Nature reserves and the conservation of Iberian shrubsteppe passerines: The paradox of nest predation

Suárez, Francisco; Yanes, María del Carmen Machado; Herranz, Jesús; Manrique, Juan

doi:10.1016/0006-3207(93)90385-e

Cited by 47 publications

(44 citation statements)

References 6 publications

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“…Indeed, predator control has been proven to be associated with benefits for some biodiversity indicators (Fletcher et al 2010), although these results are not general in all contexts. In our study area, it has been shown that predator control may be beneficial for other species of conservation concern, such as some ground-nesting steppe birds (Suárez et al 1993, Estrada et al 2012). In addition, most partridge losses to predation are caused by anthropophilic common predators (Herranz 2001), such as foxes and magpies, which can be legally controlled.…”

Section: Conclusion and The Way Forwardmentioning

confidence: 76%

The Role of Economic and Social Factors Driving Predator Control in Small-Game Estates in Central Spain

Delibes‐Mateos¹,

Díaz-Fernández²,

Ferreras³

et al. 2013

E&S

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One of the most important human-wildlife conflicts in the world is that where predators are involved. Predators may compete with us for the same resources, such as game species. As a consequence, predators have been frequently controlled by game managers, which has negatively affected many predator populations worldwide. The understanding of human-wildlife conflicts requires a multidisplicinary framework that is rarely considered. We aim to evaluate the attitudes and behavior of game managers with regard to predator management in central Spain, as well as to explore factors that lead to these attitudes and behavior. Data were gathered through face to face interviews with game managers from 59 small-game hunting estates within central Spain. Predator control was employed in 90% of the estates, but control intensity was very variable among estates. Economic interests and perceptions about predators apparently influenced variation in control intensity. The main methods employed were cage-traps and shooting, but some illegal practices (e.g., leg-hold traps or snares without stopping devices) were also admittedly used for carnivores. Most managers considered that efficacy of legal methods for control of foxes (Vulpes vulpes) was very limited. Overall, nonselective methods, such as some types of snares, were more frequently employed in commercial than in noncommercial estates. Most managers believed that predators had an important effect on prey, and therefore that not doing it would lead to smaller hunting bags. Only managers from commercial hunting estates used stronger discourses such as that hunting would be impossible without carrying out predator control, which suggests that their tolerance for predators was lower than that of managers whose main motivation was not economic. Most managers considered that predator control was effective to reduce the number of predators, but only in the short term. Therefore, they highlighted the need of maintaining predator control every year. Our results highlight the important role that both social and economic factors (even stronger than ecological factors) play driving predator control, and therefore the need of incorporating these factors when making decisions to mitigate the human-predator conflict

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Section: Conclusion and The Way Forwardmentioning

confidence: 76%

The Role of Economic and Social Factors Driving Predator Control in Small-Game Estates in Central Spain

Delibes‐Mateos¹,

Díaz-Fernández²,

Ferreras³

et al. 2013

E&S

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show abstract

“…18,19 In 57% of the passerine nests predated during the laying stage in all years (n = 23), the female did not lay any more eggs in the nest. In the remaining cases, there was always a single egg, laid the day after the predation and never incubated.…”

Section: Discussionmentioning

confidence: 99%

Facultative nest-parasitism among Iberian shrubsteppe passerines

Yanes¹,

Herranz²,

Suárez³

1996

Bird Study

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“…Finally, given the overall impact of human management on ecosystems, and the changes occurring in predator guilds in recent times, predator control is sometimes claimed as important for conservation purposes (Suarez et al 1993). Therefore, predator control may be beneficial in some systems, and this has been claimed by hunters (Reynolds & Tapper 1996).…”

Section: Predator Controlmentioning

confidence: 99%

“…In contrast, positive effects of predator control had been found in some studies. For example, Suarez et al (1993) found that passerine nests in a nature reserve suffered high mortality rates due to predation (mainly by foxes and dogs). There was, in contrast, higher success in a close-by area where there was a hunting reserve where feral dogs and occasionally foxes were killed.…”

Section: Effects Of Predator Control On Species Other Than Target Gamementioning

confidence: 99%

“…However, high predation levels can also represent a threat to many non-game birds (Martin 1993, Newton 1993, particularly ground-nesting species in grassland ecosystems (Warner 1994). Predator control exerted due to game interests could therefore potentially benefit other species, (Suarez et al 1993, Tapper 1999. Another example is the release of farm-reared birds to sustain or restore declining game bird numbers, which may have an important impact on ecosystems and on hunting pressure itself (Vargas & Duarte 2001).…”

Section: Introduction Backgroundmentioning

confidence: 99%

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Ecological effects of game management: does supplemental feeding affect herbivory pressure on native vegetation?

et al. 2015

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Context Supplemental feeding of large mammalian herbivores is a common management tool mainly aimed at promoting healthy populations and at increasing productivity and trophy sizes. Such management measure may indirectly affect herbivore effects on plant communities through altered foraging patterns. The quantification of the ecological effects of large herbivore management is important for designing holistic management and conservation programs. Aims Here we aimed at quantifying the ecological effects of supplemental feeding of Iberian red deer, Cervus elaphus hispanicus, on the composition of and on the browsing effects on Mediterranean woody plant community. Methods An experiment was set up in a hunting rangeland located in central Spain, where female deer were kept in enclosures with either exclusive access to natural forages or with additional ad libitum access to a nutritionally rich concentrate. The experiment also included a control area where deer were absent. Key results We observed significant differences in browsing impacts among the supplemented, non-supplemented and control areas, and such effect varied for the different plant species. Plant species which nutritional content complemented that of fodder were more highly consumed, for instance, Erica spp., which digestible fibre content is higher and N content lower than that of provided fodder. The presence of deer and the concentrate supplied, instead, did not influence the relative abundances of shrub species. Conclusions Artificial supplemental feeding provided to ungulates led to increased browsing on plant species which nutritional composition complemented that of the supplement provided. Implications So as to alleviate herbivory impact on all shrubs, we suggest that composition of supplemental feeding should adjust both to the natural forage availability and quality and to ungulate requirements across seasons.

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Nature reserves and the conservation of Iberian shrubsteppe passerines: The paradox of nest predation

Cited by 47 publications

References 6 publications

The Role of Economic and Social Factors Driving Predator Control in Small-Game Estates in Central Spain

The Role of Economic and Social Factors Driving Predator Control in Small-Game Estates in Central Spain

Facultative nest-parasitism among Iberian shrubsteppe passerines

Ecological effects of game management: does supplemental feeding affect herbivory pressure on native vegetation?

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