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430 results for “meadow”
Supplementary material 5 from: Chodacki J, Habermann T, Hendricks G, Kaiser K, Kemp J, Meadows A, Paglione L, Pentz E, Ratner H, Reeves P, Schneider J, Stacey S, Urberg M (2020) Metadata 2020 Workathon Proceedings - Sept 2019. Research Ideas and Outcomes 6: e52878. https://doi.org/10.3897/rio.6.e52878
Value Map for Solution Builders
Supplementary material 2 from: Chodacki J, Habermann T, Hendricks G, Kaiser K, Kemp J, Meadows A, Paglione L, Pentz E, Ratner H, Reeves P, Schneider J, Stacey S, Urberg M (2020) Metadata 2020 Workathon Proceedings - Sept 2019. Research Ideas and Outcomes 6: e52878. https://doi.org/10.3897/rio.6.e52878
The Content Directors Audience Profile
Supplementary material 4 from: Chodacki J, Habermann T, Hendricks G, Kaiser K, Kemp J, Meadows A, Paglione L, Pentz E, Ratner H, Reeves P, Schneider J, Stacey S, Urberg M (2020) Metadata 2020 Workathon Proceedings - Sept 2019. Research Ideas and Outcomes 6: e52878. https://doi.org/10.3897/rio.6.e52878
The Researcher Audience Profile
Supplementary material 8 from: Chodacki J, Habermann T, Hendricks G, Kaiser K, Kemp J, Meadows A, Paglione L, Pentz E, Ratner H, Reeves P, Schneider J, Stacey S, Urberg M (2020) Metadata 2020 Workathon Proceedings - Sept 2019. Research Ideas and Outcomes 6: e52878. https://doi.org/10.3897/rio.6.e52878
Value Map for Researchers
Supplementary material 7 from: Chodacki J, Habermann T, Hendricks G, Kaiser K, Kemp J, Meadows A, Paglione L, Pentz E, Ratner H, Reeves P, Schneider J, Stacey S, Urberg M (2020) Metadata 2020 Workathon Proceedings - Sept 2019. Research Ideas and Outcomes 6: e52878. https://doi.org/10.3897/rio.6.e52878
Value Map for Policy/ Society Influencers
Dataset on the reproductive and actuarial ageing in a population of meadow vipers (Vipera ursinii) in the Mont Serein (France)
<p>This dataset gather the data used in the mansucript entitled Micro-geographic shift between negligible and actuarial senescence in a wild snake.</p> <p>Each sheet of data refers to a specific figure from the article.</p>
Figure 5 in Patterns of spatial variability of mobile macro-invertebrate assemblages within a Posidonia oceanica meadow
Figure 5. Percentage pseudo-variance components of mobile macro-invertebrate assemblages of Posidonia oceanica meadow at (a) shallow, (b) intermediate and (c) deep stands.
Data from: Differential responses of ecosystem carbon flux components to experimental precipitation gradient in an alpine meadow
1. Changes in precipitation have the potential to cause dramatic changes in ecosystem carbon (C) cycling; however, it remains unclear whether different components of the net ecosystem exchange (NEE) (e.g., C uptake vs. release, plant vs. microbe respiration, aboveground vs. belowground plant respiration), have similar or differential sensitivity to precipitation gradients. 2. We conducted a manipulative field experiment (from 2015 to 2017) with six precipitation treatments, including 1/12 annual precipitation (P), 1/4 P, 1/2 P, 3/4 P, P, and 5/4 P in an alpine meadow to investigate the responses of the NEE components. 3. Over the three years, all C fluxes showed a nonlinear response to the precipitation gradients, except for root respiration. The most extreme drought treatment (1/12 P) caused strong reductions in NEE by 15.57%, gross primary productivity by 17.26%, and ecosystem respiration by 19.05%, in contrast to the control. Plant respiration was more sensitive to precipitation change than microbe respiration, and aboveground plant respiration was more susceptible than belowground respiration. Structural equation models revealed that the response of C fluxes under precipitation changes were primarily due to changes in the soil water content and aboveground net primary productivity. 4. Our findings indicate that future precipitation changes, particularly extreme drought, will decrease ecosystem C fluxes with different magnitudes, leading to a consequent reduction of NEE. These emergent ecosystem properties are essential for the improved elucidation of carbon cycle dynamics and benchmarking models, to predict ecosystem responses to precipitation changes.
