 70% of 82 known species of Aegla has been assessed in one of the following three threat categories given by the IUCN (, ): Critically Endangered (CR), Endangered (EN) or Vulnerable (VU) (Santos et al, ). These authors suggested that urgent action is needed to protect aeglids, such as the frequent monitoring of the species to obtain information on possible population fluctuation or decline.…”

Section: Introductionmentioning

confidence: 99%

Selecting and ranking areas for conservation of Aegla (Crustacea: Decapoda: Anomura) in southern South America integrating biogeography, phylogeny and assessments of extinction risk

Tumini

Giri

Williner

et al. 2019

Aquatic Conservation

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1. The rapid degradation of freshwater habitats in southern South America may cause the extinction of the endemic species of Aegla, as well as other freshwater species and components of riverside environments related to them. Information on the distribution of species and their conservation status is essential for developing conservation strategies.2. The updated distribution of Aegla in its southernmost distribution was analysed in order to prioritize freshwater ecoregions, applying biogeographical, phylogenetic and conservation status and complementarity approaches. 3. The distributions of the species of Aegla were delineated on maps and plotted against freshwater ecoregions. A data matrix of areas versus species was constructed and a taxon-area cladogram was created. Ecoregions were ranked, based on their species richness and using a complementarity criterion, to create a list of those considered important for conservation. The conservation status of Aegla species was assessed on the basis of the categories and criteria of the International Union for Conservation of Nature (IUCN) to produce a decreasing order of the risk of species extinction. These assessments were combined to define a consensus ranking of the priority areas for conservation. 4. The areas of maximum species richness and endemicity, and consequently highest priority of conservation, were the Lower Parana and Patagonia ecoregions. The Cuyan Desaguadero and Mar Chiquita Salinas Grandes ecoregions were the areas of second priority, and the Chaco and Lower Uruguay ecoregions were the areas with the third priority for conservation. Ten out of the 20 species analysed fall within the threat categories of the IUCN. Sixty per cent of the species of Aegla analysed have at least one population contained in protected areas.5. The results obtained may be used to design strategies for implementing conservation policies on freshwater species, generate biogeographical atlases and contribute to selecting Ramsar sites.

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Osmo-ionic regulation and carbonic anhydrase, Na+/K+-ATPase and V-H+-ATPase activities in gills of the ancient freshwater crustacean Aegla schmitti (Anomura) exposed to high salinities

Bozza

Freire

Prodocimo

2019

Comparative Biochemistry and Physiology Part A: Molecular &

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Diversity and conservation status of Aegla spp. (Anomura, Aeglidae): an update

Cited by 34 publications

References 42 publications

Priority areas for conservation within four freshwater ecoregions in South America: A scale perspective based on freshwater crabs (Anomura, Aeglidae)

Priority areas for conservation within four freshwater ecoregions in South America: A scale perspective based on freshwater crabs (Anomura, Aeglidae)

Selecting and ranking areas for conservation of Aegla (Crustacea: Decapoda: Anomura) in southern South America integrating biogeography, phylogeny and assessments of extinction risk

Osmo-ionic regulation and carbonic anhydrase, Na+/K+-ATPase and V-H+-ATPase activities in gills of the ancient freshwater crustacean Aegla schmitti (Anomura) exposed to high salinities

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