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276 results for “Plant Biology”
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. 3 in Laboratory evaluations of the foraging success of Tamarixia radiata (Hymenoptera: Eulophidae) on flowers and extrafloral nectaries: potential use of nectar plants for conservation biological control of Asian citrus psyllid (Hemiptera: Liviidae)
Fig. 3. Choice of cups with either unscented sucrose solution or with bananascented sucrose solution made by Tamarixia radiata following a pre-test exposure to either 1.0 M sucrose solution or 1.0 M sucrose solution and banana flavor extract (G-test; ** = P ≤ 0.01; NS = not significant).
Fig. 1 in Laboratory evaluations of the foraging success of Tamarixia radiata (Hymenoptera: Eulophidae) on flowers and extrafloral nectaries: potential use of nectar plants for conservation biological control of Asian citrus psyllid (Hemiptera: Liviidae)
Fig. 1. Diagrammatic representation of nectary architectures presented to Tamarixia radiata in foraging evaluations. Location of nectaries shown in red. A. Cy- athium of euphorbiaceous species with exposed nectaries. B. Partially exposed nectaries as found in buckwheat. C. Partially hidden nectaries as found in alyssum. D. Partially exposed nectaries covered with trichomes as found in marjoram. E. Hidden nectaries as found in composites. Drawings are only indicative of size and spatial relationships and are not to scale.
Fig. 2 in Laboratory evaluations of the foraging success of Tamarixia radiata (Hymenoptera: Eulophidae) on flowers and extrafloral nectaries: potential use of nectar plants for conservation biological control of Asian citrus psyllid (Hemiptera: Liviidae)
Fig. 2. Mean (± SE) feeding time of Tamarixia radiata when presented with different concentrations of sugars commonly occurring in nectar (sucrose, fructose, glucose) and honeydew (melizitose, raffinose). Bars within the same concentration having different letters are different at P ≤ 0.05 (ANOVA).
Text-fig. 4. A – Alasia sp., pollen ornamentation, compared with B – extant Quercus castaneifolia C.A. Mey (courtesy of Natalia Naryshkina, Institute of Biology and Soil Science, Vladivostok), with similar verrucate – scabrate elements. Scale bar 1 µm. in In Situ Pollen Of Alasia, A Supposed Staminate Inflorescence Of Trochodendroides Plant
Text-fig. 4. A – Alasia sp., pollen ornamentation, compared with B – extant Quercus castaneifolia C.A. Mey (courtesy of Natalia Naryshkina, Institute of Biology and Soil Science, Vladivostok), with similar verrucate – scabrate elements. Scale bar 1 µm.
Figure 3 in Morphology of immature stages, biological parameters and life table of Microtechnites bractatus (Hemiptera: Miridae) on different host plants
Figure 3 Average survival of Microtechnites bractatus nymphs fed with alfalfa, white clover, potato, wheat, and beans under laboratory conditions (25 ± 2°C, photoperiod 12L:12D). *Lines followed by different letters differ from each other by the paired Mentex-Cox test (Log Rank) (df=1, p<0.05).
Figure 2 in Morphology of immature stages, biological parameters and life table of Microtechnites bractatus (Hemiptera: Miridae) on different host plants
Figure 2 Five nymphal instars of Microtechnites bractatus: (A) first instar; (B) second instar; (C) third instar; (D) fourth instar; (E) fifth instar reduced wing pads for adult brachypterous (female); (F) elongated fifth-instar wing pads for adult macropterous (male).
Figure 1 in Morphology of immature stages, biological parameters and life table of Microtechnites bractatus (Hemiptera: Miridae) on different host plants
Figure 1 Eggs of Microtechnites bractatus oviposited on bean plants,Phaseolus vulgaris L. (A) egg recently oviposited and removed from the plant; (B) seven-day-old egg removed from the plant; (C) newly oviposited eggs; (D) eggs after seven days of oviposition.
