PRECISOU DE MUITO ESFORÇO PARA REGISTRAR CATETOS... IT TOOK A LOT OF EFFORT TO REGISTER PECCARIES...
PRECISOU DE MUITO ESFORÇO PARA REGISTRAR CATETOS... IT TOOK A LOT OF EFFORT TO REGISTER PECCARIES...
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DOI: https://doi.org/10.22533/at.ed.705112526031
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Palavras-chave: armadilhas fotográficas, detectabilidade, floresta com araucárias, monitoramento, Pecari tajacu
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Keywords: camera traps, detectability, araucaria forest, monitoring, Pecari tajacu
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Abstract: The collared peccary (Pecari tajacu) is threatened with extinction in RS in the endangered category (Est. Decr. 51.797/2014) due to habitat destruction and fragmentation and hunting. Study area: São Francisco de Paula National Forest (FLONASFP) with an area of 1606.7 ha in the Araucárias Plateau in northeastern RS. Objective: to monitor medium and large mammals. Sampling: camera traps with active sensors and footprint recording. Period: March/1999 to February/2019 (all seasons of the year, 24 hours a day and without bait). Sampled area: 15.81 km². Sampling effort: 26,326 traps-day. Sampling in the high and flat part (1999-2008), on five trails sampled an equal number of times alternately every two months and inclusion of a trail on the hillside (2009-2013). Removal of the trail on the hillside (2014-2019). Success rate of independent photo-captures: 18.9 captures/100 traps-day, reaching 4993 records of 25 species of native wild mammals (≥1 kg). There were 34 independent photo- captures of collared peccaries (0.68%), considered a sporadic species in the area. First record of collared peccaries in 2010 (photo-capture and footprints) on a trail that descends the hillside of a valley. Detection matrices for a closed population (one-month periods) comparing five trails between 2009-2013 revealed captures only on the hillside trail and no detections on the trails in the upper and flat part. From 2014 onwards, the species began to be recorded in the higher and flatter part through photos and footprints. Activity pattern: 72% diurnal; 12% crepuscular and 16% nocturnal. Seasons: 47% winter, 29.5% spring, 14.7% autumn and 8.8% summer. Continuous monitoring has shown the occurrence of Pecari tajacu in FLONASFP, which is another endangered species registered in this Conservation Unit for sustainable use. Valleys in canyon regions can be considered wildlife corridors, where the vegetation has not been destroyed and access for hunters is difficult.
- Rosane Vera Marques
