scholarly journals Influence of new irrigated croplands on wild boar (Sus scrofa) road kills in NW Spain

2012 ◽  
Vol 35 (2) ◽  
pp. 247-252 ◽  
Author(s):  
V. J. Colino–Rabanal, ◽  
◽  
J. Bosch ◽  
Mª J. Muñoz ◽  
S. J. Peris ◽  
...  

In recent decades, wild boar populations have increased both in number and distribution. This rise is partly related to the increase in cropland devoted to maize (Zea mays) cultivation, as wild boar find food and refuge in these areas. This population expansion has led to an increase in the number of wild boar vehicle collisions (WBVCs). The goal of the present study was to evaluate a set of spatio–temporal factors that influence WBVCs related to maize crops on the Northern Spanish Plateau (the region of Castile and Leon). We compared the maize pattern with the factors related to total WBVC numbers. We observed that whereas the total occurrence of WBVCs usually increased with forest cover and speed and traffic volumes, maize areas were one of the main explanatory variables in plateau models. To avoid collisions in these areas in future, a number of mitigation measures are outlined.

2013 ◽  
Vol 60 ◽  
pp. 121-133 ◽  
Author(s):  
Beatriz Rodríguez-Morales ◽  
Emilio Rafael Díaz-Varela ◽  
Manuel Francisco Marey-Pérez

2018 ◽  
Author(s):  
Saint-Andrieux Christine ◽  
Calenge Clément ◽  
Bonenfant Christophe

AbstractWildlife–vehicle collisions are of increasing concern with regards to the continuous and accelerating anthropogenic development. Preventing and mitigating collisions with wildlife will require a better understanding of the environmental and biological drivers of collision risks. Because species of large mammals differ in terms of food requirements, habitat selection and movement behaviours we tested at the management unit level if the density of collisions with red deer, roe deer and wild boar differed in terms of spatial distribution and explanatory factors. From 20,275 documented collisions in France between years 1990 and 2006, we found marked differences in the most influential environmental factors accounting for the density of collisions among the three species. The effect of road density was higher for the red deer than for the two other species and did not level off at our spatial-scale of observation. As expected, the annual hunting harvest – interpreted as a proxy of population abundance – was positively associated with the density of collisions for all species, being the strongest for red deer. While the collision density decreased with the proportion of forest in a management unit for wild boar, it increased with the fragmentation of forests for red deer that commute among forest patches between day and night. To reduce the number of wildlife– vehicle collisions, our results suggest to generalise road fencing and/or a control of abundance of large herbivore populations. Mitigation measures should target units where the collision risk is the highest for the most problematic species.


Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1345
Author(s):  
Linas Balčiauskas ◽  
Jack Wierzchowski ◽  
Andrius Kučas ◽  
Laima Balčiauskienė

Roads do not only have a detrimental effect on nature (fragmenting habitats, isolating populations and threatening biodiversity), but the increasing numbers of wildlife-vehicle collisions are also a direct threat to humans and property. Therefore, mitigation measures should be placed with respect to animal distribution and movements across the roads. We simulated red deer, roe deer and wild boar movements in Lithuania, focusing on the two main highways A1 and A2. Using regional habitat suitability and linkage models, we calculated movement pathways and the most probable crossing zones in 2009. The prognostic value of these models was tested by comparing the pathway predictions to the real roadkill and roadkill cluster locations in 2002–2009 and 2010–2017. Across both periods and on both highways, the roe deer roadkill locations were significantly closer to the model-predicted pathways than to randomly selected points. The prediction of roadkill locations was also good for wild boar. The roe deer roadkill clusters and multi-species clusters were significantly better represented by the model than by random distribution. On both highways, the biggest differences in distance from the predicted locations were near big cities. We recommended wildlife movement models as an additional tool for planning wildlife-vehicle collision mitigation measures and we advise measures for increasing their predicting power.


Author(s):  
Minkyung Kim ◽  
Hyomin Park ◽  
Sangdon Lee

Expressways in Korea are high-speed traffic roads connecting important cities. Road infrastructure continues to expand to accommodate the increase in traffic volume associated with the growth of industry and tourism. Here, data on 36,863 roadkill events that occurred on expressway routes managed by the Korea Expressway Corporation between 2004 and 2019 were analyzed. Characterizing patterns of roadkill is important for prioritizing roadkill mitigation measures. We identified consistently increasing or decreasing trends using Mann–Kendall statistics and Sen’s slope. Roadkill was most common in Gangwon Province and was concentrated between May and June and between October and December. Water deer (Hydropotes inermis) was the most common road-killed species. The trend analysis revealed a statistically significant decline in Gangwon Province and a statistically significant increase in the Capital Area and Chungnam Province. There was a significant increase in wild boar (Sus scrofa) roadkill in the first and fourth quarters. Mitigation measures are needed for regions and species showing increasing trends, including water deer in the first to third quarters, periods for which no decline in water deer roadkill was noted.


2013 ◽  
Vol 198 (3-4) ◽  
pp. 274-283 ◽  
Author(s):  
Mercedes Mezo ◽  
Marta González-Warleta ◽  
José Antonio Castro-Hermida ◽  
M. Yolanda Manga-González ◽  
Raquel Peixoto ◽  
...  

2021 ◽  
pp. 100182
Author(s):  
Emanuela Sannino ◽  
Lorena Cardillo ◽  
Rubina Paradiso ◽  
Anna Cerrone ◽  
Paolo Coppa ◽  
...  

Biologia ◽  
2021 ◽  
Author(s):  
Gabriela Čonková-Skybová ◽  
Silvia Zemanová ◽  
Katarína Bárdová ◽  
Peter Reichel ◽  
Róbert Link ◽  
...  

2021 ◽  
Vol 9 (6) ◽  
pp. 1256
Author(s):  
Teresa Letra Mateus ◽  
Maria João Gargaté ◽  
Anabela Vilares ◽  
Idalina Ferreira ◽  
Manuela Rodrigues ◽  
...  

Cystic echinococcosis (CE) is a zoonosis that is prevalent worldwide. It is considered endemic in Portugal but few studies have been performed on Echinococcus granulosus sensu lato and their hosts. In this study, CE cysts are reported for the first time in a free-living wild boar (Sus scrofa) in Portugal. The presence of the metacestodes in the liver of the wild boar was identified by morphological features, microscopic examination and molecular analysis. The sequencing of part of the DNA nuclear ribosomal internal transcribed spacer-1 (ITS-1) region revealed a G5 genotype that presently corresponds to Echinococcus ortleppi. This is the first report of E. ortleppi in Portugal and to the best of the authors’ knowledge, in Europe. These results suggest that wild boar may be a host of CE, namely, crossing the livestock–wildlife interface, which has important public health implications. Wildlife reservoirs must be taken into account as CE hosts and surveillance of game as well as health education for hunters should be implemented using a One Health approach, with implementation of feasible and tailor-made control strategies, namely, proper elimination of byproducts in the field.


Sign in / Sign up

Export Citation Format

Share Document