To understand the niche characteristics of main woody species in Pterocarya stenoptera community, we investigated P. stenoptera communities in riparian zone of Lijiang River, China. The niche characteristics of main species in tree layers and shrub layers were quantified with the indices of Levins niche breadth, Shannon niche breadth, Schoener niche similarities and Pianka niche overlap. The results showed that P. stenoptera in the tree layer, and Ficus abelii and Morus alba in the shrub layer had higher niche breadth than other species. The species with larger importance values generally had larger niche breadth, but the rank orders of which were not exactly the same. The niche similarity of main populations in the tree layer was generally smaller than that in the shrub layer. The mean value of niche similarity of main populations in the tree layer and shrub layer was 0.151 and 0.236, respectively. There was a low degree of niche similarity among species within the community, indicating that they had a low similarity in resource use. The niche overlap of main populations in the tree layer was generally smaller than that in the shrub layer, with the mean value of niche overlap of main populations in the tree layer and shrub layer being 0.217 and 0.273, respectively. The niche overlap between the main species in the community was relatively lower. There was no significant correlation between niche breadth and niche similarity. The species with larger niche breadth often had more opportunities to overlap with other species. However, their overlap value was not necessarily larger. Larger niche similarity was often associated with higher degrees of niche overlap. The P. stenoptera community in riparian zone of Lijiang River was the climax community, the relationship among species was relatively stable, the population regeneration was very slow, and the development trend of this community was declining in the future.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.13287/j.1001-9332.201812.001 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Current level of rheumatology teaching amongst undergraduate medical students: a systematic literature review.
Clin Rheumatol
January 2025
School of Medicine, University of Liverpool, Cedar House, Ashton St., Liverpool, Merseyside, L69 3GE, UK.
Data from the British Society of Rheumatology demonstrate a lack of exposure to rheumatology for medical students, potentially impacting career choice. We conducted a Systematic Literature Review (SLR) on quantity, type and quality of rheumatology teaching for undergraduate medical students. This SLR was registered on PROSPERO (CRD42023472169).
View Article and Find Full Text PDFA novel framework unveiling the importance of heterogeneous selection and drift on the community structure of symbiotic microbial indicator taxa across altitudinal gradients in amphibians.
Microbiol Spectr
January 2025
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.
Unlabelled: Existing analytical frameworks for community assembly have a noticeable knowledge gap, lacking a comprehensive assessment of the relative contributions of individual or grouped microbial distinct sampling units (DSUs) and distinct taxonomic units (DTUs) to each mechanism. Here, we propose a comprehensive framework for identifying DTUs/DSUs that remarkably contribute to the various mechanisms sustaining microbial community structure. Amphibian symbiotic microbes along an altitudinal gradient from Sichuan Province, China, were employed to examine the proposed statistical framework.
View Article and Find Full Text PDFVariations in the Bacterial, Fungal, and Protist Communities and Their Interactions Within Sediment Affected by the Benthic Organism, Snail .
Microorganisms
December 2024
Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
In aquatic benthic environments, benthic organisms have been found to regulate important biogeochemical characteristics and perform key ecosystem functions. To further explore the ecological impact of the snail 's, presence on the benthic environment, we employed high-throughput sequencing technology to investigate its effects on the bacterial, fungal, and protist communities in sediment and their intrinsic interactions. Our findings revealed that 's presence significantly enhanced the diversity and evenness of the fungal community while simultaneously decreasing the diversity and richness of the protist community, and it also altered the composition and relative abundance of the dominant phyla across the bacterial, fungal, and protist communities.
View Article and Find Full Text PDFInpatient Pediatric Clinical Consultations to Vascular Surgery within a Children's Hospital.
J Vasc Surg
December 2024
Division of Vascular Surgery, Loma Linda School of Medicine, 11175 Campus St, Loma Linda, CA 92350, USA. Electronic address:
Introduction: Acute pediatric vascular issues are infrequent and result in a diverse, unpredictable experience for vascular surgeons and trainees. We reviewed the indications for consult and resulting interventions provided by the Vascular Surgery (VS) service at a freestanding Children's Hospital (CH) adjacent to a university hospital.
Methods: Consults to VS at our CH were reviewed over a 4.
Niche and interspecific association of dominant zooplankton species near the Taishan coastal area in the South China Sea.
Mar Environ Res
December 2024
Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Scientific Observation and Research Station of Pearl River Estuary Ecosystem of Guangdong Province, Guangdong Provincial Key Laboratory of Fishery Ecology Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510300, China; National Agricultural Experimental Station for Fishery Resources and Environment Dapeng, Shenzhen 518120, China. Electronic address:
Marine zooplankton communities represent one of the most diverse and abundant species groups on earth. To investigate the ecological niche characteristics and interspecific interactions of marine zooplankton, and to elucidate their role in carbon deposition and biogeochemical cycling, we conducted a study on the zooplankton community near Taishan in the South China Sea between December 2015 and September 2016. Using niche breadth, niche overlap, the variance ratio method, chi-square tests, and linkage coefficients, we analyzed the interrelationships among the major zooplankton species.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!