Data from: Resident species with larger size metrics do not recruit more offspring from the seed bank in old-field meadow vegetation
1. According to the traditional 'Size Advantage' (SA) hypothesis, plant species with larger body size are expected to be more successful when competition is intense, i.e. within severely crowded vegetation. Recent studies in old-field habitats, however, have shown that those species with greater numerical abundance as resident plants generally have a relatively small minimum reproductive threshold size (MIN), not a relatively large maximum potential body size (MAX). 2. In this study, we test for a size advantage in terms of species abundance representation in the soil seed bank, and we extend the SA hypothesis to include two additional size metrics: leaf size and seed size. Specifically, we ask, for resident species within a crowded old-field meadow: is larger seed size, leaf size, and/or body size associated with greater reproductive / recruitment success (i.e. number of germinable seeds within — and establishing plants emerging from — the soil seed bank)? We collected soil cores for a greenhouse experiment to record relative species abundances of germinable seeds in the seed bank, and we used a field experiment to record local abundances of species emerging from the resident seed bank within denuded plant neighbourhoods over three subsequent field seasons. 3. We found no general support for the SA hypothesis involving any of the size metrics, and none of the latter was a strong predictor of the number of germinable seeds emerging from soil cores in the greenhouse experiment. However, for species establishing in the field experiment from the seed bank over the three-year survey period, more abundant species in years 2 and 3 tended to be those with smaller MIN, and thus smaller MAX. In addition, within more crowded neighbourhoods, representation of reproductive plants was generally greater for species with relatively small MIN (and hence small MAX). 4. Synthesis. Our results extend support for the 'Reproductive Economy Advantage' hypothesis in old field habitats, to include not just established, largely undisturbed vegetation, but also very early stages of recruitment from seed within locally crowded plant neighbourhoods. Specifically, more successful species here are not those with relatively large potential body size (MAX); they are species capable of producing at least some offspring despite severe body size suppression, because they have a relatively small MIN.
Alpine meadow patch erosion data
Open the record for dataset details and reuse information.
Supplementary material 1 from: Sattler C, Schrader J, Hüttner M-L, Henle K (2024) Effects of management, habitat and landscape characteristics on biodiversity of orchard meadows in Central Europe: A brief review. Nature Conservation 55: 103-134. https://doi.org/10.3897/natureconservation.55.108688
Complete list of references
Potential distribution of seagrass meadows based on MaxEnt model in Chinese coastal waters
<p><span>Seagrass meadows are generally diverse in China and have the same essential ecosystem services as elsewhere. However, an evaluation of seagrass distribution across China is still lacking, and the magnitude and direction of changes in seagrass meadows remains unclear. Our primary objective was to provide a nationwide seagrass distribution map, and to explore the dynamic changes of seagrass population under global climate change. We use simulation studies within the modelling software MaxEnt with 58961 occurrence records and 27 marine environmental variables, to simulate the potential distribution of seagrasses and calculate the area. 7 environmental variables were deleted before the modelling processes based on a correlation analysis to ensure predicted suitability. The predicted area was 790.09 km<sup>2</sup>, which is much larger than the known seagrass distribution in China, and would be increased to 923.62 km<sup>2</sup> by the year 2100. However, the suitable habitat of almost all seagrass will shift northwest in the future. The sum of individual family will under-predict the national distribution of seagrass, showed a downward trend consistently in the future. Out of all environmental variables, the physical ones (e.g. depth, land distance and sea surface temperature) had the greatest contribution in predicting seagrass distributions, and nutrients (e.g. nitrate, phosphate) ranked among the key influential predictors for habitat suitability in our focal area. As this is a first effort to fill a gap in our understanding of the distribution of seagrass in China, further studies are necessary using both modeling and biological/ecological approaches. </span></p>
Male meadow vole scent marking 1 rival odor context
<p>Meadow voles (<i>Microtus pennsylvanicus</i>) rely on olfactory communication, such as scent marking, to find and secure mating opportunities during the breeding season. Scent marks, and odors in general, provide information about the donors and persists in the environment for extended periods, allowing a wide audience. Whether a vole responds to another scent mark(s), or odor(s), depends on the social context and the information the odor provides about the donor(s). Therefore, we examined if male scent marking towards a social odor or female meadow voles is influenced by information present or previously encountered based on contextual differences in the social odor. We presented males with two odor associations of a male with a female with contextual differences in the age of the rival. We tested male scent marking with both the odors present, current information, and with the females from the social information, prior information. It was found that rival male age did not affect the scent marking behavior of males towards a social odor or female voles. Rival male age also did not affect preference as males did not show a preference for either female. The lack of an effect may lie in the properties of scent marks and the natural history of meadow voles during the breeding season. The odor of an individual rival may not represent a strong enough competitional threat to influence a signaler's decisions, but the association could still provide the signaler with valuable information about which females are consider high-quality.</p>
Long-term shifts in the functional diversity of abandoned wet meadows – Impacts of historical disturbance and successional pathways
<p>Investigating the direction of changes in functional diversity involving successional pathways and historical disturbances may be a promising tool for predictions of the effectiveness of the semi-natural meadows conservation, with great emphasis on formulation of more cost-effective restoration strategies. The goal of this research was to assess the differences in long-term shifts in the functional diversity of plant species in semi-natural wet meadows unmanaged for the last 40 years, under the influence of different successional pathways and historical disturbances. Using ordination techniques, linear mixed-effect models, a set of plant functional traits and parameters of functional diversity, we assessed the importance of habitat filtering, competition and niche partitioning in shaping community assembly changes over time. The most dramatic shifts in functional diversity were found in the <i>Carex acutiformis </i>successional pathway after topsoil removal, where colonization by successional inhibitors was the main driver causing decreases in functional dispersion and divergence. This was expressed as a decrease in the importance of habitat filtering and replacement of specialized species by competitors with heavier seeds and higher specific leaf area. Regarding the <i>C. cespitosa</i> and <i>Salix cinerea </i>pathways, the magnitudes of shifts in functional diversity were milder and differed less between the historical topsoil removal and mowing treatments, thereby maintaining a large role for niche partitioning in shaping the vegetation structure. The results of our study highlight the importance of tussock sedges and shrubs as effective buffers against the biotic homogenization of meadows driven by the simplification of functional composition, even from a long-term perspective.</p>
FIGURE 6 in Two new species of sea cucumbers (Echinodermata: Holothuroidea) from the seagrass meadow of Penang, Malaysia
FIGURE 6. Acaudina spinifera sp. nov., USMCRC-Echi 029; lateral view. A=Anterior; P=Posterior.
