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56 results for “Endangered forest”
Figure 3 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon
Figure 3 Uvariopsis dicaprio. (A) habit, cauliflorous inflorescences on trunk; (B) leafy branch, one season's growth; (C) inflorescence, showing pedicel articulations, bracts and bracteoles; (D) flower, with one petal removed to show the staminal dome; (E) detail of sparse hairs on abaxial petal surface; (F) stamen, different views; (G) junction of base of leaf with stem, showing dome-like axillary bud. All drawn from MacKinnon 51 (K) by MEG GRIFFITHS. Full-size DOI: 10.7717/peerj.12614/fig-3
Figure 4 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon
Figure 4 Global distribution of Uvariopsis dicaprio, together with U. korupensis and U. submontana. Full-size DOI: 10.7717/peerj.12614/fig-4
Figure 1 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon
Figure 1 Uvariopsis dicaprio. Cauliflorous inflorescences on trunk. Photo Lorna MacKinnon. Full-size DOI: 10.7717/peerj.12614/fig-1
Figure 2 in Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon
Figure 2 Uvariopsis dicaprio. Trunk apex with cauliflorous flowers and canopy. Photo Lorna MacKinnon. Full-size DOI: 10.7717/peerj.12614/fig-2
Fig. 5 in Abundance and microhabitat use of the Endangered toad Rhinella yanachaga (Anura: Bufonidae) in the cloud forest of Yanachaga Chemillén National Park, Peru
Fig. 5. Comparisons of the sizes of Rhinella yanachaga individuals. (A) Differences in size of females in dry and wet seasons. (B) Differences in size of males in dry and wet seasons. (C) Differences in size between males and females. (D) Differences in the size of individuals with respect to microhabitats. The different letters indicate significant differences at p ≤ 0.05 according to the Tukey test after GLMM. Error bars represent standard errors.
Fig. 4 in Abundance and microhabitat use of the Endangered toad Rhinella yanachaga (Anura: Bufonidae) in the cloud forest of Yanachaga Chemillén National Park, Peru
Fig. 4. Correlations between the elevation and size of Rhinella yanachaga according to sex. The model presents correlation factors of r2 = 0.34; p = 0.01 for females and r2 = 0.003; p = 0.41 for males. The colors indicate sex (blue for males and red for females) and the shaded areas indicate the 95% confidence limits.
Fig. 2 in Abundance and microhabitat use of the Endangered toad Rhinella yanachaga (Anura: Bufonidae) in the cloud forest of Yanachaga Chemillén National Park, Peru
Fig. 2. Number of Rhinella yanachaga individuals per transect, T1 = 2,800–2,700 m, T2 = 2,700–2,600 m, T3 = 2,600–2,500 m, and T4 = 2,500–2,400 m, according to the elevation gradient for both sexes, in (A) dry season and (B) wet season. (C) Correlation between the abundance of Rhinella yanachaga and elevation for both sexes and seasons. The grey band indicates the 95% confidence limits.
Fig. 3 in Abundance and microhabitat use of the Endangered toad Rhinella yanachaga (Anura: Bufonidae) in the cloud forest of Yanachaga Chemillén National Park, Peru
Fig. 3. Numbers of individuals according to sex and length (SVL) ranges of Rhinella yanachaga in four transects, T1 = 2,800–2,700 m, T2 = 2,700–2,600 m, T3 = 2,600–2,500 m, and T4 = 2,500–2,400 m, according to the elevation gradient in the wet and dry seasons.
Fig. 1 in Abundance and microhabitat use of the Endangered toad Rhinella yanachaga (Anura: Bufonidae) in the cloud forest of Yanachaga Chemillén National Park, Peru
Fig. 1. (A) Map of the study area. The white circle indicates the location of the study site (San Alberto) within Yanachaga-Chemillén National Park, Oxapampa, Pasco; (B) lateral view, (C) ventral view, and (D) dorsal view of Rhinella yanachaga in life. Map by Vladimir Camel (A), photos by Shirley Huamán-Trucios (B–D).
Fig. 2 in Ex-situ conservation of the critically endangered swamp forest crab Parathelphusa reticulata Ng, 1990 (Decapoda: Brachyura: Gecarcinucidae): observations on its reproduction and biology in captivity
Fig. 2. Top view of captive conditions of a, adult crab (CW: 30 mm); b, crablet (CW: 4 mm); c, juvenile crab (CW: 15 mm); d, Setup for pairing individuals. Photographs: Dian Alisha Binte Misba.
