Daily activity patterns and habitat use of the lowland tapir (Tapirus terrestris) in the Atlantic Forest

Cruz, Paula; Paviolo, Agustin Javier; Bó, Roberto Fabián; Thompson, Jeffrey J.; Bitetti, Mario S. Di

doi:10.1016/j.mambio.2014.06.003

Cited by 42 publications

(35 citation statements)

References 47 publications

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“…Therefore, estimates of the proportion of time animals are active within the vertical range of CTs will be required to avoid negatively biased b D. Ideally, this proportion would be estimated from data collected concurrently with the distance data to ensure it is representative. Fortunately, the temporal distribution of camera trap detections is informative regarding animal activity patterns (Lynam et al 2013;Cruz et al 2014;Rowcliffe et al 2014). If it is reasonable to assume that the entire population is available for detection for any part of each day, additional data would not be required to estimate b D accurately, because we could either (i) analyse only the data collected at that time, censoring effort and distance data from other times, or (ii) estimate the overall proportion of time active directly from the CT data (e.g.…”

Section: Discussionmentioning

confidence: 99%

Distance sampling with camera traps

et al. 2017

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* Reliable estimates of animal density and abundance are essential for effective wildlife conservation and management. Camera trapping has proven efficient for sampling multiple species, but statistical estimators of density from camera trapping data for species that cannot be individually identified are still in development. * We extend point-transect methods for estimating animal density to accommodate data from camera traps, allowing researchers to exploit existing distance sampling theory and software for designing studies and analysing data. We tested it by simulation, and used it to estimate densities of Maxwell's duikers (Philantomba maxwellii) in Taï National Park, Côte d'Ivoire. * Densities estimated from simulated data were unbiased when we assumed animals were not available for detection during long periods of rest. Estimated duiker densities were higher than recent estimates from line transect surveys, which are believed to underestimate densities of forest ungulates. * We expect these methods to provide an effective means to estimate animal density from camera trapping data and to be applicable in a variety of settings

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Section: Discussionmentioning

confidence: 99%

Distance sampling with camera traps

et al. 2017

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“…The native forest must be preserved in order to ensure the availability of suitable habitat for the small‐ and medium‐sized felids and other wildlife of Misiones (e.g., jaguars and pumas, Paviolo et al. (, ), De Angelo, Paviolo, Wiegand, Kanagaraj and Di Bitetti (); tapirs, Cruz, Paviolo, Bó, Thompson and Di Bitetti (); red brocket deer, Di Bitetti, Paviolo, Ferrari, De Angelo and Di Blanco ()). In addition, conversion of the unprotected native forest to other types of land use, mainly crops, would imply a significant loss of optimal habitat for these species.…”

Section: Discussionmentioning

confidence: 99%

Cats under cover: Habitat models indicate a high dependency on woodlands by Atlantic Forest felids

et al. 2019

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Four Neotropical small and medium felids—the ocelot, jaguarundi, margay, and southern tiger cat—have overlapping geographic distributions in the endangered Atlantic Forest. Local studies show that these felids avoid areas with high human impact, but the three smaller ones use human‐modified areas more frequently than do ocelots. To understand how landscape changes affect the habitat distribution of these four felids in the Atlantic Forest of Argentina, we used maximum entropy models to analyze the effect of environmental and anthropogenic factors. We estimated niche breadth and overlap among these felids. The conversion of the native forest to land uses without trees was the most important variable that determined the habitat distribution of the four species. For all four species, the optimal habitat covered about 1/3 of the study area and corresponds mainly to the native forest areas. Nearly 50% of these areas had some level of protection. The niche width was higher for the small felids than for ocelots. Niche overlap was high for all species pairs, but higher among the small felids and lower for each of these with the ocelot. The four felids were negatively affected by native forest loss, with ocelots being more sensitive than the smaller felids. The conversion of unprotected forest areas to other types of land uses would imply a greater habitat loss for these felids. The protection of current remnants of Atlantic Forest in Argentina is important for the long‐term conservation of the four felids. Abstract in Spanish is available with online material.

