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Resolved Question: help summarize article please please?
can you please help me summarize this article. If you cant help please dont leave a comment
First Spider Known To Science That Feeds Mainly On Plant Food
ScienceDaily (Oct. 13, 2009) — There are approximately 40,000 species of spiders in the world, all of which have been thought to be strict predators that feed on insects or other animals. Now, scientists have found that a small Central American jumping spider has a uniquely different diet: the species Bagheera kiplingi feeds predominantly on plant food.
The research, led by Christopher Meehan of Villanova University and Eric Olson of Brandeis University, has revealed the extraordinary ecology and behavior in Bagheera kiplingi, which lives throughout much of Central America and southern Mexico. There, the spider inhabits several species of acacia shrubs involved in a co-evolutionary mutualism with certain ants that has long been a staple of ecology textbooks: the ants fiercely guard the plants against most would-be herbivores, while the acacias provide both housing for the ants via swollen, hollow spines and food in the form of nectar (excreted from glands at the base of each leaf) and specialized leaf tips known as Beltian bodies. The Bagheera spiders are “cheaters” in the ant-acacia system, stealing and eating both nectar and—most remarkably—Beltian bodies without helping to defend the plant. The spiders get the job done through active avoidance of patrolling acacia-ants, relying on excellent eyesight, agility, and cognitive skills.
How do the spiders get around the ants that are supposed to be guarding the acacias and gobbling up the Beltian bodies themselves?
First, Meehan said, the spiders have what might be thought of as “sheer wit.” “Jumping spiders in general possess incredibly advanced sensory-cognitive skills and eight-legged agility, and Bagheera is no exception,” he said. “Individuals employ diverse, situation-specific strategies to evade ants, and the ants simply cannot catch them.”
The spiders also seem to build their webs in less attractive plant “real estate” and to actively defend their nests against ant invaders. Finally, Meehan added, the spiders might actually mimic the ants. Young spiders in particular look a lot like and seem to act like ants, one reason they have perhaps flown under scientists’ radar for so long despite intensive study of the ants and acacias. Meehan suspects that the spiders wear the ants’ chemical scent as well, a notion he is now investigating in more detail.
The research will appear in the October 13 issue of Current Biology.
Co-author Olson first discovered herbivory by the spiders in Costa Rica in 2001. In 2007, Meehan independently observed the same behaviors in a spider population in coastal Quintana Roo, south of Cancún, Mexico, during a field project for a Tropical Biology course taught by Villanova professor and study co-author Robert Curry. The two research groups subsequently combined efforts to jointly publish the discovery. The research also formed the basis of Meehan’s Masters degree from Villanova, completed in 2009.
In the field, the researchers documented behavioral patterns through direct observations and high-definition video recordings. Herbivory was especially clear in the Mexican population: Beltian bodies accounted for more than 90% of 140 food items identified. According to Meehan, “This is the first spider in the world known to deliberately ‘hunt’ plant parts; it is also the first found to go after plants as a primary food source.” Spiders in Costa Rica more frequently supplemented plant food with animal prey items, including ant larvae.
“What surprised us most about discovering this spider’s extraordinary ecology was to find it on the ant-acacias,” according to Curry. “This well-known mutualism has been studied by tropical ecologists for nearly 50 years, yet the spider’s role was not noticed until Olson’s discovery in 2001. We were lucky to find in Mexico an area where the spider is both exceptionally abundant and even more herbivorous than in Costa Rica.”
The researchers backed up their field observations with the results of laboratory analyses—conducted with the help of co-authors Matthew Reudink and Kurt Kyser of Queens University, Canada—of carbon and nitrogen isotopes for the various components of the ant-acacia system (Beltian bodies, ants, Bagheera spiders) and for other kinds of local spiders. The ratio of 15N to 14N, which provides an indication of a species’ trophic position, showed that Bagheera kiplingi was more similar to the herbivorous acacia-ants than to any of the other spiders sampled. Meanwhile, the ratio of 13C to 12C, which generally yields a match between an animal and its food, was almost identical for Bagheera spiders and the Beltian bodies. Collectively, the data show that Bagheera kiplingi obtains most of its diet directly or indirectly from the ant-acacia plants, especially in México.