Fig. 4 in Ex-situ conservation of the critically endangered swamp forest crab Parathelphusa reticulata Ng, 1990 (Decapoda: Brachyura: Gecarcinucidae): observations on its reproduction and biology in captivity
Fig. 4. Growth of captive Parathelphusa reticulata (F1 generation) over 52 weeks (N = 20). Vertical bars indicate standard deviations.
Restoration thinning permits stems to capitalise on high-rainfall years in a regenerating endangered forest ecosystem
<p><span>1. Passively regenerating native vegetation presents a cost-effective opportunity to sequester carbon and reinstate habitat in heavily cleared agricultural landscapes.</span></p> <p><span>2. However, in some cases a few woody species recolonise in dense, low-diversity stands that are slow to self-thin.</span></p> <p><span>3. Restoration thinning of over-dominant species has been proposed to accelerate ecosystem recovery, but its longer-term efficacy remains uncertain, and is likely to depend strongly on rainfall.</span></p> <p><span>4. This study focuses on a restoration thinning experiment established in 2007 in dense brigalow (<i>Acacia harpophylla</i>) regrowth in Queensland, Australia. Using variation in rainfall between 2007 and 2017, we examined the interactive effects of neighbourhood density and moisture availability on the growth and survival of <i>A. harpophylla. </i></span></p> <p><span>5. We also compared the strength of <i>A. harpophylla</i> density effects on itself to its effects on a sparsely distributed co-occurring tree species (<i>Casuarina cristata</i>) that was codominant in the original forest.</span></p> <p><span>6. Our results provide clear evidence that thinning permits <i>A. harpophylla</i> to grow rapidly during periods of high rainfall, and that interspecific competition between A<i>. harpophylla</i> and <i>C. cristata</i> is relatively weak. As such, thinning of dense <i>A. harpophylla</i> could be combined with seeding or planting of co-occurring tree species with complementary niches to further accelerate forest recovery in this extensive regrowth ecosystem.</span></p>
Final products from "3D MODELING AS A CONSERVATION TOOL TO CHARACTERIZE ENDANGERED SEASONALLY FLOODED ECOSYSTEMS IN THE VOLTA GRANDE DO XINGU, AMAZON FOREST, PARÁ, BRAZIL"
<p>In these .zip folders, you will find the products generated from flight missions carried out between November 7th to 14th, 2021, in the Volta Grande do Xingu, Pará, Brazil. <br>These results are presented as an integral part of the article titled '3D MODELING AS A CONSERVATION TOOL TO CHARACTERIZE ENDANGERED SEASONALLY FLOODED ECOSYSTEMS IN THE VOLTA GRANDE DO XINGU, AMAZON FOREST, PARÁ, BRAZIL' published on the doctoral thesis "Characterization and monitoring of the flooding dynamics and seasonally flooded environments of the Volta Grande do Xingu through remote sensing", available at <a href="https://doi.org/10.11606/T.106.2023.tde-02022024-211517">https://doi.org/10.11606/T.106.2023.tde-02022024-211517</a>. To understand the data processing methodology that led to these results, please refer to the thesis.<br>Each folder represents a flight mission. They are named by date and flight number (DD_MM_YYYY_FLIGHT#).<br>Within each folder, there are six files resulting from the processed flights: The georeferenced orthophoto and Digital Surface Model, which are raster files (.TIFs), the dense point cloud (.las), and the files composing the 3D Model generated by Agisoft Metashape (extensions .OBJ, .MTL, and .JPEG).<br>The .OBJ file is the primary file for visualizing the model, including the three-dimensional mesh formed by the points of the point cloud and containing geometry, texture, and color information. <br>The .MTL file contains the material description associated with the OBJ file and includes information about the visual properties of the model, such as texture, reflections, and materials. <br>The .JPEG files are the texture images used on the Digital Surface Model to generate the 3D model. This information provides the model with its realistic properties.<br>The .OBJ, .MTL and .JPEG files need to be together in the same folder for a complete 3D Model visualization (i.e., shape, color, and texture).<br>When using this data, please cite Affonso, A. A. (2023). <em>Caracterização e monitoramento da dinâmica de alagamento e dos ambientes sazonalmente alagáveis da Volta Grande do Xingu através de sensoriamento remoto</em>. Tese de Doutorado, Instituto de Energia e Ambiente, Universidade de São Paulo, São Paulo. doi:10.11606/T.106.2023.tde-02022024-211517. Recuperado em 2024-04-14, de www.teses.usp.br</p>
Fig. 1 in Ex-situ conservation of the critically endangered swamp forest crab Parathelphusa reticulata Ng, 1990 (Decapoda: Brachyura: Gecarcinucidae): observations on its reproduction and biology in captivity
Fig. 1. Captive breeding facility in the Singapore Botanic Gardens. Photograph: Daniel J. J. Ng.
