Article 17 web tool

Scientific name used in original MS report if different than recommended: "Alytes obstetricans"
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: "Alytes obstetricans"
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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Trend estimation by list-length analysis reveals an highly significant -39,7% decline of the species observation probability when visiting favourable grids within 24 years (-1,6% per year); the best model exclude a distinct and significant trend between atlantic and continental part of the territory ||
->HabInfo: Habitat destruction has been recently compensated by the creation of new ponds in the framework of Life projects, nature reserve management or agri-environmental measures in Wallonia. More than half of the populations is located outside SCI/SAC in Flanders. There, but also elsewhere, the species is experiencing high pressures, ranging from the mere destruction of habitat to a gradual deterioration by pollution, predation of eggs and larvae by fish, decreasing connectivity among reproduction ponds and natural succession in the absence of appropriate management. ||
->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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Methodik zur Ermittlung der Populationsgröße in EU-Einheit: Anzahl Vorkommen = Anzahl grids1x1 ||
->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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Esfuerzos de seguimiento y monitoreo de poblaciones entre 1975 y 2007 sugieren un declive poblacional en algunas áreas de Galicia (Galán, 2006b, 2007, 2008). En las zonas al sur de su distribución la especie está sufriendo un declive generalizado debido a las afecciones del hábitat resultado de la introducción de especies invasoras, la contaminación o la disminución de la calidad de las aguas (Bosch, 2014). ||
->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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: Un déclin est bien documenté en particulier au nord de l'Aquitaine. ||
->Population: N/A ||
->HabInfo: N/A ||
->Future: Perspectives mauvaises dans la moitié nord de la zone biogéographique atlantique principalement ||
->Conclusion: N/A ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: Vorige rapportage was de range 600, toen is aangegeven dat in de referentie-periode het areaal (Favourable Reference Range) veel groter was (vrijwel geheel Zuid-Limburg).
In voormalig verspreidingsgebied zijn nu vroedmeesterpadden geherintroduceerd, waardoor de range iets vergroot is. De huidige range is inmiddels gestegen tot op de FRR.
De toekomst zal moet uitwijzen in hoeverre ze kansvol en structureel zijn en de uitgezette populaties het op eigen kracht verder kunnen bolwerken. ||
->Population: De populatiegrootte is nu geschat in 1*1 km, vorige rapportage was gebaseerd op aantalsschattingen.
De populatietrend is berekend door het CBS op basis van aantalsmonitoring uit het NEM.
Voor deze soort worden in alle populaties de aantallen larven geteld via aantalsmonitoring (exacte aantallen larven) als maat voor de populatiegrootte. ||
->HabInfo: Benodigde maatregelen: poelenaanleg en vergroten van dynamiek in het landschap.
De populaties zijn klein en daarmee erg kwetsbaar. Het optimum voor de soort ligt in ruderaal terrein dat net uit productie is genomen of terreinen waarin continu gerommeld wordt. De nieuw aangelegde habitats functioneren weliswaar, maar het zijn vooral poelen met als landhabitat/schuilplaats een vuurstenen muur eromheen. Dat is qua oppervlakte nog steeds erg beperkt waardoor de populaties klein zijn en klein blijven. Binnen de huidige range is de kwaliteit niet optimaal.
Het optimale habitat voor de vroedmeesterpad zijn mergelgroeves die net uit productie zijn, daar explodeert de populatie van deze soort en gaat het om honderden of meer dan duizend volwassen exemplaren. Die aantallen worden echter maar zeer zelden gehaald, we hebben dit verschijnsel voorheen gezien in de Meertensgroeve (jaren 80) en meer recent ook in de ENCI groeve.
Zodra het beheer en stevige ingrepen echter wegvallen wordt de soort afhankelijk van kleine , vervangende habitats die continu onderhoud nodig hebben. Ook deze functioneren vooral in de beginjaren maar het blijft steeds wat tuinieren en kwakkelen op relatief lage aantallen dieren. De meer grootschalige dynamiek waarop de soort floreert is in de praktijk dan ook nauwelijks te handhaven. ||
->Future: Range is voorlopig weer op orde.
Populatie: veelal kleine, versnipperde leefgebieden.
Habitats: Habitatkwaliteit op de langere termijn is lastig te garanderen, de soort is erg afhankelijk van nog in bedrijf zijnde of net uit productie genomen groeves (zie ontwikkelingen in de ENCI-groeve, in het verleden een zelfde ontwikkeling in Meertensgroeve) Daar worden in korte tijd grote populaties opgebouwd met een uitstralend effect naar ander leefgebied. ||
->Conclusion: Vorige rapportage kwam uit op U2:
-in tegenstelling tot de vorige rapportage is nu de range wel als FV beoordeeld maar dat heeft te maken met herintroducties die zich nog op langere termijn moeten waarmaken
-overige parameters zijn toen als unfavourable beoordeeld, population is door de herintroductie wel (tijdelijk?) toegenomen, evenals meer aandacht voor habitatverbetering.

