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Mourning Dove (Zenaida macroura) Harvest and Population Parameters Derived From a National Banding Study (Paperback)
Loot Price: R385
Discovery Miles 3 850
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Mourning Dove (Zenaida macroura) Harvest and Population Parameters Derived From a National Banding Study (Paperback)
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Loot Price R385
Discovery Miles 3 850
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The Mourning Dove (Zenaida macroura; dove) is the most harvested
migratory game bird in North America and a ubiquitous species that
is valued and easily recognized by the general public. Informed
harvest management of this important recreational resource requires
knowledge of harvest attributes and population vital rates, several
of which are estimable from banding and from hunter-harvested
birds. We conducted a national-scale banding program in 2003 - 2005
to generate such data for estimation of band reporting rates,
harvest rates, distribution and derivation of harvest, and annual
survival rates. The study required training of a new cadre of
biologists in field techniques and establishment of data collection
and management protocols, as well as providing an opportunity to
evaluate logistics and costs associated with the large-scale study
design. During 2003 - 2005, biologists in 29 participating states
banded nearly 100,000 birds, and hunters have reported almost 5,000
bands to date from harvested doves. In 2004 and 2005, a proportion
of the trapped and released doves received an extra reward band
which allowed estimation of the probability that a hunter reported
a band from a harvested dove to the United States Geological Survey
Bird Banding Laboratory. This reporting rate varied considerably
among geographic regions (range: 0.40 - 0.85). Weighted average
adult harvest rates for the Eastern Management Unit and Central
Management Unit were similar. Adult harvest rates were greatest in
the Western Management Unit, but this estimate was influenced by
the single large estimate from California in 2005. Juvenile harvest
rates were greatest in the Eastern Management Unit and similar in
the Central Management Unit and Western Management Unit. With the
exception of only a few states in the northern U.S., at least 80%
of the harvest of banded adults and juveniles occurred in the state
of banding. Similarly, with only a few exceptions, nearly all
recoveries in each state were derived from banded cohorts in the
same state. Average adult subregion survival rates were generally
greater than corresponding subregion juvenile survival rates.
Comparison to results from reporting rate studies conducted more
than 30 years ago suggests a large average increase in reporting
rate, probably due to the availability of the Bird Banding
Laboratory toll-free telephone number for reporting bands. The last
national-scale dove banding study was conducted more than 30 years
ago, and a comparison of harvest rates suggests current harvest
rate estimates for both age classes in Eastern Management Unit and
Western Management Unit states are generally less than previous
estimates, while estimates are greater or about the same in Central
Management Unit states. Survival rates from the earlier study were
significantly greater for both age classes in the Eastern
Management Unit and the Central Management Unit, but no differences
were found in the Western Management Unit. We did not find any
important changes in harvest distribution or derivation patterns
within the management units. This study provided the foundation for
an operational long-term banding program that is critical to the
implementation of the National Mourning Dove Strategic Harvest
Management Plan (Anonymous 2005), which describes the conceptual
framework for an improved, informed system of harvest management
for doves.
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