New opportunities for grassland species in warming temperate winters DOI Creative Commons
Frederick Curtis Lubbe, Andrea Kučerová, Martin Bitomský

et al.

Functional Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Abstract Temperate winters are getting warmer, the length of growing season is increasing and mid‐winter fluctuations warm freezing temperatures more frequent. Although typically winter dormant, some herbaceous perennials can maintain or grow green leaves during species may do so as become warmer. For wintergreen to provide an advantage, they must be able photosynthesize spells but also withstand between two conditions. To understand leaf traits herbs, we studied three widely distributed perennial species: Bellis perennis , Plantago lanceolata Trifolium repens . contrast leaves, measured common economic (LDMC, SLA N content). assess tolerance, ice nucleation temperature LT50 after frost exposure in leaves. confirm photosynthetic ability, efficiency ( Fv / Fm value) late spring. Additionally, surveyed dead coverage for a lawn community from early summer (four surveys total). We used our observations determine phenological categories compared them historical wintergreenness. All had denser with lower nitrogen content than relatively high tolerance (average −8°C −15°C LT50). Both were capable photosynthesis, was greater In survey, majority plant winter, many without Many herbs previously been labelled ‘summer green’. With these initial investigations into phenology that have different typical both photosynthesis tolerance. Wintergreen broad range strategies differ 20 years ago. temperate regions, becoming new thus should included studies. Read free Plain Language Summary this article on Journal blog.

Language: Английский

Capital and income breeders among herbs: how relative biomass allocation into a storage organ relates to clonal traits, phenology and environmental gradients DOI
Timothy Harris, Andrea Kučerová, Martin Bitomský

et al.

New Phytologist, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Perennial herbs of seasonal climates invest carbon into belowground storage organs (e.g. rhizomes) to support growth when photosynthetic acquisition cannot cover demands. An alternative explanation interprets allocation as surplus that is undeployable for plants are limited by nutrients/water. We analysed relative investments rhizomes see which these explanations they align, and asked whether scale with biomass aboveground in individual species clonal traits, phenology or environmental conditions explain investment among populations species. measured rhizomes, stems leaves 20 temperate herbaceous perennial species, each at two localities, establishing allometric relationships pairs organs. correlated rhizome gradients phenology, across For organs, typically scales isometrically. Interspecific differences largely explained phenology. Neither interspecific nor intraspecific were traits environment. Storage do not comprise deposition surplus, but receive greater capital breeders (early-flowering), than income (late-flowering) relying on during growing season. Capital deserve further examination benefits/costs.

Language: Английский

Citations

1
New opportunities for grassland species in warming temperate winters DOI Creative Commons
Frederick Curtis Lubbe, Andrea Kučerová, Martin Bitomský

et al.

Functional Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Abstract Temperate winters are getting warmer, the length of growing season is increasing and mid‐winter fluctuations warm freezing temperatures more frequent. Although typically winter dormant, some herbaceous perennials can maintain or grow green leaves during species may do so as become warmer. For wintergreen to provide an advantage, they must be able photosynthesize spells but also withstand between two conditions. To understand leaf traits herbs, we studied three widely distributed perennial species: Bellis perennis , Plantago lanceolata Trifolium repens . contrast leaves, measured common economic (LDMC, SLA N content). assess tolerance, ice nucleation temperature LT50 after frost exposure in leaves. confirm photosynthetic ability, efficiency ( Fv / Fm value) late spring. Additionally, surveyed dead coverage for a lawn community from early summer (four surveys total). We used our observations determine phenological categories compared them historical wintergreenness. All had denser with lower nitrogen content than relatively high tolerance (average −8°C −15°C LT50). Both were capable photosynthesis, was greater In survey, majority plant winter, many without Many herbs previously been labelled ‘summer green’. With these initial investigations into phenology that have different typical both photosynthesis tolerance. Wintergreen broad range strategies differ 20 years ago. temperate regions, becoming new thus should included studies. Read free Plain Language Summary this article on Journal blog.

Language: Английский

Citations

0