Articles | Volume 21, issue 2
https://doi.org/10.5194/we-21-79-2021
https://doi.org/10.5194/we-21-79-2021
Standard article
 | 
18 Oct 2021
Standard article |  | 18 Oct 2021

Models of poisoning effects on vulture populations show that small but frequent episodes have a larger effect than large but rare ones

Rigas Tsiakiris, John M. Halley, Kalliopi Stara, Nikos Monokrousos, Chryso Karyou, Nicolaos Kassinis, Minas Papadopoulos, and Stavros M. Xirouchakis

Related authors

When nature meets the divine: effect of prohibition regimes on the structure and tree species composition of sacred forests in northern Greece
Valentino Marini Govigli, John R. Healey, Jennifer L. G. Wong, Kalliopi Stara, Rigas Tsiakiris, and John M. Halley
Web Ecol., 20, 53–86, https://doi.org/10.5194/we-20-53-2020,https://doi.org/10.5194/we-20-53-2020, 2020
Short summary

Related subject area

Conservation Ecology
Insights into the habitat associations, phylogeny, and diet of Pipistrellus maderensis in Porto Santo, northeastern Macaronesia
Eva K. Nóbrega, Nia Toshkova, Angelina Gonçalves, André Reis, Elena J. Soto, Sergio Puertas Ruiz, Vanessa A. Mata, Catarina Rato, and Ricardo Rocha
Web Ecol., 23, 87–98, https://doi.org/10.5194/we-23-87-2023,https://doi.org/10.5194/we-23-87-2023, 2023
Short summary
Spatio-temporal patterns of co-occurrence of tigers and leopards within a protected area in central India
Anindita Bidisha Chatterjee, Kalyansundaram Sankar, Yadvendradev Vikramsinh Jhala, and Qamar Qureshi
Web Ecol., 23, 17–34, https://doi.org/10.5194/we-23-17-2023,https://doi.org/10.5194/we-23-17-2023, 2023
Short summary
Changes in the Cerrado vegetation structure: insights from more than three decades of ecological succession
Rogério Victor S. Gonçalves, João Custódio F. Cardoso, Paulo Eugênio Oliveira, and Denis Coelho Oliveira
Web Ecol., 21, 55–64, https://doi.org/10.5194/we-21-55-2021,https://doi.org/10.5194/we-21-55-2021, 2021
Short summary
Toward a new generation of effective problem solvers and project-oriented applied ecologists
Corrado Battisti, Giovanni Amori, and Luca Luiselli
Web Ecol., 20, 11–17, https://doi.org/10.5194/we-20-11-2020,https://doi.org/10.5194/we-20-11-2020, 2020
Short summary
Scientists' warning on endangered food webs
Ruben H. Heleno, William J. Ripple, and Anna Traveset
Web Ecol., 20, 1–10, https://doi.org/10.5194/we-20-1-2020,https://doi.org/10.5194/we-20-1-2020, 2020
Short summary

Cited articles

Allen, E. J., Harris, J. M., and Allen, L. J. S.: Persistence-time models for use in viability analyses of vanishing species, J. Theor. Biol., 155, 33–53, https://doi.org/10.1016/S0022-5193(05)80547-8, 1992. 
Aresu, M., Rotta, A., Fozzi, A., Campus, A., Muzzedous, M., Seccis, D., Fozzi, I., Rosa, D. D., and Berlinguer, F.: Assessing the effects of different management scenarios on the conservation of small island vulture populations, Bird Conserv. Int., 31, 111–128, https://doi.org/10.1017/S0959270920000040, 2020.  
Berec, L., Angulo, E., and Courchamp, F.: Multiple Allee effects and population management, Trends Ecol. Evol., 22, 185–191, https://doi.org/10.1016/j.tree.2006.12.002, 2007. 
Bijleveld, A. I., Egas, M., Van Gils, J. A., and Piersma, T.: Beyond the information centre hypothesis: communal roosting for information on food, predators, travel companions and mates?, Oikos, 119, 277–285, https://doi.org/10.1111/j.1600-0706.2009.17892.x, 2010. 
Botha, A. J., Andevski, J., Bowden, C. G. R., Gudka, M., Safford, R. J., Tavares, J., and Williams, N. P.: Multi-species Action Plan to Conserve African-Eurasian Vultures. CMS Raptors MOU Technical Publication No. 5, CMS Technical Series No. 35, Coordinating Unit of the CMS Raptors MOU, Abu Dhabi, United Arab Emirates, 2017. 
Download
Short summary
Despite frequent media references about the mass poisoning of vultures, this study shows that small but frequent poisoning events may be even worse. Using both mathematical and computer simulation approaches we show that a chain of small poisoning events is more likely to extirpate a newly established colony than a few massive ones with the same overall mortality. Survival also depends critically on the initial population size. These results are of great relevance for restocking initiatives.