+ Translate
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Seed loss before seed predation: experimental evidence of the negative effects of leaf feeding insects on acorn production

Seed loss before seed predation: experimental evidence of the negative effects of leaf feeding insects on acorn production

Integrative Zoology 13(3): 238-250

ISSN/ISBN: 1749-4869

PMID: 29168612

DOI: 10.1111/1749-4877.12292

Insect herbivory decreases plant fitness by constraining plant growth, survival and reproductive output. Most studies on the effects of herbivory in trees rely on correlational inter-individual comparisons and could, thus, be affected by confounding factors linked to both herbivory and plant performance. Using the Mediterranean Holm oak (Quercus ilex) as a study model, we followed an experimental approach in which leaf-feeding insects (mainly Lepidoptera caterpillars) were excluded from some shoots in all study trees. Shoots subjected to herbivore exclusion exhibited lower defoliation rates and produced more acorns than control shoots. Defoliation constrained shoot growth throughout the study period, but had no effect on the number of female flowers produced per shoot. Acorn production was, however, lower in control shoots due to their higher abortion rates, and also to their greater mortality risk during summer drought, as shoots with fewer leaves were less likely to survive. Plant reaction to herbivory inhibits certain physiological pathways involved in plant growth, which, together with the effects of physical damage, reduces the amount and efficiency of the photosynthetic tissue. This increases their vulnerability to environmental stresses, such as water deficit, which limit resource assimilation. Defoliation is likely a key factor affecting oak regeneration, as it may be a significant source of seed loss prior to pre-dispersal acorn predation. Further experimental studies could help to elucidate its effects in contrasting environments. In Mediterranean regions, the harsher droughts predicted by climate change models could worsen the effects of insect herbivory on oak reproductive output.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 060231367

Download citation: RISBibTeXText

Related references

Total annual seed loss on a perennial legume through predation by insects: The importance of within-season seed and seed feeder dynamics. Australian Journal of Ecology 30(4): 414-425, 2005

Studies on acorn production and seed predation in Quercus serrata - growth, falling phenology, estimation of production, and insect seed predators. Bulletin of the Osaka Museum of Natural History. march; 47: 1-17, 1993

Silvicultural treatment effects on oak seed production and predation by acorn weevils in southeastern Ohio. Forest Ecology and Management 255(7): 2566-2576, 2008

Effects of asynchronous acorn production by co-occurring Quercustrees on resource utilization by acorn-feeding insects. Journal of Forest Research 16(1): 62-67, 2011

Effects of seed traits and seed production on the seed predation and dispersal behavior of rodents. Ying Yong Sheng Tai Xue Bao 29(12): 4181-4190, 2018

Seed predation and seedling mortality in the recruitment of a shrub, Haplopappus venetus (Asteraceae), along a climatic gradient Predispersal seed predation on seed production, California. Ecology: a ication of the Ecological Society of America 64(3): 511-521, 1983

Seed predation by insects in tropical mangrove forests: extent and effects on seed viability and the growth of seedlings. Oecologia 83(2): 213-219, 1990

Environmental architecture - preventing loss of seed production to insects in black and white spruce seed orchards. Information Report Newfoundland and Labrador Region, Forestry Canada ( N-X-274): 100-117, 1990

Seed density affects post-dispersal seed predation: evidence from a seed removal experiment of 62 species. Integrative Zoology 15(2): 135-143, 2020

Seed-predator satiation and Janzen-Connell effects vary with spatial scales for seed-feeding insects. Annals of Botany 119(1): 109-116, 2017

Pre-Dispersal Acorn Predation in Mixed Oak Forests: Interspecific Differences Are Driven by the Interplay among Seed Phenology, Seed Size and Predator Size. Journal of Ecology 97(6): 1416-1423, 2009

Effects of predispersal seed predation on seed production in Baptisia lanceolata and B perfoliata. American Journal of Botany 81(6 Suppl): 74, 1994

Spatially-explicit interactions between tree seed production and seed predation by generalist vertebrate seed predators. Bulletin of the Ecological Society of America 77(3 Suppl Part 2): 69, 1996

Pollination of Viscaria vulgaris (Caryophyllaceae): the contributions of diurnal and nocturnal insects to seed set and seed predation. Oikos 523: 319-327, 1988

Special seed-production number. Storage of seed and control of insects in stored seed. Fmg S. Afr 19: 271-3, 1944