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99 results for “flowering phenology”
Data from: Adaptation to climate through flowering phenology: a case study in Medicago truncatula
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Southern hemisphere plants show more delays than advances in flowering phenology
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Data from: Flower phenology as a disruptor of the fruiting dynamics in temperate oak species
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Flowering phenology under climate warming
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Data from: Frost sensitivity of leaves and flowers of subalpine plants is related to tissue type and phenology
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Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non-humid regions
<p>The phenology data in paper published in Functional Ecology by Song et al. 2020, titled Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non-humid regions</p>
Data from: Divergent selection on flowering phenology but not on floral morphology between two closely related orchids
<ol> <li>Closely related species often differ in traits that influence reproductive success, suggesting that divergent selection on such traits contribute to the maintenance of species boundaries.</li> <li>G<i>ymnadenia conopsea</i> ss. and <i>Gymnadenia densiflora</i> are two closely related, perennial orchid species that differ in (1) floral traits important for pollination, including flowering phenology, floral display and spur length, and (2) dominant pollinators. If plant-pollinator interactions contribute to the maintenance of trait differences between these two taxa, we expect current divergent selection on flowering phenology and floral morphology between the two species.</li> <li>We quantified phenotypic selection via female fitness in one year on flowering start, three floral display traits (plant height, number of flowers and corolla size) and spur length, in six populations of <i>G. conopsea</i> s.s. and in four populations of <i>G. densiflora.</i> There was indication of divergent selection on flowering start in the expected direction, with selection for earlier flowering in two populations of the early-flowering <i>G. conopsea </i>s.s. and for later flowering in one population of the late-flowering <i>G. densiflora</i>. No divergent selection on floral morphology was detected, and there was no significant stabilizing selection on any trait in the two species. The results suggest ongoing adaptive differentiation of flowering phenology, strengthening this premating reproductive barrier between the two species.</li> <li> <i>Synthesis</i>: This study is among the first to test whether divergent selection on floral traits contribute to the maintenance of species differences between closely related plants. Phenological isolation confers a substantial potential for reproductive isolation, and divergent selection on flowering time can thus greatly influence reproductive isolation and adaptive differentiation.</li> </ol>
Flowering phenology of Nouelia insignis
<p><i>Nouelia insignis</i> Franch (Asteraceae) is a short, narrow endemic and endangered tree, growing with a natural population in the dry and hot valley of the Jinsha River in the southwest area of China. In this work, flowering phenology (time and duration), floral biology, visit frequency and behavior of pollinators, and pollination characteristics were studied based on investigation in the field and analysis in the laboratory with the help of a stereomicroscope, and the relationship between seed setting rate and reproductive traits, as well as the relationship between flowering time and rainfall before flowering was tested using the method of general linear regression model. The results showed that natural population of<i> N. insignis</i> exhibited high flowering synchrony with relatively stable flowering duration, and the flowering time fluctuated greatly depending on the rainfall 5 months before flowering. The pollination of <i>N. insignis</i> required pollinators, and insect activities played a very important role in the pollination process. However, lack of the pollinators was not a limitation for reproductive fitness in <i>N. insignis</i>, although the number of pollinators was small and the frequency of visits was low. In addition, no pollen limitation was found during pollination. The average seed setting rate of <i>N. insignis</i> in the natural condition was only 1.52%–3.73%, and it was generally affected by changes in flowering phenology between years, and had a higher seed set in early flowering year. The annual variation of seed set might be related to the annual variations of stamen and pistil functions, such as changes of pollen viability and stigma receptivity, which were closely related to flowering time. The results of this study are of value for further conservation actions on natural population of this threatened endemic plant.</p>
Figure 5 in FlorAl biometrics And phenologicAl chArActeriZAtion of flowering And fruiting of the passion fruit PAssiflorA TrinTAE in southwestern BAhiA, BrAZil
Figure 5. Phenograms of Passiflora trintae in an area located in Vitória da Conquista, Bahia, Brazil. A. Flower bud and flowering rates, as well as flowering peak; B. Fruiting peak and rate.
Figure 1 in FlorAl biometrics And phenologicAl chArActeriZAtion of flowering And fruiting of the passion fruit PAssiflorA TrinTAE in southwestern BAhiA, BrAZil
Figure 1. Illustration of Passiflora trintae with vegetative and reproductive parts that show the complete structure of an adult plant.
Data from: Comparison of the genetic determinism of two key phenological traits, flowering and maturity dates, in three Prunus species: peach, apricot and sweet cherry
The present study investigates the genetic determinism of flowering and maturity dates, two traits highly affected by global climate change. Flowering and maturity dates were evaluated on five progenies from three Prunus species, peach, apricot and sweet cherry, during three to eight years. Quantitative trait locus (QTL) detection was performed separately for each year and also by integrating data from all years together. High heritability estimates were obtained for flowering and maturity dates. Several QTLs for flowering and maturity dates were highly stable, detected each year of evaluation, suggesting that they were not affected by climatic variations. For flowering date, major QTLs were detected on linkage groups (LG) 4 for apricot and sweet cherry and on LG6 for peach. QTLs were identified on LG2, LG3, LG4 and LG7 for the three species. For maturity date, a major QTL was detected on LG4 in the three species. Using the peach genome sequence data, candidate genes underlying the major QTLs on LG4 and LG6 were investigated and key genes were identified. Our results provide a basis for the identification of genes involved in flowering and maturity dates that could be used to develop cultivar ideotypes adapted to future climatic conditions.
