Supplementary feeding and endangered avian scavengers: benefits, caveats, and controversies DOI
Ainara Cortés‐Avizanda, Guillermo Blanco, Travis L. DeVault

et al.

Frontiers in Ecology and the Environment, Journal Year: 2016, Volume and Issue: 14(4), P. 191 - 199

Published: May 1, 2016

Large avian scavengers are among the most vulnerable vertebrates, and many of their populations have declined severely in recent decades. To help mitigate this marked reduction abundance, supplementary feeding stations ( SFS ; colloquially termed “vulture restaurants”) been created worldwide, often without consideration scientific evidence supporting suitability practice. effective important tools for conservation reintroduction scavengers. However, negative consequences can result from large aggregations individual birds, disrupting intraguild processes promoting density‐dependent decreases productivity. At community level, favor congregation predators (ie facultative scavengers), increasing predation risk on small‐ medium‐sized vertebrates vicinity . These might also affect natural selection even render maladapted to environments. We examine future scenarios relation ecosystem services, changes agro‐grazing economies land uses, ultimately rewilding landscapes where play a controversial role.

Language: Английский

How Predictability of Feeding Patches Affects Home Range and Foraging Habitat Selection in Avian Social Scavengers? DOI Creative Commons
Sophie Monsarrat, Simon Benhamou, François Sarrazin

et al.

PLoS ONE, Journal Year: 2013, Volume and Issue: 8(1), P. e53077 - e53077

Published: Jan. 3, 2013

Feeding stations are commonly used to sustain conservation programs of scavengers but their impact on behaviour is still debated. They increase the temporal and spatial predictability food resources while have supposedly evolved search for unpredictable resources. In Grands Causses (France), a reintroduced population Griffon vultures Gyps fulvus can find carcasses at three types sites: 1. “light feeding stations”, where farmers drop farm (spatially predictable), 2. “heavy from nearby farms concentrated temporally predictable) 3. open grasslands, randomly distributed (unpredictable). The vulture’s foraging was investigated using 28 GPS-tracked vultures. average home range size maximal in spring (1272±752 km2) minimal winter (473±237 highly variable among individuals. Analyses characteristics habitat selection via compositional analysis showed that were always preferred compared rest particularly when scarce (summer) or flight conditions poor (winter), limiting long-ranging movements. However, optimal, ranges also encompassed large areas grassland could resources, suggesting did not lose natural ability forage even available. However during seasons abundance limited, seemed favour light over heavy stations, probably because reduced intraspecific competition pattern closer dispersion landscape. Light interesting tools managing don’t prevent feed other places with possibly high risk intoxication (poison).

Language: Английский

Citations

178
Sanitary versus environmental policies: fitting together two pieces of the puzzle of European vulture conservation DOI Open Access
Antoni Margalida, José A. Donázar, Martina Carrete

et al.

Journal of Applied Ecology, Journal Year: 2010, Volume and Issue: 47(4), P. 931 - 935

Published: June 10, 2010

Summary 1. Between 1996 and 2000 the appearance of bovine spongiform encephalopathy swiftly became one most serious public health political crises concerning food safety ever experienced in European Union (EU). Subsequent sanitary regulations led to profound changes management livestock carcasses (i.e. industrial destruction around 80% all animal carcasses), thereby threatening last remaining healthy scavenger populations Old World thus contradicting long‐term environmental policies EU. 2. Several warning signs such as a decrease breeding success, an apparent increase mortality young age classes vultures number cases attacking killing cattle, well halt population growth, suggest that availability resources has had harmful effects on vulture populations. 3. 2002 2005, dispositions EU (2003/322/CE 2005/830/CE) enabled conservation managers adopt rapid solutions creation restaurants) aimed at satisfying requirements vultures. However, these measures may seriously modify habitat quality have indirect detrimental avian communities. 4. Synthesis applications . Conservation policy‐makers need balance demands protection biodiversity. The carrion provisioning be more flexible there needs greater compatibility between policies. We advocate authorize abandonment favours wild herbivores help maintain scavengers. strategies should incorporated into new Commission regulations, which effective 2011.

Language: Английский

Citations

168
Impacts of wildlife baiting and supplemental feeding on infectious disease transmission risk: A synthesis of knowledge DOI
Anja Sorensen, Floris M. van Beest, Ryan K. Brook

et al.

Preventive Veterinary Medicine, Journal Year: 2013, Volume and Issue: 113(4), P. 356 - 363

Published: Nov. 26, 2013

Language: Английский

Citations

161
Human–nature interactions and the consequences and drivers of provisioning wildlife DOI Creative Commons
Daniel T. C. Cox, Kevin J. Gaston

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2018, Volume and Issue: 373(1745), P. 20170092 - 20170092

Published: March 12, 2018

Many human populations are undergoing an extinction of experience, with a progressive decline in interactions nature. This is consequence both loss opportunity for, and orientation towards, such experiences. The trend concern part because nature can be good for health wellbeing. One potential means redressing these losses through the intentional provision resources to increase wildlife close proximity people, thereby increasing positive human–nature experiences, thence array benefits that result. In this paper, we review evidence resource subsidies have cascade effects. some Westernized countries, scale extraordinarily high, doubtless leads negative impacts wildlife. turn, often lead more frequent, reliable closer interactions, greater variety species. consequences wellbeing remain poorly understood, although documented context broadly seem likely apply. There also important feedback loops need better characterized if provisioning contribute effectively towards averting experience. article theme issue ‘Anthropogenic host–parasite dynamics wildlife’.

Language: Английский

Citations

159
Supplementary feeding and endangered avian scavengers: benefits, caveats, and controversies DOI
Ainara Cortés‐Avizanda, Guillermo Blanco, Travis L. DeVault

et al.

Frontiers in Ecology and the Environment, Journal Year: 2016, Volume and Issue: 14(4), P. 191 - 199

Published: May 1, 2016

Large avian scavengers are among the most vulnerable vertebrates, and many of their populations have declined severely in recent decades. To help mitigate this marked reduction abundance, supplementary feeding stations ( SFS ; colloquially termed “vulture restaurants”) been created worldwide, often without consideration scientific evidence supporting suitability practice. effective important tools for conservation reintroduction scavengers. However, negative consequences can result from large aggregations individual birds, disrupting intraguild processes promoting density‐dependent decreases productivity. At community level, favor congregation predators (ie facultative scavengers), increasing predation risk on small‐ medium‐sized vertebrates vicinity . These might also affect natural selection even render maladapted to environments. We examine future scenarios relation ecosystem services, changes agro‐grazing economies land uses, ultimately rewilding landscapes where play a controversial role.

Language: Английский

Citations

158