Figure 3 in The determination some biological parameters of Phenacoccus madeirensis Green (Hemiptera: Pseudococcidae) on vegetable plants
Figure 3. Survival ratio and life table parameters of Phenacoccus madeirensis on Eggplant (Adana Topağı).
Fig. 2 in Biology of Spodoptera eridania and Spodoptera cosmioides (Lepidoptera: Noctuidae) on different host plants
Fig. 2. Number of eggs (mean ± SE) of Spodoptera cosmioides on different sectors of the host canopy (a and c) and host species (b and d) in no-choice (a and b) and free-choice (c and d) tests. Means followed by the same letter did not differ between canopy sectors (bottom, middle, and upper) or different hosts (Tukey's HSD test, p ≤ 0.05).
Fig. 1 in Biology of Spodoptera eridania and Spodoptera cosmioides (Lepidoptera: Noctuidae) on different host plants
Fig. 1. Number of eggs (mean ± SE) of Spodoptera eridania on different sectors of the host canopy (a and c) and host species (b and d) in no-choice (a and b) and free-choice (c and d) tests. Means followed by the same letter did not differ between canopy sectors (bottom, middle, and upper) or different hosts (Tukey's HSD test, p ≤ 0.05).
Рис. 1–6. Lixus pulverulentus. 1 – биотоп, ассоциация Cirsium acanthoides; 2 – Λичинка внутри стебΛя кормового растения; 3 – моΛоÃой жук внутри стебΛя кормового растения; 4 – гоΛова Λичинки; 5 – внешний виà Λичинки; 6 – внешний виà кукоΛки. Figs 1–6. Lixus pulverulentus. 1 – biotope, Cirsium acantoides association; 2 – larva within the stalk of the host plant; 3 – young beetle inside the stalk of the host plant; 4 – head of the larva; 5 – habitus of the larva; 6 – habitus of the pupa. in Description of the preimaginal stages and biology of the weevil Lixus (Dilixellus) pulverulentus (Scopoli, 1763) (Coleoptera: Curculionidae: Lixini)
Рис. 1–6. Lixus pulverulentus. 1 – биотоп, ассоциация Cirsium acanthoides; 2 – Λичинка внутри стебΛя кормового растения; 3 – моΛоÃой жук внутри стебΛя кормового растения; 4 – гоΛова Λичинки; 5 – внешний виà Λичинки; 6 – внешний виà кукоΛки. Figs 1–6. Lixus pulverulentus. 1 – biotope, Cirsium acantoides association; 2 – larva within the stalk of the host plant; 3 – young beetle inside the stalk of the host plant; 4 – head of the larva; 5 – habitus of the larva; 6 – habitus of the pupa.
Long Term Research in Environmental Biology (LTREB): California vernal pool plant community ecology and restoration, 2000-2017
This data set includes annual vegetation data and selected water depth data collected during the period 2000-2017 from vernal pool basins that were constructed in 1999 as part of a large-scale vernal pool mitigation effort at Travis Air Force Base, California. The constructed pools covered an area of about 15 Ha and were located adjacent to a complex of naturally-occurring pools, which were used as reference sites for comparison. Five plant species were intentionally seeded into the pools according to five seeding treatment protocols to assess the influence of order of colonization, frequency of colonization, and dispersal limitation on vernal pool plant community assembly. Because water depth was known to influence plant species distributions, water depth was recorded weekly during the winter wet season in selected years for each constructed and reference pool at the site. Seed plots were 50 cm x 50 cm and were permanently marked and used for repeated sampling of vegetation from 2000-2017. For each plant species that occurred in the plots, the frequency of occurrence was recorded as the number of squares out of a 100-cell grid laid over the plot in which that plant species appeared. For the five species that were planted into the plots, the frequency was recorded, as above, but in addition the number of individuals of that species in the plot was also recorded.
