Interactions between terrestrial mammals and the fruits of two neotropical rainforest tree species

Camargo–Sanabria, Angela A.; Mendoza, Eduardo

doi:10.1016/j.actao.2016.02.005

Cited by 31 publications

(15 citation statements)

References 37 publications

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“…The Baird's tapir (Tapirella bairdii, or usually known as Tapirus bairdii, see: Ruiz-Garcia et al 2012, we use Tapirella in this study) is the largest terrestrial mammal of the Neotropics (Emmons and Feer 1997) and plays an important role in the forest dynamics through seed dispersal and predation (O´Farrill et al 2013;Camargo-Sanabria and Mendoza 2016). Currently, the tapir is listed as endangered both globally (International Union for the Conservation of Nature) and in México (NOM-059-ECOL-2010; SEMARNAT 2010) mainly due to uncontrolled hunting and habitat loss and fragmentation.…”

Section: Introductionmentioning

confidence: 99%

Moon light and the activity patterns of Baird’s tapir in the Calakmul region, Southern México

Sánchez-Pinzón

Reyna-Hurtado

Meyer

2020

Therya

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The Baird's tapir (Tapirella bairdii) is an endangered species throughout its distribution area, however many aspects of its biology and ecology have been poorly studied, due to its evasive behavior and low densities. The goal of this study was to evaluate the activity patterns of T. bairdii, a large ungulate species from the Neotropics, in relation to moon phases in two sites with different degree of human perturbation: the Calakmul Biosphere Reserve (CBR) and the Nuevo Becal (NB) community. We monitored twenty waterbodies in each site for 18 months using camera traps. The photographic capture rate (CR) and the corresponding moon phases for both sites were recorded. The CR of T. bairdii was 0.054 in NB and 0.029 in CBR. T. bairdii was more active at night and dawn-twilight periods. In general, T. bairdii showed major activity during the dark moon phases but the differences with the light phases were not statistically significant. However, we found a trend of tapirs to be more active in dark nights and in the darkest hours in NB than CBR. The apparent preferences for dark nights in NB could be caused by the perturbation caused by human activities at site, which may have influenced the behavior of the tapir that avoid moving out in periods of abundant light in disturbed sites. More research is needed to confirm this finding.El tapir de Baird (Tapirella bairdii) es una especie amenazada en toda su área de distribución, sin embargo, muchos aspectos de su biología y ecología han sido poco estudiados, debido a su comportamiento evasivo y a sus bajas densidades poblacionales. El objetivo de este estudio fue evaluar los patrones de actividad de T. bairdii en relación con las fases lunares en dos sitios con diferente grado de perturbación humana: la Reserva de la Biosfera de Calakmul (RBC) y el Ejido Nuevo Becal (NB). Se monitorearon 20 cuerpos de agua durante18 meses mediante el método de foto-trampeo. Se determinó la tasa de captura (TC) y se registraron las fases lunares correspondientes para ambos sitios. La TC de T. bairdii tapir fue de 0.054 en NB y de 0.029 en la RBC. T. bairdii fue más activo en el periodo nocturno-crepuscular. En general, T.bairdii. mostro una actividad importante durante las fases de oscuridad, pero estas diferencias no fueron significativas estadísticamente. Sin embargo, se encontró una tendencia de los tapires a moverse activamente en las noches y en las horas más obscuras en NB que en RBC. La preferencia aparente por las noches más obscuras en NB podría ser evidencia de la respuesta por parte de los tapires a la perturbación causada por actividades humanas en ese sitio, mostrando un cambio en su comportamiento evitando salir en periodos de abundante luz en sitios perturbados. Sin embargo, se requiere de mayor investigación para corroborar esta posibilidad.

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Section: Introductionmentioning

confidence: 99%

Moon light and the activity patterns of Baird’s tapir in the Calakmul region, Southern México

Sánchez-Pinzón

Reyna-Hurtado

Meyer

2020

Therya

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“…Mammals are a good indicator of ecosystem quality or change, given their diversity and the complexity of ecological niches they occupy [ 25 ]. Mammals are also important for their role in ecosystem processes, benefits to humans[ 26 ][ 27 ][ 28 ]and their intrinsic and cultural value [ 29 ]. At the same time, mammals are one of the most globally threatened taxonomic groups due to habitat loss and fragmentation arising mostly as a product of agricultural expansion [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Terrestrial mammal responses to oil palm dominated landscapes in Colombia

et al. 2018

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The rapid expansion of oil palm cultivation in the Neotropics has generated great debate around possible biodiversity impacts. Colombia, for example, is the largest producer of oil palm in the Americas, but the effects of oil palm cultivation on native fauna are poorly understood. Here, we compared how richness, abundance and composition of terrestrial mammal species differ between oil palm plantations and riparian forest in the Colombian Llanos region. Further, we determined the relationships and influence of landscape and habitat level variables on those metrics. We found that species richness and composition differed significantly between riparian forest and oil palm, with site level richness inside oil palm plantations 47% lower, on average, than in riparian forest. Within plantations, mammalian species richness was strongly negatively correlated with cattle abundance, and positively correlated with the density of undergrowth vegetation. Forest structure characteristics appeared to have weak and similar effects on determining mammal species richness and composition along riparian forest strips. Composition at the landscape level was significantly influenced by cover type, percentage of remaining forest and the distance to the nearest town, whereas within oil palm sites, understory vegetation, cattle relative abundance, and canopy cover had significant effects on community composition. Species specific abundance responses varied between land cover types, with oil palm having positive effects on mesopredators, insectivores and grazers. Our findings suggest that increasing habitat complexity, avoiding cattle and retaining native riparian forest–regardless of its structure–inside oil palm-dominated landscapes would help support higher native mammal richness and abundance at both local and landscape scales.

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“…La deforestación, la fragmentación y en general los cambios en la vegetación a causa de las actividades humanas han influido en los procesos ecológicos y en las interacciones entre especies de flora y fauna silvestres como la competencia, depredación, herbívoría y frugivoría (Rodríguez-Rojas, 2005). Aunado a ello, el cambio de uso del suelo para la producción agropecuaria y la caza indiscriminada de especies han producido cambios importantes en las poblaciones de mamíferos y otras especies de fauna silvestre (Camargo-Sanabria y Mendoza, 2016;Naranjo, 2000).…”

Section: Introductionunclassified

Ecología alimentaria del tepezcuintle (Cuniculus paca) en áreas conservadas y transformadas de la Selva Lacandona, Chiapas, México.

et al. 2018

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Interactions between terrestrial mammals and the fruits of two neotropical rainforest tree species

Cited by 31 publications

References 37 publications

Moon light and the activity patterns of Baird’s tapir in the Calakmul region, Southern México

Moon light and the activity patterns of Baird’s tapir in the Calakmul region, Southern México

Terrestrial mammal responses to oil palm dominated landscapes in Colombia

Ecología alimentaria del tepezcuintle (Cuniculus paca) en áreas conservadas y transformadas de la Selva Lacandona, Chiapas, México.

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