Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: baileymeredith on Jul 15, 2019 After reading the paragraph below, answer the questions that follow.
Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in the early 1900s. It can be found on roadsides and in forests, and it has many impacts on native plants and animals. Biologists Jayna DeVore and John Maerz studied the effect of Japanese stiltgrass on American toads in their natural habitat. They enclosed American toads in cages with lycosid spiders and/or Japanese stiltgrass. The four treatments were (A) lycosid spiders and Japanese stiltgrass, (B) lycosid spiders without Japanese stiltgrass, (C) lycosid spiders and Japanese stiltgrass, and (D) no lycosid spiders and no Japanese stiltgrass. They compared the survival of American toads across the treatments (left graph). They also measured the density of lycosid spiders in different areas where Japanese stiltgrass was absent vs. present (right graph). Source: DeVore, J. L., & Maerz, J. C. (2014). Grass invasion increases top‐down pressure on an amphibian via structurally mediated effects on an intraguild predator. Ecology, 95(7), 1724-1730. What do their results demonstrate about the interactions between the species that they studied? ▸ Lycosid spiders are predators of American toads. ▸ American toads are predators of lycosid spiders. ▸ Japanese stiltgrass is a pathogen of lycosid spiders. ▸ American toads are herbivores of Japanese stiltgrass. Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: emnevius on Jul 15, 2019 Content hidden
Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: seeb1999 on Jul 15, 2019 After reading the paragraph below, answer the questions that follow.
Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in the early 1900s. It can be found on roadsides and in forests, and it has many impacts on native plants and animals. Biologists Jayna DeVore and John Maerz studied the effect of Japanese stiltgrass on American toads in their natural habitat. They enclosed American toads in cages with lycosid spiders and/or Japanese stiltgrass. The four treatments were (A) lycosid spiders and Japanese stiltgrass, (B) lycosid spiders without Japanese stiltgrass, (C) lycosid spiders and Japanese stiltgrass, and (D) no lycosid spiders and no Japanese stiltgrass. They compared the survival of American toads across the treatments (left graph). They also measured the density of lycosid spiders in different areas where Japanese stiltgrass was absent vs. present (right graph). Source: DeVore, J. L., & Maerz, J. C. (2014). Grass invasion increases top‐down pressure on an amphibian via structurally mediated effects on an intraguild predator. Ecology, 95(7), 1724-1730. American toads consume insects. An American toad that is consuming herbivorous insects is considered a ▸ tertiary consumer. ▸ primary consumer. ▸ secondary consumer. ▸ primary producer. Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: gtur on Jul 15, 2019 secondary consumer.
Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: seeb1999 on Jul 15, 2019 Exactly what I needed for my project, TYSM
Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: studymite on Jul 15, 2019 After reading the paragraph below, answer the questions that follow.
Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in the early 1900s. It can be found on roadsides and in forests, and it has many impacts on native plants and animals. Biologists Jayna DeVore and John Maerz studied the effect of Japanese stiltgrass on American toads in their natural habitat. They enclosed American toads in cages with lycosid spiders and/or Japanese stiltgrass. The four treatments were (A) lycosid spiders and Japanese stiltgrass, (B) lycosid spiders without Japanese stiltgrass, (C) lycosid spiders and Japanese stiltgrass, and (D) no lycosid spiders and no Japanese stiltgrass. They compared the survival of American toads across the treatments (left graph). They also measured the density of lycosid spiders in different areas where Japanese stiltgrass was absent vs. present (right graph). Source: DeVore, J. L., & Maerz, J. C. (2014). Grass invasion increases top‐down pressure on an amphibian via structurally mediated effects on an intraguild predator. Ecology, 95(7), 1724-1730. What hypothesis is best supported by these results? ▸ Japanese stiltgrass increases the number of American toads by converting more solar energy to chemical energy than native plants do. ▸ Japanese stiltgrass decreases the number of American toads by reducing the food supply (insects) of the toads. ▸ Japanese stiltgrass increases the number of American toads by decreasing species diversity of native plants. ▸ Japanese stiltgrass decreases the number of American toads by increasing the amount of habitat available to a predator (lycosid spiders) of American toads. Title: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States in ... Post by: rand22 on Jul 15, 2019 Japanese stiltgrass decreases the number of American toads by increasing the amount of habitat available to a predator (lycosid spiders) of American toads.
Title: Re: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States ... Post by: Simon Zhang on Nov 19, 2019 Thanks so much.
Title: Re: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States . Post by: Gabby Kaple on Dec 7, 2019 .
Title: Re: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States ... Post by: zhonghao wang on Apr 4, 2020 Thank you very much
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Title: Re: Japanese stiltgrass is an invasive plant that was accidentally introduced to the United States ... Post by: hashbrownkitty on Nov 9, 2020 awesome!
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