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Trophic niche and adaptation in highland lizards:sex has greater influences than species matching

Integrative Zoology 2024年第3期19卷 564-576页

作者： Shengnan YANG Jiapeng QU Ke TANG Xinquan ZHAO Huakun ZHOU Junhua HU Chengdu Institute of biology Chinese Academy of SciencesChengduChina Qinghai Provincial key laboratory of restoration Ecology for Cold Region Northwest lnstitute of Plateau BiologyChinese Academy of SciencesXiningChina University of Chinese Academy of Sciences BeijingChina Qinghai University XiningChina

The plateau environments are typically arid,cool,and high altitude,posing formidable challenges to wildlife survival due to resource scarcity and harsh *** ecological adaptability in severe conditions requires a deeper understanding of the niche characteristics of plateau *** niche,which is a comprehensive indicator describing the energy acquisition strategy of animals,remains relatively understudied in plateau ***,by combining stable isotopes and morphological data,we quantified the trophic niches of two allopatric lizard species(Phrynocephalus vlangalii and ***)that live in the hinterland of the Qinghai–Tibetan Plateau,and explored how their trophic niches correlate with morphological and environmental *** both trophic niche and morphological traits were similar between species,noteworthy distinctions were observed between male and female Phrynocephalus *** morphological traits associated with predation(*** length and head size)and reproduction(*** length),annual mean temperature,and sex played influential roles in shifting trophic *** results imply that sexual dimorphism may facilitate inter-sex divergence in resource utilization,leading to trophic niche variations in the highland ***,extreme environmental stress can constrain interspecific divergence in morphological and trophic *** findings illustrate the dynamic variations of trophic niches in highland lizards,contributing to a more comprehensive understanding of the adaptation strategies employed by lizard species in plateau environments.

关键词： environmental adaptation Phrynocephalus Qinghai-Tibetan Plateau sexual dimorphism stable isotope

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A New Species of the Asian Toad Genus Megophrys sensu lato(Amphibia: Anura: Megophryidae) from Guizhou Province, China

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Asian Herpetological Research 2018年第4期9卷 224-239页

作者： Shize LI Ning XU Jing LIU Jianping JIANG Gang WEI Bin WANG Department of Food Science and Engineering Maotai University CAS key laboratory of mountain ecological restoration and bioresource utilization and ecological restoration biodiversity conservation key laboratory of Sichuan Province Chengdu Institute of Biology (CIB) Chinese Academy of Sciences (CAS) biodiversity conservation key laboratory Guiyang College

We describe a new species of the genus Megophrys sensu lato from Guizhou Province, China. Molecular phylogenetic analyses based on mitochondrial DNA and nuclear DNA sequences all strongly supported the new species as an independent lineage in Megophrys(Panophrys) clade. The new species is distinguished from its congeners by a combination of the following morphological characteristics:(1) small body size with SVL biotarsal articulation reaching the level between tympanum to eye when leg stretched forward;(11) an internal single subgular vocal sac in male;(12) in breeding male, the nuptial pads with black nuptial spines on the dorsal bases of the first and second fingers.

关键词： Megophrys sensu lato new species taxonomy phylogenetic analysis Guizhou Province China

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Livelihood Diversification as an Adaptation Approach to Change in the Pastoral Hindu-Kush Himalayan Region

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Journal of mountain Science 2014年第5期11卷 1342-1355页

作者： WU Ning Muhammad ISMAIL Srijana JOSHI YI Shao-liang Ritu Meher SHRESTHA Abdul Wahid JASRA International Centre for Integrated mountain Development G.P.O Box 3226 Kathmandu Nepal key laboratory of mountain ecological restoration and bioresource utilization & ecological restoration biodiversity conservation key laboratory of Sichuan Province Chengdu Institute of Biology Chinese Academy of Sciences

