Habitat Selection by Collared Peccaries in Trans-pecos Texas

Green, M. Clay; Harveson, Louis A.; Loomis, Lynn E.

doi:10.2307/3672541

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…Primary and secondary forest effects.-Peccaries do not exhibit habitat preference between primary and secondary forest at La Selva, which is consistent with previous studies Reyna-Hurtado and Tanner 2005;Tobler et al 2009). Collared peccaries do show a preference for areas with canopy cover (Green et al 2001), and an aversion to farmlands (Tejeda-Cruz et al 2009). Hunting pressure also has an effect on habitat choice (Reyna-Hurtado and Tanner 2005).…”

Section: Discussionsupporting

confidence: 86%

Group dynamics, behavior, and current and historical abundance of peccaries in Costa Rica's Caribbean lowlands

Romero

O’Neill

Timm

et al. 2013

Journal of Mammalogy

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The abundances and habitat preferences of peccaries in Neotropical forests are important to understand because these keystone species influence many aspects of the ecosystem. In the Caribbean lowlands of Costa Rica, we conducted walking surveys for~2 years to study the behavior and population trends of collared peccaries (Pecari tajacu), and found that peccaries are abundant at La Selva Biological Station and overall, detection rates were relatively constant through time. A stable estimate of detection rates was achieved only after 7-9 months of surveying. We found no habitat preferences between primary and secondary forest, yet there were some differences in group dynamics-group radius was larger and sighting distance was greater in primary forest, whereas the number of singletons was higher in secondary forest. More peccaries were seen closer to the laboratory clearing than at greater distances, for a variety of probable reasons: habituation to humans, lower predation and hunting pressure, and various environmental and habitat factors. Peccary groups had spatially clumped distributions across the landscape and were more active diurnally than nocturnally. Collared peccary densities are relatively high at La Selva compared to other Neotropical sites, with the exception of Barro Colorado Island. We combined our data with a review of the historical literature to assess changes in the populations of peccaries in the Caribbean lowlands. We found that collared peccaries have likely increased in abundance at La Selva, seemingly a few years after the extirpation of white-lipped peccaries (Tayassu pecari), which were abundant in the area 40-50 years ago. An understanding of the group dynamics, behavior, and habitat preference of collared peccaries is essential for management decisions and conservation efforts. Additionally, assessment of population changes should be carefully considered in a historical context, with a particular focus on how the populations of the 2 peccary species have changed, and how these species might differentially affect their environment.

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Section: Discussionsupporting

confidence: 86%

Group dynamics, behavior, and current and historical abundance of peccaries in Costa Rica's Caribbean lowlands

Romero

O’Neill

Timm

et al. 2013

Journal of Mammalogy

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“…This situation is most likely the main reason for the changes in activity patterns and increase of temporal overlap found for the collared and white-lipped peccaries in the dry season. The seasonal activity change found for the collared peccaries is consistent with results obtained in the arid regions of the southwestern USA, where this species tends to increase its (Bigler 1974;Bissonette 1978;Donkin 1985;Eddy 1961;Green et al 2001;Ilse and Hellgren 1995;Sowls 1997;Zervanos and Day 1977;Zervanos and Hadley 1973). Eddy (1961) considered collared peccaries to be daytime foragers, with a strong tendency to react to temperature because of their prolonged activity during the day under mild winter temperatures and their restriction of foraging to early morning and late afternoon on hot summer days.…”

Section: Activity Pattern and Thermal Nichesupporting

confidence: 87%

Implications of climatic seasonality on activity patterns and resource use by sympatric peccaries in northern Pantanal

et al. 2015

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We evaluated the effects of climate seasonality from a thermal and water availability perspective on the activity patterns and resource use of Pecari tajacu and Tayassu pecari during wet and dry seasons in the northeastern Brazilian Pantanal. We used camera traps and temperature sensors to record species activity patterns in relation to temperature, established five habitat categories based on flooding intensity and local vegetation characteristics, assessed the activity patterns of each species in dry and wet periods and in artificial water bodies using circular statistical metrics, and calculated niche amplitude and overlap on three axes (temperature, time, and habitat) in both periods. Peccaries shared a strong resemblance in resource use and in their responses to seasonal variations in the tested gradients. The activity patterns of both species exhibited a significant correlation with air temperature on all the evaluated measures, and both species strongly reduced their activity when the air temperature exceeded 35 °C. High temperatures associated with low water availability were most likely responsible for the changes in species activity patterns, which resulted in an increased temporal overlap in habitat use throughout the dry season. However, the peccaries avoided intensively flooded habitats; therefore, the habitat gradient overlap was greater during the wet period. Our results show that an increase in niche overlap on the environmental gradient as a result of climatic seasonality may be partially compensated by a reduction in other niche dimensions. In this case, temporal partitioning appears to be an important, viable mechanism to reduce competition by potentially competing species.

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“…Tapirus bairdii (tapir) 120 to 140 (SD = 72.7, 95% minimum convex polygon) Keuroghlian, Eaton, and Longland (2004) 165 ha (SD = 14, 95% minimum convex polygon) Green et al (2001) 64-109 ha (95% minimum convex polygon)…”

Section: Appendix T a B L E A 1 Species Of Wild Mammals Selected To Develop A Projection Model Of The Capacity Of Biological Corridorsmentioning

confidence: 99%

Ecological corridors in Costa Rica: An evaluation applying landscape structure, fragmentation‐connectivity process, and climate adaptation

Beita

Murillo

Alvarado

2021

Conservat Sci and Prac

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In recent years, ecological corridors have been proposed on a global scale as a response to the accelerated process of natural ecosystem fragmentation, mainly as a result of human impact. In accordance with this trend, Costa Rica has undergone a process of implementing ecological corridors as to promote ecological connectivity since the 1990s, with the establishment of 44 ecological corridors covering 38% of Costa Rica's territory. Nevertheless, there is no research evaluating these corridors on a national scale that takes into account their functions as conduits, barriers, and habitats. Thus, the objective of this research was to describe the process of biological corridor formation in Costa Rica, and to evaluate the potential effectiveness of corridors by considering aspects of landscape structure and ecological processes related to connectivity and fragmentation. We used the National Program of Ecological Corridors database along with coverage analysis from Landsat images from 2000 and 2015.The composition of the biological corridors was determined at the landscape scale and related to potential to maintain a specific population of wild mammals weighing more than 10 kg. The composition of the ecological corridors was highly variable in terms of total area, proportion of natural habitat, and fragmentation process. Most biological corridors are capable of maintaining viable populations of Pecari tajacu and Tapir bairdii, while none could maintain populations of Panthera onca and Tayassu pecari. Only 50% of the biological corridors had improved in their connectivity. Therefore, public policies, such as master plans focusing on ecosystem restoration must be established. In addition, only two biological corridors incorporate the majority of elevation ranges (Life Zones) present in the country, which reduces the potential of the corridor system as a tool for climate change adaptation.

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Habitat Selection by Collared Peccaries in Trans-pecos Texas

Cited by 6 publications

References 16 publications

Group dynamics, behavior, and current and historical abundance of peccaries in Costa Rica's Caribbean lowlands

Group dynamics, behavior, and current and historical abundance of peccaries in Costa Rica's Caribbean lowlands

Implications of climatic seasonality on activity patterns and resource use by sympatric peccaries in northern Pantanal

Ecological corridors in Costa Rica: An evaluation applying landscape structure, fragmentation‐connectivity process, and climate adaptation

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