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335 results for “carabid beetles”
Fig. 4 in Assemblages of carabid beetles (Coleoptera: Carabidae) as zoo-indicator of water tourism impact on forest - lake ecotones
Fig. 4. Cluster analysis of the study sites (euclidic distances, Ward˙s method) based on carabid beetle assemblages
Fig. 3 in Assemblages of carabid beetles (Coleoptera: Carabidae) as zoo-indicator of water tourism impact on forest - lake ecotones
Fig. 3. Model of state of carabid beetle assemblages in pine woodlands (B) and alder woodlands (A) in control area (0), medium pressure (1) and high pressure (2).
Fig.2 in Assemblages of carabid beetles (Coleoptera: Carabidae) as zoo-indicator of water tourism impact on forest - lake ecotones
Fig.2. Whittaker diagrams of species-abundance of carabid species in alder woodland (left side) and pine woodlands (right side).
Multiscale drivers of carabid beetle (Coleoptera: Carabidae) assemblages in small European woodlands
<p><strong>Aim </strong>The spatiotemporal connectivity of forest patches in lowland agricultural landscapes and their age matter to explain current biodiversity patterns across regional as well as biogeographical extents, to the point that it exceeds the contribution of macroclimate for plant diversity in the understory of temperate forests. Whether this holds true for other taxonomic groups remains largely unknown. Yet, it has important consequences for ecosystem functioning and the delivery of ecosystem services. Focusing on carabid beetle assemblages, we assessed the relative importance of macroclimatic, landscape, and patch attributes on driving local species richness (-diversity) and species dissimilarity between patches (-diversity).</p> <p><strong>Location</strong> Deciduous forest patches in seven regions along a 2,100-km long latitudinal gradient across the European temperate forest biome, from southern France to central Sweden.</p> <p><strong>Methods</strong> We sampled 221 forest patches in two 55-km landscape windows with contrasting management intensities. Carabid beetles were classified into four habitat-preference guilds: forest-specialist, forest-generalist, eurytopic, and open-habitat species. We quantified the multi-level environmental influence using mixed-effects models and variation partitioning analysis.</p> <p><strong>Results</strong> We found that both - and -diversity were primarily determined by macroclimate, acting as a large-scale ecological filter on carabid assemblages among regions. Forest-patch conditions, including biotic and abiotic heterogeneity as well as patch age (but not patch size), increased -diversity of forest species. Landscape management intensity weakly influenced -diversity of forest species, but increased the number of non-forest species in forest patches. Beta-diversity of non-forest species increased with patch heterogeneity and decreased with landscape management intensity.</p> <p><strong>Main conclusions</strong> Our results highlight the leading role of broad macroclimatic gradients over local and landscape factors in determining the composition of local carabid communities, thereby shedding light on macroecological patterns of arthropod assemblages. This study emphasizes the urgent need for preserving ancient forest patches embedded in agricultural landscapes, even the small and weakly connected ones.</p>
Fig. 1 in Carabid beetle (Coleoptera: Carabidae) diversity in agricultural and post-agricultural areas in relation to the surrounding habitats
Fig. 1. Scheme of the research object "Krzywda" (a) and location of the study sites (1-8) (b).
Fig. 1 in Distribution of carabid beetles in agroecosystems across spatial scales - A review
Fig. 1. Nested relations between the spatial levels (after Ettema, Wardle (2002), with changes).
Inconsistent responses of carabid beetles and spiders to land-use intensity and landscape complexity in Northwestern Europe
<p>Reconciling biodiversity conservation with agricultural production requires a better understanding of how key ecosystem service providing species respond to agricultural intensification. Carabid beetles and spiders represent two widespread guilds providing biocontrol services. Here we surveyed carabid beetles and spiders in 66 winter wheat fields in four Northwestern European countries and analyzed how the activity density and diversity of carabid beetles and spiders were related to crop yield (proxy for land-use intensity), percentage cropland (proxy for landscape complexity) and soil organic carbon content, and whether these patterns differed between dominant and non-dominant species. Less than 17% of carabid or spider species were classified as dominant, which accounted for more than 90% of individuals respectively. We found that carabids and spiders were generally related to different aspects of agricultural intensification. Carabid species richness was positively related with crop yield and evenness was negatively related to crop cover. The activity density of non-dominant carabids was positively related with soil organic carbon content. Meanwhile, spider species richness and non-dominant spider species richness and activity density were all negatively related to percentage cropland. Our results show that practices targeted to enhance one functionally important guild may not promote another key guild, which helps explain why conservation measures to enhance natural enemies generally do not ultimately enhance pest regulation. Dominant and non-dominant species of both guilds showed mostly similar responses suggesting that management practices to enhance service provisioning by a certain guild can also enhance the overall diversity of that particular guild.</p>
Inconsistent responses of carabid beetles and spiders to land-use intensity and landscape complexity in Northwestern Europe
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Multiscale drivers of carabid beetle (Coleoptera: Carabidae) assemblages in small European woodlands
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Trait-modulated decline of carabid beetle occurrence along elevation gradients across the European Alps
Aim: To assess how species traits modulate the responses of carabids to elevation gradients, and how consistent these relationships are across different Alpine regions. Location: Italian Alps. Taxon: Coleoptera, Carabidae (ground beetles) Methods: Carabid communities were sampled using pitfall traps along elevation gradients (697-2840 m) in 416 study sites comprising a range of habitat types. The probability of carabid occurrence was modelled in relation to elevation and its interaction with two key traits, body size and wing development, using a mixed-modelling framework. The consistency of these associations was then assessed across three geographically separated regions. Results: Carabid occurrence declined with increasing elevation, although this relationship was modulated by both body size and wing development. Smaller species were less likely to occur than larger-bodied species at lower elevations. There was a steep decline in occurrence of larger species from low to high elevation, but a slight increase in smaller species, when considering all regions combined. All wing development types declined with elevation, most notably for brachypterous (reduced wings) species. However, these patterns also varied regionally, especially for wing development, indicating that trait-elevation interactions are not geographically consistent. Habitat could not explain the differences between regions for body size, but was likely an important driver of regional differences in the role of wing development on carabid occurrence. Main conclusions: Species traits are important in explaining the distribution of carabids along elevation gradients in mountains, and they may help to identify the species that are the most vulnerable, and the most resilient, to future environmental change. Increased probability of occurrence of smaller species at higher elevations suggests that they may be particularly vulnerable to environmental change in the future. However, the difference in responses to elevation between regions has important implications for modelling species distributions, as it suggests low model transferability, i.e. a trait-based model derived from one region cannot necessarily be used to project relative elevational shifts in a wider area.