Temporal variation in plant-pollinator interactions, Rocky Mountain Biological Laboratory, CO, USA, 2013 - 2015
These datafiles contain the plant-pollinator interaction data collected by Paul CaraDonna et al. at the Rocky Mountain Biological Laboratory in Gothic, CO, USA during the 2013, 2014 and 2015 growing season. These data were collected to investigate temporal variation in plant-pollinator interactions; specifically, these data were collected in a manner to allow for the construction of weekly plant-pollinator interaction networks in order to investigate fine scale temporal variation in plant-pollinator interactions. The data represent extensive community-wide field observations of animal pollinators visiting flowering plants in a subalpine ecosystem for the majority of the summer growing season (May–September).
Growth and survival of seedlings of 14 species of lowland rainforest trees planted in the La Guaria Annex (Canada Plot) of La Selva Biological Station, Costa Rica, in 1986 and measured every six months or every year until 1992 (Part 1 of 2)
During the 1960s, 1970s, and 1980s, Costa Rica’s old growth forests were being cut to clear land for cattle pastures and large-scale agriculture. Timber concessions were also growing pine, gmelina, and other non-native trees for harvesting. The Costa Rican government was developing plans for a reforestation program and for a Payment for Environmental Services program to combat forest loss. At this time there were no data available on the growth of native trees species. The TRIALS project (starting with the CANADA Plot) was designed by OTS (Organization for Tropical Studies) and the DGF (Dirección General Forestal) to measure the growth and survival of native tree seedlings planted on abandoned pasture lands at the La Selva Biological Station. Data from these seedlings formed the basis of the reforestation law and the Payments of Ecosystem Services (PES) plan and this model was replicated in many other areas of Costa Rica.
Growth and survival of seedlings of 14 species of lowland rainforest trees planted in the La Guaria Annex (Canada Plot) of La Selva Biological Station, Costa Rica, in 1986 and measured every six months or every year until 1992 (Part 2 of 2)
During the 1960s, 1970s, and 1980s, Costa Rica’s old growth forests were being cut to clear land for cattle pastures and large-scale agriculture. Timber concessions were also growing pine, gmelina, and other non-native trees for harvesting. The Costa Rican government was developing plans for a reforestation program and for a Payment for Environmental Services program to combat forest loss. At this time there were no data available on the growth of native trees species. The TRIALS project (starting with the CANADA Plot) was designed by OTS (Organization for Tropical Studies) and the DGF (Dirección General Forestal) to measure the growth and survival of native tree seedlings planted on abandoned pasture lands at the La Selva Biological Station. Data from these seedlings formed the basis of the reforestation law and the Payments of Ecosystem Services (PES) plan and this model was replicated in many other areas of Costa Rica.
Effects of Plant Removal on Mineralization Rates at the Rocky Mountain Biological Laboratory, Gunnison County, Colorado: 2018
The loss of aboveground plant diversity alters belowground ecosystem function; yet, the mechanisms underpinning this relationship and the degree to which plant community structure and climate mediate the effects of plant species loss remain unclear. Here, we explored how plant species loss through experimental removal shaped belowground function in ecosystems characterized by different climatic regimes and edaphic properties. We measured plant community composition as well as potential carbon (C) and nitrogen (N) mineralization through laboratory soil incubations and microbial extracellular enzyme activity in soils collected from four unique plant removal experiments located along an elevational gradient in Colorado, USA, during the summer of 2018. We found that regardless of the identity of the removed species or the climate at each site plant removal decreased the absolute variation in potential N-mineralization rates and marginally reduced the magnitude of N-mineralization rates. While plant species removal also marginally reduced C-mineralization rates, C-mineralization, unlike N-mineralization, displayed sensitivity to the climatic and edaphic differences among sites, where C-mineralization was greatest at the high elevation site that receives the most precipitation annually and contains the largest soil total C pools. Plant removal had little impact on soil enzyme activity. Removal effects were not contingent on the amount of biomass removed annually, and shifts in mineralization rates occurred despite only marginal shifts in plant community structure following plant species removal. Our results present a surprisingly simple and consistent pattern of belowground response to the loss of dominant plant species across an elevational gradient with different climatic and edaphic properties, suggesting a common response of belowground ecosystem function to plant species loss regardless of which plant species are lost or the broader climatic context.
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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.