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Browsing DCEA - Outros documentos / Other documents by Author "Cardoso, Pedro"
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- Acorigone zebraneusPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Acorigone zebraneus is a single-island endemic money spider species restricted to São Jorge island in Azores, Portugal (Borges et al. 2010). It is a rare species, with a restricted Extent of Occurrence (EOO) (4- 20 km²) and Area of Occupancy (AOO) (4-20 km²), but these values are suspected to be at the upper end of these estimates. There is a continuing decline in the EOO, AOO, extent and quality of habitat as well as the number of mature individuals as a result of the invasions of non-native plants and trampling of soil by dairy cows. The species occurs in a single patch of native forest at Topo Nature Reserve. In the past, the species has probably strongly declined due to changes in habitat size. The only patch of native vegetation where it occurs in under severe threat due to invasive plants and dairy-cattle disturbance. Therefore, we suggest as future measures of conservation: (1) a long-term monitoring plan of the species; (2) control of invasive species, and (3) restrict the access of cattle. The species is assessed as Critically Endangered (CR).
- Canariphantes junipericolaPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Canariphantes junipericola is a single-island endemic species restricted to Flores (Azores, Portugal) (Crespo et al. 2014). It has a very small Extent of Occurrence (EOO = 4-12 km²) and Area of Occupancy (AOO = 4-12 km²), but the value is assumed to be at the upper end of this estimate. The species is rare and only known from a single subpopulation in the Natural Forest Reserve of Caldeiras Funda e Rasa. The surrounding area is highly invaded by alien plants. In the past, the species has probably strongly declined due to changes in habitat size and quality. Currently, invasive plants are changing some of the areas and decreasing the quality of the habitat. Based on Ferreira et al. (2016) the habitat will further decline as a consequence of climate change. Therefore, we suggest as future measures of conservation: (1) regular monitoring of the species; and (2) control of invasive plant species. Based upon the small geographic range of the species and continuing decline of its habitat area and quality, it is assessed as Critically Endangered.
- Gibbaranea occidentalisPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Gibbaranea occidentalis is an orb-weaver spider species occurring in eight islands of the Azorean archipelago (Azores, Portugal). It has a relatively large Extent of Occurrence (EOO = 42,175 km²) and relatively small Area of Occupancy (AOO = 404-1,940 km²). This species occurs mainly in Azorean native forest, but also in shrubland, exotic forest and other disturbed habitats, although these contain marginal subpopulations mostly dominated by juvenile stages. It is abundant in the canopies of endemic trees but can also be found on the forest floor and on exotic trees. It favours humid and sheltered microhabitats being a nocturnal species. Based upon the fragmentation of subpopulations and inferred decline in EOO, AOO, decline in the quality and structure of habitat, this species is assessed as Near Threatened (NT).
- Lasaeola oceanicaPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Lasaeola oceanica is a spider species occurring on all the nine islands of the Azorean archipelago (Azores, Portugal) (Borges et al. 2010). It has a large Extent of Occurrence (EOO = 43,454-44,172 km²) and a relatively large Area of Occupancy (AOO = 244-1,356 km²). The species is abundant in both endemic (e.g. Juniperus brevifolia, Ilex perado subsp. azorica) and exotic plants (Cryptomeria japonica and Pittosporum undulatum). The species is particularly abundant from low to mid elevations. Based upon the large Extent of Occurrence, the good adaptation to human modified habitats, and few threats, the species is assessed as Least Concern (LC).
- Pardosa acorensisPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Pardosa acorensis is a wolf spider species occurring on all nine islands of the Azorean archipelago (Azores, Portugal) (Borges et al. 2010). It has a large Extent of Occurrence (EOO = 43,265 km²) and a relatively large Area of Occupancy (AOO = 636-2,228 km²). This species is the most widespread Azorean endemic spider and is particularly abundant from mid to high elevations in bogs, semi-natural pastures and a rare habitat at high elevations, the natural grasslands. The species is also able to occur in intensively managed pastures for dairy cattle. Based upon the large Extent of Occurrence, the good adaptation to human modified habitats, and few threats the species is assessed as Least Concern (LC).
