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370 results for “seasonal forest”
FIGURE 1 in A new cryptic species of Oreobates (Anura: Craugastoridae) from the seasonally dry tropical forest of central Brazil
FIGURE 1. Consensus tree of Bayesian (A) and maximum likelihood (B) phylogenetic trees inferred from the combined dataset of 2132 bp of the 12S, 16S, RAG-1 and TYR genes. Branches values correspond to posterior probabilities in Bayesian inference (A) and bootstrap in maximum likelihood (B). Only values higher than 0.95 (BC) and 70% (ML) were considered. Branches in red indicate specimens of the new species (Oreobates antrum sp. nov.).
FIGURE 2 in A new cryptic species of Oreobates (Anura: Craugastoridae) from the seasonally dry tropical forest of central Brazil
FIGURE 2. Oreobates antrum sp. nov. Dorsal (A) and lateral (B) views of the head, palmar (C) and plantar (D) views of the Holotype (MNRJ 91628). Bars = 3 mm.
FIGURE 4. Argythamnia estacionalis. A in New species of Argythamnia (Euphorbiaceae) restricted to Seasonal Forest of Brazil, with morphological and phylogenetic support
FIGURE 4. Argythamnia estacionalis. A. Flowering branch; B. Adaxial surface of the leaf; C. Detail of adaxial surface of the leaf glabrescent; D. Abaxial surface of the leaf; E. Leaf pubescence on the abaxial surface; F. Pistillate specimen; G. Staminate specimen; H. Staminate flower; I. Anthophore (sepals and petals removed for image capture); J. Pistillate flower. (A, H, I. W.W. Thomas 12361 (CEPEC); B–F, J. M.M. Ornelas 59 (HUEFS); G. M.M. Ornelas 65 (HUEFS)). Illustration by Marilane Luz.
FIGURE 5 in New species of Argythamnia (Euphorbiaceae) restricted to Seasonal Forest of Brazil, with morphological and phylogenetic support
FIGURE 5. Habitat and morphological characteristics of Argythamnia estacionalis. A. Fragment of Seasonally Dry Tropical Forest and Woodlands (SDTFW) in Itambé, Bahia, Brazil; B. Habit of Argythamnia estacionalis; C. Adaxial surface of the leaf; D. Abaxial surface of the leaf; E. Staminate specimen; F. Pistillate specimen. Figure assembled by Márcia M. Ornelas. Voucher specimens: C, D, F, M.M. Ornelas 59 (HUEFS); E. M.M. Ornelas 66 (HUEFS).
FIGURE 6 in New species of Argythamnia (Euphorbiaceae) restricted to Seasonal Forest of Brazil, with morphological and phylogenetic support
FIGURE 6. Geographic distribution of Argythamnia estacionalis in southern Bahia and northeastern Minas Gerais, Brazil.
FIGURE 3 in New species of Argythamnia (Euphorbiaceae) restricted to Seasonal Forest of Brazil, with morphological and phylogenetic support
FIGURE 3. Pollen morphology of the Argythamnia species studied here with SEM. A. Optical section and polar view of A. estacionalis. B. Optical section and polar view of A. desertorum. C. Optical section and polar view of A. simoniana. D. Optical section of the equatorial view of A. estacionalis. E. Optical section of the equatorial view of A. desertorum. F. Optical section of the equatorial view of A. simoniana. Scale bars = 10 μm.
FIGURE 1 in New species of Argythamnia (Euphorbiaceae) restricted to Seasonal Forest of Brazil, with morphological and phylogenetic support
FIGURE 1. Phylogenetic reconstruction presenting the positioning of Argythamnia estacionalis in relation to the other species of the genus.
FIGURE 2 in New species of Argythamnia (Euphorbiaceae) restricted to Seasonal Forest of Brazil, with morphological and phylogenetic support
FIGURE 2. Pollen morphology of the studied species of Argythamnia (Euphorbiaceae) (L.M.). A. & D. Argythamnia estacionalis; B. & E. Argythamnia desertorum; C. & F. Argythamnia simoniana. A–C optical section, polar view; D–E optical section, equatorial view. Scale bars = 10 μm.
