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7,883 results for “tropics.”
Figs 1–4. Raunolina species, dorsal view. 1–2 – R in First record of the genus Raunolina (Hemiptera: Fulgoroidea: Caliscelidae) from tropical Africa with description of two new species from Sudan and Saudi Arabia
Figs 1–4. Raunolina species, dorsal view. 1–2 – R. remanei sp. nov., paratypes (1 – female; 2 – male); 3 – R. jeddahica sp. nov., holotype; 4 – R. circularis (Linnavuori, 1952), holotype (dissected).
Figs 13–19 in First record of the genus Raunolina (Hemiptera: Fulgoroidea: Caliscelidae) from tropical Africa with description of two new species from Sudan and Saudi Arabia
Figs 13–19. Raunolina remanei sp. nov., holotype, male genitalia. 13 – penis, ventral view; 14 – penis, lateral view; 15 – pygofer, lateral view; 16 – style, lateral view; 17 – capitulum of style, dorsal view; 18 – anal tube, lateral view; 19 – anal tube, dorsal view. Abbreviations: apc – apical part of capitulum of style; phlt – phallobase tooth.
Figs 24–31 in First record of the genus Raunolina (Hemiptera: Fulgoroidea: Caliscelidae) from tropical Africa with description of two new species from Sudan and Saudi Arabia
Figs 24–31. Raunolina jeddahica sp. nov., holotype. 24 – paranotal lobe; 25 – rostrum, lateral view; 26 – penis, lateral view; 27 – penis, caudo-dorsal view; 28 – male anal tube, dorsal view; 29 – style, lateral view; 30 – capitulum of style, dorsal view; 31 – pygofer, lateral view.Abbreviations: apc – apical part of capitulum of style; phlt – phallobase tooth; tc – transverse carina.
Figs 5–12. Raunolina spp. 5–11 – R in First record of the genus Raunolina (Hemiptera: Fulgoroidea: Caliscelidae) from tropical Africa with description of two new species from Sudan and Saudi Arabia
Figs 5–12. Raunolina spp. 5–11 – R. remanei sp. nov., paratypes (5–8 – male; 9–11 – female). 12 – R. arabica (Gnezdilov & Wilson, 2006). 5 – head, pro- and mesonotum, dorsal view; 6 – head and pronotum, lateral view; 7 – head, frontal view; 8 – fore wing; 9 – female anal tube and pygofer, dorsal view; 10, 12 – female genital block, lateral view; 11 – median part of hind margin of female sternite VII, ventral view.
Figs 1–14 in New minute Drilini species significantly extend the distributions of Lolosia and Microselasia (Coleoptera: Elateridae: Agrypninae) in tropical Africa
Figs 1–14. Morphology of Lolosia species. 1–2 – L. gajduskovae sp. nov.: 1 – habitus, dorsal view; 2 – habitus, lateral view. 3–4 – L. smetkovae sp. nov.: 3 – habitus, dorsal view; 4 – habitus, lateral view. 5–6 – antenna, dorsal view: 5 – L. gajduskovae sp. nov.; 6 – L. smetkovae sp. nov. 7–10 – L. gajduskovae sp. nov.: 7 – head and pronotum, dorsal view; 8 – abdominal sternite IX, ventral view; 9 – aedeagus, dorsal view; 10 – aedeagus, lateral view. 11–14 – L. smetkovae sp. nov.: 11 – head and pronotum, dorsal view; 12 – abdominal sternite IX, ventral view; 13 – aedeagus, dorsal view; 14 – aedeagus, lateral view. Scale bars = 1.0 mm (Figs 1–4), 0.5 mm (Figs 5–7, 11), 0.2 mm (Figs 8–10, 12–14).
Figs 15–27 in New minute Drilini species significantly extend the distributions of Lolosia and Microselasia (Coleoptera: Elateridae: Agrypninae) in tropical Africa
Figs 15–27. Morphology of Microselasia species. 15–16 – M. burgeoni (Pic, 1930): 15 – habitus, dorsal view; 16 – habitus, lateral view. 17–18 – M. sormovae sp. nov.: 17 – habitus, dorsal view; 18 – habitus, lateral view. 19–20 – M. burgeoni (Pic, 1930): 19 – apical antennomeres, ventral view, 20 – basal antennomeres, ventral view. 21 – M. sormovae sp. nov., antenna, dorsal view. 22–24 – M. burgeoni (Pic, 1930): 22 – head and pronotum, dorsal view; 23 – abdominal sternite IX, ventral view; 24 – aedeagus, dorsal view. 25–27 – M. sormovae sp. nov.: 25 – head and pronotum, dorsal view; 26 – abdominal sternite IX, ventral view; 27 – aedeagus, dorsal view. Scale bars = 1.0 mm (Figs 15–19), 0.5 mm (Figs 22, 25), 0.2 mm (Figs 20–21, 23–24, 26–27).
