Relationship of spruce budworm (Choristoneura fumiferana) emergence and balsam fir (Abies balsamea) bud flush to climate indices | Zendy

A. J. Thomson | Zendy

Open Access

Relationship of spruce budworm (Choristoneura fumiferana) emergence and balsam fir (Abies balsamea) bud flush to climate indices

Author(s) -

A. J. Thomson

Publication year - 2009

Publication title -

the forestry chronicle

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 49

eISSN - 1499-9315

pISSN - 0015-7546

DOI - 10.5558/tfc85625-4

Subject(s) - balsam , choristoneura fumiferana , spruce budworm , abies balsamea , teleconnection , forestry , phenology , pacific decadal oscillation , biology , geography , ecology , botany , environmental science , climatology , larva , el niño southern oscillation , tortricidae , sea surface temperature , meteorology , geology

Temperature records from weather stations across eastern Canada were used with published data on degree-day requirements for spruce budworm larval emergence and balsam fir bud flush to estimate historical patterns of larval emergence and timing of bud flush. The pattern of association was studied using Response Surface Analysis and was found to vary from west to east. April values of the Pacific/North American (PNA) pattern, Pacific Decadal Oscillation (PDO) and Northern Annular Mode (NAM) climate indices showed the most significant relationship to both emergence and bud flush in the 2 Ontario stations, while May values of the PDO and Eastern Pacific (EP) indices were most significant in the 4 Quebec and New Brunswick locations. Key words: phenology, balsam fir, teleconnections

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