meso-middle; intermediate Designating an achiral member of a group of diastereoisomers that has at least one chiral member meso-tartaric acid; Derived terms
Many animals within the park rely on specific types of plants as their sole food source. Monarch butterflies, for example, only lay their eggs on milkweed, and only eat milkweed while in their caterpillar phase. Milkweed requires a moderately acidic soil to grow, surviving in soil pH levels from 4.8 to 6.8.As with most other plants, it cannot tolerate pH levels below 4. Overly-acidic soil prevents roots from being able to absorb water and nutrients crucial for survival.ilkweed requires a moderately acidic soil to grow, surviving in soil pH levels from 4.8 to 6.8. As with most other plants, it cannot tolerate pH levels below 4. Overly-acidic soil prevents roots from being able to absorb water and nutrients crucial for survival.
For some milkweed species, consumption of less than 1% of an animalâs body weight in fresh material can be a lethal dose (Kingsbury 1964). Milkweed poisoning has also been documented in chickens and turkeys, but avian species are less likely to eat milkweeds than grazing mammals (Panter et al.ilkweeds are the required host plants for monarch butterfly caterpillars (female monarchs lay their eggs on milkweeds) and their flowers provide nectar for bees, butterflies, and other beneficial insects. By planting milkweed, you can provide habitat for monarchs and also attract and support pollinators.