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23 results for “native dominants”
Supplementary material 1 from: Hejda M (2013) Do species differ in their ability to coexist with the dominant alien Lupinus polyphyllus? A comparison between two distinct invaded ranges and a native range. NeoBiota 17: 39-55. https://doi.org/10.3897/neobiota.17.4317
Entry data for the univariate models with species richness as a response variable. (doi: 10.3897/neobiota.17.4317.app1) File format: Micrisoft Excell document (xls). :
Figure 1 in First record of the near threatened native seahorse Hippocampus reidi (Teleostei: Syngnathidae) in an ecosystem dominated by the invasive seagrass Halophila stipulacea in the Caribbean Sea
Figure 1. – Specimen of Hippocampus reidi Ginsburg, 1933, photographed in a dense Halophila stipulacea seagrass bed on the west coast of Martinique Island, on 9th June 2017.
Non-native weed reaches community dominance under the canopy of native tree
Whether facilitation from native plants is strong enough to trigger community dominance by non-natives remains unclear. We explored the possibility that facilitation from Prosopis caldenia, the dominant native tree in the semiarid open forest of central Argentina, drives local community dominance by Chenopodium album, an annual herb native to Europe. We assessed this hypothesis by conducting extensive field sampling in which we recorded the relative abundance of species growing under the canopy of P. caldenia (caldén microsites) and in adjacent locations free of this tree (open microsites). If our hypothesis is correct, then the relative abundance of C. album will be greater than that of the rest of the species only when growing under P. caldenia. Also, we measured C. album performance, estimated its soil seed bank, and characterized growing conditions in caldén and open microsites. We found that the relative abundance of C. album was over seven times greater than that of any other species in communities occurring in caldén microsites; by contrast, C. album co-dominated communities with several other species in the open. Chenopodium album density, cover, biomass, and fecundity were all several times greater in caldén than open microsites. Similarly, C. album seed bank displayed an eight-fold increase in caldén as compared to open microsites. Growing conditions were markedly different between microsites, which could explain positive responses from C. album. Our results suggest that facilitation from natives is indeed strong enough to trigger local community dominance by non-natives, advancing the understanding of community-level consequences of this interaction.
Data from: Dominant carnivore loss benefits native avian and invasive mammalian scavengers
<p>Scavenging by large carnivores is integral for ecosystem functioning by limiting the build-up of carrion and facilitating widespread energy flows. However, top carnivores have declined across the world, triggering trophic shifts within ecosystems. In this study, we use a natural 'removal experiment' of disease-driven decline and island extirpation of native mammalian (marsupial) carnivores to investigate top-down control on utilisation of experimentally placed carcasses by two mesoscavengers – the invasive feral cat and native forest raven. Ravens were the main beneficiary of carnivore loss, scavenging for five times longer in the absence of native mammalian carnivores. Cats scavenged on half of all carcasses in the region without dominant native carnivores. This was eight times more than in areas where other carnivores were at high densities. All carcasses persisted longer than the three-week monitoring period in the absence of native mammalian carnivores, while in areas with high carnivore abundance, all carcasses were fully consumed. Our results reveal the efficiency of carrion consumption by mammalian scavengers. These services are not readily replaced by less-efficient facultative scavengers. Overall, our results demonstrate the significance of global carnivore conservation and support management approaches, such as rewilding in areas where the natural suite of carnivores is missing.</p>
Data from: High foraging fidelity and plant-pollinator network dominance of non-native honeybees (Apis mellifera) in the Ecuadorian Andes
<p>These data reflect the floral visitor survey and mark-recapture efforts used in the 2022 study, "High Foraging Fidelity and Plant‑Pollinator Network Dominance of Non‑native Honeybees (<em>Apis mellifera</em>) in the Ecuadorian Andes"</p>
Data from: High foraging fidelity and plant-pollinator network dominance of non-native honeybees (Apis mellifera) in the Ecuadorian Andes
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Data from: Dominant carnivore loss benefits native avian and invasive mammalian scavengers
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Data from: Phenology differences between native and novel exotic-dominated grasslands rival the effects of climate change
