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Conserving Migratory Pollinators and Nectar Corridors in Western North America (Hardcover, New)
Loot Price: R1,458
Discovery Miles 14 580
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Conserving Migratory Pollinators and Nectar Corridors in Western North America (Hardcover, New)
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When migrating birds and other creatures move along a path of plant
communities in bloom, they follow what has come to be known as a
nectar trail. Should any of these plants be eliminated from the
sequence--whether through habitat destruction, pests, or even
aberrant weather--the movement of these pollinators may be
interrupted and their very survival threatened. In recent efforts
by ecologists and activists to envision a continental-scale network
of protected areas connected by wildlife corridors, the peculiar
roles of migratory pollinators which travel the entire length of
this network cannot be underestimated in shaping the ultimate
conservation design. This book, a unique work of comparative
zoogeography and conservation biology, is the first to bring
together studies of these important migratory pollinators and of
what we must do to conserve them. It considers the similarities and
differences among the behavior and habitat requirements of several
species of migratory pollinators and seed dispersers in the
West--primarily rufous hummingbirds, white-winged doves, lesser
long-nosed bats, and monarch butterflies. It examines the
population dynamics of these four species in flyways that extend
from the Pacific Ocean to the continental backbone of the Sierra
Madre Oriental and Rocky Mountains, and it investigates their
foraging and roosting behaviors as they journey from the Tropic of
Cancer in western Mexico into the deserts, grasslands, and
thornscrub of the U.S.-Mexico borderlands. The four pollinators
whose journeys are traced here differ dramatically from one another
in foraging strategies and stopover fidelities, but all challenge
many of the truisms that have emerged regarding the status of
migratory species in general. The rufous hummingbird makes the
longest known avian migration in relation to body size and is a key
to identifying nectar corridors running through northwestern Mexico
to the United States. And there is new evidence to challenge the
long-supposed separation of eastern and western monarch butterfly
populations by the Rocky Mountains as these insects migrate. This
book demonstrates new efforts to understand migratory species and
to determine whether their densities, survival rates, and health
are changing in response to changes in the distribution and
abundance of nectar plants found within their ranges. Representing
collaborative efforts that bridge field ecology and conservation
biology in both theory and practice, it is dedicated to
safeguarding dynamic interactions among plants and pollinators that
are only now being identified.
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