FIGURE 1. Minicaraboacarus quadridiscalis n. gen., n in A new genus and species of mites of the family Caraboacaridae (Acari: Heterostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Iran
FIGURE 1. Minicaraboacarus quadridiscalis n. gen., n. sp. female: 1, dorsum of the body. scale bar 50μ.
FIGURES 3–6. Minicaraboacarus quadridiscalis n. gen., n in A new genus and species of mites of the family Caraboacaridae (Acari: Heterostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Iran
FIGURES 3–6. Minicaraboacarus quadridiscalis n. gen., n. sp. female: 3–6, legs I–IV, respectively. scale bar 20μ.
FIGURES 7–10. Caraboacarus stammeri Krczal, 1959 in A new genus and species of mites of the family Caraboacaridae (Acari: Heterostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Iran
FIGURES 7–10. Caraboacarus stammeri Krczal, 1959. female: 7–10, legs I–IV, respectively. scale bar 20μ.
FIGURE 2. Minicaraboacarus quadridiscalis n. gen., n in A new genus and species of mites of the family Caraboacaridae (Acari: Heterostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Iran
FIGURE 2. Minicaraboacarus quadridiscalis n. gen., n. sp. female: 2, venter of the body. scale bar 50μ.
FIGURES 14–16 in A new genus and species of Discozerconidae (Acari: Mesostigmata) from carabid beetles (Coleoptera: Carabidae) in New Zealand
FIGURES 14–16. Berzercon ferdinandi sp. nov., adult male, 14, ventral gnathosoma; 15, gnathotectum; 16, chelicera.
FIGURES 8–11 in A new genus and species of Discozerconidae (Acari: Mesostigmata) from carabid beetles (Coleoptera: Carabidae) in New Zealand
FIGURES 8–11. Berzercon ferdinandi sp. nov., adult female, scanning electron micrographs. 8, venter (scale bar = 500 µm); 9, sternogenital shield (scale bar = 200 µm); 10, opisthogaster (scale bar = 300 µm); 11, ventral gnathosoma (scale bar = 200 µm).
FIGURES 4–7 in A new genus and species of Discozerconidae (Acari: Mesostigmata) from carabid beetles (Coleoptera: Carabidae) in New Zealand
FIGURES 4–7. Berzercon ferdinandi sp. nov., adult female. 4, leg I; 5, leg II; 6, leg III; 7, leg IV. Leg setae are partially labelled to aid orientation; see description for formulae.
FIGURES 17–22 in A new genus and species of Discozerconidae (Acari: Mesostigmata) from carabid beetles (Coleoptera: Carabidae) in New Zealand
FIGURES 17–22. Berzercon ferdinandi sp. nov., adult male, scanning electron micrographs. 17, venter (scale bar = 1000 µm); 18, sternogenital shield (scale bar = 200 µm); 19, opisthogaster (scale bar = 200 µm); 20, hypostome, right hand side (scale bar = 30 µm); 21, acrotarsus and pretarsus I (scale bar = 50 µm); 22, tarsus IV, arrows point to spatulate setae (scale bar = 100 µm).
FIGURES 17–20 in A new genus and species of Schizogyniidae (Acari: Mesostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Ukraine
FIGURES 17–20. Photomicrographs of Euroschizogynium calvum sp. nov., female: 17. ventral view; 18. sternal shield; 19. membranous area; 20. apex of tarsus of leg II.
FIGURES 11–16 in A new genus and species of Schizogyniidae (Acari: Mesostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Ukraine
FIGURES 11–16. Euroschizogynium calvum sp. nov., female: 11, genital and ventrianal shields of paratype, scale bar = 250 Μm; 12, gnathotectum of paratype, scale bar = 100 Μm. Male: 13, holoventral shield, scale bar = 100 Μm; 14, gnathosoma, ventral view, scale bar = 100 Μm; 15, gnathotectum, scale bar = 100 Μm; 16, chelicera, scale bar = 100 Μm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
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The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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