Flowering, floral visitors and climatic drivers of reproductive phenology of two endangered magnolias from neotropical Andean forests
Artículo de revista
2021
Wiley
Magnolia
Germinación del polen
Pollen germination
Germination du pollen
Germinação do pólen
Plántulas
Seedlings
Plantule
Plântula
Fenología
Phénologie
Phenology
Polinización
Pollinisation
Pollination
Polinização
Polinizadores
Pollinisateur
Pollinators
Cambio climático
Changement climatique
Climate Change
Mudança de clima
Especies en peligro de extinción
Espèce en danger
Endangered species
Espécie em extinção
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Germinación del polen
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Pollen germination
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Germination du pollen
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Germinação do pólen
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Plántulas
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Seedlings
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Plantule
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Plântula
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Fenología
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Phénologie
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Phenology
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Polinización
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Pollinisation
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Pollination
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Polinização
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Polinizadores
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Pollinisateur
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Pollinators
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Cambio climático
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Changement climatique
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Climate Change
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Mudança de clima
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Especies en peligro de extinción
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Espèce en danger
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Endangered species
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Espécie em extinção
![Buscar en Metarevistas Buscar en Metarevistas](/themes/Mirage2/images/search.png)
Depressed fruit and seed production and scant seedling recruitment appear to be imperiling natural populations of Colombian Magnolia species. From February 2015 to April 2017, we recorded data on flowering, pollen limitation, floral visitors, and the reproductive phenology of Magnolia jardinensis and Magnolia yarumalensis, two threatened and endemic species from Colombian Andean cloud forests. Both species are protogynous with anthesis lasting two consecutive days—with M. jardinensis flowers opening in the evening, while M. yarumalensis flowers open early in the morning. Fruit abortion in both bagged flowers and open pollination experiments suggests that both species exhibit considerable reproductive limitations. There was a lower percentage of pollen germination in M. jardinensis (3–26%) than in M. yarumalensis (60–86%), suggesting more limitations in the former species. Magnolia yarumalensis was a prolific fruit producer compared to M. jardinensis, which produced only one ripe fruit during the study, in spite of its high production of floral buds. Despite sharing the same locality, these species did not share pollinators, thus further increasing their vulnerability to extinction. Floral buds in both species were negatively correlated with minimum temperature and precipitation, while ripe fruits in both species were positively correlated with increases in precipitation and temperature. Our results provide information about how climate change could affect the various phenophases of these species. Knowledge about reproductive phenology and life history traits such as flowering and pollinators is crucial for specific and efficient conservation efforts to protect these endangered species under the current climate change scenarios.
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Datos del documento
Título: Flowering, floral visitors and climatic drivers of reproductive phenology of two endangered magnolias from neotropical Andean forests.jpg
Tamaño: 258.4Kb
Título: Flowering, floral visitors and climatic drivers of reproductive phenology of two endangered magnolias from neotropical Andean forests.jpg
Tamaño: 258.4Kb