2. All but one species of large birds native to New Zealand's tropical forests are now extinct. Numbers of the one surviving species, the kereru (Hemiphaga novae- seelandiae), are declining rapidly due to habitat loss, poaching, predation, and interspecies competition that wiped out the other native birds. The keruru is the only remaining dispersal agent for several native trees that produce big seeds and fruits, mainly because it is the only remain- ing species that can swallow big fruits (left) and expel big seeds whole. One of these trees, the puriri (Vitex lucens), is New Zealand's most valued hardwood. Explain, in terms of natural selection, what would happen to puriri trees in New Zealand if the kereru becomes extinct.
2. All but one species of large birds native to New Zealand's tropical forests are now extinct. Numbers of the one surviving species, the kereru (Hemiphaga novae- seelandiae), are declining rapidly due to habitat loss, poaching, predation, and interspecies competition that wiped out the other native birds. The keruru is the only remaining dispersal agent for several native trees that produce big seeds and fruits, mainly because it is the only remain- ing species that can swallow big fruits (left) and expel big seeds whole. One of these trees, the puriri (Vitex lucens), is New Zealand's most valued hardwood. Explain, in terms of natural selection, what would happen to puriri trees in New Zealand if the kereru becomes extinct.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:2. All but one species of large birds native to New
Zealand's tropical forests are now extinct. Numbers of
the one surviving species, the kereru (Hemiphaga novae-
seelandiae), are declining rapidly due to habitat loss,
poaching, predation, and interspecies competition that
wiped out the other native birds. The keruru is the only
n.
ne
remaining dispersal agent
on
for several native trees
that produce big
seeds and fruits,
th
mainly because it
is the only remain-
ing species that can
swallow big fruits
(left) and expel big
ops
seeds whole. One of
these trees, the puriri (Vitex lucens), is New Zealand's
most valued hardwood. Explain, in terms of natural
selection, what would happen to puriri trees in New
Zealand if the kereru becomes extinct.
ower
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