Trends in hunters, hunting grounds and big game harvest in Spain

Herruzo, A. Casimiro; Martínez‐Jauregui, María

doi:10.5424/fs/2013221-03371

Cited by 33 publications

(17 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The literature review confirms this substantial decrease: from an average of 29.12 birds/100 pylons in the studies carried out during 1980-90 to 6.47 birds/100 pylons obtained in the most recent studies. Differences could be traced back to four possible direct causes: (1) less effort devoted to power line surveys; (2) lower mortality due to implemented retrofitting activities; (3) increase in predator numbers causing a greater carcass consumption thus masking detection probability (Ponce et al, 2010;Herruzo and Martínez-Jáuregui, 2013) or (4) a ''finding'' effect (see below).…”

Section: Areamentioning

confidence: 99%

Space–time trends in Spanish bird electrocution rates from alternative information sources

Guil¹,

Colomer

Moreno-Opo

et al. 2015

Global Ecology and Conservation

View full text Add to dashboard Cite

a b s t r a c tInteraction with man-made infrastructures is one of the main sources of non-natural bird mortality. Here, we use a long-term study to analyse spatial and temporal patterns in avian electrocution in Spain, using ringed birds as well as published reports and articles as information sources. Electrocution rates of ringed birds differ from rates obtained in unringed species. Electrocution rates are likely seasonally asymmetrical and are not constant across study periods: between 1990 and 2005 an annual rising trend of 5% was observed, whereas between 2006 and 2010 this trend decreased (16% annually). From the literature, we confirmed this decreasing trend. However, when we consider large eagles (Aquila genus), which include several of the most threatened bird species in Spain, this Raptors Ringing recoveries Spain decreasing trend is not evident. The results of the analysis of different environmental and socio-economic factors affecting bird electrocution rates are similar between ringed birds and traditional power line surveys. Our modelling suggests three common factors that influence mortality rates: number of hunted rabbits, tree coverage and length of the power line network. Thus, the use of alternative information sources to detect high mortality areas due to electrocution by power lines may be a useful tool to complement other methods.

show abstract

Section: Areamentioning

confidence: 99%

Space–time trends in Spanish bird electrocution rates from alternative information sources

Guil¹,

Colomer

Moreno-Opo

et al. 2015

Global Ecology and Conservation

View full text Add to dashboard Cite

show abstract

“…The negative impacts of ungulate expansion include, among others, damage to forestry and agriculture, increased involvement in vehicle collisions, dissemination of vectorborne and zoonotic diseases, and deleterious effects on the vegetation structure and dynamics (e.g., Côté, Rooney, Tremblay, Dussault, & Waller, 2004;Gortazar, Acevedo, Ruiz-Fons, & Vicente, 2006;Herruzo & Martinez-Jauregui, 2013). In contrast, the recovery of wild ungulate is of paramount importance in promoting the increase in large carnivore populations, in sustaining their populations and in contributing to reduce humancarnivore conflicts (Chapron et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Propagule pressure and land cover changes as main drivers of red and roe deer expansion in mainland Portugal

Carvalho

Torres

Acevedo

et al. 2017

Diversity and Distributions

View full text Add to dashboard Cite

Aim:The management of the rapid expansion of wild ungulate populations is a challenging task and a societal priority. Using a progressive database of red (Cervus elaphus) and roe (Capreolus capreolus) deer colonization over the last three decades, we estimate the range expansion rates and the underlying mechanisms involved in the expansion patterns of red and roe deer populations at the south-western edge of its European distribution.Location: Mainland Portugal. Methods:We compiled and grouped historical red and roe deer distribution data in three time periods (). We used generalized linear mixed models to evaluate how biotic and abiotic drivers determine the expansion patterns of red and roe deer. Results:We reported a significant expansion of red and roe deer populations during the last three decades. The significant interaction between propagule pressure and land cover suggests that the effects of propagule pressure vary along environmental gradients. We found that the influence of livestock on red and roe deer expansion is idiosyncratic. Contrary to red deer, roe deer expansion was also influenced by climatic conditions. We did not detect any significant effect of human factors on the red and roe deer expansion. Main conclusions:The synergistic effects between variables should be taken into account when studying the patterns of species expansion. Our study emphasize that policy makers should consider the spatial, temporal, ecological and societal nuances of species expansion in order to prioritize management measures and to allocate management budgets. Although concerted strategies to curtail species spread should mitigate red and roe deer economic and ecological impacts, these effects can be neutralized by a continuous rural exodus and the consequent forest and shrub encroachment. K E Y W O R D S

