|Population:||The following populations are known for subsp. obliqua (Delipetrou and Kalogeropoulos 2015, in prep.):|
The current total population size is certainly lower than 10,000 individuals. Most of the subpopulations include 100-250 individuals and this number is considered lower than the minimum viable population of 250 individuals. Thus > 50% of the total area of occupancy of the plant includes small isolated patches with a small number of plants and the population can be considered as severely fragmented.
- Parnitha Mt. (5 locations): Paliomilesi site (100 individuals), Mola Plateau (no data), Beletsi Peak (at least 350 individuals), Strongyli Peak (250 individuals), Dekeleia (no data).
- Penteli Mt. (4 locations): Petroti (no data), Agios Petros (c. 100 individuals), Mikro Agriliki (no data), close to Rapentosa (c.100 individuals). There may be more locations, most probably with less than 100 individuals at each.
- Schinias-Marathonas area (4 locations, 2-3 subpopulations): Kynosoura Peninsula (c.3,000 individuals and the largest subpopulation, but thee population fluctuates depending on meteorological conditions), Drakonera area (50-100 individuals), Agia Marina area (200-250 individuals), Grammatiko area (50-100 individuals). The population at Kynosoura Peninsula is currently thriving and is secure (I. Bazos pers. comm. 2018).
- Tourkovounia Hill (3 locations, 1 subpopulation): habitation area G. Papandreou (200 individuals in 2007 but only 70 individuals in 204), Paleo Psychiko area (200 individuals before 1980, six isolated individuals after 2000, 15 individuals in 2014), Filothei area (50 individuals in 2014). The subspecies was described from the area of Tourkovounia Hill in the 19th century at a locality where it is now extinct due to the expansion of urban settlements. This indicates that the subspecies had been much more widespread in Attiki in areas now urbanised.
- Evvoia - Octhonia Mt (1 location, 1 subpopulation): c.3,000 individuals in 2014 (but some of them are morphologically close to F. obliqua subsp. tuntasia).
- Evvoia - Olympos Mt (1 location, 1 subpopulation): 16 individuals in 2014, a large part of the area is occupied by antennae.
- S Evvoia (6 locations, 1 subpopulation): Argyro (150-300 individuals), Prasino (80-120 individuals), Zarakes (150-200 individuals).
- Merenta Mountain (1 location, 1 subpopulation): the subspecies was collected there once in the 1980s and there are no recent data on the population, and confusion with Fritillaria graeca is possible in this area; this locality is not considered in this assessment.
The subspecies seems to be a typical element of Mediterranean scrub and was certainly more widespread in Attiki 100 years ago. The area of occupancy and the total population size have been reduced due to land use changes during this period; however this reduction cannot be quantified. Further loss of habitat and area of occupancy are almost certain for the locations of Tourkovounia and Drakonera and probable for the locations of Agia Marina, Grammatiko, Parnitha, and Penteli.
Fritillaria obliqua subsp. tuntasia has been reported at the following locations:
The current total population size is at least 3,270 mature individuals but taking into account the uncounted locations on Kythnos which is the main distribution area of the plant, nor the other islands with no population estimates. The total population might be 6,000 plants. Four of the known subpopulations contain fewer than 250 individuals which is considered the minimum viable population.
- Kythnos (sixteen locations, one subpopulation): the population was counted at 13 locations was estimated at 3,270 mature individuals and 430 rosettes. It is almost certain that the plant occurs at more locations on the island.Serifos (three locations, one subpopulation): west central part (200 individuals), north part (25 individuals), central part (20 individuals). It must be noted that these population sizes may in fact be an underestimation of the total subpopulation size.
- Gyaros (thee locations, one subpopulation): at total of 90 plants were counted at two of the locations, but the total subpopulation size must be at least 200 individuals.
- There are no population data for Folegandros Island and Piperi Islet but it is almost certain that these subpopulations are small too, and the identity of records from these islands requires confirmation.