Population Viability Analysis for Bird Conservation: Prediction, Heuristics, Monitoring and Psychology

2000 ◽  
Vol 100 (5) ◽  
pp. 347-353 ◽  
Author(s):  
Mark A. Burgman
Keyword(s):  
Population Viability Analysis ◽  
Population Viability ◽  
Bird Conservation ◽  
Viability Analysis

scholarly journals A population viability analysis (PVA) for Cabot's Tragopan (Tragopan caboti) in Wuyanling, south-east China

2007 ◽  
Vol 17 (2) ◽  
pp. 151-161 ◽  
Author(s):  
Yanyun Zhang ◽  
Guangmei Zheng
Keyword(s):  
Population Size ◽  
Extinction Risk ◽  
Population Viability Analysis ◽  
Field Studies ◽  
Population Viability ◽  
Sensitivity Analyses ◽  
East China ◽  
Suitable Habitat ◽  
Bird Conservation ◽  
Viability Analysis

AbstractUnderstanding the status of fragmented populations and predicting their fate is an increasingly important part of bird conservation. Population viability analysis (PVA) can help in this process and is widely used for assessing the extinction risk faced by threatened species and for finding the key factors affecting population status and survival prospects. From 1982 to 2004, 14 scientists studied the population of the globally threatened Cabot's Tragopan Tragopan caboti in Wuyanling National Natural Reserve (WNNR), south-east China and collected life-history data on the population. Using VORTEX, we analysed the viability of the population in the reserve and this predicted that the population size will increase for the next 50 years and will then show a very slight decline for the next 50 years. The loss of heterozygosity is predicted to be 14%, suggesting that the population may not be viable in the long term. Sensitivity analyses showed that nest loss is the most important factor affecting population size and the survival probability of the population, which is supported by field studies. Though the new evidence shows that Cabot's Tragopan can build nests in spruce forest successfully, broad-leaf forest is still necessary for them for foraging, especially at some times of the year. The simulation also shows that the probability of survival and the size of the population will decrease markedly if the extent of suitable habitat is reduced even relatively slowly (such as 0.1% per year). Overall, we conclude that the PVA has provided very informative guidance to future management and research on Cabot's Tragopan at Wuyanling National Nature Reserve.

scholarly journals Linking cost efficiency evaluation with population viability analysis to prioritize wetland bird conservation actions

2011 ◽  
Vol 144 (9) ◽  
pp. 2354-2361 ◽  
Author(s):  
Esther Sebastián-González ◽  
José Antonio Sánchez-Zapata ◽  
Francisco Botella ◽  
Jordi Figuerola ◽  
Fernando Hiraldo ◽  
...  
Keyword(s):  
Cost Efficiency ◽  
Population Viability Analysis ◽  
Population Viability ◽  
Bird Conservation ◽  
Efficiency Evaluation ◽  
Viability Analysis ◽  
Conservation Actions

scholarly journals Can we reestablish a self-sustaining population? A case study on reintroduced Crested Ibis with population viability analysis

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yashuai Zhang ◽  
Fang Wang ◽  
Zhenxia Cui ◽  
Min Li ◽  
Xia Li ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Population Size ◽  
Carrying Capacity ◽  
Wild Population ◽  
Population Viability Analysis ◽  
Population Viability ◽  
Viability Analysis ◽  
Crested Ibis ◽  
Reintroduced Population

Abstract Background One of the most challenging tasks in wildlife conservation and management is clarifying which and how external and intrinsic factors influence wildlife demography and long-term viability. The wild population of the Crested Ibis (Nipponia nippon) has recovered to approximately 4400, and several reintroduction programs have been carried out in China, Japan and Korea. Population viability analysis on this endangered species has been limited to the wild population, showing that the long-term population growth is restricted by the carrying capacity and inbreeding. However, gaps in knowledge of the viability of the reintroduced population and its drivers in the release environment impede the identification of the most effective population-level priorities for aiding in species recovery. Methods The field monitoring data were collected from a reintroduced Crested Ibis population in Ningshan, China from 2007 to 2018. An individual-based VORTEX model (Version 10.3.5.0) was used to predict the future viability of the reintroduced population by incorporating adaptive patterns of ibis movement in relation to catastrophe frequency, mortality and sex ratio. Results The reintroduced population in Ningshan County is unlikely to go extinct in the next 50 years. The population size was estimated to be 367, and the population genetic diversity was estimated to be 0.97. Sensitivity analysis showed that population size and extinction probability were dependent on the carrying capacity and sex ratio. The carrying capacity is the main factor accounting for the population size and genetic diversity, while the sex ratio is the primary factor responsible for the population growth trend. Conclusions A viable population of the Crested Ibis can be established according to population viability analysis. Based on our results, conservation management should prioritize a balanced sex ratio, high-quality habitat and low mortality.

Unsustainable harvest of dugongs in Torres Strait and Cape York (Australia) waters: two case studies using population viability analysis

2004 ◽  
Vol 7 (4) ◽  
pp. 417-425 ◽  
Author(s):  
Robert Heinsohn ◽  
Robert C. Lacy ◽  
David B. Lindenmayer ◽  
Helene Marsh ◽  
Donna Kwan ◽  
...  
Keyword(s):  
Case Studies ◽  
Population Viability Analysis ◽  
Population Viability ◽  
Viability Analysis ◽  
Cape York ◽  
Torres Strait

Comment on sea lion population viability analysis

Polar Biology ◽  
2012 ◽  
Vol 35 (10) ◽  
pp. 1617-1618 ◽  
Author(s):  
Paul A. Breen ◽  
David J. Gilbert ◽  
Paul J. Starr
Keyword(s):  
Population Viability Analysis ◽  
Population Viability ◽  
Sea Lion ◽  
Viability Analysis
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