Notice of Hearing on the Application to Use Sodium Fluoroacetate ...

,Vai-mai i m srzdzfsrs .rers ~emoved frx a ! ,55C heczar? -?re2 incl !ic: ng
- ,
ine treated :asiure 2nd 2 1 . s i:n. juifer zone an rhrer i,ldss. Six:;/-
nine coyotes, 11 bobcats and 32 smaller namaiian predzi3rs :Vera
ki 1 led on ihe tr2atier;c araa in 1975. Tile cake in 1976 was 63
coyotes, seven bobcats and 32 small er predaiors. Predaizor ac;; vi ty
on the treated area, dersrmined by scat counts, was 80 percen: 1esi
chan chat on ihe untreated area. Pradation 10sies on the untre::ad
9asTur-e were 33 percenr ci ?he kid crco, uhile nnkncwn l~sses
(disappeared without a trace) totaled 52 perc3nr ci the kid croo.
Ccnparahle figures on cne treated pasare were 16 percent 2nd d3
rercent respecij-iely . :dost <strong>of</strong> th2 unknown losses were actri bur?<
to 7redators because <strong>of</strong> the prosence <strong>of</strong> coyote scsti ccntainlng
mohai r concurrent ',~i :h an animal ' s disappearance, because survival
raws were hisher gn tne creatod area and becaus2 disels? and
abnomai i ties zrnoncj rhe ?id crop Nere rzre. ?r.-dation sf scu::
goats yas 24 percent <strong>of</strong> ihe iiock on ihe untreated ?asiure and zero
on the ireated area. The study concluded that intensiie ?recator
control could iubstantially increase the sur-iilial rat. <strong>of</strong> kids and
goats, bu? vas insufficient ra curta:! large losses to pr2iafion
when conducted on a small scale or a: d level no grsater than thai
in the study.
120. Basic to the oqposi tion to the use <strong>of</strong> Compound lC8O in large-bai t
stations is the contention that- heavy and sustained exploi taizion <strong>of</strong>
coyote populatfons merely results in increased reproduction, iower