Fauna Silvestre Atropellada En Dos Vías Principales Que Rodean Los Montes De María, Sucre, Colombia

Nadjar, Orlando De la Ossa; Ossa, Jaime De La

doi:10.24188/recia.v5.n1.2013.481

Cited by 12 publications

(3 citation statements)

References 6 publications

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“…In this study, road mortality was concentrated on four usually abundant, nocturnal, highly mobile, habitat generalist species: D. marsupialis, C. thous, T. mexicana, and P. cancrivorus. Our observations are consistent with findings from previous studies in Colombia, which have shown that these species of wild mammals are more prone to roadkill events (e.g., de la Ossa-Nadjar & de la Ossa-V 2013, 2015, Payan et al 2013, Castillo et al 2015, Monroy et al 2015. We hypothesize that the continued loss of reproductive-age adults of these species due to roadkill in the study area can have severe populational and ecological consequences with cumulative effects that might take multiple generations to recover, or they might never recover at all.…”

Section: Discussionsupporting

confidence: 93%

“…In Colombia, most studies investigating road impacts on wildlife populations have been focused on counts of animals killed by vehicles (e.g., de la Ossa-Nadjar & de la Ossa-V 2013, 2015, Castillo et al 2015, de la Ossa-V & Galván-Guevara 2015, Meza-Joya et al 2015, Monroy 2015, without testing spatio-temporal patterns of wildlife-vehicle collisions (but see Payan et al 2013, Ramos & Meza-Joya 2018 or landscape connectivity models to evaluate roadkill patterns. Beyond the scarce knowledge of how road mortality might affect wildlife populations, most roads in the country lack mitigation measures or they are installed intuitively without studies supporting their location and effectiveness (Payan et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Spatio-Temporal Patterns of Mammal Road Mortality in Middle Magdalena Valley, Colombia

2019

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Wildlife-vehicle collisions are acknowledged as the leading source of vertebrate mortality worldwide. Here, we examined spatio-temporal patterns of mammal road mortality in three routes on a fragmented landscape in the Middle Magdalena Valley, Santander department, Colombia. We identified the species affected by road mortality, estimated the roadkill rates for each road segment, and identified roadkill hotspots related to multi-scale structural connectivity. During an eigth-month period, we recorded a total of 152 mammal roadkills of 12 native species. The roads with the highest roadkill rates were Departmental Route 01 (DR01) and National Route 66 (NR66), but roadkill aggregations corresponding to potential roadkill hotspots were only identified on the route DR01. These hotspots intersect with sections of the landscape with lower connectivity, suggesting that mammal species are forced to leave suitable habitats in response to habitat fragmentation, increasing the risk of wildlife-vehicle collisions. Our results contribute to understanding spatio-temporal factors potentially promoting mammal roadkill events and offer a unique opportunity to designing effective mitigation measures that will work properly.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Patterns of Mammal Road Mortality in Middle Magdalena Valley, Colombia

2019

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“…En Colombia existen diversos reportes sobre el atropellamiento de T. mexicana, siendo mencionado, inclusive, como uno de los mamíferos más atropellados en algunos tramos viales del país (Argotte & Monsalvo, 2002;Payán et al, 2013). En cuanto al Caribe colombiano, el oso melero ha sido reportado como una especie vulnerable al atropellamiento en seis de sus ocho departamentos (Sánchez-Páez et al, 2004;De la Ossa-Nadjar & De la Ossa, 2013;Payán et al, 2013;Viloria-Rivas & Chacón, 2014;De la Ossa & Galván-Guevara, 2015;Monroy et al, 2015), lo que indica que es una problemática generalizada.…”

Section: Discussionunclassified

El oso melero (Tamandua mexicana) en el Caribe colombiano: aportes sobre su ecología y amenazas