Fig. 2 in Seasonal Variations in the Assembly of Dung Beetles (Coleoptera: Geotrupidae and Scarabaeidae) Attracted to Macaque Feces in Temperate Forests in Japan
Fig. 2. Monthly capture rates (number of traps in which dung beetles were captured/total number of trap nights) of dung beetles on Kinkazan and Yakushima Islands, Japan. No sampling was done during June and September on Kinkazan, and during May on Yakushima. Numbers above the bars are the number of trap nights.
FIGURE 1 in A new species of Anthurium Schott (Araceae) in a seasonal semideciduous forest in Espírito Santo State, Brazil
FIGURE 1. Anthurium cachoeirense Theófilo & Sakur. sp. nov. (A) habit, (B) proximal petiole in cross section, (C) mid petiole in cross section, (D) distal petiole in cross section, (E) proximal midrib in cross section, (F) mid midrib in cross section, (G) distal midrib in cross section, (H) inflorescence, (I) lateral tepal in front view, (J) anterior tepal in front view, (K) stamen in front view.
FIGURE 2 in A new species of Anthurium Schott (Araceae) in a seasonal semideciduous forest in Espírito Santo State, Brazil
FIGURE 2. Anthurium cachoeirense Theófilo & Sakur. sp. nov. (A) Habit, (B) Detail of the petiole and peduncule, (C) inflorescence.
FIGURE 3 in Biogeographical identity of the Mesoamerican dominion with emphasis on seasonally dry tropical forests
FIGURE 3. Biogeographical regionalization and area relationships for the Mesoamerican dominion based Cluster analysis (Sorensen dissimilarity coefficient) of species of the seasonally dry tropical forests, on a grid of 0.5° × 0.5° grid-cells. Colours in the dendrogram correspond to those on the map and node labels correspond to the distance (dissimilarity) between clusters. (a) Caribbean sub-region, (b) Mesoamerican tropical rain forests, (c) Mesoamerican tropical dry forests.
FIGURE 4 in Biogeographical identity of the Mesoamerican dominion with emphasis on seasonally dry tropical forests
FIGURE 4. Geographical patterns of species richness of species of the seasonally dry tropical forests for the Mesoamerican dominion, on a grid of 0.5° × 0.5° grid-cells.
FIGURE 5 in Biogeographical identity of the Mesoamerican dominion with emphasis on seasonally dry tropical forests
FIGURE 5. Geographical patterns of species endemism richness of species of the seasonally dry tropical forests for the Mesoamerican dominion, on a grid of 0.5° × 0.5° grid-cells.
FIGURE 2 in Biogeographical identity of the Mesoamerican dominion with emphasis on seasonally dry tropical forests
FIGURE 2. Biogeographical regionalization and area relationships for the Neotropical region based Cluster analysis (Sorensen dissimilarity coefficient) of species of the seasonally dry tropical forests, on a grid of 0.5° × 0.5° grid-cells. Colours in the dendrogram correspond to those on the map and node labels correspond to the distance (dissimilarity) between clusters.
FIGURE 1. Collection sites. 1. Kharkiv Forest-Park. 2. National Nature Park Homilsha Forest. 3 in Two species of nivicolous myxomycetes that formed fruiting bodies during three spring seasons in the lowlands of the Eastern Ukraine
FIGURE 1. Collection sites. 1. Kharkiv Forest-Park. 2. National Nature Park Homilsha Forest. 3. National Nature Park Slobozhanskyi.