show abstract

“…On the other hand, a more recreational approach, focusing on wildlife management, is increasingly appealing to more managers that rely on alternative economic resources, such as hunting or ecotourism (San Miguel et al. ; Olea & San Miguel ; Herruzo & Martínez‐Jáuregui ). Such a strong shift in management practices is expected to affect tree recruitment and plant composition of the currently threatened Mediterranean dehesas.…”

Section: Introductionmentioning

confidence: 99%

The use of shrub cover to preserve Mediterranean oak dehesas: a comparison between sheep, cattle and wild ungulate management

Perea

López‐Sánchez

Roig

2015

Applied Vegetation Science

View full text Add to dashboard Cite

Questions Oak savanna‐like systems (dehesas) are highly valuable and protected systems that are strongly compromised by a continuous failure of oak recruitment. Our question is whether different long‐term management types involving cattle, sheep and wild ungulates affect the abundance and diversity of safe microsites (shrubs) for oak recruitment. We also assess microsite location and species‐specific differences among the nurse shrubs in order to provide management guidance. Location Dehesas of holm oak (Quercus ilex) in central Spain. Methods We examined oak regeneration in four different microsites (tree canopy, shrub cover, open and tree–shrub) and across three distinctive and representative management types for a period of, at least, 30 yr: (1) traditional management (i.e. extensive sheep rearing); (2) high commercially competitive management (extensive cattle); and (3) wildlife management (wild ungulate grazing, mostly deer). Results Wildlife management showed higher abundance and diversity of shrubs. Predicted seedling density under wildlife management was three‐fold higher than sheep, and almost nine‐fold higher than under cattle management. Highest oak density was found under shrubs that grew beneath trees, twice as high than under trees, ten‐fold higher than under shrubs outside the tree canopy, and almost 40‐fold higher than in open microsites. However, the proportional facilitative effect of shrubs was higher in open areas than under trees. Three shrub species (Erica australis, Genista hirsuta and Rosmarinus officinalis) showed significantly higher probability of facilitating oak seedlings in comparison to other shrub species, indicating species‐specific differences in plant facilitation. Most young oak trees (saplings and juveniles) exceeded the average shrub height, suggesting that facilitation occurs mostly at the seedling stage. Conclusions Only dehesas under reasonable wildlife management showed a clear three‐layered structure with a significant representation of the shrub layer, which increased seedling density. Current cattle management was the least sustainable in terms of oak regeneration. Even though shrub cover, in general, facilitated oak seedlings, not all species were equivalent facilitators. Only three low‐palatable and large‐sized shrub species were keystone facilitators that should be especially considered in restoration and management practices. Further agriculture policies should promote reduction of cattle densities, rotational grazing and mixed species management to enhance the regeneration of these systems.

show abstract

Trends in hunters, hunting grounds and big game harvest in Spain

Cited by 33 publications

References 30 publications

Space–time trends in Spanish bird electrocution rates from alternative information sources

Space–time trends in Spanish bird electrocution rates from alternative information sources

Propagule pressure and land cover changes as main drivers of red and roe deer expansion in mainland Portugal

The use of shrub cover to preserve Mediterranean oak dehesas: a comparison between sheep, cattle and wild ungulate management

Contact Info

Product

Resources

About