Resolved Question: could u help me summarize this article please?
Could you please help me sumarrize this article it hard for me to understand. If you cant help me please dont write anything.
First Spider Known To Science That Feeds Mainly On Plant Food
ScienceDaily (Oct. 13, 2009) — There are approximately 40,000 species of spiders in the world, all of which have been thought to be strict predators that feed on insects or other animals. Now, scientists have found that a small Central American jumping spider has a uniquely different diet: the species Bagheera kiplingi feeds predominantly on plant food.
The research, led by Christopher Meehan of Villanova University and Eric Olson of Brandeis University, has revealed the extraordinary ecology and behavior in Bagheera kiplingi, which lives throughout much of Central America and southern Mexico. There, the spider inhabits several species of acacia shrubs involved in a co-evolutionary mutualism with certain ants that has long been a staple of ecology textbooks: the ants fiercely guard the plants against most would-be herbivores, while the acacias provide both housing for the ants via swollen, hollow spines and food in the form of nectar (excreted from glands at the base of each leaf) and specialized leaf tips known as Beltian bodies. The Bagheera spiders are “cheaters” in the ant-acacia system, stealing and eating both nectar and—most remarkably—Beltian bodies without helping to defend the plant. The spiders get the job done through active avoidance of patrolling acacia-ants, relying on excellent eyesight, agility, and cognitive skills.
How do the spiders get around the ants that are supposed to be guarding the acacias and gobbling up the Beltian bodies themselves?
First, Meehan said, the spiders have what might be thought of as “sheer wit.” “Jumping spiders in general possess incredibly advanced sensory-cognitive skills and eight-legged agility, and Bagheera is no exception,” he said. “Individuals employ diverse, situation-specific strategies to evade ants, and the ants simply cannot catch them.”
The spiders also seem to build their webs in less attractive plant “real estate” and to actively defend their nests against ant invaders. Finally, Meehan added, the spiders might actually mimic the ants. Young spiders in particular look a lot like and seem to act like ants, one reason they have perhaps flown under scientists’ radar for so long despite intensive study of the ants and acacias. Meehan suspects that the spiders wear the ants’ chemical scent as well, a notion he is now investigating in more detail.
The research will appear in the October 13 issue of Current Biology.
Co-author Olson first discovered herbivory by the spiders in Costa Rica in 2001. In 2007, Meehan independently observed the same behaviors in a spider population in coastal Quintana Roo, south of Cancún, Mexico, during a field project for a Tropical Biology course taught by Villanova professor and study co-author Robert Curry. The two research groups subsequently combined efforts to jointly publish the discovery. The research also formed the basis of Meehan’s Masters degree from Villanova, completed in 2009.
In the field, the researchers documented behavioral patterns through direct observations and high-definition video recordings. Herbivory was especially clear in the Mexican population: Beltian bodies accounted for more than 90% of 140 food items identified. According to Meehan, “This is the first spider in the world known to deliberately ‘hunt’ plant parts; it is also the first found to go after plants as a primary food source.” Spiders in Costa Rica more frequently supplemented plant food with animal prey items, including ant larvae.
“What surprised us most about discovering this spider’s extraordinary ecology was to find it on the ant-acacias,” according to Curry. “This well-known mutualism has been studied by tropical ecologists for nearly 50 years, yet the spider’s role was not noticed until Olson’s discovery in 2001. We were lucky to find in Mexico an area where the spider is both exceptionally abundant and even more herbivorous than in Costa Rica.”
The researchers backed up their field observations with the results of laboratory analyses—conducted with the help of co-authors Matthew Reudink and Kurt Kyser of Queens University, Canada—of carbon and nitrogen isotopes for the various components of the ant-acacia system (Beltian bodies, ants, Bagheera spiders) and for other kinds of local spiders. The ratio of 15N to 14N, which provides an indication of a species’ trophic position, showed that Bagheera kiplingi was more similar to the herbivorous acacia-ants than to any of the other spiders sampled. Meanwhile, the ratio of 13C to 12C, which generally yields a match between an animal and its food, was almost identical for Bagheera spiders and the Beltian bodies. Collectively, the data show that Bagheera kiplingi obtains most of its diet directly or indirectly from the ant-acacia plants, especially in México.
