2025 Hyper Recent •CC0 1.0 Universal

This work is dedicated to the public domain. No rights reserved.

Access Preprint From Server
April 12th, 2025
Version: 2
Yunnan University
ecology
biorxiv

Aboveground fungal lethal effects of local plants on invasive plant Ageratina adenophora seedlings

Zeng, Z.-Y.Open in Google Scholar•Liu, Z.-Q.Open in Google Scholar•Yang, A.-L.Open in Google Scholar•Li, Y.-X.Open in Google Scholar•Wang, Y.-L.Open in Google Scholar•Siemann, E.Open in Google Scholar•Li, B.Open in Google Scholar•Zhang, H.-B.Open in Google Scholar

Native community resistance to plant invasion may reflect microbial effects on invader establishment. Here, we compared the effects of the aboveground and belowground microbes and leaf functional traits of 25 native plant species on the germination and survival of invader Ageratina adenophora. Results show that leaf physical and chemical traits vary among plant species and shape the aboveground microbial community. Local plants more phylogenetically close to A. adenophora harbour more similar pathogen communities to those in A. adenophora. The aboveground tissue inoculations had more adverse effects on A. adenophora establishment by delaying germination time and decreasing the germination rate and seedling survival than did soil inoculations; aboveground tissues from local plants, which are more closely related to A. adenophora, cause longer germination times and greater seedling mortality of A. adenophora. Moreover, local plant aboveground fungi, rather than bacteria, adversely impact seedling survival, and most of the detrimental fungal pathogen ASVs are specialists. Several strains isolated from dead seedlings caused by aboveground tissue inoculations belonging to Alternaria, Fusarium and Stagonosporopsis were verified to kill more than 60% of A. adenophora seedlings and thus have great potential as biocontrol agents for A. adenophora. This is the first study to provide evidence for the effects of phylogenetic relatedness and leaf traits (both functional and microbial) on local community resistance to invaders through the regulation of germination and seedling survival.

Similar Papers

biorxiv
Sun Apr 13 2025
Symbiont virulence is a poor predictor of impacts on host population dynamics
Symbionts are classified as parasites, commensals, or mutualists based on their individual-level effects on host traits such as mortality or reproduction rates. However, the classification of symbiosis might change when the focal interaction is investigated at the host population scale, for multiple generations, or under different environmental contexts. We investigated the individual- and populat...
Dziuba, M. K.
•
McIntire, K. M.
•
Davenport, E. S.
•
Corcoran, F. E.
...•
Duffy, M. A.
biorxiv
Sun Apr 13 2025
Omnivorous diets of sympatric duck species in a subtropical East Asia wetland unveiled by multi-marker DNA metabarcoding
The East Asian-Australasian Flyway (EAAF) is experiencing notable population decreases in its migratory waterbird species. Our understanding of the foraging ecology of these waterbird species, including ducks, is crucial for monitoring and safeguarding their food sources and wetland habitats. Here, we used a DNA metabarcoding approach to analyze the fecal DNA from duck species to elucidate their d...
Huang, P.-Y.
•
Poon, E. S. K.
•
Chan, L. Y.
•
Lam, D. K.
...•
Sin, S. Y. W.
biorxiv
Sat Apr 12 2025
First national survey of terrestrial biodiversity using airborne eDNA
Near real-time data across taxa are necessary for quantifying biodiversity at regional to continental scales and evaluating conservation measures. Yet, standardized methods and globally distributed infrastructure are still lacking. In this study, we conducted the first national survey of terrestrial biodiversity using a metabarcoding approach on airborne environmental DNA collected by a national a...
Tournayre, O.
•
Littlefair, J. E.
•
Garrett, N. R.
•
Allerton, J. J.
...•
Clare, E. L.
biorxiv
Sat Apr 12 2025
Continental-scale relationships of fine root and soil carbon stocks hold in grasslands but not forests
Increasing root carbon inputs into soils has been proposed as a solution to increasing soil organic carbon (SOC). However, while fine root carbon (FRC) inputs can increase SOC accrual in soils, FRC can also enhance SOC loss by stimulating microbial respiration and cause a net loss of SOC through priming. It remains unclear how SOC varies as a function of FRC at broad spatial scales. Here, we teste...
Malhotra, A.
•
Moore, J. A. M.
•
Weintraub-Leff, S.
•
Georgiou, K.
...•
Jackson, R. B.
biorxiv
Sat Apr 12 2025
Effect of spatial overdispersion on confidence intervals for population density estimated by spatial capture-recapture
Spatially explicit capture-recapture models are used widely to estimate the density of animal populations. The population is represented by an inhomogeneous Poisson process, where each point is the activity center of an individual and density corresponds to the intensity surface. Estimates of average density are robust to unmodeled inhomogeneity, but the coverage of confidence intervals is poor wh...
Efford, M. G.
•
Fletcher, D.
biorxiv
Sat Apr 12 2025
Local nesting resources rather than floral food alter ground-nesting bee communities in grazed habitats
Understanding how the availability of both trophic and non-trophic resources impacts key ecosystem service providers is crucial for informing conservation efforts. Non-trophic resources such as shelter can play critical roles in ecosystem function and resilience by affecting predation and pathogen rates, reproductive success, and interspecific interactions. However, non-trophic resources are often...
Collins, S. M.
•
Taylor, L. A.
•
Wright, K. W.
•
Lichtenberg, E. M.
biorxiv
Sat Apr 12 2025
VegVault database: linking global paleo-, and neo-vegetation data with functional traits and abiotic drivers
Understanding the dynamics and persistence of biodiversity patterns over short (contemporary) and long (thousands of years) time scales is crucial for predicting ecosystem changes under global climate and land-use changes. A key challenge is integrating currently scattered ecological data to assess complex vegetation dynamics over time. Here, we present VegVault, an interdisciplinary SQLite databa...
Mottl, O.
•
Gaiser, F.
•
Simova, I.
•
Flantua, S.
biorxiv
Fri Apr 11 2025
Invasive Aedes vittatus mosquitoes in Jamaica: A looming public health concern
Aedes vittatus, an emerging invasive mosquito of significant public health concern has slowly made its way onto the global radar. With a known geographical range in Africa and Asia, where it is a competent vector for several arboviruses, this mosquito has now been reported in the Americas. As the spread of this mosquito has been partly linked to transcontinental trade and travel, Jamaica, the larg...
Noble, S. A. A.
•
Ali, R. L. M. N.
•
Wilson-Clarke, C. F.
•
Khouri, N. K.
...•
Sandiford, S. L.
biorxiv
Fri Apr 11 2025
Restoration of urban salmon habitat has limited effects on a key ecosystem function
Pacific Salmon have the potential to act as umbrella species in western North America. Urban streams have warmer temperatures, higher nutrient loads, and flashier hydrographs from impervious surroundings (urban stream syndrome). These changes are likely to affect ecosystem functions that are key to biodiversity and ecosystem services. Here, we ask whether restoration to improve urban stream habita...
Wik, A. R.
•
Little, C. J.