What percentage of introduced rangeland forage species is likely to be harmful out of the survivors?

What percentage of introduced rangeland forage species is likely to be harmful out of the survivors?

• A. 5%
• B. 10%
• C. 15%
• D. 20%

Answer: (C)

The assertion that 15% of introduced rangeland forage species are likely to be harmful out of the survivors is supported by various studies on invasive species and their impact on native ecosystems. When rangeland forage species are introduced, many do survive and adapt to the new environments. However, a percentage of these introduced species can become problematic, often outcompeting native plants, altering soil chemistry, or disrupting local ecosystems. Research has indicated that around 10% to 30% of introduced species can exhibit invasive characteristics, with 15% being a common figure in this context. Such species may provide immediate benefits for grazing or forage but can ultimately contribute to ecological imbalance, thus validating the choice of 15% as a reasoned estimate. This statistic emphasizes the need to carefully monitor and manage introduced forage species to mitigate potential negative impacts on rangelands and native flora.

The assertion that 15% of introduced rangeland forage species are likely to be harmful out of the survivors is supported by various studies on invasive species and their impact on native ecosystems. When rangeland forage species are introduced, many do survive and adapt to the new environments. However, a percentage of these introduced species can become problematic, often outcompeting native plants, altering soil chemistry, or disrupting local ecosystems.

Research has indicated that around 10% to 30% of introduced species can exhibit invasive characteristics, with 15% being a common figure in this context. Such species may provide immediate benefits for grazing or forage but can ultimately contribute to ecological imbalance, thus validating the choice of 15% as a reasoned estimate. This statistic emphasizes the need to carefully monitor and manage introduced forage species to mitigate potential negative impacts on rangelands and native flora.