Data from: Rainfall seasonality predicts the germination behaviour of a tropical dry-forest vine
Seed dormancy is considered an adaptive strategy in seasonal and/or unpredictable environments because it prevents germination during climatically favourable periods that are too short for seedling establishment. Tropical dry forests are seasonal environments where seed dormancy may play an important role in plant resilience and resistance to changing precipitation patterns. We studied the germination behaviour of seeds from six populations of the Neotropical vine Dalechampia scandens (Euphorbiaceae) originating from environments of contrasting rainfall seasonality. Seeds produced by second greenhouse-generation plants were measured and exposed to a favourable wet environment at different time intervals after capsule dehiscence and dispersal. We recorded the success and the timing of germination. All populations produced at least some dormant seeds, but seeds of populations originating from more seasonal environments required longer periods of after-ripening before germinating. Within populations, larger seeds tended to require longer after-ripening periods than did smaller seeds. These results indicate among-population genetic differences in germination behaviour and suggest that these populations are adapted to local environmental conditions. They also suggest a role of seed size in germination timing within populations. Ongoing changes in seasonality patterns in tropical dry forests may impose strong selection on these traits.
Strong non-growing season N uptake by deciduous trees in a temperate forest: A 15N isotopic experiment
<p>Nitrogen (N) is a critical element for vegetation growth and subsequent carbon (C) and nutrient cycling in terrestrial ecosystems. Plant N uptake, the only pathway for plants to directly obtain N from soils, is a bottleneck process for ecosystem C and N cycling. Ecological theories predict that deciduous trees remain dormant and do not take up N during winters as no growth occurs during this season.</p> <p>In this study, we adopted a <sup><span>15</span></sup>N isotopic experiment to trace N processes throughout the non-growing season in a temperate forest in northern China. The <sup><span>15</span></sup>N-labeled inorganic N (NH<sub><span>4</span></sub><sup><span>+</span></sup> and NO<sub><span>3</span></sub><sup><span>−</span></sup>) and <sup><span>13</span></sup>C<sup><span>15</span></sup>N-labeled organic N (glycine and tyrosine) (equivalent to 150 mg <sup><span>15</span></sup>N m<sup><span>-2</span></sup>) were applied to soils at mid-fall, and the <sup><span>15</span></sup>N recovery in various components of dominant evergreen and deciduous species was analyzed.</p> <p>We found that soil N transformation remained active in the winter and microbial N immobilization reached its peak in late winter. Surprisingly, deciduous species maintained a high N uptake that was comparable with the evergreen species throughout the non-growing season. Perennial herbs did not take up N until the next spring. All plant species acquired inorganic N and simple amino acids, while only the tree species utilized complex amino acids. Throughout the non-growing season, evergreen and deciduous trees showed higher uptake rates for NH<sub><span>4</span></sub><sup><span>+</span></sup> and glycine than NO<sub><span>3</span></sub><sup><span>−</span></sup> and tyrosine, while deciduous shrubs and herbs showed a stronger preference for NO<sub><span>3</span></sub><sup><span>−</span></sup> over other N forms.</p> <p><i>Synthesis: </i>The finding that deciduous trees have strong N uptake in the non-growing season challenges the conventional viewpoint that deciduous trees remain dormant during non-growing seasons. This mechanism might supplement the algorithm in the model representation of N-limited temperate forest ecosystems.</p>
FIGURE 2 in Stigmaphyllon caatingicola (Malpighiaceae), a new species from Seasonally Dry Tropical Forests in Brazil
FIGURE 2. Stigmaphyllon caatingicola: A. detail of the abaxial surface of entire leaves, B. detail of the adaxial surface of lobed leaves, C. flowering branches, D. detail of the inflorescence, E. detail of a sepal with oil glands, F. lateral and posterior petals, G. androecium with stamens connate at base and enlarged (androecium opened at the stamen opposite to the anterior sepal), H. detail of the gynoecium, I. detail of the samaroid mericarp (based on R.F.Almeida 577).
FIGURE 3 in Stigmaphyllon caatingicola (Malpighiaceae), a new species from Seasonally Dry Tropical Forests in Brazil
FIGURE 3. Map of the distribution of Stigmaphyllon caatingicola (circles) and Stigmaphyllon urenifolium (squares).
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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)
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.