Migratory livestock raising has been one of the most important livelihood options for people residing in high mountain areas and has made a significant contribution to the economy of the Hindu Kush Himalayan(HKH) region, both in terms of supporting households and in export earnings. However, in recent decades, changes in the socioeconomic situation and increasing climate variability have led to a need to enhance adaptation by building the resilience of local socio-ecological systems, including economic diversification and sustainable management of natural resources. Based on semistructured interviews with pastoral communities in six countries within the pastoral HKH region, this paper discusses the situation, trends and driving forces behind the diversification of pastoral livelihood. For internal diversification the study highlights the need for enhancement of pastoral livelihoods through value-adding activities in the pastoral sectors. For external diversification changes on policy changes are needed to support free out-migration, market exploitation, and multiple resource use. Finally the paper highlights the role of education in determining household adaptation strategies in the face of various socio-ecological pressures and recommends integrating innovative and indigenous knowledge to develop appropriate methods for risk management and resource management in the pastoral HKH region.

关键词： Adaptive capacity Diversification Livelihoods Pastoralism Himalaya

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Effects of warming and fertilization interacting with intraspecific competition on fine root traits of Picea asperata

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Journal of Plant Ecology 2021年第1期14卷 147-159页

作者： Dan-Dan Li Hong-Wei Nan Chun-Zhang Zhao Chun-Ying Yin Qing Liu key laboratory of mountain ecological restoration and bioresource utilization&ecological restoration biodiversity conservation key laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China College of Forestry Shanxi Agricultural UniversityJinzhong 030801China

Aims Competition,temperature and nutrient are the most important determinants of tree growth in the cold climate on the eastern Tibetan *** many studies have reported their individual effects on tree growth,little is known about how the interactions of competition with fertilization and temperature affect root *** aim to test whether climate warming and fertilization promote competition and to explore the functional strategies of Picea asperata in response to the interactions of these *** We conducted a paired experiment including competition and non-competition treatments under elevated temperature(ET)and *** measured root traits,including the root tip number over the root surface(RTRS),the root branching events over the root surface(RBRS),the specific root length(SRL),the specific root area(SRA),the total fine root length and area(RL and RA),the root tips(RTs)and root branching(RB)*** root traits are considered to be indicators of plant resource uptake capacity and root *** root biomass and the nutrient concentrations in the roots were also *** Findings The results indicated that ET,fertilization and competition individually enhanced the nitrogen(N)and potassium(K)concentrations in fine roots,but they did not affect fine root biomass or root traits,including RL,RT,RA and ***,both temperature and fertilizationz as well as their interaction,interacting with competition increased RL,RA,RT,RB and nutrient *** addition,the SRL,SRA,RTRS and RBRS decreased un der fertilization,the interaction between temperature and competition decreased SRL and SRA,while the other parameters were not affected by temperature or *** results indicate that *** maintains a conservative nutrient strategy in response to competition,climate warming,fertilization and their *** results improve our understanding of the physiological and ecological adaptability of trees to glo

关键词： competition climate warming fine root traits nutrient availability Picea asperata

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Towards Achieving Carbon Neutrality: The Role of Vegetation restoration in Karst Regions of Southwest China

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Journal of Earth Science 2024年第3期35卷 1044-1048页

作者： Yuemin Yue Lu Wang Xinbao Zhang Kelin Wang Guangxi key laboratory of Karst ecological Processes and Services Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China Huanjiang Observation and Research Station for Karst Ecosystem Chinese Academy of SciencesHuanjiang 547100China Chengdu Institute of mountain Disasters and Environment Chinese Academy of Sciences&Ministry of Water ResourcesChengdu 610041China

Karst regions of Southwest China become a hotspot for global greening through large-scale vegetation restoration in recent two ***,the unique,fragile geological setting of carbonate rocks affects the sustainability of vegetation ***,we summarize and evaluate the impacts of the rock and soil compositions of karst landscapes on the types and quality of vegetation *** introduce the concept of“soil mass”and establish its relationship with aboveground vegetation biomass across varying degrees of rocky *** mineral nutrients and soil mass constrain the potential of vegetation carbon sequestration in karst *** enhance the sustainability of vegetation restoration and carbon sequestration under karst geological constraints,we suggest to push ecological intensification of tree plantations and optimize the zoning and classification of rocky desertification treatment,and these restoration initiatives will foster vegetation restoration to serve as a pivotal pathway towards carbon neutrality.

