Article 17 web tool

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: El tamaño poblacional adicional expresado en localidades en 6.4. equivale a cada una de las poblaciones detectadas.
No es posible ofrecer estimaciones precisas. Solamente se aportan datos de población mínima. No hay datos que permitan su conversión en número de individuos. ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo: There are few studies on this species that allow us to conclude on the requirements for the occurrence of the species, namely physicochemical characteristics of watercourses and associated vegetation, so it is not possible to assess the quality of the habitat occupied by the species. ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: The distribution map presented took into consideration the data collected for the period 2013-2018, as well as part of the squares presented in the previous report for which no recent observations were collected but considered as areas of current occurrence of the species. The data come from localized works and occasional personal communications, and there is no systematic prospecting of the species. Only in mid-2018, as part of the Red List of Invertebrates project, systematic exploration work began, with particular focus on classified areas, but the results will only be reflected in the next report.
The project "Red List for Terrestrial and Freshwater Invertebrate groups in mainland Portugal" started in mid-2018. This operation will be carried out over 3 years, covering the entire national territory of the continent, with particular focus on Sites of Community Importance (SCI)and on terrestrial and freshwater invertebrate species belonging to the annexes of the Habitats Directive but the results will only be reflected in the next report.
The main objectives of this project are:
(a) assess the conservation status, according to IUCN criteria, of species for some terrestrial and freshwater invertebrate taxonomic groups in mainland Portugal;
(b) to fill knowledge gaps in terrestrial and freshwater invertebrate species protected by the Habitats Directive to enable conservation status to be assessed under that Directive;
c) to elaborate and publish the Red List of Terrestrial and Freshwater Invertebrate groups of mainland Portugal in physical and digital support;

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: There has been a slight decline of the number of reproduction sites and of the emergences on those sites (from the number of exuviae collected) ||
->HabInfo: Reproduction habitats suffered a slight decline due to dying and cutting of old trees and their degradation due to beaver activity ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Methodik zur Ermittlung der Populationsgröße in EU-Einheit: Verschneidung der Vorkommenspunkt (Distribution) mit grids1x1 und Habitatmaskierung mit CorineLandCover-Klassen ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: The estimate of population size is based on an extrapolation method or expert based judgement, using when appropriate the techniques suggested by the ETC. Such methodologies may have a degree of uncertainty that cannot be quantified; for this reason, the values included in the report are to be considered approximate estimates. ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: The range is based on field observations in the frame of a dedicated monitoring.
The species was observed in three 10x10 grid cells during the period 2013-2018, but disappeared from two of them since 2016. The range is therefore evaluated as bad and decreasing.
Range reported in 2013 (70 km²) was calculated using grids5x5. ||
->Population: The species is targeted by a dedicated monitoring. Yearly counts of exuviae highlighted a decrease since 2010, and the disappearence of the species in 2016. The species was however observed in two other 1x1 grid cells.
There is a change in reported unit (i in 2013 and grids1x1 in 2019). ||
->HabInfo: The area and quality of occupied habitat is small and considered as not sufficient for long-term survival.
The area and the quality of the occupied habitat decreased based on expert opinion from field observations. Other sites have been prospected and considered as suitable, although no observation of the species.
Further investigations are however required to better understand habitat requirements of the species. ||
->Future: There is a lack of information on the reason of the decline in its known range. Elswhere, the habitat is considered as unsuitable. ||
->Conclusion: The species is known from a section of a bordering river (Our). The species is recently declining for not fully explained reasons, but suspected due to the exploitation of hydropower infrastructure. The availability of other suitable habitat is very low. ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: El tamaño poblacional adicional expresado en localidades en 6.4. equivale a cada una de las poblaciones detectadas.
No es posible ofrecer estimaciones precisas. Solamente se aportan datos de población mínima. No hay datos que permitan su conversión en número de individuos. ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: The estimate of population size is based on an extrapolation method or expert based judgement, using when appropriate the techniques suggested by the ETC. Such methodologies may have a degree of uncertainty that cannot be quantified; for this reason, the values included in the report are to be considered approximate estimates. ||
->HabInfo: N/A ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Oxygastra curtisii"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: N/A ||
->HabInfo:
There are few studies on this species that allow us to conclude on the requirements for the occurrence of the species, namely physicochemical characteristics of watercourses and associated vegetation, so it is not possible to assess the quality of the habitat occupied by the species. But the construction of some dams in the area of occurrence of the species (Sabor, Tâmega) is certainly responsible for the reduction of available habitat. ||
->Future: N/A ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: The distribution map presented took into consideration the data collected for the period 2013-2018, as well as part of the squares presented in the previous report for which no recent observations were collected but considered as areas of current occurrence of the species. The data come from localized works and occasional personal communications, and there is no systematic prospecting of the species. Only in mid-2018, as part of the Red List of Invertebrates project, systematic exploration work began, with particular focus on classified areas, but the results will only be reflected in the next report.

The project "Red List for Terrestrial and Freshwater Invertebrate groups in mainland Portugal" started in mid-2018. This operation will be carried out over 3 years, covering the entire national territory of the continent, with particular focus on Sites of Community Importance (SCI)and on terrestrial and freshwater invertebrate species belonging to the annexes of the Habitats Directive but the results will only be reflected in the next report.
The main objectives of this project are:
(a) assess the conservation status, according to IUCN criteria, of species for some terrestrial and freshwater invertebrate taxonomic groups in mainland Portugal;
(b) to fill knowledge gaps in terrestrial and freshwater invertebrate species protected by the Habitats Directive to enable conservation status to be assessed under that Directive;
c) to elaborate and publish the Red List of Terrestrial and Freshwater Invertebrate groups of mainland Portugal in physical and digital support;
d) create a websig platform for storing information, publishing and disseminating results.
This operation will be carried out over 3 years, covering the entire national territory of the continent, with particular focus on Sites of Community Importance (SCI)and on terrestrial and freshwater invertebrate species belonging to the annexes of the Habitats Directive but the The results will only be reflected in the next report.

Open Original Report