STUDBOOK: Papuan wreathed hornbill, Aceros plicatus
The first edition of the North American Regional Aceros studbook was current through 31
December 1999. Since then, 2 annual updates were distributed to participants.
A second edition will be current through 31 December 2002 and will be
printed early in 2003. In the past 3 years, the captive status of the 5 species
of Aceros covered in this
regional studbook remained relatively stable.
This means that births and imports approximately equaled deaths
and exports. Whether this is good or just satisfactory will
be better known when the Population Management Plan (PMP) for this genus
is completed. With a PMP, we
will set goals for optimum number of birds for each species. The preliminary
analysis is that we should at least recommend for PMP status, Aceros corrugatus. We might not have enough available spaces to provide
for a long term, genetically diverse, self-sustaining captive population
for any of the remaining 4 species. The following listing show the numbers
of current living birds at the end of the past three years.
|
| Aceros cassidix: | 9.10.0 (19) in 8 institutions as of 31 December 1999 |
| 10.9.0 (19) in 8 institutions as of 31 December 2000 | |
| 10.9.1 (20) in 8 institutions as of 31 December 2001 | |
|
|
|
| Aceros corrugatus: | 30.33.3 (65) in 24 institutions as of 31 December 1999 |
| 33.31.1 (65) in 24 institutions as of 31 December 2000 | |
| 32.29.1 (62) in 26 institutions as of 31 December 2001 | |
|
|
|
| Aceros leucocephalus: | 2.2.0 (4) in 2 institutions as of 31 December 1999 |
| 2.2.0 (4) in 2 institutions as of 31 December 2000 | |
| 2.1.0 (3) in 2 institutions as of 31 December 2001 | |
|
|
|
| Aceros plicatus : | 10.8.0 (18) in 8 institutions as of 31 December 1999 |
| 10.7.0 (17) in 8 institutions as of 31 December 2000 |
|
| 10.7.0 (17) in 8 institutions as of 31 December 2001 | |
|
|
|
| Aceros undulatus : | 16.18.0 (34) in 13 institutions as of 31 December 1999 |
| 16.17.0 (33) in 12 institutions
as of 31 December 2000 |
|
| 14.17.1 (32) in 13 institutions as of 31 December 2001 | |
|
SUMMARY for 2001:
Unfortunately there has not been any breeding success
in the past two years. Breeding of this species is encouraged. Offspring
can be transferred to Asian and/or European collections so as not to
impact population management plans for other Aceros species. By so doing, this would increase the genetic diversity
of those other regional captive populations.
Irena Pavlin Bitenc is the European studbook keeper
for this species. She can be reached at [email protected]
at Zooloski vrt Mesta Ljubljana, Vecna Pot 70, 61000 Ljubljana. Slovenia. |