- Porrhomma borgesiPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Porrhomma borgesi is an endemic money spider species occurring on three islands of the Azorean archipelago: Pico, Terceira and S. Miguel (Azores, Portugal) (Borges et al. 2010). It has a small Extent of Occurrence (EOO = ca. 8,312-8,500 km²) and a very small area of occupancy (AOO = 72-124 km²). The species is only abundant in very pristine sites (e.g. sites with a high habitat quality index sensu Gaspar et al. 2011) and is rare in most sites. Currently, invasive plants (Hedychium gardnerianum and Pittosporum undulatum) are impacting some of the areas and decreasing the quality of the habitat. Based on Ferreira et al. (2016) the habitat will further decline as a consequence of climate change. Therefore, we suggest as future measures of conservation: (1) regular monitoring of the species; and (2) control of invasive species namely Hedychium gardnerianum. Based upon the inferred decline in AOO, the decline in the quality and structure of habitat in some islands and number of locations the species is assessed as Vulnerable (VU).
- Savigniorrhipis topographicusPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Savigniorrhipis topographicus is a single-island endemic money spider species restricted to São Jorge island in Azores, Portugal (Crespo et al. 2013). It is a rare species, with a restricted Extent of Occurrence (EOO) (4-20 km² ) and Area of Occupancy (AOO) (4-20 km²), although it is likely towards the higher end of this estimate. In the past, the species has probably strongly declined due to changes in habitat size, and there is a continuing decline in the EOO, AOO, extent and quality of habitat as well as the number of mature individuals as a result of the invasions of non-native plants and trampling of soil by dairy cows. The species occurs in a single patch of native forest (at Topo Nature Reserve), where it is under severe threat. Therefore, we suggest as future measures of conservation: (1) a long-term monitoring plan of the species; (2) control of invasive species, and (3) restrictions to the access of cattle to this area. The species is assessed as Critically Endangered (CR).
- Typhochrestus acoreensisPublication . Borges, Paulo A. V.; Cardoso, PedroJUSTIFICATION: Typhochrestus acoreensis is a single-island endemic species, restricted to Terceira Island (Azores, Portugal) (Borges et al. 2010). It is a rare species, with a restricted Extent of Occurrence (EOO) (4-24 km² ) and Area of Occupancy (AOO) (4-24 km²), but it is likely to be at the upper end of this estimate. The species occurs in a single patch of native forest (at Biscoito da Ferraria Reserve). There is a continuing decline in the EOO, AOO, extent and quality of habitat as well as the number of mature individuals as a result of the invasions of non-native plants and the impact of Cryptomeria japonica plantations, with the destruction of the main original site. Therefore, we suggest as future measures of conservation: (1) a long-term monitoring plan of the species; (2) control of invasive species, and (3) avoid the expansion of Cryptomeria japonica plantations in the Pico Alto area. The species is assessed as Critically Endangered (CR).
- Updated Checklist of Arthropods from Azores (Portugal)Publication . Borges, Paulo A. V.; Lamelas-López, Lucas; Andrade, Rui; Lhoumeau, Sébastien; Vieira, Virgilio; Soares, António O.; Borges, Isabel; Boieiro, Mário; Cardoso, Pedro; Crespo, Luís C.; Karsholt, Ole; Assing, Volker; Schülke, Michael; Serrano, Artur R. M.; Quartau, José A.The data we present consists in an updated checklist of the Azorean arthropods. The checklist compile known records based on published literature, unpublished data, and new records at archipelago and island levels. This publication represents the most recent information about distribution of introduced, native and endemic arthropods in the Azores archipelago. Currently the total number of terrestrial arthropod taxa (species and subspecies) in the Azores is estimated of about 2417 belonging to 14 classes, 53 orders, 438 families, 1554 genera and 2397 species and 149 individual subspecies. The most diverse orders of Azorean arthropods are: Coleoptera (585 taxa), Diptera (422 taxa), Hemiptera (338 taxa), Hymenoptera (162 taxa), Lepidoptera (159 taxa) and Araneae (132 taxa). A total of 275 endemic taxa are currently known (231 species and 44 subspecies), belonging to 8 classes and 22 orders. São Miguel, Terceira and Pico are the islands with higher number of endemic species and subspecies. Compared to the other nearest Macaronesian archipelagos (Madeira and Canaries), the Azorean arthropod fauna is characterized by a lower percentage of endemism and a high proportion of exotic introduced species.