FIGURE 1 in Two new species of sea cucumbers (Echinodermata: Holothuroidea) from the seagrass meadow of Penang, Malaysia
FIGURE 1. Location of sampling area in Middle Bank and Pulau Gazumbo.
FIGURE 2 in Two new species of sea cucumbers (Echinodermata: Holothuroidea) from the seagrass meadow of Penang, Malaysia
FIGURE 2. Euthyonidiella zulfigaris sp. nov. USMCRC-Echi 010; dorsal view. A=Anterior; P=Posterior.
Distribution and pollination services of wild bees and hoverflies along an altitudinal gradient in mountain hay meadows
<p>Extensively managed and flower rich mountain hay meadows, hotspots of Europe's biodiversity, are subject to environmental and climatic gradients linked to altitude. While the shift of pollinators from bee to fly dominated communities with increasing elevation across vegetation zones is well established, the effect of highland altitudinal gradients on the community structure of pollinators within a specific habitat is poorly understood. We assessed wild bee and hoverfly communities, and their pollination service to three plant species common in mountain hay meadows, in eighteen extensively managed yellow oat grasslands (Trisetum flavescens) with an altitudinal gradient spanning approx. 300 meters. Species richness and abundance of pollinators increased with elevation, but no shift between hoverflies and wild bees (mainly bumblebees) occurred. Seedset of the woodland cranesbill (Geranium sylvaticum) increased with hoverfly abundance and seedset of the marsh thistle (Cirsium palustre) increased with wild bee abundance. Black rampion (Phyteuma nigrum) showed no significant response. The assignment of specific pollinator communities, and their response to altitude in highlands, to different plant species underlines the importance of wild bees and hoverflies as pollinators in extensive grassland systems.</p>
Community species diversity mediates the trade-off between aboveground and belowground biomass for grasses and forbs in degraded alpine meadow, Tibetan Plateau
<p>Although many empirical experiments have shown that increasing degradation results in lower aboveground biomass (AGB), our knowledge of the magnitude of belowground biomass (BGB) for individual plants is a prerequisite for accurately revealing the biomass trade-off in degraded grasslands. Here, by linking the AGB and BGB of individual plants, species in the community, and soil properties, we explored the biomass partitioning patterns in different plant functional groups (grasses of <i>Stipa capillacea</i> and forbs of <i>Anaphalis xylorhiza</i>). Our results indicated that 81% and 60% of the biomass trade-off variations could be explained by environmental factors affecting grasses and forbs, respectively. The change in community species diversity dominated the biomass trade-off via either direct or indirect effects on soil properties and biomass. However, the community species diversity imparted divergent effects on the biomass trade-off for grasses (scored at -0.72) and forbs (scored at 0.59). Our findings suggest that plant communities have evolved two contrasting strategies of biomass allocation patterns in degraded grasslands. These are the "conservative" strategy in grasses, in which plants with larger BGB trade-off depends on gigantic roots for soil resources, and the "opportunistic" strategy in forbs, in which plants can adapt to degraded lands using high variation and optimal biomass allocation.</p>
Figure 6 from: Kenyeres Z, Szentirmai I (2017) Effects of different mowing regimes on orthopterans of Central-European mesic hay meadows. Journal of Orthoptera Research 26: 29-37. https://doi.org/10.3897/jor.26.14549
Figure 6 - PCA based on the orthopteran samples of four study sites (sites I–IV) (black circle: mowing once a year in May; black square: mowing twice a year in May and September; empty circle: mowing once a year in September; black triangle: abandoned).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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