Spore mass and morphometry of some fern species

Gómez‐Noguez, Felipe; Pérez-García, Blanca; Mehltreter, Klaus; Orozco‐Segovia, Alma; Rosas‐Pérez, Irma

doi:10.1016/j.flora.2016.05.003

Cited by 22 publications

(12 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As in many plants species, individual ferns with larger body sizes (i.e., higher trunks) would tend to have a higher range of airborne spore dispersal, translating into increased levels of gene flow and to an overall increase in N e (Petit and Hampe ; Gómez‐Noguez et al. ). Intuitively, increasing population size would decrease the effect of genetic drift and slowdown the rate at which nearly neutral mutations reach fixation (Ohta ; Lanfear et al.…”

Section: Discussionmentioning

confidence: 99%

Rates of molecular evolution in tree ferns are associated with body size, environmental temperature, and biological productivity

2018

View full text Add to dashboard Cite

Variation in rates of molecular evolution (heterotachy) is a common phenomenon among plants. Although multiple theoretical models have been proposed, fundamental questions remain regarding the combined effects of ecological and morphological traits on rate heterogeneity. Here, we used tree ferns to explore the correlation between rates of molecular evolution in chloroplast DNA sequences and several morphological and environmental factors within a Bayesian framework. We revealed direct and indirect effects of body size, biological productivity, and temperature on substitution rates, where smaller tree ferns living in warmer and less productive environments tend to have faster rates of molecular evolution. In addition, we found that variation in the ratio of nonsynonymous to synonymous substitution rates (dN/dS) in the chloroplast rbcL gene was significantly correlated with ecological and morphological variables. Heterotachy in tree ferns may be influenced by effective population size associated with variation in body size and productivity. Macroevolutionary hypotheses should go beyond explaining heterotachy in terms of mutation rates and instead, should integrate population-level factors to better understand the processes affecting the tempo of evolution at the molecular level.

show abstract

Section: Discussionmentioning

confidence: 99%

Rates of molecular evolution in tree ferns are associated with body size, environmental temperature, and biological productivity

2018

View full text Add to dashboard Cite

show abstract

“…We used 185 plots for the analyses from the 192 sampled plots, excluding two plots with very high soil organic matter content and five plots because they had no understorey species. For the analysis of seed mass, Monilophyta species (12 fern and two Equisetum species) were excluded because their very low ‘diaspore’ mass caused a bias in the results (0.000034 mg for ferns; Gómez‐Noguez et al )). Table S5 shows results when including these species.…”

Section: Methodsmentioning

confidence: 99%

Plant functional trait response to environmental drivers across European temperate forest understorey communities

et al. 2020

View full text Add to dashboard Cite

Functional traits respond to environmental drivers, hence evaluating trait-environment relationships across spatial environmental gradients can help to understand how multiple drivers influence plant communities. Global-change drivers such as changes in atmospheric nitrogen deposition occur worldwide, but affect community trait distributions at the local scale, where resources (e.g. light availability) and conditions (e.g. soil pH) also influence plant communities.• We investigate how multiple environmental drivers affect community trait responses related to resource acquisition (plant height, specific leaf area (SLA), woodiness, and mycorrhizal status) and regeneration (seed mass, lateral spread) of European temperate deciduous forest understoreys. We sampled understorey communities and derived trait responses across spatial gradients of global-change drivers (temperature, precipitation, nitrogen deposition, and past land use), while integrating in-situ plot measurements on resources and conditions (soil type, Olsen phosphorus (P), Ellenberg soil moisture, light, litter mass, and litter quality).• Among the global-change drivers, mean annual temperature strongly influenced traits related to resource acquisition. Higher temperatures were associated with taller understoreys producing leaves with lower SLA, and a higher proportional cover of woody and obligate mycorrhizal (OM) species. Communities in plots with higher Ellenberg soil moisture content had smaller seeds and lower proportional cover of woody and OM species. Finally, plots with thicker litter layers hosted taller understoreys with larger seeds and a higher proportional cover of OM species.• Our findings suggest potential community shifts in temperate forest understoreys with global warming, and highlight the importance of local resources and conditions as well as global-change drivers for community trait variation. Hansen et al., 2001;Walther, 2010;De Frenne et al., 2011;Bernhardt-R€ omermann et al., 2015;Bjorkman et al., 2018). Important global change drivers affecting temperate plant communities include increased temperatures, changes in Plant Biology 22 (2020) 410-424

show abstract

“…We measured traits for 19 species from herbarium specimens (Appendix S1). Bryophyte spore sizes were infrequently cited in the literature, and when not, we used 0.082 mm to approximate an average spore size based on Gómez-Noguez et al (2016) .…”

Section: R E S E a R C H A R T I C L Ementioning

confidence: 99%

Inferring long‐distance dispersal modes in American amphitropically disjunct species through adaptive dispersal structures

Schenk

Saunders

2017

American J of Botany

View full text Add to dashboard Cite

Botanists have long-held the assumption that bird migrations are responsible for amphitropical disjunctions. Our results support this hypothesis, with the majority of these events occurring by external attachment of small fruits. However, our results also indicate that anemochory might play a greater role in producing amphitropical distributions than previously thought and at a greater rate than endozoochory or hydrochory.

show abstract

Spore mass and morphometry of some fern species

Cited by 22 publications

References 36 publications

Rates of molecular evolution in tree ferns are associated with body size, environmental temperature, and biological productivity

Rates of molecular evolution in tree ferns are associated with body size, environmental temperature, and biological productivity

Plant functional trait response to environmental drivers across European temperate forest understorey communities

Inferring long‐distance dispersal modes in American amphitropically disjunct species through adaptive dispersal structures

Contact Info

Product

Resources

About