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<strong>EEP</strong> STUDBOOK CROWNED PIGEONS SUMMARIES<br />
1.2 Summary of the selected management data<br />
for Goura cristata <strong>EEP</strong> 1995 - 1999<br />
Age distribution (See 3.1)<br />
The age of 53 individuals (30.5 males and 22.5 females) in the current population was known<br />
on 31 December 1999. There were 14 male specimens and 13 female specimens of unknown<br />
age.<br />
Current population size (See 3.2)<br />
The current population as of 31 December 1999 of the Goura cristata species consists of<br />
35.27.17 (Total: 79).<br />
Number of births and deaths (See 3.3 and 3.4)<br />
In 1995, 14 Goura cristata crowned <strong>pigeon</strong>s were born and 10 died.<br />
In 1996, 17 Goura cristata crowned <strong>pigeon</strong>s were born and 12 died.<br />
In 1997, 9 Goura cristata crowned <strong>pigeon</strong>s were born and 3 died.<br />
In 1998, 4 Goura cristata crowned <strong>pigeon</strong>s were born and 11 died.<br />
In 1999, 6 Goura cristata crowned <strong>pigeon</strong>s were born and 7 died.<br />
Age of individuals at death during the period 1995 – 1999<br />
Age 0-30d 30d-1y 1 + -5y 5 + –10y 10 + -15y 15 + –20y 20 + y Total<br />
Est. 0 1 0 3 2 0 1 7<br />
Known 7 4 11 9 5 0 0 36<br />
Total 7 5 11 12 7 0 1 43<br />
Est. = estimated age, or minimum age, based on date of arrival<br />
Known = age known<br />
Estimated ages are based on date of arrival, thus the age at death for estimated age could be<br />
higher. The mortality of adults in the Goura cristata population did not differ a lot from the<br />
younger age categories. The 0-30 day group comprised only 16,3 % of all deaths.<br />
Transfers, Imports and Exports (See 3.5)<br />
20 transfers were made in 1995, 11 in 1996, 2 in 1997, 5 in 1998 and 6 in 1999. 2 crowned<br />
<strong>pigeon</strong>s were transferred to unknown institutes at unknown dates.<br />
Conclusion<br />
Unfortunately in 1998 and 1999 the deaths exceeded the <strong>number</strong> of births. In 1995, 1996 and<br />
1997 the births exceeded the deaths. The population of the Goura cristata species is<br />
decreasing in the last two years (1998 – 1999) due to high mortality, despite the imports.<br />
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