Ex-situ cultivation of Isoetes cangae and Isoetes serracarajensis (Isoetaceae) two endemic species from Brazilian Amazon

Db, Zandonadi; Rl, Martins; La, dos Santos Prado; Hm, Duarte; Mp, Santos; Calderón, Emiliano Nicolas; Aca, Fernandes; Qs, Santos; Fjg, Nunes; Lcf, Ribeiro; Tn, Fernandes; Castilho, Alexandre; F, de Assis Esteves

doi:10.1101/861351

Cited by 2 publications

(1 citation statement)

References 32 publications

(48 reference statements)

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“…Six edaphic endemic species are so far only found in the canga vegetation of the FLONA de Carajás Salino & Stützel (Isoetaceae). Therefore the concept of NNL of species is not met by the creation of the PNCF, and their survival is being pursued by VALE through other projects involving these species within the area of the FLONA de Carajás (Babiychuk et al 2017, Zandonadi et al 2019, Guimarães et al 2023. Examples are the ex-situ cultivation of Isoetes cangae and I. serracarajensis (Zandonadi et al 2019) and investigations to support ex-situ cultivation of other endemic species (e.g.…”

Section: Restricted Species and Endemismmentioning

confidence: 99%

Floristic data to support conservation in the Amazonian canga

Silva,

Lovo,

Fonseca-da-Silva

et al. 2023

Biota Neotrop.

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Canga is an environment of great natural and economic value because it harbours a considerable number of endemic species on a substrate that is rich in iron ore. In the Amazon, this open vegetation type grows on top of isolated outcrops in a dense forest matrix found in the Carajás region, in southeastern Pará. Of these outcrops, the Parque Nacional dos Campos Ferruginosos (PNCF) is the only area of Amazonian canga with a strict protection status. Therefore, industrial activity in the region needs to implement mitigation actions to ensure species and habitat conservation. The objective of this study is to complement and review the floristic list of this recently created protected area, enabling us to compare the floristic similarity between it and other 14 Amazonian canga outcrops found outside the conservation units of full protection in the region. This data provides a basis to understand the floristic and phylogenetic complementarity of those patches to support conservation action. For this, six field trips were carried out in the Serra da Bocaina and two in the Serra do Tarzan, respectively, in order to increase the sampling efforts in PNCF and to obtain a more comprehensive plant list. Floristic composition was investigated using multivariate analyses (non-metric multidimensional scaling and unweighted pair group method with arithmetic mean) and phylogenetic structure across studied areas. We added 159 species to the floristic list of the PNCF and the results of the analyses showed that all 16 areas (n.b. PNCF comprises two of these sites) have an overall floristic similarity of 42%, with the least similar areas at 35% and the most similar at 50%. The different micro-habitats found in each study site highlight the high beta diversity of the Amazonian canga sites, making each area unique. Therefore, even if the Parque Nacional dos Campos Ferruginosos does not harbour all the species found in the other Amazonian canga sites, it is strategic for the conservation of the vegetation on ferruginous outcrops in the Amazon, protecting its biodiversity, different habitats, and associated ecosystem services.

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Section: Restricted Species and Endemismmentioning

confidence: 99%

Floristic data to support conservation in the Amazonian canga

Silva,

Lovo,

Fonseca-da-Silva

et al. 2023

Biota Neotrop.

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Mainstreaming Flora Conservation Strategies into the Mitigation Hierarchy to Strengthen Environmental Impact Assessment

Fernandes

Santos

Gontijo³

et al. 2022

Environmental Management

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The application of the mitigation hierarchy (MH) to mining projects is challenging in situations of locational overlap between endemic flora and mineral deposits. We review flora surveys conducted in connection with the environmental impact assessment of several iron ore mining projects in an area of high degree of endemism in Eastern Amazon to discuss the practical implications of anticipating conservation strategies. Desktop studies and secondary data review were conducted to guide field searches to determine the distribution of endemic flora, resulting in 45 out of 46 endemic plant species having their known distribution extended to new areas. A framework for positioning flora conservation strategies in the MH is presented. Specific habitat requirements and scarce knowledge about endangered and endemic flora species are a conservation obstacle, since essential information to define species conservation strategies may be lacking. We show that anticipating conservation strategies can minimize time-lag uncertainties related to restoration success and biodiversity offsets. The more effort is placed in the preventative steps of the MH, the smaller the time-lag between impact (biodiversity losses) and conservation outcomes (biodiversity gains), decreasing uncertainties and reducing risks to biodiversity.

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Ex-situ cultivation of Isoetes cangae and Isoetes serracarajensis (Isoetaceae) two endemic species from Brazilian Amazon

Cited by 2 publications

References 32 publications

Floristic data to support conservation in the Amazonian canga

Floristic data to support conservation in the Amazonian canga

Mainstreaming Flora Conservation Strategies into the Mitigation Hierarchy to Strengthen Environmental Impact Assessment

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