Population: huidige populatie (op basis van 63 km hokken) >25% onder FRV dus unfavourable

Habitat: Area of habitat is clearly not sufficiently large to ensure the long-term survival of the species : unfavourable

11.6 uitleggen : nog niet erg duurzaam, maar gaat wel vooruit t.o.v. vorige rapportage ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Alytes obstetricans"
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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Trend estimation by list-length analysis reveals an highly significant -39,7% decline of the species observation probability when visiting favourable grids within 24 years (-1,6% per year); the best model exclude a distinct and significant trend between atlantic and continental part of the territory ||
->HabInfo: Habitat destruction has been recently compensated by the creation of many new ponds in the framework of Life projects, nature reserve management or agri-environmental measures ||
->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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Methodik zur Ermittlung der Populationsgröße in EU-Einheit: Anzahl Vorkommen = Anzahl grids1x1 ||
->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: "Alytes obstetricans"
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: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: Area and short-term trend based on species distribution models for two periods (2007-2012 and 2013-2018) and based on casual and standardised species observations. The trend of 3% is due to the difference of a single 10x10 km including a small part of the country.
Change in reported value is due to the use of a different resolution (grids5x5 in 2013 and grids10x10 in 2019). ||
->Population: Population size: based on species distribution modelling at 200m resolution with presence only data from the period 2013-2018. This model is based on improved knowledge as new sites have been surveyed in comparison to the previous period.

Short-term trend: based on the comparison of the naïve occupancy of 43 sites surveyed both in 2010-2012 and in 2016-2018 in the frame of a dedicated monitoring. The species was present in 22 grids in 2010-2012 and in 18 grids in 2016-2018. Based on expert opinion, the number of individuals by site is also decreasing. The decline can therefore be considered as a "genuine change".
A comparison of observations between 1997 et 2015 suggests a decline of 10% (Proess et al 2016).

Change in reported values is due to the use of a different resolution (grids5x5 in 2013 and grids1x1 in 2019). ||
->HabInfo: In the frame of the national monitoring, the species has been targeted by at least one survey in 111 sites considered as suitable. The species has been detected in 31% which is considered as moderate. Observers describe a decrease in habitat quality from the sample of sites regularly surveyed (every 3 years). At a larger scale, the decrease of habitat quality is confirmed by expert's opinion. ||
->Future: The species shows a continuous decline in distribution. Based on expert's opinion, the population is especially declining in terms of number of individuals. There is a growing concern related to the impact of parasites, and the deterioration of the terrestrial habitat. ||
->Conclusion: Historically a rather common and widespread species which underwent a long-term decline and continues on a significant ongoing short-term decline in terms of occupied grids 1x1 and mostly in terms of individuals ; although reproduction habitats might be lacking, following experts’ observation, problems are supposed to lie mostly in the degradation of terrestrial habitats. ||
->JustificationThreshold: N/A ||
->Other: N/A

Open Original Report  

Scientific name used in original MS report if different than recommended: "Alytes obstetricans"
Information provided in the field 2.8.2: Reported additionnal information: ||
->Range: N/A ||
->Population: Se han registrado declives poblacionales y episodios de extinción en numerosas localidades repartidas por toda la geografía peninsular. Muestreos realizados en Galicia de 1975 a 2007 sugieren un posible declive de la especie. En zonas de montaña del Sistema Central también se han registrado graves descensos poblacionales debido a varias causas como la introducción de especies piscícolas invasoras, o el hongo quitridio (Bosch, 2014). En Portugal también se han identificado declives muy severos asociados al hongo quitridio (Rosa et al., 2013). ||
->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: "Alytes obstetricans"
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: "Alytes obstetricans"
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