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2,052 results for “tree species”
Figs 51-56. Megaselia strynensis n in Scuttle flies (Diptera: Phoridae) from the canopies of ash trees in Norway, with six new species
Figs 51-56. Megaselia strynensis n. sp. male. 51 - left face of lower half of epandrium; 52 - left face of hypandrium and penis complex; 53 - right face of hypopygium; 54 - front tarsus; 55 - hind femur and tibia; 56 - wing.
Figs 1–6. Gymnophora winqvisti Disney female. 1 in Scuttle flies (Diptera: Phoridae) from the canopies of ash trees in Norway, with six new species
Figs 1–6. Gymnophora winqvisti Disney female. 1 – frons; 2 – postpedicels; 3 – palp; 4 – notopleuron; 5 – dorsal face of abdomen; 6 – tergite 7.
Figs 18–23. Megaselia aulaeae n in Scuttle flies (Diptera: Phoridae) from the canopies of ash trees in Norway, with six new species
Figs 18–23. Megaselia aulaeae n. sp. male. 18 – left hypandrial lobe and penis complex; 19 – right face of hypopygium; 20 – front tarsus; 21 – hind femur; 22 – base of hind femur; 23 – wing.
Figs 45–50. Megaselia strynensis n in Scuttle flies (Diptera: Phoridae) from the canopies of ash trees in Norway, with six new species
Figs 45–50. Megaselia strynensis n. sp. male. 45 – frons; 46 – postpedicels, palps and proboscis; 47 – mesopleuron and notopleuron; 48 – scutellum and haltere; 49 – left face of abdomen; 50 – left face of hypopygium.
Figs 1–4. Megaselia ischnopodae n in A new species of Megaselia Rondani (Diptera: Phoridae) associated with one sex of a dioecious fig tree in Thailand
Figs 1–4. Megaselia ischnopodae n. sp. male: 1 – frons, 2 – antennae, palps and proboscis, 3 – postpedicel, 4 – left propleuron, notopleuron and mesopleuron.
Figs 17–20. Megaselia ischnopodae n in A new species of Megaselia Rondani (Diptera: Phoridae) associated with one sex of a dioecious fig tree in Thailand
Figs 17–20. Megaselia ischnopodae n. sp. female: 17 – sternite 7 and rest of abdomen, 18, – furca, 19 – Dufour's crop mechanism (anterior end to right), 20 – wing.
Figs 21–24. Megaselia ischnopodae n in A new species of Megaselia Rondani (Diptera: Phoridae) associated with one sex of a dioecious fig tree in Thailand
Figs 21–24. Megaselia ischnopodae n. sp. puparium: 21 – general appearance, 22 – anterior cap, 23 – rear end, 24 – left eclosion plate.
Figs 24–27. Megaselia hortenensis n in Scuttle flies (Diptera: Phoridae) from the canopies of ash trees in Norway, with six new species
Figs 24–27. Megaselia hortenensis n. sp., male. 24 – frons; 25 – postpedicels, palps and proboscis; 26 – postpedicel; 27 – mesopleuron and notopleuron;
Data from: Mycorrhizal symbiosis pathway and edaphic fertility frame root economics space among tree species
<p><span>The root economics space (RES) is multidimensional and largely shaped by belowground biotic and abiotic influences. However, how root-fungal symbioses and edaphic fertility drive this complexity remains unclear. </span></p> <p><span>Here, we measured absorptive root traits of 112 tree species in temperate and subtropical forests of China, including traits linked to functional differences between arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) hosts. </span></p> <p><span>Our data, from known mycorrhizal tree species, revealed a 'fungal-symbiosis' dimension distinguishing AM from ECM species. This divergence likely resulted from the contrasting mycorrhizal evolutionary development of AM versus ECM associations. Increased root tissue cortical space facilitates AM symbiosis, whereas increased root branching favors ECM symbiosis. Irrespective of mycorrhizal type, a 'root-lifespan' dimension reflecting aspects of root construction cost and defense was controlled by variation in specific root length and root tissue density, which was fully independent of root nitrogen content. Within this function-based RES, we observed a substantial covariation of axes with soil phosphorus and nitrate levels, highlighting the role played by these two axes in nutrient acquisition and conservation. </span></p> <p><span>Overall, our findings demonstrate the importance of</span><span> evolved mycorrhizal symbiosis pathway and edaphic fertility in framing the </span><span>RES</span><span>, and</span> <span>provide theoretical and mechanistic insights into the complexity of root economics.</span></p>
FIGURE 6. Bayesian inference tree for the the combineid 965 in A new species of the subterranean millipede genus Antrokoreana Verhoeff, 1938 from the Nanatsuoguchi Mine, central Honshu, Japan, and insights into the phylogenetic position of Antrokoreana (Diplopoda, Julida, Nemasomatidae)
FIGURE 6. Bayesian inference tree for the the combineid 965 bp of nuclear 28S rRNA and mitochondrial 16S rRNA marker sequences. Numbers on nodes are the bootstrap values for maximum likelihood ≥ 60% and Bayesian posterior probabilities ≥ 0.95.
