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107 results for “temperate region”
Figure 13 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 13. Optical micrographs of different species of Macrothrix. (A) M. propinqua, lectotype in lateral view; (B) tip of antenna I; (C) head; (D) antenna II; (E) postabdomen; (F) postabdominal seta; (G, H) M. sarsi, holotype in lateral view and its head. No scale bars were taken during photographing.
Figure 10 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 10. Macrothrix oviformis from unknown locality in South Georgia (paralectotypes of M. propinqua). (A) Antenna II of adult female; (B–H) setae of antenna II; (J) seta on proximal segment of its endopod; (K–N) proximal, medium, distal portion, and tip of this seta, respectively; (O) antenna II of adult male. Scale bars: 0.1 mm.
Figure 11 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 11. Macrothrix oviformis, limbs of parthenogenetic female from unknown locality in South Georgia (paralectotype of M. propinqua). (A) Limb I; (B, C) its distal portion and smallest seta of inner-distal lobe; (D, E) limb II and its proximal portion; (F, G) limb III and its inner part; (H, I) limb IV and its inner part; (J) limb V. Scale bars: 0.1 mm.
Figure 9 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 9. Macrothrix oviformis, parthenogenetic females from unknown locality in South Georgia (lectotype and paralectotypes of M. propinqua). (A, B) Large adult, lectotype of M. propinqua, in lateral and anterior view; (C) head; (D) reticulation of valve; (E) setae at anterior portion of ventral margin; (F, G) setae in medium portion of ventral margin; (H) setae at posterior portion of ventral margin; (I) postabdomen; (J, K) postabdominal claw; outer and inner view; (L) distal portion of postabdomen, ventral view; (M) postabdominal seta; (N, O) antenna I, posterior and outer view. Scale bars: 0.1 mm.
Figure 8 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 8. Macrothrix oviformis, parthenogenetic females from unknown water body near Port Stanley, Falklands (neotype locality of M. ciliata). (A) Large adult; (B) head; (C, D) setae at middle and posterior portion of ventral margin; (E, F) postabdomen and postabdominal claw; (G) antenna I; (H) proximal portion of branches of antenna II; (I–K) seta on proximal segment of endopod in its proximal, medium, and distal portion, respectively; (L) small adult; (M) juvenile (neotype of M. ciliata). Scale bars: 0.1 mm.
Figure 6 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 6. Different species of Macrothrix from the southern hemisphere. (A) M. boergeni, large adult parthenogenetic female, neotype, lateral view; (B, C) its valve margin and antenna II; (D) M. inflata, female in bad state, syntype; (E) M. ciliata, juvenile female, neotype; (F, G) its postero-dorsal angle and antenna II; (H) adult parthenogenetic female from the same locality. No scale bars were taken during photographing.
Figure 7 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 7. Macrothrix oviformis from seepage pools in dry bottom of Lago Argentino, Santa Cruz, Argentina (A–G), Lago Largo, Santa Cruz, Argentina (H, I), ponds a few kilometres south of Rt. E crossing of Rio Mac Lennan, Tierra del Fuego (J–P), and Heywood Lake, Signy Island (Q–V). (A, B) Large parthenogenetic female and its head; (C, D) postabdominal claw in outer and ventral view; (E) postabdominal seta; (F, G) seta on proximal segment of endopod; (H, I) adult parthenogenetic female and its seta on proximal segment of endopod; (J, K) large parthenogenetic female and dorsal margin of other female; (L–N) smaller adult parthenogenetic female, its dorsal margin and seta on proximal segment of endopod; (O, P) juvenile female and its seta on proximal segment of endopod; (Q) juvenile male of prereproductive instar; (R, S) its postabdomen and postabdominal claw; (T, U) antenna I in outer and anterior view; (V) inner-distal lobe of limb I. Scale bars: 0.1 mm.
Figure 4 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 4. Macrothric boergeni, head and thoracic appendages of adult parthenogenetic female from an unnamed pond near Port-aux-Français, Îles Kerguelen. (A) Antenna II; (B–M) its setae; (N) limb I; (O) its distal portion in anterior view; (P) its inner portion; (Q–S) stiff (anterior setae); (T–V) ejector hooks of different individuals. Scale bars: 0.1 mm.
