| Herbivory and fire influence soil and plant nutrient dynamics in Chitwan National Park, Nepal | |
| Kunwar, Amar2; Gelin, Uriel3; Subedi, Naresh4; Regmi, Sandeep2,5,6,7; Tomlinson, Kyle W. | |
| 2025 | |
| Source Publication | GLOBAL ECOLOGY AND CONSERVATION
 |
| ISSN | 2351-9894 |
| Volume | 60Issue:xPages:- |
| Abstract | In the context of global biodiversity loss and climate change, understanding how herbivores and fire shape plant-soil nutrient dynamics across vegetation types has become a global priority. In tropical Asia, the combined effects of herbivore assemblages, fire regimes, and plant community diversity on nutrients remain poorly understood. We investigated how herbivory and fire influence soil nutrients (nitrogen (N), phosphorus (P), potassium (K), and cation exchange capacity (CEC)) and plant nutrients (N, P, K), across five vegetation types-two forests (riverine, Shorea) and three grasslands (tall, short, grazing lawn) in Chitwan National Park, Nepal. Across 50 plots (400 m2 each), we quantified mammalian herbivory pressure using dung counts, fire frequency using satellite data, and analyzed 150 soil and 187 plant samples for nutrient concentrations. Herbivore dung and fire frequency varied markedly across habitats: herbivores were largely absent from tall grasslands while present in all other vegetation types, whereas fires were rare in short grassland and grazing lawns but frequent in tall grassland and forests. Overall, forests had higher soil and plant nutrient concentrations than grasslands. Soil N, K, and CEC increased with increasing dung counts across vegetation types, whereas plant K decreased with increasing dung counts only in Shorea forests and grazing lawns. Soil P and CEC increased, while plant N, P and K decreased with increasing fire frequency across vegetation types. For the two forest types, interactions between dung and fire counts decreased soil P, plant N and plant P in riverine forest but had no effect in Shorea forest. These findings highlight the additive and interactive impacts of herbivory and fire on nutrient cycling, emphasizing the need to manage disturbance regimes to sustain soil fertility, habitat quality, and biodiversity resilience in tropical landscapes. |
| Keyword | GRAZING LAWNS VEGETATION GRASSLANDS DIVERSITY ECOSYSTEM FOREST AVAILABILITY IMPACTS CARBON PRODUCTIVITY |
| Subject Area | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| DOI | 10.1016/j.gecco.2025.e03610 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001490125400001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/14773 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.[Kunwar, Amar; Tomlinson, Kyle W.] Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 2.Kunwar, Amar; Tomlinson, Kyle W.] Xishuangbanna Trop Bot Garden, Yunnan Key Lab Conservat Trop Rainforests & Asian, Mengla 666303, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Aarhus Univ, Ctr Biodivers Dynam Changing World BIOCHANGE, Dept Biol, Sect Ecoinformat & Biodivers, Aarhus, Denmark 5.Natl Trust Nat Conservat, POB 3712, Lalitpur 44700, Nepal 6.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Mengla 666303, Yunnan, Peoples R China 7.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 8.Himalayan Conservancy, Kathmandu, Nepal |
| Recommended Citation GB/T 7714 | Kunwar, Amar,Gelin, Uriel,Subedi, Naresh,et al. Herbivory and fire influence soil and plant nutrient dynamics in Chitwan National Park, Nepal[J]. GLOBAL ECOLOGY AND CONSERVATION,2025,60(x):-. |
| APA | Kunwar, Amar,Gelin, Uriel,Subedi, Naresh,Regmi, Sandeep,&Tomlinson, Kyle W..(2025).Herbivory and fire influence soil and plant nutrient dynamics in Chitwan National Park, Nepal.GLOBAL ECOLOGY AND CONSERVATION,60(x),-. |
| MLA | Kunwar, Amar,et al."Herbivory and fire influence soil and plant nutrient dynamics in Chitwan National Park, Nepal".GLOBAL ECOLOGY AND CONSERVATION 60.x(2025):-. |
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| Herbivory and fire i（5672KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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