Within-Season Synchrony of a Masting Conifer Enhances Seed Escape

被引:30
作者
Archibald, Devan W. [1 ]
McAdam, Andrew G. [2 ]
Boutin, Stan [3 ]
Fletcher, Quinn E. [1 ]
Humphries, Murray M. [1 ]
机构
[1] McGill Univ, Dept Nat Resource Sci, Ste Anne De Bellevue, PQ H9X 3V9, Canada
[2] Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada
[3] Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
reproductive synchrony; masting; cone phenology; natural selection; Tamiasciurus hudsonicus; Picea glauca; FLOWERING PHENOLOGY; REPRODUCTIVE SYNCHRONY; PHENOTYPIC SELECTION; NATURAL-SELECTION; EVOLUTIONARY ECOLOGY; POPULATION-GROWTH; CLARKS NUTCRACKER; GENETIC-VARIATION; ADAPTIVE VALUE; FRUIT-SET;
D O I
10.1086/664623
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071301 [植物生态学];
摘要
Predator satiation resulting from interannual reproductive synchrony has been widely documented in masting plants, but how reproductive synchrony within a year influences seed escape is poorly understood. We evaluated whether the intra-annual reproductive synchrony of individual white spruce trees (Picea glauca) increased seed escape from their primary predispersal seed predator, North American red squirrels (Tamiasciurus hudsonicus). Trees with cones that matured synchronously relative to those of other trees within red squirrel territories were significantly more likely to escape squirrel predation in years with both low and superabundant levels of cone production, generating a significantly positive linear selection differential for increasing intra-annual reproductive synchrony. Thus, this masting plant escapes seed predation in numbers through interannual synchrony in seed production and in time through intraannual synchrony of seed availability.
引用
收藏
页码:536 / 544
页数:9
相关论文
共 81 条
[1]
[Anonymous], 2001, Ecosystem dynamics of the boreal forest-The Kluane Project
[2]
Genetic variation in flowering phenology and avoidance of seed predation in native populations of Ulex europaeus [J].
Atlan, A. ;
Barat, M. ;
Legionnet, A. S. ;
Parize, L. ;
Tarayre, M. .
JOURNAL OF EVOLUTIONARY BIOLOGY, 2010, 23 (02) :362-371
[3]
PHENOLOGY, FLOWERING SYNCHRONY, AND FRUIT-SET OF 6 NEOTROPICAL SHRUBS [J].
AUGSPURGER, CK .
BIOTROPICA, 1983, 15 (04) :257-267
[4]
REPRODUCTIVE SYNCHRONY OF A TROPICAL SHRUB - EXPERIMENTAL STUDIES ON EFFECTS OF POLLINATORS AND SEED PREDATORS ON HYBANTHUS-PRUNIFOLIUS (VIOLACEAE) [J].
AUGSPURGER, CK .
ECOLOGY, 1981, 62 (03) :775-788
[5]
A keystone selective agent? Pine squirrels and the frequency of serotiny in lodgepole pine [J].
Benkman, CW ;
Siepielski, AM .
ECOLOGY, 2004, 85 (08) :2082-2087
[6]
Reciprocal selection causes a coevolutionary arms race between crossbills and lodgepole pine [J].
Benkman, CW ;
Parchman, TL ;
Favis, A ;
Siepielski, AM .
AMERICAN NATURALIST, 2003, 162 (02) :182-194
[7]
ADAPTATIONS FOR SEED DISPERSAL AND THE COMPROMISES DUE TO SEED PREDATION IN LIMBER PINE [J].
BENKMAN, CW ;
BALDA, RP ;
SMITH, CC .
ECOLOGY, 1984, 65 (02) :632-642
[8]
BENNINGTON CC, 1995, EVOLUTION, V49, P317, DOI 10.1111/j.1558-5646.1995.tb02244.x
[9]
Bolker Benjamin M., 2008, Ecological Models and Data in R
[10]
Boonstra R, 2001, ECOSYSTEM DYNAMICS OF THE BOREAL FOREST, P179