Resolved Question: help summarize article?
Could you please help me sumarrize this article it hard for me to understand. If you cant help me please dont write anything.
First Spider Known To Science That Feeds Mainly On Plant Food
ScienceDaily (Oct. 13, 2009) — There are approximately 40,000 species of spiders in the world, all of which have been thought to be strict predators that feed on insects or other animals. Now, scientists have found that a small Central American jumping spider has a uniquely different diet: the species Bagheera kiplingi feeds predominantly on plant food.
The research, led by Christopher Meehan of Villanova University and Eric Olson of Brandeis University, has revealed the extraordinary ecology and behavior in Bagheera kiplingi, which lives throughout much of Central America and southern Mexico. There, the spider inhabits several species of acacia shrubs involved in a co-evolutionary mutualism with certain ants that has long been a staple of ecology textbooks: the ants fiercely guard the plants against most would-be herbivores, while the acacias provide both housing for the ants via swollen, hollow spines and food in the form of nectar (excreted from glands at the base of each leaf) and specialized leaf tips known as Beltian bodies. The Bagheera spiders are “cheaters” in the ant-acacia system, stealing and eating both nectar and—most remarkably—Beltian bodies without helping to defend the plant. The spiders get the job done through active avoidance of patrolling acacia-ants, relying on excellent eyesight, agility, and cognitive skills.
How do the spiders get around the ants that are supposed to be guarding the acacias and gobbling up the Beltian bodies themselves?
First, Meehan said, the spiders have what might be thought of as “sheer wit.” “Jumping spiders in general possess incredibly advanced sensory-cognitive skills and eight-legged agility, and Bagheera is no exception,” he said. “Individuals employ diverse, situation-specific strategies to evade ants, and the ants simply cannot catch them.”
The spiders also seem to build their webs in less attractive plant “real estate” and to actively defend their nests against ant invaders. Finally, Meehan added, the spiders might actually mimic the ants. Young spiders in particular look a lot like and seem to act like ants, one reason they have perhaps flown under scientists’ radar for so long despite intensive study of the ants and acacias. Meehan suspects that the spiders wear the ants’ chemical scent as well, a notion he is now investigating in more detail.
The research will appear in the October 13 issue of Current Biology.
Co-author Olson first discovered herbivory by the spiders in Costa Rica in 2001. In 2007, Meehan independently observed the same behaviors in a spider population in coastal Quintana Roo, south of Cancún, Mexico, during a field project for a Tropical Biology course taught by Villanova professor and study co-author Robert Curry. The two research groups subsequently combined efforts to jointly publish the discovery. The research also formed the basis of Meehan’s Masters degree from Villanova, completed in 2009.
In the field, the researchers documented behavioral patterns through direct observations and high-definition video recordings. Herbivory was especially clear in the Mexican population: Beltian bodies accounted for more than 90% of 140 food items identified. According to Meehan, “This is the first spider in the world known to deliberately ‘hunt’ plant parts; it is also the first found to go after plants as a primary food source.” Spiders in Costa Rica more frequently supplemented plant food with animal prey items, including ant larvae.
“What surprised us most about discovering this spider’s extraordinary ecology was to find it on the ant-acacias,” according to Curry. “This well-known mutualism has been studied by tropical ecologists for nearly 50 years, yet the spider’s role was not noticed until Olson’s discovery in 2001. We were lucky to find in Mexico an area where the spider is both exceptionally abundant and even more herbivorous than in Costa Rica.”
The researchers backed up their field observations with the results of laboratory analyses—conducted with the help of co-authors Matthew Reudink and Kurt Kyser of Queens University, Canada—of carbon and nitrogen isotopes for the various components of the ant-acacia system (Beltian bodies, ants, Bagheera spiders) and for other kinds of local spiders. The ratio of 15N to 14N, which provides an indication of a species’ trophic position, showed that Bagheera kiplingi was more similar to the herbivorous acacia-ants than to any of the other spiders sampled. Meanwhile, the ratio of 13C to 12C, which generally yields a match between an animal and its food, was almost identical for Bagheera spiders and the Beltian bodies. Collectively, the data show that Bagheera kiplingi obtains most of its diet directly or indirectly from the ant-acacia plants, especially in México.
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