关键词： soil karst restoration

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Circadian Rhythm and Intersexual Differences in Auditory Frequency Sensitivity in Emei Music Frogs

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Asian Herpetological Research 2022年第1期13卷 43-52页

作者： Bicheng ZHU Xiaoqian SUN Haodi ZHANG Yezhong TANG Jianguo CUI CAS key laboratory of mountain ecological restoration and bioresource utilization Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan ProvinceChengdu Institute of BiologyChinese Academy of SciencesChengdu 610041SichuanChina University of Chinese Academy of Sciences Beijing 100049China

In anurans, calling behaviour is strongly seasonal and circadian. Previous studies have revealed that a uditory sensitivity in frogs exhibits seasonal plasticity, and electroencephalographic signals exhibit highly correlated circadian patterns;of which, the circadian rhythm remains unknown. In this study,the circadian rhythm and intersexual differences of auditory sensitivity were tested in the Emei music frog(Nidirana daunchina). This was achieved by comparing thresholds and latencies of auditory brainstem responses(ABRs) evoked by tones and clicks stimuli between male and female frogs during the day and at night,respectively. Our results revealed that both auditory thresholds and latencies had no differences between day and night except the la tencies in 3.5–4.0 kHz frequencies. However, the thresholds of tone pip evoked ABRs differed significantly between male and female frogs from 2.5 to 5.0 kHz. This demonstrated that the auditory sensitivity of Emei music frogs exhibits sexual dimorphism at high frequencies, with female frogs exhibiting greater auditory sensitivity than that of male frogs. Simultaneously, the power spectra of male advertisement calls are matched well with the frequency range of auditory sensitivity in male and female frogs,which supports the matched filter hypothesis. Our study enhances the understanding of circadian plasticity and sexual dimorphism of auditory sensitivity in frogs.

关键词： auditory brainstem response auditory plasticity day-night rhythm frog sexual auditory dimorphism the matched filter hypothesis

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Latitudinal patterns of climatic variables and influence of local topography on climatic variables in the dry valleys of southwestern China

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Journal of mountain Science 2022年第5期19卷 1348-1356页

作者： LI Xiao-juan LIU Xin ZHANG Han-yue BAO Wei-kai CAS key laboratory of mountain ecological restoration and bioresource utilization&ecological restoration and biodiversity conservation key laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China

Climate is a key factor to determine the pattern of ecosystems;however,the latitudinal patterns of climatic variables in the arid and semiarid areas remain largely unclear when compared to humid *** topography of the dry valleys of southwestern China plays an important role in the formation of ***,its impact on the climate remains *** this study,eight climatic variables from 12 meteorological stations were analyzed to explore their latitudinal patterns in the wet and dry seasons from 1961 to *** also quantified the effects of local topography(RH10)on the climatic *** results were as follows:sunshine duration,total solar radiation,average temperature,and evaporation decreased significantly,and wind speed increased significantly with increasing latitude in the annual,wet,and dry seasons(P<0.001).Relative humidity and precipitation decreased significantly with increasing latitude in the wet season(P<0.001),and no obvious change pattern was observed in the dry *** index significantly decreased(toward dryness)with increasing latitude in the wet season and increased in the dry season(P<0.001).Wind speed had a significantly positive relationship with topography(RH10)(P<0.01),whereas precipitation and aridity index were negatively associated with topography in the wet season and positively associated with topography in the dry *** was positively associated with RH10 in the wet season,and negatively in the dry *** results of our research could provide new perspectives for understanding the relationship between topography and drought in the dry valleys of southwestern China.

关键词： Latitudinal patterns Wet season Dry season Aridity index Local topography

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The C:N:P stoichiometry in bryophytes: relationships with habitat,climate and growth form

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National Science Review 2023年第4期10卷 16-18页

作者： Xin Liu Zhe Wang Xiaoming Li Weikai Bao Kathrin Rousk China-Croatia ‘Belt and Road' Joint laboratory on biodiversity and Ecosystem Services CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of Sciences Shanghai Normal University Department of biology Terrestrial Ecology Section University of Copenhagen

The elemental composition and stoichiometry of organisms provide a useful lens for explaining and predicting ecological paterns and processes. However, few studies have focused on stoichiometry in bryophytes, even though they are abundant in many pristine ecosystems. Several case studies found variable paterns in bryophyte stoichiometry(e.g. [1,2]).

