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46 results for “Polylepis”
Different functional responses in populations of Polylepis quadrijuga (Rosaceae) as a consequence of anthropogenic disturbance
<p>The monodominant forests of Polylepis quadrijuga, endemic to the páramos of the eastern cordillera in the Colombian Andes, are among the most threatened in South America due to fragmentation and anthropogenic degradation. Despite their role in regulating water flow and forming biodiverse, endemic biotic communities, there are few studies on their functional responses to stress caused by anthropogenic disturbance and climate change. In this study, we evaluate how six different populations of P. quadrijuga with distinct levels of anthropogenic disturbance (low and high) change 11 foliar, stem, and root functional traits. Also, the physicochemical properties of the soils were analyzed, and mycorrhizal colonization was quantified to evaluate how each population responds to the stress conditions in their vital ecosystem. The results indicated that populations with lower disturbance levels exhibit a conservative leaf trait configuration, whereas those with higher disturbance levels adopt an acquisitive strategy, potentially making them more vulnerable. Additionally, we found no functional coordination between above- and below-ground traits. The results also highlight the colonization by arbuscular mycorrhizal fungi (AMF). It is essential to develop strategies tailored to the specific needs of each population to effectively conserve this important ecosystem.</p>
T A B L E A 1 in Reproductive biology of the electric lanternfish Electrona risso (Myctophidae) and the bigscale fishes Melamphaes polylepis and Scopelogadus mizolepis (Melamphaidae)
T A B L E A 1 Oocyte sizes of Electrona risso per reproductive phase (see Table 1).
Merluccius polylepis decontaminated FSCR
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FIGURE 4. Polylepis rocio-rojasii. A in A new species of Polylepis (Rosaceae) from the Bosque de Proteccion Pui-Pui, Peru
FIGURE 4. Polylepis rocio-rojasii. A: Trunk; B: Branch; C: Twig with some leaves (abaxial); D: Twig with 2 leaves (adaxial) and inflorescences; E: Stipular sheath; F: Trifoliolate leaf densely lanuginose (abaxial); G: Leaf sparsely lanuginose with secondary venation immersed (adaxial); H: Fruits (left, lateral view; right, top view). Images by L. Valenzuela from the Holotype LV 28745.
FIGURE 2. Polylepis rocio-rojasii A in A new species of Polylepis (Rosaceae) from the Bosque de Proteccion Pui-Pui, Peru
FIGURE 2. Polylepis rocio-rojasii A: Some individuals of the new species with Chusquea tessellata; B: Branch; C: Trunk with exfoliating rhytidomes D: Trifoliolate leaf and detail channeled petiole, with a tuft of hairs (adaxial); E: Trifoliolate leaf, central leaflet with short petiolule (abaxial). Images by L. Valenzuela.
FIGURE 5 in A new species of Polylepis (Rosaceae) from Santuario Nacional Pampa Hermosa, Peru
FIGURE 5. Niche characterization in the environmental space based on annual mean temperature (AMT °C), annual precipitation (AP mm/year) and elevation. Box plots with different letters (a, b or c) are significantly different based on a post-hoc Tukey test.
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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.