[1] Abbott,H.G.Ecology of eastern white pine seed caches made by small forest mammals.Eoology, 1970,51:271-278. [2] Balda,R.P.Flocking and annual cycle of t he pinon jay.Condor,1971,73:287-302. [3] Balda,R.P.Are seed caching systems coevolved? Acta Congr.I nt.O rnit hology,1980,2:1185-1191. [4] Borchert,M.I.Interaction of factors affecting seedling recruit ment of blued oak in California.E cology,1989,70:389-404. [5] Bossema,I.Jays and oaks:An eco-et hological study of a symbiosis.Behaviour,1979,70:1-117. [6] Brown,B.W.Foraging ability,dominance relations and competition for food by fox and gray squirrels.T rans.Ill.Acad.Sci.,1985,78:61 -66. [7] Chettleburgh,M.R.Observations on t he collection and burial of acorns by jays in Hainault Forest. B r.Bi rds,1952,45:359-364. [8] Clarkson,K.Density dependence and magpie food foraging.J.A ni m.Eool.,1986,55:111-121. [9] Darley-Hill,S.Acorn Dispersal by blue jays.Oecologia,1981,50:231-232. [10] Eigelis,Y.U.The morphological peculiarities of t he burial cavity of Corvidae as related to food transportation.Zool.Zh.,1967,46:258-263. [11] Evans,R.A.Dynamics of antelope bitterbrush seed caches.U.S.Dept.of Agriculture,Forest Service,Gen.Tech.Rept.IN T,1983,152:195 ? l -202. [12] Fenner,M.Seed ecology.New York:Chapman and Hall.1985. [13] Griffin,J.R.Oak regeneration in t he upper Carmel Valley,California.Eoology,1971,52:86-868. [14] Howe H.F.Ecology of seed dispersal.A nn Res. Ecol.S yst.,1982,13:201-228. [15] Hutchins,H.E.The central role of Clark's nutcracker in t he dispersal and establishment of whitebark pine.Oecolol gia,1982,55:192-201. [16] Jaznen,D.H.Seed predation by animals.A nn. Revs.Ecol.S yst.,1971,2:465-492. [17] Johnson,W.C.Dispersal of beech nuts by blue jays in fragmented landscapes.A m.Mi dl.N at., 1985,113:319-324. [18] Johnson,W.C.Handling of pinyon pine seed by t he Clark's nutcracker.Condor,1987,89:117-125. [19] Kikuzawa,K.Dispersal of acorns in a braoadleaved deciduous forest.For.Ecol.M anage.,1988,25: 1-8. [20] Lanner,R.M.Dispersal of limber pine seed by Clark's nutcracker.J.f orest.,1980,78:637-639. [21] Lanner,R.M,Bristlecone pine and Clark's nutcracker:Probable interaction in t he White Mountains,California.Great B asi n N at.,1984, 44:357-360. [22] Lal,H.Walnt seed germination.I.Effect of planting dept h and seed position in soil.Prog. Hort.,1984,16:6-8. [23] Ligon,J.D.Green cones of t he pinon pine stimulate late summer breeding in t he pinon jay.N a t ure,1974,250:80-82. [24] Ligon,J.D.Reproductive interdependence of pinon jays and pinon pines.Eool.Monogr.,1978, 48:111-26. [25] Nilsson,S.G.Ecological and evolutionary interaction between reproduction of beech and seed eating animals.Oikos,1985,44:157-164. [26] Saito,S.Caching of Japanese stone pine seeds by nutcrackers at t he Shiretoko peninsula,Hokkaido. Tori,1983,32:13-20. [27] Sherry,D.F.Food storage,memory and marsh tits.A ni m.Bekan.,1982,30:631-633. [28] Sherman,R.J.Spatial and chronological patterns of Purshia t ri dentata as influenced by Pi nus pon derosa.Ecology,1972,53:292-298. [29] Smit h,C.C.The evolution of food caching by birds and mammals.A nn.Res.Ecol.S yst., 1984,15:329-351. [30] Stebbins,G.L.Adaptive radiation of reproductive characteristic in Angiosperms.A nn.Res.Ecol. S yst.,1971,2:237-260. [31] Stiles,E.W.Fruit seeds and dispersal agents.In: Abrhamson,W.G.eds.Plant-animal lnterac tions.New York:Mc Graw-Hill Book company. 1989. tions.New York:Mc Graw-Hill Book company. 1989. [32] Tomback,D.F.Foraging strateges of Clark's nutcrackers.L ivi ng Bi rd,1978,16:123-161. [33] Vander Wall,S.B.Coadaptations of t he Clark's nutcracker and t he pinonpine for efficient seed har vest and dispersal.Eool.Monogr.,1977,47:89-111. [34] Vander Wall,S.B.Ecology and evolution of food-storage behavior in conifer-seed-caching corvids. Z.Tierpsychol.,1981,56:217-242. [35] Vander Wall,S.B.Remembrances of seeds cashed. N at.Hist.,1983,92:60-65. [36] Vander Wall,S.B.Foraging of Clark's nutcrackers on rapidly changing pine seed resources.Condor, 1988,90:621-631. [37] Vander Wall,S.B.Food Hoarding in Animals. The Univercity of Chicago Press,Chicaco.1990. [38] Woodmansee,R.G.Clusters of limber pine trees. A hypot hesis of plant-animal coaction.Sout hw. N at.,1977,21:511-517. |