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83 results for “steppe species”
Figs 13‒16 in Two new species of the subgenus Arqueozodes of Lasionota from Aysén Patagonian steppe Region in Chile (Coleoptera: Buprestidae)
Figs 13‒16. Lasionota (Arqueozodes) sulcata (Moore, 1997), male. 13 ‒ dorsal view, 14 ‒ detail of apex of elytron, 15 ‒ ventral view, 16 ‒ lateral view. Scale bars 13, 15‒16 = 5 mm, 14 = 1 mm.
Figs 7‒12 in Two new species of the subgenus Arqueozodes of Lasionota from Aysén Patagonian steppe Region in Chile (Coleoptera: Buprestidae)
Figs 7‒12. Lasionota (Arqueozodes) aonikenk sp. nov. 7‒9 ‒ male: 7 ‒ dorsal view; 8 ‒ ventral view; 9 ‒ lateral view. 10‒12 ‒ female: 10 ‒ dorsal view; 11 ‒ ventral view; 12 ‒ lateral view. Scale bars = 5 mm.
Figs 17‒26 in Two new species of the subgenus Arqueozodes of Lasionota from Aysén Patagonian steppe Region in Chile (Coleoptera: Buprestidae)
Figs 17‒26. Lasionota (Arqueozodes) spp. 17‒19 ‒ head, frontal view: 17 ‒ L. (A.) cidburmeisteri sp. nov., 18 ‒ L. (A.) aonikenk sp. nov., 19 ‒ L. (A.) sulcata (Moore, 1997). 20‒21 ‒ L. (A.) cidburmeisteri sp. nov., aedeagus: 20 ‒ dorsal view; 21 ‒ ventral view. 22‒23 ‒ L. (A.) aonikenk sp. nov., aedeagus: 22 ‒ dorsal view; 23 ‒ ventral view. 24 ‒ L. (A.) aonikenk sp. nov., last tergites and ovipositor of female. 25‒26 ‒ L. (A.) sulcata, aedeagus: 25 ‒ dorsal view; 26 ‒ ventral view. Scale bars = 1 mm.
Figs 1‒6 in Two new species of the subgenus Arqueozodes of Lasionota from Aysén Patagonian steppe Region in Chile (Coleoptera: Buprestidae)
Figs 1‒6. Lasionota (Arqueozodes) cidburmeisteri sp. nov. 1‒3 ‒ male: 1 ‒ dorsal view; 2 ‒ ventral view; 3 ‒ lateral view; 4‒6 ‒ female: 4 ‒ dorsal view; 5 ‒ ventral view; 6 ‒ lateral view. Scale bars = 5 mm.
Рис. 1–7. Новые ΑΛя фауны России и маΛоизвестные виΑы жуков-ΑоΛгоносиков. 1–3 – Cionus rossicus: 1 – самец, 2 – эΑеагус, 3 – самка; 4 – Cionus gebleri; 5 – Mecinus janthiniformis; 6 – Smicronyx robustus; 7 – Smicronyx albopictus. Figs 1–7. New to the fauna of Russia and little known species of weevils. 1–3 – Cionus rossicus: 1 – male, 2 – aedeagus, 3 – female; 4 – Cionus gebleri; 5 – Mecinus janthiniformis; 6 – Smicronyx robustus; 7 – Smicronyx albopictus. in Interesting records of weevils (Coleoptera: Curculionidae: Curculioninae) in the steppe zone of the European part of Russia and the Urals
Рис. 1–7. Новые ΑΛя фауны России и маΛоизвестные виΑы жуков-ΑоΛгоносиков. 1–3 – Cionus rossicus: 1 – самец, 2 – эΑеагус, 3 – самка; 4 – Cionus gebleri; 5 – Mecinus janthiniformis; 6 – Smicronyx robustus; 7 – Smicronyx albopictus. Figs 1–7. New to the fauna of Russia and little known species of weevils. 1–3 – Cionus rossicus: 1 – male, 2 – aedeagus, 3 – female; 4 – Cionus gebleri; 5 – Mecinus janthiniformis; 6 – Smicronyx robustus; 7 – Smicronyx albopictus.
Data from: Diversity among rare and common congeneric plant species from the Garry oak and Okanagan shrub-steppe ecosystems in British Columbia: implications for conservation
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SGS-LTER Ecosystem Stress Area - Aboveground Biomass: Interactions between individual plant species and soil nutrient status in shortgrass steppe on the Central Plains Experimental Range in Nunn, Colorado, USA 1991
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. The effect of plant community structure on nutrient cycling is fundamental to our understanding of ecosystem function. We examined the importance of plant species and plant cover (i.e. plant covered microsites vs bare soil) on nutrient cycling in shortgrass steppe of northeastern Colorado. We tested the effects of both plant species and cover on soils in an area of undisturbed shortgrass steppe and an area that had undergone nitrogen and water additions from 1971 to 1974, resulting in significant shifts in plant species composition.
