A 10-Year Analysis of Beechnut Production and Use in Michigan

Gysel, Leslie W.

doi:10.2307/3799706

Cited by 39 publications

(16 citation statements)

References 1 publication

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“…For European beech (F. sylvatica), alternate seeding was observed at the same stand (9 ha) for 12 years (Gurnell, 1993), but no such phenomenon was found for 15-20 acres of American beech (F. grandifolia), observed for 10 years (Gysel, 1971). Mast seeding occurred in 4-5 year intervals in both species.…”

Section: Discussionmentioning

confidence: 69%

“…Masting of this species has been monitored over the long-term, as in other Fagus species (Gysel, 1971;Gurnell, 1993), to obtain information for natural regeneration practices and wildlife management because seeds of F. crenata are a most important food resource for mammals. However, it is still difficult to predict the yearly seed production because almost all the census data have been obtained from local populations.…”

Section: Introductionmentioning

confidence: 99%

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Mast seeding and its spatial scale in Fagus crenata in northern Japan

Suzuki

Osumi

Masaki

2005

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Mast seeding and its spatial scale in Fagus crenata in northern Japan

Suzuki

Osumi

Masaki

2005

Forest Ecology and Management

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“…For 14 observations (12 species) in Table 1 the data permit us to evaluate Q 0 (the original number of filled seeds prior to abscission). The following studies differentiate between collected filled seeds and collected seeds that showed evidence of damage by insects, rodents, or fungi: Downs and McQuilkin (1944), Carvall and Korstian (1955), Gysel (1971), and present study. The study of three conifer species by Fowells and Schubert (1956) allows us to estimate pre-abscission losses of filled seeds because they compared trapped seed number with estimates of the original number based on ovulate cone counts.…”

Section: Methodsmentioning

confidence: 81%

“…Might pre-abscission seed mortality be dependent upon seed number or seed mass? For 14 observations (12 species), the data permit evaluation of the initial pre-abscission filled seed production (Downs and McQuilkin 1944, Carvall and Korstian 1955, Powells and Schubert 1956, Gysel 1971. That is, we can estimate the number of filled seeds preyed upon by insects or mammals prior to abscission, and thus obtain Q 0 , the original number of filled seeds per tree: (4) The exponent is almost identical to Eq.…”

Section: Seed Production By Treesmentioning

confidence: 89%

Estimating the Mean Annual Seed Production of Trees

Greene¹,

Johnson²

1994

Ecology

209

157

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Intraspecifically, plant seed production is a function of both seed size (mean mass per seed) and plant size. In this paper we examined the interspecific relationship between the size of seeds and plants and the mean long—term annual seed production per tree. For canopy trees, we show that seed production is highly (inversely) correlated with the mean seed mass as a power law argument. Tree size (basal area or leaf mass) is directly proportional to seed production over a limited range. Analysis of seed production for herbaceous plants indicates a relationship similar to that for trees. As the exponent relating seed size to seed production is >°1.0, it follows that large—seeded plants produce more total annual crop mass than do small—seeded species. However, this is balanced by the greater investment in ancillary reproductive tissue by smaller seeded species. The results obtained here ought to be of theoretical and applied interest in, for example, stand—level simulations of population dynamics or for planning the optimal size and shape of clearcuts intended to be regenerated naturally.

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“…Masting, i.e., events of massive reproduction separated by periods of no or low reproduction, has been related to carbon pool exhaustion and subsequent replenishment within the individual (Silvertown, 1980;Kelly, 1994). Masting may negatively affect the growth of an organism for several years, thereby creating significant temporal variations in growth (Gysel, 1971). But factors other than internal ones may cause temporal variability in both reproduction and growth.…”

mentioning

confidence: 99%

Climate influences on growth and reproduction of Pinus banksiana (Pinaceae) at the limit of the species distribution in eastern North America

Despland

Houle

1997

American J of Botany

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The presence of conflicts in the allocation of resources among the different functions of an organism is a fundamental postulate of modern ecology. It is assumed that reproduction occurs at a cost because it monopolizes resources that could be used for other functions (e.g., growth). These conflicts may be particularly evident under stressful conditions, such as under low water or nutrient availability, or under severe climatic conditions. There we may expect to find strong negative relationships between an organism's growth and reproduction. We studied a population of Pinus banksiana (Pinaceae) at the northern limit of the species distribution, in subarctic Québec (Canada) where Pinus banksiana occupies nutrient-poor, sandy terraces along the Great Whale river. Serotinous cones of Pinus banksiana produced between 1969 and 1992 were sampled to estimate interannual variations in several variables representing reproduction, and to relate these to climate and tree growth. Climate appears to influence each developmental stage involved in the production of viable seeds, from the time of cone initiation to that of seed maturation. In general, reproductive variables are positively related to high temperatures during the three growing seasons required for seed production; growth is also positively correlated to summer temperatures. Consequently, investment in maturing seeds is positively associated with growth. Thus, both reproduction and growth covary with climate: during relatively warm and long growing seasons, resource allocation to both functions increases. Under these conditions, no trade-off is apparent.

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A 10-Year Analysis of Beechnut Production and Use in Michigan

Cited by 39 publications

References 1 publication

Mast seeding and its spatial scale in Fagus crenata in northern Japan

Mast seeding and its spatial scale in Fagus crenata in northern Japan

Estimating the Mean Annual Seed Production of Trees

Climate influences on growth and reproduction of Pinus banksiana (Pinaceae) at the limit of the species distribution in eastern North America

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