Partially stratified (11 days) southern red oak (Quercus @cam Michx.) acorns were placed at three depths in a reconstructed forest floor and subjected to simulated prescribed winter bums. Within the forest floor, acorns were placed within the L layer, at the upper-F/ lower-F interface, and at the lower-F/mineral-soil interface. Winds for a backfire and headfire were generated by electric box-fa...

ZEMAN JAROSLAV, HRBEK JAN, DRIMAJ JAKUB, PLHAL RADIM, KAMLER JIŘÍ, ADAMEC ZDENĚK, HEROLDOVÁ MARTA. 2016. Wild Boar Impact to the Natural Regeneration of Oak and Acorn Importance in its Diet. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(2): 579–585. In this study, the impact of wild boar on the natural regeneration of oak and importance of acorns in the wild boar di...

Mechoris ursulus (Roelofs) (Coleoptera: Attelabidae) is a pest weevil of Fagaceae oak trees in eastern Asia. The female has a distinct branch-cutting behavior in conjunction with oviposition in the acorns of its host plant. This study analyzed the factors influencing oviposition preference by carrying out continuous field surveys over the course of 2009-2010 and through laboratory rearing. The ...

This study examined variation in two components of acorn production. Percentage of bearing ramets (stems) and number of acorns per bearing ramet were examined in five clonal oaks in three xeric habitats of south-central peninsular Florida in relation to ramet size within and between species and vegetative associations. Counts of acorns on two white oaks (Quercus chapmanii and Q. geminata) and t...

Although the consequences of cotyledon removal have been widely studied in oaks producing large acorns, we have little knowledge of at what level cotyledons can be removed without affecting acorn survival and seedling development. In this study, we aimed to test the hypothesis that the amount of energy reserves in cotyledons is more than the demands of seedlings and that large acorns can tolera...

We studied the interactions involving oak acorns and associated arthropods focusing on role of introduced Quercus rubra in Italy. conducted our study areas where native oaks coexist with Q. rubra. carried out a survey inhabiting fallen colonisation experiment. Furthermore, we laboratory experiments documenting among most abundant arthropod species Acorns were colonised by ant carpophagous insec...

Morphological variations of acorn among and within the groups of Quercus species were studied. A total of 617 acorns belonging to 14 species representing all 3 sections of Quercus L. (Fagaceae) in Turkey were examined in this study. Specimens were collected from 47 different populations over both Anatolian and Thrace part of Turkey. Principal component analysis was used to analyze the morpholog...

We assessed dietary preference of 14 captive Blue Jays (Cyanocitta cristata) for different food types under different conditions of availability. In four separate feeding trials, we provisioned jays with the following: Trial 1, two nuts each of white oak (Quercus alba), pin oak (Q. palustris), black oak (Q. velutina), northern red oak (Q. rubra), and shagbark hickory (Carya ovata); Trial 2, two...

Quercus crispula (=Q. mongolica var. grosseserrata) is the predominant tree species in cool temperate, mixed broadleaf/conifer forests in northern Japan. We compared 11 years of data on acorn production in a population of Q. crispula, with data on seed-insect populations, to try to answer the following questions: (1) Does Q. crispula show a regular pattern of masting? (2) How long do principal ...