Observations of flowering phenology in Concord, Massachusetts, USA, 1963-1993
<p>Phenology plays a vital role in understanding the impacts of climate change on plants. Observing and recording the dates that plants are in flower, over periods of years and decades, can elucidate patterns in how plants respond to warming temperatures, shifting precipitation regimes, and other effects of a changing climate. Long-term records of plant phenology are difficult to find. It is often the case that these records do not originate from scientific research studies but instead are the product of an individual's interest in observing natural phases in their local environment. Pennie Logemann (1918-2011) was a resident of Concord, Massachusetts, United States and a landscape designer. From 1963-1993 she recorded the flowering times of plants in her woodland garden, resulting in an invaluable dataset of wildflower and shrub phenology. These plants were primarily local native plants, but included some non-native species as well. Most likely her garden contained a mixture of species occurring naturally on her property and species planted deliberately.</p> <p>Logemann's records have been analyzed in compilation with observations made by Henry David Thoreau and contemporary researchers in a study of recent climate change in Concord. The dataset provided here includes flowering phenology records for 71 species over 30 years (discontinuous for most species) at a single location. We encourage the use of these data in further studies of plant phenology and hope they may provide encouragement for others to record and share their phenology data.</p>
Data from: Divergent selection on flowering phenology but not on floral morphology between two closely related orchids
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Flowering phenology of Nouelia insignis
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Data from: Comparison of the genetic determinism of two key phenological traits, flowering and maturity dates, in three Prunus species: peach, apricot and sweet cherry
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Observations of flowering phenology in Concord, Massachusetts, USA, 1963-1993
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Effects of land cover and water availability on brittlebush (Encelia farinosa) flowering phenology and its pollinator community.
Phenology is the seasonal timing of environment-mediated events such as growth and reproduction. Phenology is quantified by determining time of onset and end of events, duration, and number of flowers (Augspurger 1983, Rathcke and Lacey 1985). Studies of flowering and leafing phenology have dramatically increased during the last few decades due to growing concerns over global climate change and because phenology is a highly sensitive indicator that researchers can use to study the effects of climate change at multiple scales (Chuine et al. 2000, Sparks and Menzel 2002, Peuelas et al. 2004, Williams and Abberton 2004). Urban climatic conditions are considered similar to the changing global climate conditions; therefore, many researchers study urbanized areas as smaller scale experiments, or models, of global climate change (Ziska et al. 2003). Concerns over climate change are not the only reasons for studying urban ecosystems. It is important to create urban environments resilient to social, economic, and ecological collapse. The literature of flowering phenology in urban environments suggests that spring-blooming plants in urban environments located in temperate, Mediterranean, and boreal ecosystems in North America, Europe, and China tend to bloom earlier in the city than in the surrounding un-urbanized habitat (Roetzer et al. 2000, Fitter and Fitter 2002, White et al. 2002, Ziska et al. 2003, Zhang et al. 2004). Moreover, non-woody plants, early spring bloomers, and insect-pollinated plants in these environments tend to be more sensitive than woody plants, mid- or late-spring bloomers, and wind-pollinated plants (Fitter and Fitter 2002, Traidl-Hoffman et al. 2003). Finally, temperature (Heat Island Effect) has been assumed to be the cause of earlier flowering in the urban environments since the large-scale advancement of flowering has been strongly correlated with global warming. Study of flowering phenology in urban ecosystems is important because changes in phen
Fig. 3 in Flowering phenology of co-occurring Asteraceae: a matter of climate, ecological interactions, plant attributes or of evolutionary relationships among species?
Fig. 3 Flowering phenology of 43 Asteraceae species in Chaco Serrano forests of La SerranitaLos Aromos separated in three groups: (A) 'massive blooming', (B) 'sparse blooming', (C) 'intermediate' species (see Results Section). Numbers indicate the species detailed in Table 1; lines represent their flowering times; ♦ = flowering midpoint (week in center of recorded flowering period)
Flowering phenology and abundance, Gothic, CO, USA, 1973-present
<p>Prof. David Inouye has been collecting data on the abundance and timing of flowers that fall within permanent plots at the Rocky Mountain Biological Laboratory (RMBL), in Gothic, Colorado, USA, from 1973 to present. During the growing season, flowers of each species are counted approximately every other day, though in some years the start and/or end of flowering were missed, and data were not collected in 1978 and 1990. A core set of 23 2 x 2 m plots have been followed 1974-present (excluding 1978 and 1990), and additional plots have been added through the years (two in 1985, three in 1998, and two in 2004). Data are now collected in a total of 30 plots and up to 135 plant species have been recorded in the plots.</p>
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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.