if the newcomers are only changing the ecosystem but
ot causing significant harm,\ then - according to davis - our perspective is certainly much less costly than any other sort of management program,\ davis writes in his recently published book, invasion biology.
\its amazing how extensive the indoctrination has been: non - native species are bad - weve got to get rid of them,\ says davis, chairman of the biology department at macalester college in st. paul, minnesota.
\boy, if you want nature to stop, youre going to be miserable.\
davis and his like - minded colleagues contend that the rigid attitudes, and militaristic metaphors, that characterize the debate about exotic species make for poor science and policy - making.
from greg breining, \courting controversy with a new view on exotic species.\ ©2008 - 2015 by yale university.
passage 2
off the top of his head, dan simberloff, professor of ecology and evolution at the university of tennessee, can run through a list of devastating invasive species from brazilian pepper in florida to gray squirrels in the u.k. to zebra mussels clogging water pipes in the great lakes.
he says that daviss argument that not all exotics are invasive is impractical. \a number of introduced species have been innocuous for decades and they can suddenly explode and become problematic,\ he says. he points to the example of ornamental figs in florida, which arrived in the early 1900s. confined to backyards until their pollinating wasp showed up 25 years ago, figs have now invaded everglades national park.
other ecologists have taken a more nuanced view of the invasive question. he extent of their harm may have been overstated,\ says princetons david wilcove, who first tallied up the threat of invasive species and still stands by it. \maybe the issue is: are we being strategic in the way we combat invasive species?\
and i think thats a fair question,\ from brendan borrell, \alien invasion? an ecologist doubts the impact of invasive species.\ ©2009 by scientific american, a division of nature america, inc.
question
in passage 2, the third paragraph primarily serves to
- offer a viewpoint on nonnative species that sits somewhere between simberloffs and daviss
- provide strong support for daviss stance on the issue of nonnative species
- describe the definitive solution for eradicating nonnative species
- argue in favor of a proposal for dealing with an invasive species of figs in florida

Question

if the newcomers are only changing the ecosystem but
ot causing significant harm,\ then - according to davis - our perspective is certainly much less costly than any other sort of management program,\ davis writes in his recently published book, invasion biology.
\its amazing how extensive the indoctrination has been: non - native species are bad - weve got to get rid of them,\ says davis, chairman of the biology department at macalester college in st. paul, minnesota.
\boy, if you want nature to stop, youre going to be miserable.\
davis and his like - minded colleagues contend that the rigid attitudes, and militaristic metaphors, that characterize the debate about exotic species make for poor science and policy - making.
from greg breining, \courting controversy with a new view on exotic species.\ ©2008 - 2015 by yale university.
passage 2
off the top of his head, dan simberloff, professor of ecology and evolution at the university of tennessee, can run through a list of devastating invasive species from brazilian pepper in florida to gray squirrels in the u.k. to zebra mussels clogging water pipes in the great lakes.
he says that daviss argument that not all exotics are invasive is impractical. \a number of introduced species have been innocuous for decades and they can suddenly explode and become problematic,\ he says. he points to the example of ornamental figs in florida, which arrived in the early 1900s. confined to backyards until their pollinating wasp showed up 25 years ago, figs have now invaded everglades national park.
other ecologists have taken a more nuanced view of the invasive question. 	he extent of their harm may have been overstated,\ says princetons david wilcove, who first tallied up the threat of invasive species and still stands by it. \maybe the issue is: are we being strategic in the way we combat invasive species?\
and i think thats a fair question,\ from brendan borrell, \alien invasion? an ecologist doubts the impact of invasive species.\ ©2009 by scientific american, a division of nature america, inc.
question
in passage 2, the third paragraph primarily serves to
 - offer a viewpoint on nonnative species that sits somewhere between simberloffs and daviss
 - provide strong support for daviss stance on the issue of nonnative species
 - describe the definitive solution for eradicating nonnative species
 - argue in favor of a proposal for dealing with an invasive species of figs in florida

Accepted Answer

# Brief Explanations:
In Passage 2, the third - paragraph mentions other ecologists' more nuanced view on invasive species. While Simberloff sees most non - native species as devastating and Davis has a more lenient view, these other ecologists' view is in - between. They note that the harm of invasive species may have been overstated, which is a middle ground perspective.
# Answer:
offer a viewpoint on nonnative species that sits somewhere between Simberloff's and Davis's

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