SGS-LTER Ecosystem Stress Area - Belowground Biomass: Interactions between individual plant species and soil nutrient status in shortgrass steppe on the Central Plains Experimental Range in Nunn, Colorado, USA 1991
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. The effect of plant community structure on nutrient cycling is fundamental to our understanding of ecosystem function. We examined the importance of plant species and plant cover (i.e. plant covered microsites vs bare soil) on nutrient cycling in shortgrass steppe of northeastern Colorado. We tested the effects of both plant species and cover on soils in an area of undisturbed shortgrass steppe and an area that had undergone nitrogen and water additions from 1971 to 1974, resulting in significant shifts in plant species composition. Additional information and referenced materials can be found: http://hdl.handle.net/10217/83317.
Fig. 8 in Phenology And Population Structure Of Forest Herbaceous Species In Artificial And Natural Communities In The Steppe Zone Of Ukraine
Fig. 8. Dates of onset and duration of budding (1) and flowering (2).
Effects of long-term mowing on leaf- and root-associated bacterial community structures are linked to functional traits in 11 plant species from a temperate steppe
<ol> <li><span>Long-term mowing can cause morphological stuntedness of plants, thus reducing grassland productivity and exacerbating grassland degradation. Although plant microbiomes can enhance plant resistance against disturbance, considerable uncertainty exists regarding how mowing and mowing-induced plant trait plasticity affect plant microbiomes in natural grasslands. </span></li> <li><span>Here we examined the responses of leaf-/root-associated bacterial (LAB/RAB) communities of 11 dominant herbaceous perennials (6 replicates per species) to a 17-year mowing treatment in a temperate grassland. We also measured leaf/root physiological and morphological traits and analyzed the relationships among mowing practice, bacterial community structures, and leaf/root trait parameters. </span></li> <li><span>We found that both leaf and root functional traits showed interspecific variations (variations across different plant species), while only the leaf traits exhibited intraspecific variation (treatment-induced variations within plant species) between the treatments. Similarly, the LAB community structure was more sensitive to mowing but less influenced by host species identity, compared to the RAB community. The RAB community structure was primarily shaped by host species identity, while mowing was a secondary influencing factor. </span></li> <li> <span>The different patterns of LAB and RAB communities in response to mowing could be specifically explained by the inter-/intraspecific variations of the related leaf and root traits. The LAB community was strongly correlated with the leaf traits which exhibited mowing-induced plasticity (intraspecific variation), with the correlations with nitrogen resorption efficiency and aboveground dry weight being the greatest. The root traits were important indicators of bacterial community structure in the root compartment across the hosts, rather than between the treatments. Root tissue density</span> <span>showed the strongest interspecific variation, and was identified as an overwhelming driver of the RAB community. The shifts in LAB/RAB communities under mowing were largely attributed to the increased proportions of Actinobacteria. The high mowing sensitivity of the LAB community was associated with the enrichment of soil-derived Actinobacteria in leaves under mowing. Actinobacteria were also the main keystone taxa in the bacterial community networks under mowing.</span> </li> <li><span>Our results demonstrate that the magnitude of plant-associated microbial community response to long-term mowing is plant compartment- and trait-variation-dependent, and advance our understanding of the leaf/root microbiome-trait relationships in complex plant communities.</span></li> </ol>
Effects of long-term mowing on leaf- and root-associated bacterial community structures are linked to functional traits in 11 plant species from a temperate steppe
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Response of species diversity and stability of typical steppe plant communities on the Mongolian Plateau to different grazing patterns
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Dominant species drive ecosystem multifunctionality under changed precipitation timing in a semi-arid steppe
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Shortgrass Steppe site, station USGS Breeding Bird Survey Route 17305, Nunn, CO, study of animal species richness of Aves in units of number on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Shortgrass Steppe (SGS) contains animal species richness of Aves measurements in number units and were aggregated to a yearly timescale.
Shortgrass Steppe site, station USGS Bird Breeding Survey area 17901, Rockport, CO, study of animal species richness of Aves in units of number on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Shortgrass Steppe (SGS) contains animal species richness of Aves measurements in number units and were aggregated to a yearly timescale.
