How well do the spring indices predict phenological activity across plant species?
| العنوان: | How well do the spring indices predict phenological activity across plant species? |
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| المؤلفون: | Theresa M. Crimmins, Erin E. Posthumus, Mark D. Schwartz, Alyssa Rosemartin, Katharine L. Gerst |
| المصدر: | International Journal of Biometeorology. 64:889-901 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Atmospheric Science, 010504 meteorology & atmospheric sciences, Health, Toxicology and Mutagenesis, 01 natural sciences, Trees, Latitude, 03 medical and health sciences, 0302 clinical medicine, Spring (hydrology), Honeysuckle, 0105 earth and related environmental sciences, 030203 arthritis & rheumatology, geography, geography.geographical_feature_category, Ecology, biology, Phenology, lilac, Reproduction, Temperature, Syringa, biology.organism_classification, Plant Leaves, Deciduous, Spatial ecology, Seasons, Physical geography, Bloom |
| الوصف: | The spring indices, models that represent the onset of spring season biological activity, were developed using a long-term observational record from the mid-to-late twentieth century of three species of lilacs and honeysuckles contributed by volunteer observers across the nation. The USA National Phenology Network (USA-NPN) produces and freely delivers maps of spring index onset dates at fine spatial scale for the USA. These maps are used widely in natural resource planning and management applications. The extent to which the models represent activity in a broad suite of plant species is not well documented. In this study, we used a rich record of observational plant phenology data (37,819 onset records) collected in recent years (1981-2017) to evaluate how well gridded maps of the spring index models predict leaf and flowering onset dates in (a) 19 species of ecologically important, broadly distributed deciduous trees and shrubs, and (b) the lilac and honeysuckle species used to construct the models. The extent to which the spring indices predicted vegetative and reproductive phenology varied by species and with latitude, with stronger relationships revealed for shrubs than trees and with the Bloom Index compared to the Leaf Index, and reduced concordance between the indices at higher latitudes. These results allow us to use the indices as indicators of when to expect activity across widely distributed species and can serve as a yardstick to assess how future changes in the timing of spring will impact a broad array of trees and shrubs across the USA. |
| تدمد: | 1432-1254 0020-7128 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d27fde011caae4133a59b1d87f1f98aTest https://doi.org/10.1007/s00484-020-01879-zTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....9d27fde011caae4133a59b1d87f1f98a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14321254 00207128 |
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