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“…El uso de hábitat del tapir incrementa con el incremento en la protección contra cacería y el incremento en la distancia a puntos de acceso para cazadores (Cruz et al 2014), por lo tanto, la relación negativa de la distancia a poblados (β = -0.63) puede reflejar la baja presión de cacería para esta especie. Esto coincide con que el tapir no se reportó como una de las especies de cacería de subsitencia en las comunidades del PNNT (Martinez-Salas et al 2016) y en la RNNP el aprovechamiento fue muy bajo con una frecuencia de 1.4 individuos por año (Tafur 2010).…”

Section: Discussionunclassified

“…Por su parte, el tapir de tierras bajas tampoco se ve afectado por la inundación de los bosques, ya que usa tanto el bosque inundadable como el de tierra firme, aunque muestra preferencia por el primero (Bodmer 1990;Salas 1996;Tobler et al 2009). De igual forma, aunque el tapir puede estar presente o usar varios tipos de cobertura, siempre muestra tener como hábitat óptimo el bosque continuo ) y el uso de hábitat se incrementa con el incremento en la protección contra la cacería (Cruz et al 2014).…”

Section: Introductionunclassified

Abundance variation of ungulates in two protected areas of the Colombian Guayana estimated with occupancy models

Gómez

Montenegro

Sánchez-Palomino

2016

Therya

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Six ungulate species inhabit the Colombian Guiana Shield, a patchily-distributed biogeographic region characterized by poor nutrient soils and by harboring the only forest in Colombia growing on a Precambrian surface. In Colombia, two protected areas are located on the Colombian Guiana Shield, the Tuparro National Natural Park (PNNT, for its Spanish initials) and the Puinawai National Natural Reserve (RNNP, for its Spanish initials), which have a large difference in the configuration and availability of native forest. These ungulates are three deer species (Odocoileus virginianus, Mazama americana and M. nemorivaga), two peccary species (Pecari tajacu and Tayassu pecari) and one tapir specie (Tapirus terrestris). The aims of this study were to estimate and compare the abundance of those six ungulate species in two protected areas located within the Guiana Shield region in Colombia and analyze the relationship with the landscape forest amount and distance to human settlements. The study sites were in PNNT where the landscape is dominated by natural savannas mixed with riparian forests, and RNNP covered by tropical forests. We estimated the relative abundance of each ungulate species using repeated presence-absence data with the occupancy model with heterogeneous detection of Royle and Nichols (2003). Presence detection was obtained from both direct observations and tracks. The direct sightings and tracks we sampled along six transects in PNNT and nine in RNNP (244.4 km at PNNT and 257 km at RNNP) and track plots of 0.25 m 2 (211 at PNNT and 297 at RNNP). The relative abundance of tapir, collared peccary (P. tajacu) and brocket deer (Mazama spp.) were different between protected areas; we found no differences in the white-lipped peccary abundance (T. pecari). Relative abundance estimation was higher at RNNP for tapirs and brocket deers. In contrast, collared peccary was more abundant in the PNNT. There was positive effect of floodplain forest area abundance of white-lipped peccary. The distance to human settlements had positive effect on collared peccary abundance and negative effect on tapir and white tailed deer (O. virginianus). The higher abundance in the RNNP for tapirs and Mazama spp., brocket deer was unrelated to the forest area, so the difference may be related to local habitat conditions. The white-lipped peccary is sensitive to the forest area in the landscape, but has also been found that riparian forests act as natural corridors. Failure to find differences in abundance can be an indicator of the high habitat quality for these species. The collared peccary has been positively associated to a moderate degree of subdivision of forest at landscape (number of patchs), which could explain the higher abundance in the PNNT. The positive relationship of white-lipped peccary with the floodplain forest coincides with the patterns observed in other Amazonian areas. Finally, the negative effect of the distance from settlements for brocket deer and tapir may be related to low hunting pressure on these species, con...

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Daily activity patterns and habitat use of the lowland tapir (Tapirus terrestris) in the Atlantic Forest

Cited by 42 publications

References 47 publications

Distance sampling with camera traps

Distance sampling with camera traps

Cats under cover: Habitat models indicate a high dependency on woodlands by Atlantic Forest felids

Abundance variation of ungulates in two protected areas of the Colombian Guayana estimated with occupancy models

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