Study on dietary diversity and monthly overlap of François’ langur in a fragmented habitat in Fusui, Guangxi, China

Youbang, 李友邦 Li; Shiyi, 陆施毅 Lu; Li, 苏丽 Su

doi:10.5846/stxb201307011809

Cited by 4 publications

(7 citation statements)

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“…Moreover, the gut microbiota of the langurs reaches an equilibrium in response to the food availability in the forest after transient fluctuations. The langurs in our study preferred a steady supply of several foods ( 41 ), as did the sympatric white-headed black langurs ( 45 ). The François’ langurs shared a similar dietary composition across seasons ( 41 ), probably accounting for their relative stability in maintaining the dominant bacterial taxa.…”

Section: Discussionmentioning

confidence: 79%

“…The langurs in our study preferred a steady supply of several foods ( 41 ), as did the sympatric white-headed black langurs ( 45 ). The François’ langurs shared a similar dietary composition across seasons ( 41 ), probably accounting for their relative stability in maintaining the dominant bacterial taxa. Similar host coevolution with gut microbiota is found in other primates ( 9 , 10 , 31 ), such as the gut microbiota of black howler monkeys, which provide an effective energy buffer for the hosts with resource fluctuations without requiring behavioral reactions ( 41 ).…”

Section: Discussionmentioning

confidence: 79%

“…The absence of significant seasonal differences in the top five dominant phyla (with a proportion of more than 98%) may be the digestive strategy adopted by the langurs in response to a high proportion of leaves in diets ( 30 , 41 ). Furthermore, Firmicutes that efficiently ferment cellulose maintain relative stability across seasons include some taxa that specialize in decomposing the leaves from several major plant species, such as Oscillospiraceae , Christensenellaceae , and Lachnospiraceae ( 8 , 18 , 34 ).…”

Section: Discussionmentioning

confidence: 99%

“…The François’ langurs shared a similar dietary composition across seasons ( 41 ), probably accounting for their relative stability in maintaining the dominant bacterial taxa. Similar host coevolution with gut microbiota is found in other primates ( 9 , 10 , 31 ), such as the gut microbiota of black howler monkeys, which provide an effective energy buffer for the hosts with resource fluctuations without requiring behavioral reactions ( 41 ). This suggests that energy resupply produced by the gut microbiota contributes to species adaptation to seasonal diet changes without changing behavioral patterns.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Gut Microbiota Stability and Flexibility as a Response to Seasonal Variation in the Wild François’ Langurs (Trachypithecus francoisi) in Limestone Forest

Liu

Liang

et al. 2023

Microbiol Spectr

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of Gut Microbiota Stability and Flexibility as a Response to Seasonal Variation in the Wild François’ Langurs (Trachypithecus francoisi) in Limestone Forest

Liu

Liang

et al. 2023

Microbiol Spectr

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“…This is much larger than the abundance in Fusui of 70 species/ ha (DBH ≥1.2 cm; Li et al, 2015). Thus, even though the habitats are extremely fragmented, many of the fragmented habitats may act as safe havens, where relatively rich vegetation conditions are preserved locally.…”

Section: Relative Density S-indexd Cmentioning

confidence: 96%

Feeding adaptation of François' langurs (Trachypithecus francoisi) to the fragmented limestone habitats in Southwest China

Yao,

Huang,

Zhao

et al. 2024

Ecology and Evolution

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Limestone forests are an unusual habitat for primates, especially fragmented limestone habitats. However, while some research has been conducted on François' langurs (Trachypithecus francois) in these habitats, there is still a need to improve the understanding of their behavioral adaptations to the fragmented limestone habitat. We collected data on the diet of François' langurs in a fragmented limestone habitat in Encheng National Nature Reserve, southwestern Guangxi, China using instantaneous scanning sampling, and their feeding adaptations to the fragmented forest were examined. The results indicated that a total of 101 species of plants were consumed by the langurs. They also fed on two non‐plant components, including cliff minerals and at least one species of insect. The langurs ate a higher number of food species in Encheng when compared with the other geographic populations, and they maintained a high level of food diversity and ate more vines. Moreover, they were highly selective in their use of vegetation in their home range, and fewer plants provided a high‐quality food source. During the season when food resources were scarce, the consumption of fruits and young leaves decreased as their availability decreased. This led to the use of other food components, such as mature leaves and seeds. The findings support that François' langurs adjust their feeding behavior to cope with seasonal and micro‐variations in their dietary requirements and to adapt to their particular environment.

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Predicting the potential distribution change of the endangered Francois' langur (Trachypithecus francoisi) across its entire range in China under climate change

Wan,

Li,

Zhou

et al. 2024

Ecology and Evolution

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The Francois' langur (Trachypithecus francoisi) is a rare primate species indicated as endangered and distributed in karst areas in northern Vietnam and southwestern China. However, research limited to specific nature reserves or sites has hampered holistic conservation management. A comprehensive map of the potential distribution for the Francois' langur is essential to advance conservation efforts and ensure coordinated management across regions. Here, we used 82 occurrence records of Francois' langur surveyed in Guangxi, Guizhou, and Chongqing from 2017 to 2020, along with 12 environmental variables, to build the potential habitat model under current and future climate (2030, 2050, 2070, and 2090s) using maximum entropy models (MaxEnt). Our results indicated that (1) precipitation‐ and temperature‐associated bioclimatic variables contributed the most to the distribution of Francois' langur. Vegetation, water sources, and anthropogenic variables also affected its distribution; (2) a total of 144,207.44 km2 of potential suitable habitat across the entire range in China was estimated by the current model. Moderate‐ and high‐suitability habitats accounted for only 23.76% (34,265.96 km2) of the predicted suitable habitat and were mainly distributed in southwest Guangxi, east of Chongqing, and the border between Guizhou and Chongqing; (3) the suitable habitats of Francois' langur will contract considerably under future climate change, and the habitat centroid will move in the southeast direction with a shifting distance of approximately 2.84 km/year from current to 2100. The habitat prediction of Francois' langur and the main drivers proposed in this study could provide essential insights for the future conservation of this endangered species. The existing distribution areas should be monitored and protected, but conservation beyond existing habitats should also be a focus of effort, especially in future expansion areas. This would ensure effective and timely protection under climate change and anthropogenic pressures.

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Study on dietary diversity and monthly overlap of François’ langur in a fragmented habitat in Fusui, Guangxi, China

Cited by 4 publications

References 0 publications

Evaluation of Gut Microbiota Stability and Flexibility as a Response to Seasonal Variation in the Wild François’ Langurs (Trachypithecus francoisi) in Limestone Forest

Evaluation of Gut Microbiota Stability and Flexibility as a Response to Seasonal Variation in the Wild François’ Langurs (Trachypithecus francoisi) in Limestone Forest

Feeding adaptation of François' langurs (Trachypithecus francoisi) to the fragmented limestone habitats in Southwest China

Predicting the potential distribution change of the endangered Francois' langur (Trachypithecus francoisi) across its entire range in China under climate change

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