Figure 5 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 5. Macrothric boergeni, thoracic appendages of adult parthenogenetic female from an unnamed pond near Port-aux-Français, Îles Kerguelen. (A–C) Limb II, its distal portion and gnathobase; (D, E) limb III and its inner portion; (F, G) limb IV and its inner portion; (H) seta 1 of inner portion of limb IV; (I) limb V; (J) its inner portion of other individual. Scale bars: 0.1 mm.
Figure 3 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 3. Macrothric boergeni, adult parthenogenetic female from an unnamed pond near Port-aux-Français, Îles Kerguelen. (A, B) Postabdominal claw; (C) antennae I; (D) antenna II; (E) its basal segment and basal portion of branches; (F) setae of antenna II; (G) limb I, inner view; (H) its distal portion; (I) distal portion of limb II. Scale bars: 0.1 (C–E, G); 0.01 mm (A, B, F, H, I).
Figure 1 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 1. Macrothric boergeni, parthenogenetic female from an unnamed pond near Port-aux-Français, Îles Kerguelen. (A) Large adult; (B, C) head; (D) setae in anterior portion of valve ventral margin; (E) middle of ventral margin; (F, G) posterior portion of ventral margin; (H) postabdomen; (I, J) postabdominal claw, outer view; (K) postabdominal claw, inner view; (L, M) antenna I in lateral and anterior view; (N) its distal end; (O) aesthetascs; (P) juvenile. Scale bars: 0.1 mm.
Figure 2 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 2. Macrothric boergeni, adult parthenogenetic female from an unnamed pond near Port-aux-Français, Îles Kerguelen. (A) Lateral view; (B) latero-ventral view; (C) anterior view; (D) setae at ventral margin of valve; (E) dorsal head pore; (F) mandibular articulation; (G, H) postabdomen, lateral and dorsal view. Scale bars: 0.1 mm (A–D, G, H); 0.01 (E, F).
Tree diversity across multiple scales and environmental heterogeneity promote ecosystem multifunctionality in a large temperate forest region
<p><strong>Aim</strong>: Biodiversity across different scales provides multidimensional insurance for ecosystem functioning. Although the positive effects of local scale (α-diversity) biodiversity on ecosystem multifunctionality are widely accepted, species turnover across communities (β-diversity) which is often an important driver of ecosystem functioning did not receive the same attention. This study broadens the understanding of how multiple attributes of biodiversity maintain ecosystem multifunctionality from local to regional scales, across diverse environmental gradients.</p> <p><strong>Location</strong>: North-eastern China.</p> <p><strong>Time period</strong>: 2017.</p> <p><strong>Major taxa studied</strong>: Woody plants.</p> <p><strong>Methods</strong>: We estimate ecosystem multifunctionality using both averaging and modified multiple thresholds (50%, 70% and 90%) approaches. Multiple dimensions of biodiversity across varying spatial scales were measured within the framework of Hill‒Chao numbers. Linear and nonlinear models were used to evaluate the optimal patterns of multifunctionality and biodiversity along the latitude. Using variance decomposition, structural equation modeling and linear mixed models, we explored how multiple attributes of tree diversity at varying spatial scales affect multifunctionality, and how these relationships are modulated by environmental drivers.</p> <p><strong>Results</strong>: Our results show that multifunctionality decreased with increasing latitude, mirroring the pattern of tree diversity along latitudinal gradients. Phylogenetic β-diversity and species α-diversity emerged as crucial diversity indices for sustaining multifunctionality in these temperate forests. Soil and climatic conditions had either direct effects on multifunctionality, or indirect ones mediated by tree diversity. Environmental heterogeneity played a pivotal role in maintaining high levels of multifunctionality, exerting influence both directly and indirectly via phylogenetic β-diversity.</p> <p><strong>Main conclusions</strong>: This study underscores the positive effects of biodiversity on multifunctionality across multiple dimensions. Based on our findings, we conclude that any design of a forested landscape that is aimed at maximizing multifunctionality should consider maintaining high local diversity as well as forest community heterogeneity at varying scales.</p>
Dataset for the study:"Driving and limiting factors of CH4 and CO2 emissions from coastal brackish-water wetlands in temperate regions"
<p>Dataset used for statistical analysis of the manuscript "Chiapponi, E., Silvestri, S., Zannoni, D., Antonellini, M., and Giambastiani, B. M. S.: Driving and limiting factors of CH<sub>4</sub> and CO<sub>2</sub> emissions from coastal brackish-water wetlands in temperate regions, EGUsphere, https://doi.org/10.5194/egusphere-2023-605, 2023."</p> <p>The dataset include:</p> <ul> <li>CO2 and CH4 fluxes retrived with a portable fluximeter from soils and standing waters</li> <li>environemntal parameters ( T of air and water, Electrical Conductivity (EC), irradiance and water depth </li> </ul> <p>To cite content from this repository: "Chiapponi, E., Silvestri, S., Zannoni, D., Antonellini, M., and Giambastiani, B. M. S.: Dataset for the study:"Driving and limiting factors of CH4 and CO2 emissions from coastal brackish-water wetlands in temperate regions", EGUsphere, 10.5281/zenodo.10390803."</p> <p> </p>