Fig. 2 in Fish functional groups in a tropical wetland of the Yucatan Peninsula, Mexico
Fig. 2. Cluster analyses of the functional traits data. Dendrograms show groups for food acquisition (A, B, C, and D) and locomotion (E, F, G, and H). Species identities (IDs) correspond to the first letter of the genus and species names.
Image 1 in The Odonata of Binyo Penyilam, a unique tropical wetland area in Bintulu Division, Sarawak, Malaysia
Image 1. Map of Sarawak showing the location of the Sarawak Planted Forest Project and the Binyo Penyilam Conservation Area.
Plant dispersal strategies of high tropical alpine communities across the Andes
<p>• Dispersal is a key ecological process that influences plant community assembly. Therefore, understanding whether dispersal strategies are associated with climate is of utmost importance, particularly in areas greatly exposed to climate change. We examined alpine plant communities located in the mountain summits of the tropical Andes across a 4000 km latitudinal gradient. We investigated species dispersal strategies and tested their association with climatic conditions and their evolutionary history.</p> <p>• We used dispersal-related traits (dispersal mode and growth form) to characterize dispersal strategies for 486 species recorded on 49 mountain summits. Then we analysed the phylogenetic signal of traits and investigated the association between dispersal traits, phylogeny, climate and space using structural equation modelling and fourth-corner analysis together with RLQ ordination.</p> <p>• A median of 36% species in the communities were anemochorous (wind-dispersed) and herbaceous. This dispersal strategy was followed by the barochory-herb combination (herbaceous with unspecialised seeds, dispersed by gravity) with a median of 26.3% species in the communities. The latter strategy was common among species with distributions restricted to alpine environments.</p> <p>• While trait states were phylogenetically conserved, they were significantly associated with a temperature gradient. Low minimum air temperatures, found at higher latitudes/elevations, were correlated with the prevalence of barochory and the herb growth form, traits that are common among Caryophyllales, Brassicaceae and Poaceae. Milder temperatures, found at lower latitudes/elevations, were associated with endozoochorous, shrub species mostly from the Ericaceae family. Anemochorous species were found all along the temperature gradient, possibly due to the success of anemochorous Compositae species in alpine regions. We also found that trait state dominance was more associated with the climatic conditions of the summit than with community phylogenetic structure. Although the evolutionary history of the tropical Andean flora has also shaped dispersal strategies, our results suggest that the environment had a more predominant role.</p> <p>• Synthesis: We showed that dispersal related traits are strongly associated with a gradient of minimum air temperatures in the Andes. Global warming may weaken this key filter at tropical alpine summits, potentially altering community dispersal strategies in this region and thus, plant community structure and composition.</p>
Run and output files from: Holocene population expansion of a tropical bee coincides with early human colonisation of Fiji rather than climate change
<p><span><span><span><span><span><span><span><span><span><span><span>There is substantial debate about the relative roles of climate change and human activities on biodiversity and species demographies over the Holocene. In some cases, these two factors can be resolved using fossil data, but for many taxa such data are not available. Inferring historical demographies of taxa has become common, but the methodologies are mostly recent and their shortcomings often unexplored. The bee genus <i>Homalictus</i> is developing into a tractable model system for understanding how native bee populations in tropical islands have responded to past climate change. We greatly expand on previous studies using sequences of the mitochondrial gene COI from 474 specimens and between 171 and 3,928 autosomal (DArTSeq) SNP loci from 19 specimens of the native Fijian bee, <i>Homalictus fijiensis</i> (Perkins & Cheesman, 1928), to explore its historical demography using coalescent and mismatch analyses. We ask whether past changes in demography were human- or climate-driven, while considering analytical assumptions. We show that inferred changes in population sizes are too recent to be explained by past climate change. Instead we find that a dramatic increase in population size for the main island of Viti Levu coincides with increasing occupation by humans and their modification of the environment. We found no corresponding change in bee population size for another major island, Kadavu, where human populations and agricultural activities have been historically very low. Our analyses indicate that molecular approaches can be used to disentangle the impacts of humans and climate change on a major tropical pollinator and that stringent analytical approaches are required for reliable interpretation of results. </span></span></span></span></span></span></span></span></span></span></span></p>
FIGURES 13 14 in A new species of Gastropteridae (Gastropoda, Opisthobranchia, Cephalaspidea) from tropical Northeast Australia
FIGURES 13 14: Radula morphology of Siphopteron leah sp. nov. 13: inner and outer laterals; 14: close up of inner lateral showing two denticles at inner margin.
