{"id":1782,"date":"2026-05-22T23:17:53","date_gmt":"2026-05-22T23:17:53","guid":{"rendered":"https:\/\/xenarthrans.org\/journal\/?post_type=issue&p=1782"},"modified":"2026-05-22T23:18:20","modified_gmt":"2026-05-22T23:18:20","slug":"xenarthra-27","status":"publish","type":"issue","link":"https:\/\/xenarthrans.org\/journal\/issue\/xenarthra-27\/","title":{"rendered":"Xenarthra 27"},"content":{"rendered":"\r\n

May 2026<\/h2>\r\n\r\n\r\n\r\n
\r\n
\r\n
\"Dasypus<\/a><\/figure>
\r\n

Cover:<\/strong> Dasypus septemcinctus hybridus<\/em>, Uruguay. Photo: Enrique Gonzalez.<\/p>\r\n<\/div><\/div>\r\n<\/div>\r\n\r\n\r\n\r\n

\r\n
\r\n\r\n<\/div>\r\n\r\n\r\n\r\n

Note that this issue is not yet complete<\/strong>, however the articles below are considered published, since they are published continuously, as soon as they are ready.
Download of all articles as a zipped file will be available once the issue is complete.<\/em><\/p>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n

Contents<\/h3>\r\n\r\n\r\n\r\n
\r\n
<\/th>Abstract<\/th>Type or Section<\/th>OpenGraph image<\/th>Title<\/th>Authors<\/th>DOI<\/th>e-Locator<\/th><\/tr><\/thead>
<\/td>

Roadkill is a significant threat to wildlife conservation, particularly for species with low reproductive rates and specialized feeding behavior, such as anteaters. This study analyzed roadkill records from multiple roads in the Colombian Orinoco region to 1) examine spatiotemporal patterns of Myrmecophaga tridactyla<\/em> and Tamandua tetradactyla<\/em> and 2) evaluate whether mortality rates differ between sexes over time. Between 2013 and 2019, we recorded 346 anteater roadkill events along four major routes across the departments of Casanare, Meta, and Cundinamarca. We estimated roadkill rates for each road, identified roadkill hotspots using Siriema<\/em> software, and used molecular tools to determine the sex ratio of road-killed T. tetradactyla<\/em> to assess the impact of road infrastructure on the species’ sex structure. The Yopal-Pore Route (YPR) and Yopal-Jag\u00fceyes Route (YJR) showed the highest roadkill rates for both species. No significant differences were detected between the rainy and dry seasons. The sex ratio of road-killed individuals was 0.89:1 (males:females), with no significant effect detected for the species. Overall, our results improve understanding of the spatiotemporal dynamics of anteater roadkill in the Colombian Orinoco and can help guide the planning and implementation of effective mitigation strategies in Colombia.<\/p>\n

\n

Patrones espaciotemporales de atropellamientos de osos hormigueros (Pilosa: Myrmecophagidae) en la Orinoqu\u00eda colombiana.<\/strong> Los atropellamientos son una amenaza para la conservaci\u00f3n de la vida silvestre, particularmente para especies con bajas tasas reproductivas y conductas alimentarias especializadas, como los osos hormigueros. Este estudio analiz\u00f3 registros de atropellamientos en m\u00faltiples carreteras de la regi\u00f3n de la Orinoqu\u00eda colombiana para 1) examinar los patrones espaciotemporales de Myrmecophaga tridactyla<\/em> y Tamandua tetradactyla<\/em> y 2) evaluar si las tasas de mortalidad difieren entre sexos a lo largo del tiempo. Entre 2013 y 2019 registramos 346 eventos de atropellamiento de osos hormigueros a lo largo de cuatro rutas principales en los departamentos de Casanare, Meta y Cundinamarca. Estimamos las tasas de atropellamiento para cada v\u00eda, identificamos puntos cr\u00edticos (hotspots<\/em>) de atropellamiento usando el software Siriema<\/em> y, mediante herramientas moleculares, determinamos la proporci\u00f3n de sexos de los individuos de T. tetradactyla<\/em> atropellados para evaluar el impacto de la infraestructura vial sobre la estructura sexual de la especie. Los tramos de la Ruta Yopal-Pore (YPR) y la Ruta Yopal-Jag\u00fceyes (YJR) presentaron las tasas m\u00e1s altas de atropellamiento para ambas especies. No se detectaron diferencias significativas entre las temporadas de lluvias y de sequ\u00eda. La proporci\u00f3n de sexos de los individuos atropellados fue de 0,89:1 (machos:hembras), sin evidenciarse un impacto significativo en la especie. En conjunto, nuestros resultados mejoran la comprensi\u00f3n de la din\u00e1mica espaciotemporal de los atropellamientos de osos hormigueros en la Orinoqu\u00eda colombiana y pueden orientar la planificaci\u00f3n e implementaci\u00f3n de estrategias de mitigaci\u00f3n efectivas en Colombia.<\/p>\n<\/td>

Article<\/td>\"Map<\/a><\/td>Spatiotemporal patterns of roadkill of anteater (Pilosa: Myrmecophagidae) in the Colombian Orinoco region<\/a><\/td>Karen Vargas-Garzon<\/span>, Carmen E. Barrag\u00e1n-Ruiz<\/span>, Karen G. Rodr\u00edguez-Castro<\/span>, Cesar Rojano<\/span><\/td>doi.org\/10.2305\/BMPA7817<\/a><\/td>e2701<\/td><\/tr><\/tbody><\/table>\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n
\r\n
<\/div>\r\n\r\n\r\n\r\n
<\/div>\r\n\r\n\r\n\r\n
<\/div>\r\n<\/div>\r\n","protected":false},"featured_media":1794,"template":"","class_list":["post-1782","issue","type-issue","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/issue\/1782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/issue"}],"about":[{"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/types\/issue"}],"version-history":[{"count":2,"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/issue\/1782\/revisions"}],"predecessor-version":[{"id":1795,"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/issue\/1782\/revisions\/1795"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/media\/1794"}],"wp:attachment":[{"href":"https:\/\/xenarthrans.org\/journal\/wp-json\/wp\/v2\/media?parent=1782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}