Germination of Netleaf Hackberry Seeds on the North Sides of Boulders: A Shift away from Patterns of Mature Hackberry Distribution?
| Autor: | Michael T. Stevens, Daniel L. Holland |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
geography Celtis reticulata geography.geographical_feature_category 010504 meteorology & atmospheric sciences Ecology biology Growing season biology.organism_classification 010603 evolutionary biology 01 natural sciences Horticulture Germination Seedling Botany Foothills Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Western North American Naturalist. 77:272-274 |
| ISSN: | 1944-8341 1527-0904 |
| DOI: | 10.3398/064.077.0215 |
| Popis: | Because limited numbers of netleaf hackberry (Celtis reticulata) seedlings are observed in nature, we evaluated patterns of germination of hackberry seeds (n = 2545) that we planted near boulders in the Wasatch Mountain foothills. Seeds were followed over 2 growing seasons. Germination rates were very low overall, but significantly more seeds germinated on the north sides of boulders compared to other boulder aspects. That we found higher rates of germination on the north sides of boulders, instead of on the south sides of boulders where mature hackberry shrubs tend to grow, could reflect year-to-year variation in seed germination and seedling survival but is also consistent with a shift away from warmer and drier sites by hackberry in response to climate change. |
| Databáze: | OpenAIRE |
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