Rojano¹,

Pacheco²,

Polo³

2016

Edentata

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El oso melero (Tamandua mexicana) en el Caribe colombiano: aportes sobre su ecología y amenazas 1 Autor para correspondenciaResumen El objetivo de este trabajo es aportar información sobre la ecología y amenazas del oso melero (Tamandua mexicana) en la región Caribe colombiana. Para estimar la densidad poblacional se realizaron 10 transectos lineales en Pedraza, Magdalena. De igual forma, se acumuló un recorrido de 1.356 km en la Vía Parque Nacional Natural Isla Salamanca, Magdalena, para determinar la frecuencia de atropellamientos en las vías. Por último, se recopilaron relatos de conflictos con perros domésticos en cuatro departamentos del Caribe. La densidad poblacional de osos meleros en Pedraza fue de 0,81 ind/km 2 y la tasa de encuentro de 2,43 ind/100 km. La tasa de atropellamientos durante el periodo de estudio en Vía Parque Isla Salamanca fue de 0,006 ind/km, mientras que la frecuencia fue 0,6 ind/día. Se recopilaron cuatro sucesos de conflicto con perros, uno de ellos causante de la muerte del ejemplar silvestre. Estos datos podrán utilizarse para diseñar futuros planes de conservación, atendiendo los procesos de transformación de los ecosistemas naturales que sufre la región Caribe colombiana.Palabras clave: atropellamientos, Colombia, densidad, Vermilingua, Xenarthra The northern tamandua (Tamandua mexicana) in the Colombian Caribbean: contributions on its ecology and threatsAbstract The aim of this study was to provide information about the ecology and threats of the northern tamandua (Tamandua mexicana) in the Caribbean region of Colombia. Linear transects were performed to estimate the population density. Similarly, the frequency of road collisions was determined by monitoring a total of 1,356 km of the Vía Parque Nacional Natural Isla Salamanca road, Magdalena. Finally, reports of conflicts with domestic dogs were collected in four departments of the Caribbean region. The population density of the northern tamandua in the study area was 0.81 ind/km 2 and the encounter rate 2.43 ind/100 km. The road kill rate in Isla Salamanca was estimated at 0.006 ind/km and a frequency of 0.6 ind/day. Four incidents with dogs were reported; one of them resulted in the death of a tamandua. These results may be used to design future conservation plans, taking into account natural ecosystem transformation processes in the Caribbean region of Colombia.

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Wildlife roadkill patterns in a fragmented landscape of the Western Amazon

Filius

Hoek

Jarrín‐V

et al. 2020

Ecology and Evolution

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One of the most evident and direct effects of roads on wildlife is the death of animals by vehicle collision. Understanding the spatial patterns behind roadkill helps to plan mitigation measures to reduce the impacts of roads on animal populations. However, although roadkill patterns have been extensively studied in temperate zones, the potential impacts of roads on wildlife in the Neotropics have received less attention and are particularly poorly understood in the Western Amazon. Here, we present the results of a study on roadkill in the Amazon region of Ecuador; a region that is affected by a rapidly increasing development of road infrastructure. Over the course of 50 days, in the wet season between September and November 2017, we searched for road‐killed vertebrates on 15.9 km of roads near the city of Tena, Napo province, for a total of 1,590 surveyed kilometers. We recorded 593 dead specimens, predominantly reptiles (237 specimens, 40%) and amphibians (190, 32%), with birds (102, 17%) and mammals (64, 11%) being less common. Recorded species were assigned to three functional groups, based on their movement behavior and habitat use (“slow,” “intermediate,” and “fast”). Using Ripley's K statistical analyses and 2D HotSpot Identification Analysis, we found multiple distinct spatial clusters or hotspots, where roadkill was particularly frequent. Factors that potentially determined these clusters, and the prevalence of roadkill along road segments in general, differed between functional groups, but often included land cover variables such as native forest and waterbodies, and road characteristics such as speed limit (i.e., positive effect on roadkill frequency). Our study, which provides a first summary of species that are commonly found as roadkill in this part of the Amazon region, contributes to a better understanding of the negative impacts of roads on wildlife and is an important first step toward conservation efforts to mitigate these impacts.

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Fauna Silvestre Atropellada En Dos Vías Principales Que Rodean Los Montes De María, Sucre, Colombia

Cited by 12 publications

References 6 publications

Spatio-Temporal Patterns of Mammal Road Mortality in Middle Magdalena Valley, Colombia

Spatio-Temporal Patterns of Mammal Road Mortality in Middle Magdalena Valley, Colombia

El oso melero (Tamandua mexicana) en el Caribe colombiano: aportes sobre su ecología y amenazas

Wildlife roadkill patterns in a fragmented landscape of the Western Amazon

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