crtase of fir and cedar, may contribute to a nor'3 closed forest that will 

 be disastrous to the deer population. The propar ratio' of sumraar to v/inter 

 range could be regulated, hor^evBr, ""oy continued loggin^;^ and opening of 

 timber -areas . 



.■•A thousand-acre experimental burn on che Lassen' National Forestj -■■;. 

 Calif., had the follox'ing effects upon v/ildlife: - ■ ■ 



1,. De-er Isft the area before the fire and r'etuined in ii!crea.'sing ' 

 number-s thQ.-.year after,, attra.pt^d, no doubt, by nev/- sprouting, shrubs and :- 

 inc.rei^se;^!. _annual vegetation.., .' v.- -■.;•-.■■ ■_,,. ^ .. .^ ... 



2, All rabbits, chiefly cottontails ( Syivilagus ")-, -7/3 re ■ killed, 'or . ■■■■■. 

 the feAiv: ^su'rvivors moved off immediately ,aftei the fire. Many carcasses 

 wsr:--: found, . :;■.'. . -. y ' •'^' ■' - \ ■ -'■■■-'■•■ .■:•.:••/ 



3, Chipmunks, wers- markedly reduced .but not ext'^rpated*. Breedin-g-. •-.:■.■ 

 stocks survived in sor.is of thi roclrj^ out'croppin^s i' •" 



4*. .. Mice of. th..j gmus .Poromvscus, although markedly raduced in num- 

 bers, survived the hptte st ...fire , This v/as-'lndi'bEvted by the .fact that 

 2 days .'after the., fire, adults and' their litters 'o'f young were caught :^n ■.; ." 

 traps in the center qf the burn id aroCv, Doubtless those mice f,scapcd the ■. 

 boat by going into d-jepjr .burrovrs, • ■. "• ;- •• ' : ,; ■• ■.._ 



After the, fire, ti-TO generations . of young pjr omyscu's r/ero producod,-: 

 thus augmoating th3.,p.o.pii.latiqu .of th^se sejd-eating rodents ,■'■- Tho re was •■ 

 a good sood crop of ■ .ponderosa.,' Jeffrey, "and' oven sugar prhd,"an^ S'<3od'was'; 

 T-oll scattered ov..r the burn. Mice vro re numerous ehoughi^' KoVrevo r, to pick 

 up most,, of. the seed, so that only a. small quantity remainjd to gorminato. 

 Brush :of the kinds, that o.rdiharily "follof/ fire (Arctostabhylos,. C jT.no thus , 

 and. Frunus; ) has.- made good. .gro".fth., producing' coiapjtition for the ' conifer • •".' 

 scadling.s,-. If this gi!P.'''^'t.h, continues it Trill rosul*t in dense grovrth 'favor-: 

 able to timber production but of limited value to gamo»' See-d consutiiption-. ' 

 by rodents greatly reduces tho number of see dllngs that might spring- up on; 

 brushfields after a burn, 



Bui^ns -discourage rabbits for several years. Perhaps lack of pro- 

 tective cover., is ,the. factor rcsponsi'ble ,. fVrtho r abb i"t -food" supply is 

 improved in quality,, quantity, "and diversity by th>.: burh^. -In -L^-SS a ' 

 small: pxp^jrimejatal burn r/as 'immediat jly plante'd to ponderosa pine, '.using 

 the fprc:ster's 1-1 stock, 'and an. ad joining 'unburn ed orea- also vras planted. 

 Rabbits., clipp.^d,. ,68 po.rcent. of th^. plants -on'- thy - green 'B-rush- arqa' ar^d -only . 

 23. percent --on... the burned " are\a, 'In .the, spring of 1^937' the" areas Tfcrc int'er- 

 pl-anted,- c,vnd,.the r>,sults in clipped seedlings i-ore 16'-pjof dent on ^ the burned 

 araa and 61 p,;.'.rcent on th ; grocn brush area -i ' In' miany- sections of the ^Cali- 

 fornia, pina .forests, rabbits' 'cause 'tiorisiderable "damr.ge •■to s:. dlings-,-and 

 planted stock of pin i by cutting off and'. 'mating tho young : -tro o.p . ^So]i;ie. 

 .sao'dlings are Icilljd," v;hi'le *ther's are "rotafded in--growth,,. th> t^piiinal . ■ 

 bud boihg tak-en out, follbiiring v/hibh, in tinic ,. fone of ■the,;lq.t'jrals..becom)5 



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