Roadkill of medium to large mammals along a Brazilian road (BR-262) in Southeastern Brazil: spatial distribution and seasonal variation

Ferreguetti, Átilla Colombo; Graciano, Jéssica Mascarello; Luppi, Ana Paula; Pereira‐Ribeiro, Juliane; Rocha, Carlos Frederico Duarte; Bergallo, Helena Godoy

doi:10.1080/01650521.2020.1719006

Cited by 27 publications

(13 citation statements)

References 39 publications

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“…However, studies in other regions found specific higher mortality for reptile or mammals during the rainy season (Miranda et al, 2017, Abra et al, 2021, respectively). The number of roadkills tended to decrease with increases in precipitation and temperatures, similar to other studies (Ruiz‐Capillas et al, 2014 but see Ferreguetti et al, 2020). A possibility is that animals’ activity decreases during rainy days (Hanya et al, 2018); however, it may depend on the species (Ascensão et al, 2019).…”

Section: Discussionsupporting

confidence: 89%

“…Garriga et al (2017) found variation in different roads in temperate zones, even with opposite effects for the same abiotic factor. Similar trends may be observed in tropical regions, as it would be the case of studies that found a positive correlation between roadkills and precipitation (Ferreguetti et al, 2020), contrary to my results. Therefore, there is a need for more studies in the region that examine abiotic factors and other potentially influential variables (sex, age, weight, species commonness, activity patterns, among others).…”

Section: Discussioncontrasting

confidence: 78%

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Three‐year monitoring of roadkill trend in a road adjacent to a national park in Panama

Gálvez

2021

Biotropica

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Road networks bring multiple negative effects for biological conservation, including habitat fragmentation, habitat loss, chemical, and noise pollution (Van der Ree et al., 2015). Moreover, roads may directly impact animals by causing changes in home ranges, movement, escape behavior, and possibly even their physiology (Trombulak & Frissell, 2000). One of the most obvious impacts of road networks is wildlife roadkills, which is one of the major sources of vertebrate mortality globally (Hill et al., 2019). However, for many countries, roadkill research is practically non-existing (Schwartz et al., 2020), such as the case of Central America (Pinto et al., 2020). Therefore, there is a substantial underestimation of the impacts of road networks on biodiversity in the region.Understanding the spatial and temporal patterns that influence mortality of wildlife provides the basis for mitigating wildlife threats in areas of ecological importance. Given that roadkill risk depends on multiple

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Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 78%

Three‐year monitoring of roadkill trend in a road adjacent to a national park in Panama

Gálvez

2021

Biotropica

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“…Another important factor is the seasonality of these events. According to Ferreguetti et al (2020), temporal variations are directly related to the behavior and period of activity of mammals, and in this study, carried out in a fragment of BR-262 immersed in the Atlantic Forest in the State of Espírito Santo, the months with the highest rates of roadkill were December, January and February, and those with the lowest rates were April, August and September, being significantly higher during the rainy season than during the dry season. These data do not corroborate those found in the present study, where there was no concentration of the number of fixed cases in a certain period.…”

Section: Discussionmentioning

confidence: 69%

Survey of wildlife rescued and treated from 2014 to 2016 in Joinville (SC), Brazil

Barbosa

Gneiding

Ribeiro

et al. 2021

Rev. Bras. Ciênc. Ambient.

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Natural ecosystems are in constant conflict with the growing and disordered urban expansion, arising from the mismanagement of human developments and infrastructure, facing an accelerated rate of deforestation and defaunation. The intense pressure on natural environments impacts the local fauna through various incidents, generating high mortality, such as hit-and-run, window-crashing, attacks by domestic animals, dissemination of diseases and electrocution. The purpose of this study was to carry out a retrospective survey of the wild fauna rescued and treated at a clinic associated with the environmental police in the region of Joinville - SC. A total of 379 wild animals were treated at the clinic from 2014 to 2016. Of these, 262 (69.13%) were birds, 107 (28.23%) mammals, 9 (2.37%) reptiles and 1 (0.26%) amphibian. The main causes of referral for clinical care were due to trauma (50.66%), seizures (1.32%) and other causes (48.02%), such as home invasion and orphaned puppies. Among the reasons for traumas, pedestrian accidents were the most prevalent, representing 39.58% of the cases treated, followed by animals found to be debilitated without a defined cause (31.77%), attack by domestic animals (14.58%) and window-crashing (9.89%). The data obtained in this study show a rich diversity of species in Joinville. These species are exposed to several anthropogenic challenges and barriers derived mainly from intense displacement and human invasion, causing many animals to move in order to adapt to urban areas.

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“…For the long-term survival of the jaguar, it is essential to implement conservation plans that consider the dispersal and reproduction of the species along the Paraguay River 74 , increase the network and size of PAs, and adequately allocate funding and personnel to maintain the PAs. Furthermore, careful implementation of strategies to mitigate the risk of fire 15,16,75 and other human impacts outside PAs [5][6][7][8][9][10][11]66,76 are urgent needs for conservation of the Pantanal. In any case, our results highlight that to sustain viable populations of jaguars and other species, conservation plans for the Pantanal must account for fire impact on PAs and other vital areas for biodiversity.…”

Section: Fires As a Threat To Jaguarsmentioning

confidence: 99%

“…However, jaguar populations are increasingly threatened due to the accelerated intensification of land use in these areas. The main threats to jaguar conservation 1,5 are habitat loss 4 , prey poaching 4 , retaliation for livestock depredation [6][7][8] , pollution from mining and pesticides 9 , increased agricultural activities 10 and human infrastructure (e.g., increased roadkill rates) [11][12][13] . Although fire is typically considered a threat to a small proportion of the overall jaguar population 1 , the unprecedented severity of the 2020 fires in the Pantanal [14][15][16][17][18] suggests that fire may be an unaccounted risk to jaguar conservation in this biome.…”

Section: Introductionmentioning

confidence: 99%

Wildfires Disproportionately Affected Jaguars in the Pantanal

Barros

Morato

Fleming

et al. 2022

Preprint

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The Pantanal wetland harbours the second largest population of jaguars in the world. Alongside climate and land-use changes, the recent mega-fires in the Pantanal may pose a new threat to the jaguars’ long-term survival. To put these growing threats into perspective, we addressed the reach and intensity of fires that have affected jaguar conservation in the Pantanal ecoregion over the last 16 years. The 2020 fires were the most severe in the annual series, followed by 2019, burned 31% of the Pantanal and affected (I) 45% of the estimated jaguar population (87% of these affected in Brazil); II) 79% of the home range (HRs) areas, and (III) 54% of the protected areas (PAs) within HRs. Fires consumed core habitats and injured several individual jaguars, the Pantanal’s apex predator and umbrella species. Displacement, hunger, dehydration, territorial defence, and lower fecundity are among the impacts that may affect the abundance of the species. These impacts are likely to affect other less mobile species and, therefore, the ecological stability of the region. A solution to prevent the recurrence of mega-fires lies in combating the anthropogenic causes that intensify drought conditions, such as implementing actions to protect springs, increasing the number and area of PAs, regulating the use of fire, and allocating fire brigades before dry seasons.

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Roadkill of medium to large mammals along a Brazilian road (BR-262) in Southeastern Brazil: spatial distribution and seasonal variation

Cited by 27 publications

References 39 publications

Three‐year monitoring of roadkill trend in a road adjacent to a national park in Panama

Three‐year monitoring of roadkill trend in a road adjacent to a national park in Panama

Survey of wildlife rescued and treated from 2014 to 2016 in Joinville (SC), Brazil

Wildfires Disproportionately Affected Jaguars in the Pantanal

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