1. Novel ecosystems can differ from the native systems they replaced. We used phenology measures to compare ecosystem functioning between novel exotic-dominated and native-dominated grasslands in the central US. 2. Phenology, or timing of biological events, is affected by climate and land use changes. We assessed how phenology shifts are being altered by exotic species dominance by comparing remotely sensed Normalized Difference Vegetation Index (NDVI) within growing seasons at exotic- and native-dominated sites along a latitudinal gradient. Exotic species were dominated by the C3 species functional group in the north and the C4 species functional group in the south. 3. Date of senescence was an average of 36 days later in exotic than native-dominated grasslands, and this effect was consistent across latitudes. 4. Exotic-dominated grasslands greened up an average of 10.7 days earlier than native-dominated grasslands, but this effect was highly dependent on latitude and the plant functional group that dominated at that latitude. Greenup differed between native and exotic sites the most in central and northern regions that had dominant C3 grasses. 5. We estimated the effects of an increase in global temperatures on green-up and senescence with a space-for-time substitution, and by comparing growing degree day differences between historical average temperatures and +2.5° C. Green-up was significantly earlier and senescence was significantly later with a 2.5 ° C increase in temperature. The native-exotic difference was significantly greater than the difference due to increased temperature for senescence, but not for green-up. 6. Synthesis and applications. Native to exotic plant conversions in central US grasslands have led to highly altered phenology, especially in terms of senescence, and this effect should be considered along with global warming in models moving forward. This conversion will have to be considered in developing estimates of how global change will affect phenology in locations where exotics are present, especially in cases where their abundance is increasing concurrent with climate change. Global change models and policy should consider exotic species invasion as an additional widespread factor behind changes in phenology.
The impact of a native dominant plant, Euphorbia jolkinii, on plant-flower visitor networks and pollen deposition on stigmas of co-flowering species in sub-alpine meadows of Shangri-La, SW China
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Data from: Suppressing competitive dominants and community restoration with native parasitic plants using the hemiparasitic Rhinanthus alectorolophus and the dominant grass Calamagrostis epigejos
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Data from: Structural, compositional and trait differences between native and non-native dominated grassland patches
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Data from: Increases and fluctuations in nutrient availability do not promote dominance of alien plants in synthetic communities of common natives
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Data from: Phenology differences between native and novel exotic-dominated grasslands rival the effects of climate change
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Data from: Non-native Vespula germanica yellowjackets dominate urban-to-rural gradient
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Data from: Non-native insects dominate daytime pollination in a high-elevation Hawaiian dryland ecosystem
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Dominant native and non-native graminoids differ in key leaf traits irrespective of nutrient availability
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Supplementary material 2 from: Kortz A, Hejda M, Pergl J, Kutlvašr J, Petřík P, Sádlo J, Vítková M, Vojík M, Pyšek P (2024) Impacts of native and alien plant dominants at different spatial scales. NeoBiota 92: 29-43. https://doi.org/10.3897/neobiota.92.116392
Map with populations of the selected native and alien dominants
Supplementary material 3 from: Kortz A, Hejda M, Pergl J, Kutlvašr J, Petřík P, Sádlo J, Vítková M, Vojík M, Pyšek P (2024) Impacts of native and alien plant dominants at different spatial scales. NeoBiota 92: 29-43. https://doi.org/10.3897/neobiota.92.116392
Primary data, details on the statistical models and summary of the results
Supplementary material 1 from: Kortz A, Hejda M, Pergl J, Kutlvašr J, Petřík P, Sádlo J, Vítková M, Vojík M, Pyšek P (2024) Impacts of native and alien plant dominants at different spatial scales. NeoBiota 92: 29-43. https://doi.org/10.3897/neobiota.92.116392
The selected native and invasive dominants
Supplementary material 1 from: Yazlık A, Ambarlı D (2022) Do non-native and dominant native species carry a similar risk of invasiveness? A case study for plants in Turkey. In: Giannetto D, Piria M, Tarkan AS, Zięba G (Eds) Recent advancements in the risk screening of freshwater and terrestrial non-native species. NeoBiota 76: 53-72. https://doi.org/10.3897/neobiota.76.85973
Tables S1–S3, Figure S1
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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