Chronic anthropogenic disturbance mediates the biodiversity-productivity relationship across stand ages in a large temperate forest region
<div>Temperate forests, especially those in the densely populated regions of the world, are experiencing increasing levels of habitat degradation and biological impoverishment due to subtle but pervasive chronic anthropogenic disturbances including frequent and continuous grazing and extraction of non-timber forest products. However, the effects of these subtle, chronic disturbances on the biodiversity-productivity relationship have rarely been examined especially in forests at different development stages. Accordingly, this study explores how chronic anthropogenic disturbance affects the relationship between tree species diversity and forest productivity at different stand development stages in a large temperate forest region.</div> <div> </div> <div>We used the human footprint index as a proxy for chronic human disturbance. Hierarchical Bayesian models were employed to assess the effects of chronic human disturbance on the relationship between tree diversity and forest productivity across different stand age. Several measures of diversity were employed, including taxonomic, functional and phylogenetic diversity.</div> <div> </div> <div>Forest productivity consistently increased with taxonomic, functional and phylogenetic biodiversity; these biodiversity facets were the main drivers of forest productivity compared to stand age, chronic human disturbance, and climate. However, the magnitude at which productivity increases with the increments of taxonomic and functional diversity diminishes with the increasing chronic disturbance, especially in younger stands. The effects of phylogenetic diversity on productivity did not vary with chronic disturbance, regardless of stand age.</div> <div> </div> <div> <strong>Synthesis and applications:</strong> Chronic human disturbance in a large temperate forest region reduces the increase in community productivity due to different facets of biodiversity, especially in young forests. The evidence suggests that the mitigation of chronic human disturbance and the conservation of biodiversity will be effective in sustaining essential ecosystem functions.</div>
Raw data: Temperature and water availability drive insect seasonality across a temperate and a tropical region
<p>The more insects there are, the more food there is for insectivores and the higher the likelihood of insect-associated ecosystem services. Yet, we lack insights into the drivers of insect biomass over space and seasons, both for tropical and temperate zones. We used 245 Malaise traps, managed by 191 volunteers and park guards, to characterise year-round flying insect biomass in a temperate (Sweden) and a tropical (Madagascar) country. Surprisingly, we found that local insect biomass was similar across zones. In Sweden, local insect biomass increased with accumulated heat and varied across habitats, while biomass in Madagascar was unrelated to the environmental predictors measured. Drivers behind seasonality partly converged: In both countries, the seasonality of insect biomass differed between warmer and colder sites and wetter and drier sites. In Sweden, short-term deviations from expected season-specific biomass were explained by week-to-week fluctuations in accumulated heat, rainfall, and soil moisture, whereas in Madagascar, weeks with higher soil moisture had higher insect biomass. Overall, our study identifies key drivers of the seasonal distribution of flying insect biomass in a temperate and tropical climate. This knowledge is key to understanding the spatial and seasonal availability of insects — as well as predicting future scenarios of insect biomass change.</p>
Figure 24 in Revision of the hirsuticornis-like species of Macrothrix Baird, 1843 (Cladocera: Anomopoda: Macrothricidae) from Subantarctic and temperate regions of the southern hemisphere
Figure 24. Distribution of five species of Macrothrix in the southern hemisphere.
Data from: The potential role of temperate Japanese regions as refugia for the coral Acropora hyacinthus in the face of climate change
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Tree diversity across multiple scales and environmental heterogeneity promote ecosystem multifunctionality in a large temperate forest region
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Raw data: Temperature and water availability drive insect seasonality across a temperate and a tropical region
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.