FIGURE 10 in A new genus and six new species of the tropical Camptotypus genusgroup (Hymenoptera: Ichneumonidae; Pimplinae) from northern South America
FIGURE 10. Amazopimpla matogrossoensis Sääksjärvi, Gauld & Jussila, sp. n. The tip of the ovipositor (Holotype female).
FIGURE 5 in A new genus and six new species of the tropical Camptotypus genusgroup (Hymenoptera: Ichneumonidae; Pimplinae) from northern South America
FIGURE 5. Amazopimpla lutea Palacio, Sääksjärvi, Gauld & Jussila, sp. n. Mesosoma, anterior part of metasoma and hind leg, showing colour pattern (Paratype female).
FIGURE 4 in A new genus and six new species of the tropical Camptotypus genusgroup (Hymenoptera: Ichneumonidae; Pimplinae) from northern South America
FIGURE 4. Amazopimpla guayanaensis Sääksjärvi, Gauld & Jussila, sp. n. Mesosoma, anterior part of metasoma and hind leg, showing colour pattern (Holotype female).
FIGURE 1 in A new genus and six new species of the tropical Camptotypus genusgroup (Hymenoptera: Ichneumonidae; Pimplinae) from northern South America
FIGURE 1. Amazopimpla taunoi Sääksjärvi, Palacio, Gauld, Jussila & Salo, sp. n. Whole insect and the tip of the ovipositor (Paratype female).
FIGURES 1 – 4 in tropical Region
FIGURES 1 – 4. Neuzina diminuta. Male. (1) Habitus; (2). Head, frontodorsal view; (3) Head, frontal view; (4) Wing.
FIGURES 4 – 6. Pachamama speciosa. 4 in Pachamama, an uncommon and distinctive new genus of Trichogrammatidae (Hymenoptera: Chalcidoidea) from tropical America
FIGURES 4 – 6. Pachamama speciosa. 4, ♂ antenna. 5, Ψ antenna. 6, male genitalia [detail of apex of genital capsule at left; arrows to paramere (a) and volsellar spines (b)].
FIGURE 12 in New records of sabellids and serpulids (Polychaeta: Sabellidae, Serpulidae) from the Tropical Eastern Pacific
FIGURE 12. Serpulids in the Mexican Pacific. A. Hydroides inermis, operculum; B – C. H. ochotereana, operculum and spine; D. H. panamensis, operculum; E. H. sanctaecrucis, operculum; F. H. similis, operculum; G. H. trompi, operculum; H. Pomatostegus kroyeri, operculum.
FIGURE 11 in New records of sabellids and serpulids (Polychaeta: Sabellidae, Serpulidae) from the Tropical Eastern Pacific
FIGURE 11. Serpulids in the Tropical Eastern Pacific. A. Hydroides cf. amri, operculum and detail of verticil spine (modified of Bastida-Zavala & ten Hove 2003); B. H. brachyacantha, operculum; C. H. crucigera, operculum; D. H. deleoni, operculum; E. H. dirampha, operculum; F – G. H. elegans, sclerotized operculum in aboral view and fleshy operculum in lateral view; H. H. gairacensis, operculum; I. H. glandifera, operculum; J. H. humilis, operculum.
FIGURE 8 in New records of sabellids and serpulids (Polychaeta: Sabellidae, Serpulidae) from the Tropical Eastern Pacific
FIGURE 8. Distribution of Spirobranchus incrassatus, S. minutus, Vermiliopsis multiannulata and Salmacina tribranchiata.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.
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
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
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
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.