A population dynamics approach to understand the invasiveness of the seaweed Rugulopteryx okamurae (Ochrophyta, Dictyotales)

NeoBiota, Journal Year: 2025, Volume and Issue: 97, P. 1 - 17

Published: Jan. 13, 2025

The success of invasive species can be measured by invasiveness, which depicts intrinsic characteristics that enable them to thrive in new environments. In seaweeds, for example, the persistence multiple overlapping cohorts throughout year plays a key role increasing plant cover and exerting unrelenting pressure on invaded areas. marine brown macroalgae Rugulopteryx okamurae has recently established abundant populations Mediterranean Sea Atlantic Ocean, negatively affecting both biodiversity socioeconomic factors unprecedently aggressive behaviour. objective study is understand invasiveness R. through its popu lation dynamics. For this, year-round was conducted protected habitat Posidonia oceanica southern Spain, revealing uses alternating mechanisms population maintenance. It achieves high density young individuals late summer autumn, peaking at 3285 per square metre. spring early summer, shifts towards fewer – but larger individuals, with densities dropping 888 metre biomass reaching peak 170 g dry weight (DW) Six were identified Gaussian curves. They persisted year, they not related environmental factors, indicates adaptive physiological sustain dense monospecific populations. Additionally, association between different morphotypes suggests phenotypic plasticity enables introduced These findings provide valuable insights into biological traits underpinning P. meadows, temporal windows driven mechanisms. This knowledge crucial developing effective conservation management strategies aimed mitigating impact this species.

Language: Английский

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Alien flora of Pakistan: taxonomic composition, invasion status, geographic origin, introduction pathways, and ecological patterns

Biological Invasions, Journal Year: 2024, Volume and Issue: 26(8), P. 2435 - 2451

Published: April 30, 2024

Language: Английский

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Dissecting Genotype-Environment interactions with functional implications for parental selection in Cannabis Breeding

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract As climate variability continues to impact agricultural systems, identifying genetic factors that contribute environmental adaptation will be essential for optimizing breeding strategies the development of resilient varieties. Through human cultivation and naturalization, Cannabis sativa has dispersed globally, adapting a range conditions across various climates latitudes. We combined raw data from multiple public sources conduct an Environmental Genomic Selection (EGS) analysis on 149 samples, assess how different populations relate their conditions. Exploring Estimated Adaptive Values (GEAVs) bioclimatic variables can facilitate selection parental material adapted specific condition. further explore potential mechanisms local by characterizing individual marker effects which underlie these GEAV scores. To interpretation, we used previously described groupings (Basal, Hemp-type, Drug-type feral, Drug-type). Distinct patterns emerged population groups with drug-type (Type I) group showing consistently narrow ranges, whereas feral showed broader distribution, often having high GEAVs precipitation variables. A key variable difference was seen in monthly average values, revealing seasonal response samples. marker-effect differences between indicated this samples are sourced geographic regions have monsoons, they may traits conferring flood tolerance (water logging) could introgressed into other backgrounds. The basal also exhibited broad ranges several traits, indicating valuable resource introgression enhance resilience. These findings underscore importance incorporating diverse germplasm programs improve resilience changing EGS provides fast method enable climate-conscious while gaining mechanistic information. Ultimately, hope such strategy support climate-resilient varieties tailored both current future challenges.

Language: Английский

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Geo-climatic factors co-drive the phenotypic diversity of wild hemp (Cannabis sativa L.) in the Potohar Plateau and Lesser Himalayas

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Oct. 30, 2024

Language: Английский

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