Order number 940330-160606-96
-001-001
page 46
set 11 with 111 of 111 items
About 41 species of birds have been recordéd at
Eniwetok. The birds that have arrived there‘have had to
be strong fliers. Many of the native seabirds are
species that have a vast range in the Pacificregion,
and many of them spend only the breeding season on land.
At least 12 species are known to breed on the atoll, and
at least four other species are thought to nest there.
Many other birds probably include Eniwetok within their
range.
ABSTRACT
BIRDS/species diversity ;ENIWETOK/baseline ecology ;
KEYWORDS
BIRDS; ENIWETOK; POPULATION DYNAMICS; SITE CHARACTERIZATION
EDB Item
67
PRIMARY REPORT NUMBER
DOE/EV/00703--T1-Vol.1
ANALYTIC TITLE ENGLISH Biology of the rodents of Enewetak Atoll
TITLE ENGLISH
The natural history of Enewetak Atoll: Volume 1,
AUTHOR ANALYTIC
PERSONAL AUTHOR
CORPORATE TEXT
PUB. DATE
ABSTRACT
(YYMMDD)
KEYWORDS
ecosystem:
Jackson,
Devaney,
(eds. )
Environments,
biotas,
and processes
The
W.B.; Vessey, S$.H.; Bastian, R.K.
D.M.; Reese, E.S.; Burch, B.L.; Helfrich,
Hawaii Univ.
at Manoa,
Honolulu
(USA)
;
P.
USDOE Office of
Scientific and Technical Information, Oak Ridge, TN
870000
Roof rats and Polynesian rats, introduced to the atoll
by 20th Century commerce and the Micronesians,
respectively, were present allopatrically on the larger
islets. Of necessity, they were largely vegetarians.
Reproductive cycles were keyed to rainfall patterns.
High density populations had high stress indices,
including high parasite loads. The rats, at the top of
the terrestrial food pyramid, constituted a
bioenvironmental monitor that was rarely utilized during
the several test programs. Bioconcentration of
radioisotopes, especially {sup 137}Cs and {sup 60}Co,
occurred; rats implanted with dosimeters were determined
to function as environmental radiation monitors. They
hypothesized that roof rats on Enjebi survived the
nearby nuclear detonation. Analysis of plasma
transferrins indicated greater heterozygosity in the
northern atoll rat populations. The incidence of oral
palatal ridge deformations also was positively
correlated with environmental radiation levels, but
other gross indications of radiation effect’ were not
found.
ENIWETOK/baseline ecology ;RODENTS/biology ;
RODENTS/radionuclide kinetics
;BIOLOGICAL INDICATORS;
BIOLOGICAL RADIATION EFFECTS;CESIUM 137;COBALT 60;
ENIWETOK;FOOD CHAINS;POPULATION DENSITY; RODENTS; BIOLOGY
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