Dry season activity periods of some Amazonian mammals

Camera traps as a tool for Carnivore conservation in a mosaic of Protected Areas in the Pantanal wetlands, Brazil

“…Jaguars in Amolar Mountain Ridge exhibited cathemeral behaviour, a pattern different of the observed in other areas of the Pantanal (Crawshaw & Quigley, 1991;Foster et al, 2013). Pumas were also cathemeral, which is consistent with observations of Gómez et al (2005) in Bolivia; although in Argentina, western Bolivia and Chile, pumas are crepuscular (Lucherini et al, 2009). As opportunistic predators, jaguars and pumas feed on a large variety of prey, but they mainly consume medium to large-sized prey (Emmons, 1987;Taber et al, 1997;Núñez et al, 2000;Monroy-Vilchis et al, 2009).…”

“…The mostly nocturnal activity pattern has also been reported for crab-eating foxes in the Chaco-Chiquitano Transitional Forest of Bolivia (Maffei et al, 2002), in northeastern Argentina (Di Bitetti et al, 2009) and in southeastern Brazil (Vieira & Port, 2007). Ocelots were predominantly nocturnal in our study area, as also reported for the Bosque Chiquitano of Bolivia (Maffei et al, 2002), the Bolivian Amazon (Gómez et al, 2005), the Atlantic Forest of Argentina (Di Bitetti et al, 2006), and the Peruvian Amazon (Kolowski & Alonso, 2010). This nocturnal behaviour of ocelot may reflect the activity of their favourite small prey (Bianchi et al, 2014), which also tends to be nocturnal (Emmons, 1987).…”

Overlap in activity patterns between big cats and their main prey in northern Quintana Roo, Mexico

“…Además, se consideraron periodos consecutivos de dos horas para conocer los picos de actividad. Las especies fueron clasificadas de acuerdo a su patrón de actividad, según el criterio de Gómez et al (2005), en diurnas (˂ 15 % de las observaciones fueron en la noche), principalmente diurnas (15 % -35 % de las observaciones fueron en la noche), nocturnas (> 85 % de las observaciones fueron en la noche) y principalmente nocturna (65 -85 % de las observaciones fueron en la noche). Otras categorías consideradas son la catameral (individuos que se encuentran intermitentemente activos tanto de noche como de día) y la de los organismos crepusculares (que se encuentran activos en las primeras horas del amanecer como del atardecer).…”

Mammalian Diversity and Matses Ethnomammalogy in Amazonian Peru Part 2: Xenarthra, Carnivora, Perissodactyla, Artiodactyla, and Sirenia

“…Many other behavioral details, however, are not reported in the literature we consulted, including information about daily movements, geophagy, reptilian predators, and sexual vocalizations. Although the Matses say red brockets are mostly nocturnal, this is perhaps a result of local hunting pressure; at unhunted western Amazonian sites red brockets are often active by day (Gómez et al, 2005;Blake et al, 2013). (Cuvier, 1817) Voucher material (total = 3): Nuevo San Juan (MUSM 11186, 13148), Santa Cecilia (FMNH 86898).…”