International Journal of Molecular Ecology and Conservation, 2025, Vol.15, No.4, 175-186 http://ecoevopublisher.com/index.php/ijmec 1 76 2 Theoretical Background of Seed Propagation 2.1 The evolutionary significance of communication Seed propagation is a key evolutionary strategy that enhances plant fitness by reducing competition among closely related individuals, avoiding density-dependent death near the mother plant, and promoting colonization in new or disturbed habitats. Propagation enables plants to track changes in environmental conditions, maintain gene flow, and buffer populations from local extinction, thus playing a core role in the persistence and adaptability of plant species (Beckman et al., 2019; Chen et al., 2020). The trade-off between transmission and dormancy is also regarded as an important risk diversification strategy. Different species often choose spatial transmission or temporal transmission (dormancy) based on environmental variability and life history characteristics (Chen et al., 2020). 2.2 Classical communication model In the study of seed propagation, theoretical models have long been important tools for understanding this process. Researchers rely on both empirical analysis and deduction, and the "propagation core" is the most common approach. It describes the distance of seed diffusion from the mother plant through probability distribution (Bullock et al., 2017; Kim et al., 2022). This distribution has no uniform form. It may be exponential, power-law or logarithmic hyperbolic. Different forms often reflect the differences in propagation mechanisms and environmental backgrounds (Bullock et al., 2017; Kim et al., 2022). Unlike this, the mechanism model pays more attention to the propagation process itself. For example, in the study of wind propagation, parameters such as seed morphology, release height, wind speed and turbulence often need to be considered to predict the distance and pattern of propagation (Nathan et al., 2011; Kim et al., 2022). 2.3 Main ecological consequences People tend to view seed dispersal as a matter of individual continuity, but in reality, it has already left traces on a larger scale - genetic diversity, population expansion, and even the form of community structure are all closely related to it. The flow of genes between different populations essentially relies on this transmission process. As a result, the risk of inbreeding is reduced, variations are preserved, and species have more opportunities to adapt to long-term environmental changes (Beckman et al., 2019). However, transmission is not only linked to genetic communication, it also determines the speed and mode of population movement in space. Sometimes it is opening up new territories, sometimes it is forced migration, and success or failure often depends on the efficiency of dissemination (Nathan et al., 2008; Beckman et al., 2019). Looking at it at the scale of a community, things are even more complex. If the transmission mechanism is properly utilized, species can coexist better and the renewal process can be driven, thereby affecting the composition and diversity of the community (Schupp et al., 2010). But this influence is not always the same, it will be constrained by various specific conditions. The number and effectiveness of communication events, the ecological habits of the communicators themselves, and even the differences in the surrounding landscape patterns can all lead to significant differences in the results (Schupp et al., 2010; Nevo et al., 2023). 3 The Mechanism of Seed Propagation 3.1 Non-biological transmission Abiotic seed dispersal refers to the transportation of seeds by non-living environmental forces, thereby shaping the distribution and community structure of plants in terrestrial ecosystems. The main abiotic transmission methods include wind transmission (anemochory), water transmission (hydrochory), and gravity transmission (barochory), each accompanied by unique seed adaptability and ecological background. Wind propagation is a widespread mechanism, especially common in open areas and plants with adaptive seeds. Seeds propagated by wind usually have special morphological characteristics, such as wings, crown hairs or down. These structures can increase the surface area and reduce the terminal velocity, allowing the seeds to stay in the air for a longer time and spread farther (Nathan et al., 2002; Soons et al., 2017; Snell et al., 2019). For instance, seeds with samaras and feather-like crown hairs are common adaptive characteristics that can be lifted and horizontally moved by turbulent updraft (Nathan et al., 2002; Soons et al., 2017; Snell et al., 2019). Mechanism models
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