Cambios demograficos en poblaciones de primates de la region sur de Los Tuxtlas, Mexico: analisis longitudinal 1985–2008

García, Brenda Solórzano; Luna, Ernesto Rodríguez

doi:10.1896/044.017.0107

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…The managed habitat in this study contains many cattle (it serves land owners as both pasture land and a seldom-harvested orange orchard) and is situated close to the community of Laguna Escondida. Despite the presence of small mammals (Flores et al 2014) and howler monkeys (García and Luna 2010) in the forested property of the Los Tuxtlas Biological Station, the high density of cattle in the managed habitat and close proximity to human populations helps to explain the distribution of this genus of mosquito. Changes in predator species assemblage may also explain higher abundances of mosquitoes in the managed system; based on larval morphology, size, and foraging behaviors, it is likely that benthic Tanypodinae are less adept at predating mosquito larvae than odonates (Hildrew et al 1985).…”

Section: Discussionmentioning

confidence: 99%

“…Because Los Tuxtlas is the northernmost range limit of many Neotropical organisms, it is an exceedingly important site to monitor (Cayuela et al 2006;Estrada and Coates-Estrada 1997). Between 1967 and1986, Los Tuxtlas lost 84 % of its original forest area (Dirzo and Garcia 1992), and while deforestation rates have decreased since its designation as a Biosphere reserve in 1998 (Vaca et al 2012), the effects of dramatic deforestation are still rampant (Díaz et al 2010;García and Luna 2010).…”

Section: Introductionmentioning

confidence: 99%

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Land management impacts on tree hole invertebrate communities in a Neotropical rainforest

2015

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The Los Tuxtlas Biosphere Reserve in Southeastern Veracruz, Mexico represents the northernmost Neotropical lowland rainforest and has lost 84 % of its forests in the last forty years. Rich terrestrial and aquatic species communities are found throughout Neotropical forests, habitats increasingly threatened by land management practices. Plant-held waters, phytotelmata, are ecologically important discrete microhabitats harboring many specialist invertebrates and are abundant in tropical forests. In this study, using artificial tree holes, we examined invertebrate tree hole communities in a mature forest of Los Tuxtlas and in a managed habitat adjacent to the Los Tuxtlas Biological Station. Based on the proximity of human and livestock communities to managed habitats and the dispersal limitations of some phytotelmata specialists, we expected to find community composition differences between the two habitats. We found distinct differences in chironomid colonization; Tanypodinae, a predaceous subfamily, was present in the managed habitat and its omnivorous counterpart, Chironominae, was present in the forest. We found differences in mosquito colonization with more predaceous Toxorhychites in the managed habitat. Haemagogus mosquitoes were only present in the managed habitat.These results indicate different colonization ability across phytotelmata specialists and warn of larger community shifts and potential public health hazards with continued and intensified forest fragmentation and degradation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Land management impacts on tree hole invertebrate communities in a Neotropical rainforest

2015

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Forest maturity has a stronger influence on the prevalence of spider monkeys than howler monkeys in an anthropogenically impacted rainforest landscape

et al. 2022

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The transformation and depletion of primary forest over the past few decades have placed almost half of the world’s primate species under the threat of extinction. Developing any successful conservation program for primates requires distribution and demography data, as well as an understanding of the relationships between these factors and their habitat. Between March and June 2010 and 2011 we collected data on the presence and demographic parameters of howler and spider monkeys by carrying out surveys, and validated our findings using local knowledge. We then examined the relationship between forest type and the presence of these primates at 54 sites in the northern area of the Selva Zoque Corridor, Mexico. We detected 86 spider monkey groups across 31 plots and censused 391 individuals (mean ± SD = 5.9 ± 3.0 individuals per sub-group, n = 67 sub-groups). We also detected 69 howler monkey groups across 30 plots and censused 117 individuals (mean ± SD = 5.3 ± 2.4 individuals per group, n = 22 groups). Howler monkey presence was not related to any specific vegetation type, while spider monkeys were present in areas with a higher percentage of tall forest (trees > 25 m high). Overall, spider monkeys were more prevalent than howler monkeys in our sampling sites and showed demographic characteristics similar to those in better protected areas, suggesting that the landscape features in the Uxpanapa Valley are suitable for their needs. Conversely, howler monkey presence was found to be more limited than in other regions, possibly due to the extended presence of spider monkeys.

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The Primate Cultural Significance Index: applications with Popoluca Indigenous people at Los Tuxtlas Biosphere Reserve

Pinto-Marroquin

Aristizabal

Valle

et al. 2021

J Ethnobiology Ethnomedicine

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Background The study of the cultural significance (CS) of biodiversity provides key information to develop conservation strategies consistent with traditions and perceptions of human communities. In Los Tuxtlas Biosphere Reserve (TBR) in Mexico, the mantled howler monkeys (Alouatta palliata mexicana) and the black-handed spider monkeys (Ateles geoffroyi vellerosus) have historically coexisted with Popoluca Indigenous Peoples. This study sought to determine how the presence of a natural protected area (TBR location) and a range of sociodemographic factors (gender, age, origin, language proficiency, education level, religion) relate to the CS held by the Popoluca Indigenous People in relation to these two endangered primate species. Methods The first Primate Cultural Significance Index (PCSI) was designed as a composed index of 11 cultural variables (sub-indices) and was applied randomly to a representative size sample of people over 15 years old in two Popolucas communities, one within the TBR (Piedra Labrada = 81 people) and another outside (Los Mangos = 91). U Mann–Whitney tests were used to compare the PCSI between communities and Generalized Linear Models (GLM) to evaluate the sociodemographic factors of participants that influenced the sub-indices in the PCSI. Results The cultural significance of spider monkeys held by the Popolucas was higher for the community within the TBR than for the community outside, while for howler monkeys it was higher outside. For both primate species across the two communities, the most relevant sub-indices were (1) interest in conservation and (2) touristic significance of primates. Sociodemographic factors of participants influenced nine sub-indices of cultural significance out of the possible 10 sub-indices applied for each primate species. The demographic factors that most influenced each sub-index for both species were location and gender. Conclusions The main differences found between communities may be linked to the conservation and sustainable development programs promoted by the reserve, as well as the greater persistence of Popolucan ancestral traditions within the boundaries of the reserve. We recommend that conservation efforts should focus on people less interested about primate conservation (women, non-natives and residents outside the reserve), and turn to the leadership of people more interested (native men who reside inside the reserve).

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Cambios demograficos en poblaciones de primates de la region sur de Los Tuxtlas, Mexico: analisis longitudinal 1985–2008

Cited by 4 publications

References 11 publications

Land management impacts on tree hole invertebrate communities in a Neotropical rainforest

Land management impacts on tree hole invertebrate communities in a Neotropical rainforest

Forest maturity has a stronger influence on the prevalence of spider monkeys than howler monkeys in an anthropogenically impacted rainforest landscape

The Primate Cultural Significance Index: applications with Popoluca Indigenous people at Los Tuxtlas Biosphere Reserve

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