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Preliminary conservation status of accepted species in
Passiflora subg. Decaloba
By P.M. Jørgensen
A preliminary analysis of the data at hand by January 1, 2007 has been performed and
is summarized in the tables below. We find that 40% of the species are vulnerable or
endangered, while another 40% are not currently threatened. The last 20% has not been
evaluated due to lack of data. This is particularly obvious for the South East Asian
species that constitutes 44% of the data deficient species. We aim at making a more in
debt analysis of the conservation status of all the species as more data becomes available.
It appears that Supersections Decaloba has more critically endangered species
than its proportion of the total number of species warrant, while Bryonioides has
fewer critically endangered species than what would be expected from its proportion of the
species. In the endangered category Supersection Decaloba has again more species than
would be expected while Disemma has too few (actually none due to lack of data).
Decaloba has likewise more species in the vulnerable category than its proportion of
the species merits. If the groups are monophyletic, it seems to indicate that Bryonioides
as a group has been successful with favorable adaptations and a capacity to spread and avoid
extinction. Decaloba on the other hand seems to have more species that are specialists and with
reduced niches and therefore have a higher propensity to go extinct. It is too early to say
anything definite about supersection Disemma.
Supersection Pterosperma |
# coll. |
EOO |
AOO |
EFD |
IUCN |
Passiflora eueidipabulum |
9 |
- |
- |
- |
DD |
Passiflora lancetillensis |
8 |
14302 |
54 |
0 |
DD |
Passiflora microstipula |
2 |
0 |
18 |
100 |
EN |
Passiflora pedicellaris |
1 |
0 |
9 |
0 |
DD |
# coll. = Is the number of collection contained
in the TROPICOS database by Jan 2007.
EOO = Extent of Occurrence, is calculated as a minimal convex polygon and include all
occurrence points. As here calculated it include both terrestrial and non terrestrial areas.
AOO = Area of Occupancy, constitutes a count of grid cells (3 × 3 km) where the species
occurs multiplied by 9 km2
EFD = Extent of Future Decline, is the area that lies outside protected and pristine
areas.
IUCN = is our preliminary threat assessment using the IUCN threat categories and the measurements indicated above. |
Supersection Hahniopathanthus |
# coll. |
EOO |
AOO |
EFD |
IUCN |
Passiflora cissampeloides |
2 |
0 |
18 |
0 |
LC |
Passiflora guatemalensis |
89 |
1292217 |
693 |
53.2 |
LC |
Passiflora hahnii |
46 |
793228 |
360 |
62.5 |
LC |
Passiflora membranacea |
126 |
662742 |
909 |
42.6 |
LC |
Passiflora quetzal |
2 |
0 |
18 |
0 |
DD |
# coll. = Is the number of collection contained
in the TROPICOS database by Jan 2007.
EOO = Extent of Occurrence, is calculated as a minimal convex polygon and include all
occurrence points. As here calculated it include both terrestrial and non terrestrial areas.
AOO = Area of Occupancy, constitutes a count of grid cells (3 × 3 km) where the species
occurs multiplied by 9 km2
EFD = Extent of Future Decline, is the area that lies outside protected and pristine
areas.
IUCN = is our preliminary threat assessment using the IUCN threat categories and the measurements indicated above. |
Supersection Auriculata |
# coll. |
EOO |
AOO |
EFD |
IUCN |
Passiflora auriculata |
121 |
8197756 |
945 |
50.5 |
LC |
Passiflora fanchonae |
0 |
- |
- |
- |
DD |
Passiflora ferruginea |
7 |
262315 |
54 |
50 |
VU |
Passiflora jatunsachensis |
3 |
74223 |
27 |
33.3 |
VU |
# coll. = Is the number of collection contained
in the TROPICOS database by Jan 2007.
EOO = Extent of Occurrence, is calculated as a minimal convex polygon and include all
occurrence points. As here calculated it include both terrestrial and non terrestrial areas.
AOO = Area of Occupancy, constitutes a count of grid cells (3 × 3 km) where the species
occurs multiplied by 9 km2
EFD = Extent of Future Decline, is the area that lies outside protected and pristine
areas.
IUCN = is our preliminary threat assessment using the IUCN threat categories and the measurements indicated above. |
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