Spatial drivers of composition and connectivity across endangered tropical dry forests
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Restoration thinning permits stems to capitalise on high-rainfall years in a regenerating endangered forest ecosystem
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FIGURE 1 in The advertisement call of Physalaemus caete Pombal & Madureira, 1997 (Anura Leptodactylidae: Leiuperinae), an endangered species endemic to Brazil's northern Atlantic Forest
FIGURE 1. (A–C) Spectrogram, oscillogram, and amplitude spectrum, respectively, of the advertisement call of Physalaemus caete from Igarassu (state of Pernambuco, northeastern Brazil). The dominant harmonic (H4) and adjacent harmonics (H3 and H5) are indicated. The fundamental and second harmonics are supposedly filtered out (see text). (D) Male voucher of P. caete (CHPUFRPE 5840; SVL = 23.0 mm).
Data from: AFLP diversity and spatial structure of Calycophyllum candidissimum (Rubiaceae), a dominant tree species of Nicaragua's critically endangered seasonally dry forest
The Central American seasonally dry tropical (SDT) forest biome is one of the worlds' most endangered ecosystems, yet little is known about the genetic consequences of its recent fragmentation. A prominent constituent of this biome is Calycophyllum candidissimum, an insect-pollinated and wind-dispersed canopy tree of high socio-economic importance, particularly in Nicaragua. Here, we surveyed amplified fragment length polymorphisms across 13 populations of this species in Nicaragua to elucidate the relative roles of contemporary vs historical factors in shaping its genetic variation. Genetic diversity was low in all investigated populations (mean HE=0.125), and negatively correlated with latitude. Overall population differentiation was moderate (ΦST=0.109, P<0.001), and Bayesian analysis of population structure revealed two major latitudinal clusters (I: 'Pacific North'+'Central Highland'; II: 'Pacific South'), along with a genetic cline between I and II. Population-based cluster analyses indicated a strong pattern of 'isolation by distance' as confirmed by Mantel's test. Our results suggest that (1) the low genetic diversity of these populations reflects biogeographic/population history (colonisation from South America, Pleistocene range contractions) rather than recent human impact; whereas (2) the underlying process of their isolation by distance pattern, which is best explained by 'isolation by dispersal limitation', implies contemporary gene flow between neighbouring populations as likely facilitated by the species' efficient seed dispersal capacity. Overall, these results underscore that even tree species from highly decimated forest regions may be genetically resilient to habitat fragmentation due to species-typical dispersal characteristics, the necessity of broad-scale measures for their conservation notwithstanding.
FIGURE 2. Justicia pusilla M.J. Silva. A. and B in A new and endangered species of Justicia L. (Justicieae-Acanthaceae) from the riparian forests of northern Goiás State, Brazil
FIGURE 2. Justicia pusilla M.J. Silva. A. and B. habitat; C. Habit; D. Portion of plant; E. Inflorescence; F. and G. Flowers. Photographs by M.J. Silva from the holotype.
FIGURE 1. Justicia pusilla M.J. Silva. A in A new and endangered species of Justicia L. (Justicieae-Acanthaceae) from the riparian forests of northern Goiás State, Brazil
FIGURE 1. Justicia pusilla M.J. Silva. A. Habit; B. A portion of branch; C–E. Leaf shapes; F. Adaxial leaf surface showing the trichomes; G. Abaxial leaf surface showing the trichomes; H. Leaf margin; I. Leaf base and petiole; J. Inflorescence; K. Inner surface of the bract; L. and M. Outer surface of the bract; N. Inner surface of the bracteole; O. Outer surface of the bracteole; P. Flower bud; Q. Flower in lateral view; R. Calyx; S. Corolla in frontal view; T. Corolla opened outward; U. Stamen; V. Anthers; W. Gynoecium; X. Stigma (drawings by Cristiano Gualberto, from the holotype).
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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.