FIGURES 11–17 in Ypsolopha admirandella sp. n. (Lepidoptera: Ypsolophidae), a new European species from the steppes of Russia
FIGURES 11–17. Ypsolopha spp. female genitalia: 11–14: Y. colleaguella (after Baraniak, 2007). 11. general view; 12. signum; 13. strengthening of the bursa copulatrix, lateral aspect; 14. denticles on corpus bursae. 15–17: Y. admirandella (orig.). 15. general view; 16. anthrum; 17. signum and denticles on corpus bursae.
FIGURES 18–20 in Ypsolopha admirandella sp. n. (Lepidoptera: Ypsolophidae), a new European species from the steppes of Russia
FIGURES 18–20. Ypsolopha admirandella, biotope in the type locality (photos by Ju. Volkova: 25. July 2019). 18. Akulovka chalk slope; 19. Ephedra bushes directly in the type locality; 20. Fruits of ephedra from Akulovka steppe.
FIGURES 1–10. Ypsolopha spp. males. Scale bar 0.5 in Ypsolopha admirandella sp. n. (Lepidoptera: Ypsolophidae), a new European species from the steppes of Russia
FIGURES 1–10. Ypsolopha spp. males. Scale bar 0.5 cm. 1. Y. colleaguella, imago paratype (ZMHUB); 2. Y. admirandella, imago holotype (LSU); 3, 4. Y. colleaguella, genitalia and top of gnathos enlarged (4); 5–7. Y. admirandella, holotype genitalia (5), top of gnathos (6) and uncus branches (7) enlarged; 8. Y. colleaguella, aedeagus and anellus scobination enlarged; 9. Y. admirandella, holotype aedeagus; 10. Y. admirandella, labels of the holotype; orig. and after Baraniak, 2007 (1, 3, 4, 8).
Data from: Phosphorus amendment mitigates nitrogen addition-induced phosphorus limitation in two plant species in a desert steppe, China
Background and aims: The increasing deposition of atmospheric nitrogen (N) due to anthropogenic activities has significantly enhanced N inputs to ecosystems, resulting in an imbalance in the N: phosphorus (P) ratios in plants and soils. This study aimed to determine whether, and to what extent, P addition alleviates N-induced P limitation in a desert steppe ecosystem. Methods: We conducted a multi-level N:P supply experiment (i.e., constant N with varied P-addition levels) for a grass species, Pennisetum centrasiaticum, and a N-fixing species, Glycyrrhiza uralensis. Results: With increasing amounts of P addition (thereby decreasing the N:P ratio), green-leaf P concentrations of the two species studied tended to increase, while P-resorption proficiency and efficiency tended to decrease. There were no consistent trends in green-leaf N concentrations in response to P addition. However, both species exhibited high N-resorption proficiency, especially in G. uralensis, with high P addition. Generally, the carbon (C):P and N:P ratios both in soils and in green leaves had positive relationships with green-leaf N concentration and P-resorption proficiency of P. centrasiaticum as well as P-resorption traits of G. uralensis, but negative relationships with green-leaf P concentrations in both species. Conclusions: Our study indicates that P addition can alter P-conservation strategy and thereby releasing plant species from the N-induced imbalance of N:P ratios. However, large amounts of P addition could overcompensate and pose a risk of N limitation in desert steppe ecosystems.
Data from: Multi-dimensional patterns of variation in root traits among coexisting herbaceous species in temperate steppes
1. Characterizing patterns of variation in plant traits across species and environmental gradients is critical for understanding performance of species in ecosystems. One-dimensional pattern of variation has been demonstrated in leaf traits, which is known as the leaf economic spectrum. However, it is unclear whether such a spectrum exists for root traits. 2. For roots of 15 species from temperate grasslands, we determined respiration rate, relative growth rate, lifespan as well as 10 morphological, chemical and anatomical root traits. We further evaluated pairwise and multiple-trait relationships by the Pearson's correlation and principle component analysis including phylogenetic contrasts. 3. We found that root functions were related to three clusters of variation. Root respiration rate and relative growth rate were positively correlated with average root diameter, but they were negatively correlated with specific root length. In contrast, root lifespan was not correlated with average root diameter, but it was positively correlated with specific root length. These results are inconsistent with the presumption of the root economic spectrum. 4. The principle components analysis revealed a multi-dimensional pattern of variation in root traits among the 15 coexisting herbaceous species. Moreover, species within the same phylogenetic clades tended to have similar root trait syndromes. Most of the root traits exhibited a significant phylogenetic signal. 5. Synthesis. Our results do not support a one-dimensional root economic spectrum in the coexisting herbaceous species of temperate grasslands. In contrast, the pattern of variation in root traits was multi-dimensional. We further demonstrated that species in different phylogenetic clades possess diverse root trait syndromes for efficient resource acquisition. Our findings provide a next step in understanding root functions and plant strategies in temperate grasslands.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
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