Figure 5 in A new species of tree hyrax (Procaviidae: Dendrohyrax) from West Africa and the significance of the Niger-Volta interfluvium in mammalian biogeography
Figure 5. Maximum clade credibility tree of hyraxes derived from the Bayesian analysis of cytochrome c oxidase I (A) and complete mitogenomes (B). Values at nodes represent posterior probability values> 0.9. Tree hyrax lineages are as follows: BB, Bight of Biafra; CC, Central Congo Basin; GE, Upper Guinea East; GW, Upper Guinea West; NV, 'interfluvial', from between the Niger River and the Volta River. Taxonomic abbrevations: Ddor, Dendrohyrax dorsalis; Dint, Dendrohyrax interfluvialis; Hbru, Heterohyrax brucei; Pcap, Procavia capensis. Country abbreviations: Ben, Benin; Bko, Bioko Island, Equatorial Guinea; CIV, Côte d'Ivoire; DRC, Democratic Republic of Congo; Gha, Ghana; Gin, Guinea; Nga, Nigeria; ZAF, South Africa. Further details of samples are presented in the Supporting Information (Table S2).
Figure 4. A in A new species of tree hyrax (Procaviidae: Dendrohyrax) from West Africa and the significance of the Niger-Volta interfluvium in mammalian biogeography
Figure 4. A, plot of component scores on the first (~39% of variation) and third (9%) eigenvectors from principal components analysis of 15 skull variables (Table 3). Polygons show the mutually exclusive groupings of the interfluvial population and its two geographically closest neighbours, Dendrohyrax dorsalis nigricans and the eastern population of Dendrohyrax dorsalis sylvestris. B, phenogram, with Euclidean distances, derived from a cluster analysis of all 17 variables. The interfluvial population forms a distinct cluster with D. d. sylvestris, and that cluster is well separated from the one with the four taxa from east of the Niger River.
Figure 3 in A new species of tree hyrax (Procaviidae: Dendrohyrax) from West Africa and the significance of the Niger-Volta interfluvium in mammalian biogeography
Figure 3. Oscillograms and spectrograms showing the end units of the calls of five subspecies of Dendrohyrax dorsalis (A–E) in contrast to the distinctive end units of the interfluvial population (F). A, D. d. sylvestris from Taï, Côte d'Ivoire; B, D. d. nigricans from Korup, Cameroon; C, D. d. dorsalis from Gran Caldera, Bioko Island; D, D. d. emini from Bili, N. DRC; E, D. d. marmota from Mpanga, Uganda; F, Dendrohyrax interfluvialis (Niger–Volta interfluvial) from Okomu, W. Nigeria.
Figure 6. A, B in A new species of tree hyrax (Procaviidae: Dendrohyrax) from West Africa and the significance of the Niger-Volta interfluvium in mammalian biogeography
Figure 6. A, B, camera-trap images of Dendrohyrax interfluvialis in front of rock crevices at Nyagbo Anyigbe, Volta Region, Ghana, in March 2020: A, at 09.12 h; and B, at 23.30 h. C, view of part of Nyagbo Anyigbe; the hill where hyraxes were photographed is on the left, behind the village.
Figure 2 in A new species of tree hyrax (Procaviidae: Dendrohyrax) from West Africa and the significance of the Niger-Volta interfluvium in mammalian biogeography
Figure 2. Oscillograms and spectrograms comparing the calls of: A, western tree hyrax, Dendrohyrax dorsalis nigricans, from Iko Esai forest, eastern Nigeria; and B, Dendrohyrax interfluvialis (Niger–Volta interfluvial), from Okomu National Park, western Nigeria. In each part of the figure, oscillograms are above and spectrograms below; power spectrums are on the left.