关键词： TEMPERATURE NITROGEN

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A New Species of Genus Microhyla(Amphibia： Anura： Microhylidae) from Zhejiang Province, China

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Asian Herpetological Research 2018年第3期9卷 135-148页

作者： Meihua ZHANG Liang FEI Changyuan YE Yufan WANG Bin Wang Jianping JIANG CAS key laboratory of mountain ecological restoration and bioresource utilization and ecological restoration and biodiversity conservation key laboratory of Sichuan Province Chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 China University of Chinese Academy of Sciences Beijing 100049 China Zhejiang Forest resource Monitoring Center Hangzhou 310020 China

We described a new species, Microhyla beilunensis sp. nov., from Zhejiang Province of China. Phylogenetic analyses based on the mitochondrial 12 S, 16 S and CO1 gene sequences suggested that the new taxon was distinctly separated from its congeners and closed to M. mixtura and M. okinavensis. Morphologically, the new species could be identified from its congeners except M. mixtura by several characters：（1） rudimentary webs on toe base;（2） absence of disks and dorsal median longitudinal grooves on finger tips;（3） presence of disks and dorsal median longitudinal grooves on toe tips. As well, the new species could be identified from topotype M. mixtura by the combination of characters：（1） apart from the stripes, bar-shaped and oval-shaped patterns, the rounded spots present on the dorsum of body and legs;（2） the outer metacarpal tubercles prominently larger than the inner one;（3） of males, the ratios of HW, IND, UEW and LAW to SVL of the new species were significantly larger than those of M. mixtura（P 〈 0.01）, and the ratios of SL, IOD, LAHL, HLL, TL, TFL and FL to SVL of the new species were significantly less than those of M. mixtura（P 〈 0.05）.

关键词： Microhyla morphological comparison new species phylogenetic analysis taxonomy Zhejiang

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Uptake and Recovery of Soil Nitrogen by Bryophytes and Vascular Plants in an Alpine Meadow

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Journal of mountain Science 2014年第2期11卷 475-484页

作者： WANG Jin-niu SHI Fu-sun XU Bo WANG Qian WU Yan WU Ning key laboratory of mountain ecological restoration and bioresource utilization & ecological restoration biodiversity conservation key laboratory of Sichuan Province Chengdu Institute of Biology Chinese Academy of Sciences University of Chinese Academy of Sciences International Centre for Integrated mountain Development (ICIMOD) G.P.O. Box 3226 Khumaltar Kathmandu Nepal

Due to their particular physiology and life history traits, bryophytes are critical in regulating biogeochemical cycles and functions in alpine ecosystem. Hence, it is crucial to investigate their nutrient utilization strategies in comparison with vascular plants and understand their responses to the variation of growing season caused by climate change. Firstly, this study testified whether or not bryophytes can absorb nitrogen(N) directly from soil through spiking three chemical forms of 15N stable isotope tracer. Secondly, with stronger ability of carbohydrates assimilation and photosynthesis, it is supposed that N utilization efficiency of vascular plants is significantly higher than that of bryophytes. However, the recovery of soil N by bryophytes can still compete with vascular plants due to their greater phytomass. Thirdly, resource acquisition may be varied from the change of growing season, during which N pulse can be manipulated with 15N tracer addition at different time. Both of bryophytes and vascular plants contain more N in a longer growing season, and prefer inorganic over organic N. Bryophytes assimilate more NH4+ than NO3– and amino acid, which can be indicated from the greater shoot excess 15N of bryophytes. However, vascular plants prefer to absorb NO3– for their developed root systems and vascular tissue. Concerning the uptake of three forms N by bryophytes, there is significant difference between two manipulated lengths of growing season. Furthermore, the capacity of bryophytes to tolerate N-pollution may be lower than currently appreciated, which indicates the effect of climate change on asynchronous variation of soil N pools with plant requirements.

关键词： Plant functional groups N pulse Alpine meadow N uptake N recovery

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