منابع مشابه
MECHANISMS OF OAK DISPERSAL Acorn Characteristics and Oak Dispersal
INTRODUCTION Although oaks dominate many forest ecosystems worldwide (Barnes and others 1998), several aspects of oak ecology remain poorly understood including oak regeneration and masting (McShea and Healy 2001). Animals that eat and disperse acorns, such as squirrels, mice, and jays may play a pivotal role in oak forest dynamics (Jones and others 1998, Ostfeld and others 1996), influencing r...
متن کاملAcorn production in Spanish holm oak woodlands
We present a review on the state-of-the-art of fruit prodution in Western Iberia woodlands («dehesas»), and particularly in Q. ilex (holm oak) «dehesas». This threatened ecosystem is of very high ecological and economical importance. Quercus sp. fruits (acorns) are essential for wildlife, and for pig fattening in «dehesas». In the first part of this review we briefly describe the phenology of t...
متن کاملAdding Iranian oak acorn (Quercus brantii) to the diet of common carp (Cyprinus carpio Linnaeus, 1758) and its effects on growth performance, carcass composition and resistance to salinity stress
At this study, the effects of adding Iranian acorn flour on growth performance, carcass composition and resistance to salinity stress of common carp were investigated. Experimental diets included: 1) without acorn and not autoclaved diet; 2) without acorn and autoclaved diet for 2 minutes; 3) without acorn and autoclaved diet for 10 minutes; 4) with 10 percent acorn and not autoclaved diet; 5) ...
متن کاملRemobilization of acorn nitrogen for seedling growth in holm oak (Quercus ilex), cultivated with contrasting nutrient availability.
The relative contribution of nitrogen (N) reserves from seeds or uptake by the roots to the growth and N content of young seedlings has received little attention. In this study, we investigated the contribution of N from the acorn or uptake by the roots to the N content of holm oak (Quercus ilex L.) seedlings and determined if remobilization of acorn N was affected by nutrient availability in t...
متن کاملAcorn Fall and Weeviling in a Northern Red Oak
In 2000, we determined levels of damage by acorn weevils (Curculio spp.) and patterns of acorn fall in a northern red oak (Quercus rubra L.) seedling orchard in eastern Tennessee. The mean (ISE) production of acorns among 43 selected trees was 5,930 rt 586 acorns per tree with a maximum production level of 16,969 acorns for one tree. Trees were selected in the spring of 2000 based on abundance ...
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ژورنال
عنوان ژورنال: Gradus
سال: 2020
ISSN: 2064-8014
DOI: 10.47833/2020.2.agr.009