E-resources
Peer reviewed
-
Okahisa, Yuji; Nagata, Hisashi
Ibis (London, England), October 2022, Volume: 164, Issue: 4Journal Article
Reintroduction has often been used as a technique for re‐establishing self‐sustaining animal populations that have become extinct within their indigenous range. To achieve conservation success, it is essential to accurately assess the demographic parameters and the IUCN Red List criteria of the population. However, acquiring data on all indicators and estimating criteria according to established definitions can be challenging. Here, we developed an integrated population model (IPM) and population viability analysis (PVA) framework to estimate all demographic parameters and criteria for a reintroduced population of Crested Ibis Nipponia nippon, and to project population dynamics under a range of release scenarios on Sado Island, Japan. Our IPM‐PVA framework integrated roost count and mark–resight data for 415 released and 203 wild‐hatched individuals, as well as reproductive performance for a total of 575 pairs. We aimed to assess survival, reproductive success, population size, number of mature individuals and population projection. In the first year after release, the estimated apparent annual survival rate was 0.566 Bayesian credible intervals (CRI) 0.518–0.614; however, this rate increased after 1 year (0.865; CRI 0.836–0.892). Wild‐hatched juveniles exhibited a high survival rate (0.757; CRI 0.670–0.838) that was just lower than that of adults (0.899; CRI 0.844–0.949). The reproductive success rate varied with pair attributes (released–released pair: 0.245, CRI 0.194–0.299; released–wild pair: 0.377, CRI 0.281–0.471; wild–wild pair: 0.350, CRI 0.237–0.471). Total population size was estimated to be 457 individuals (CRI 384–525), with 261 mature individuals (CRI 211–304) in June 2021. The probability of Crested Ibis extinction in the next five generations was 0%, even if the release was discontinued. Our comprehensive case study demonstrated the effectiveness of IPM‐PVA for the evaluation of ongoing reintroduction programmes.
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.