Figure 1 in A new species of tree hyrax (Procaviidae: Dendrohyrax) from West Africa and the significance of the Niger-Volta interfluvium in mammalian biogeography
Figure 1. Point localities from which Dendrohyrax call recordings, skulls and tissue samples used in this study were collected, mapped according to current taxonomy (except for Niger–Volta interfluvial population). Triangles indicate calls; circles, skulls; diamonds, DNA; star, type locality; green, Dendrohyrax dorsalis sylvestris; dark blue, Dendrohyrax dorsalis nigricans; turquoise, Dendrohyrax dorsalis dorsalis; pink, Dendrohyrax dorsalis latrator; red, Dendrohyrax dorsalis emini; black, Dendrohyrax dorsalis marmota; purple, D. dorsalis ssp. undet.; orange, Dendrohyrax interfluvialis (Niger–Volta interfluvial).
FIGURE 39. Neighbor–joining tree for 23 in Review of the genus Leucoma Hübner, 1822 (Lepidoptera: Erebidae: Lymantriinae) from China, with description of two new species
FIGURE 39. Neighbor–joining tree for 23 sequences of 11 species of Leucoma and two species of Lymantria based on K2P distance in DNA barcodes. Numbers on branches represent bootstrap support based on 1000 replicates; scale equals K2P genetic distance.
FIGURE 7. Phylogenetic trees reconstructed using the mtDNA 16S in Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo
FIGURE 7. Phylogenetic trees reconstructed using the mtDNA 16S genes of five Johnius (Johnius) species. Values above the branches are respective bootstrap values from 5000 replications for the Neighbour-Joining (NJ) and Maximum-Likelihood (ML) analyses. Bar indicates genetic distances of 0.02.
Data from: Tree species with conservative foliar nutrient status and strong phosphorus homeostasis are regionally abundant in subtropical forests
<p><span>Foliar </span><span>nitrogen (N) or phosphorus <em>(P)</em> </span><span>status and their </span><span>stoichiometric homeostasis </span><span>are integral parts of the plant nutrient economy </span><span>that determines the success of plant species</span><span> in environments where N or P limits plant growth. </span><span>Despite growing evidence </span><span>for higher predictability of </span><span>stoichiometric </span><span>homeostasis </span><span>of N</span><span> (</span><em><span>H</span></em><sub><span>N</span></sub><span>) than that of P (</span><em><span>H</span></em><sub><span>P</span></sub><span>) on plant species abundance</span><span> in temperate grasslands</span><span>, no previous studies e</span><span>xplicitly examined how foliar N and P status modulate the relationships between </span><span>stoichiometric </span><span>homeostasis and</span><span> species distribution (regional species abundance)</span><span> of woody plants, especially in P-limited (sub)-tropical ecosystems. W</span><span>e hypothesized that species with a conservative foliar nutrient status but a higher </span><em><span>H</span></em><sub><span>P</span></sub><span> (but not</span><span> <em>H</em><sub>N</sub></span><span>) would be regional abundant in </span><span>P-limited</span><span> forest.</span></p> <p><span>We measured foliar N (LNC) and P (LPC) contents of 54 woody species, community composition and soil N and P </span><span>contents across</span><span> 94 forest plots in Chinese subtropical forests. Then we evaluated the species' levels of N and P </span><span>stoichiometric homeostasis</span><span> and their regional abundance to test our hypotheses.</span></p> <p><span><em><span>H</span></em><sub><span>N</span></sub><span> and <em>H</em><sub>P</sub> significantly increased with decreasing LNC and LPC. Foliar nutrient status positively correlated </span><span>with the minimum values of both soil N and P contents, but only negatively associated with the maximum value </span><span>of soil P content, </span><span>indicating that conservative species can occupy a wider range of soil P- than N-based nutrient niche.</span><span> Meanwhile, species abundance negatively correlated with LNC and LPC, and positively correlated with <em><span>H</span></em><sub><span>N</span></sub><span> and <em>H</em><sub>P</sub></span>. However, the structure equation model analysis showed that species abundance increased with decline of LNC but not yet with increased HN. In contrast, species abundance enhanced with increased <span><em>H</em><sub>P</sub> </span>and decreased LPC via <em><span>H</span></em><sub><span>N</span></sub>, rather than directly with a decline of LPC.</span></span></p> <p><span><strong>Synthesis</strong>.</span><span> This study provides empirical evidence that species with conservative foliar nutrient status are more stable in terms of N and P stoichiometric homeostasis, and foliar N and P economy modulate species abundance distribution in different ways. Our results suggest that maintaining strong stoichiometric homeostasis of leaf P, while maintaining conservative economy of N, is a key physiochemical mechanism for shaping species abundance distribution in P-limited forests.</span></p>
FIGURE 8 in Mahechadendron puntecascarillo (Vochysiaceae), a new genus and forest tree species from Colombia
FIGURE 8. Strict consensus tree from the parsimony analysis of Vochysiaceae species based on rbcL data. Numbers indicate bootstrap support above 50%.
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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.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.