Poisonous plants, palatable plants

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The discussion centers on the impact of plant toxicity on seed dispersal methods. Nonpoisonous plants have access to a wider range of dispersal vectors, particularly biotic ones, such as animals that consume their fruits and subsequently disperse the seeds. In contrast, poisonous plants may deter certain animals from consuming their seeds, limiting their dispersal options. However, toxicity can also provide advantages; for example, a plant may evolve to be poisonous to specific herbivores while remaining palatable to others, thus ensuring that some animals still aid in seed dispersal. The dispersal mechanisms, including gravity, wind, ballistic, water, and animal vectors, significantly influence the demographic and genetic structure of plant populations, as well as their migration patterns and interactions with other species. Understanding these dynamics is crucial for comprehending plant population ecology and evolution.
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How does whether plants are poisonous or nonpoisonous affect their dispersal of seeds?
 
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Well, think of some of the ways in which plants go about dispersing their seeds. Which avenues are available to nonpoisonous plants that are not available to poisonous plants? Similarly, how might being poisonous help some of these methods of dispersal?
 
Ygggdrasil said:
Well, think of some of the ways in which plants go about dispersing their seeds. Which avenues are available to nonpoisonous plants that are not available to poisonous plants? Similarly, how might being poisonous help some of these methods of dispersal?

You basically restated my original question.
 
Bysics said:
Plants have limited mobility and consequently rely upon a variety of dispersal vectors to transport their propagules, including both abiotic and biotic vectors. Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. The patterns of seed dispersal are determined in large part by the dispersal mechanism and this has important implications for the demographic and genetic structure of plant populations, as well as migration patterns and species interactions. There are five main modes of seed dispersal: gravity, wind, ballistic, water and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus.

Thanks for a general description of dispersal. How would poison affect its modes?
 
For instance, how would one berry evolve to be poisonous to one browsing species, and edible to another?
 
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