Topic
Undergrowth
About: Undergrowth is a research topic. Over the lifetime, 795 publications have been published within this topic receiving 11911 citations. The topic is also known as: understorey & underbrush.
Papers published on a yearly basis
Papers
More filters
TL;DR: The life style adopted by the blue duiker represents an exception among forest ruminants, and appears to be a well adapted response to various ecological pressures, especially predation.
Abstract: The blue duiker is a small, frugivorous, strictly diurnal ruminant that occupies forest with open undergrowth. The social group consists of a ♂-♀ pair with the young of the last two litters. Pairs seem permanent in small territories adjacent to each other, without any noticeable overlap. The population density is high.
The life style adopted by the blue duiker represents an exception among forest ruminants, and appears to be a well adapted response to various ecological pressures, especially predation.
77 citations
TL;DR: In this article, the authors investigated the changes of ground vegetation (field layer: mosses, lichens; ground layer: herbs, shrubs, tree seedlings and saplings) and regeneration of tree species in pine forests after surface fires.
76 citations
TL;DR: In this article, the influence of grazing and burning on forest density and structure in the 19th century landscape were analyzed using historical sources, and the development of the landscapeduring the 20th century, together with the impact of modern forest management methods on foreststructure, were examined using geographic information system techniques.
Abstract: Detailed spatial changes in foreststructure in a central Swedish landscape were examinedusing geographic information system techniques. First,the influence of grazing and burning on forest densityand structure in the 19th century landscape wereanalyzed. Then, the development of the landscapeduring the 20th century, together with the impactof modern forest management methods on foreststructure, were analyzed using historical sources. In1907, over 20% of the 2200 hectare study site wassparsely-wooded (12 m3 ha−1) with old trees.These areas have been reforested with single-storiedmiddle-aged and old pine stands (66 m3 ha−1in 1989) during the 20th century. Firesuppression and changes in land use from subsistence-to-industrialforestry, facilitated Norway spruceregeneration as undergrowth in open Scots pine standsafter logging. This natural regeneration has, to alarge extent, been cut down and replaced by pineafforestation. During the second half of the 20thcentury, the standing timber volume has steadilyincreased, while the mean age of the forest hasdecreased. Today's young dense forests will result inhigher timber values in the coming decades, but theforest has lost a range of ecological niches.
75 citations
Book•
01 Jan 1922
TL;DR: There are two Californian formations in which the broad-sclerophylls are the dominating element as mentioned in this paper, and the grounds upon which the formations have been distinguished, and their range, composition and structure, will be given here.
Abstract: There are two Californian formations in which the broad-sclerophylls are the dominating element — the broad-sclerophyll forest formation and the chaparral formation. Each is in part climax, in part successional. Further, there is a broad-sclerophyll element of minor importance in the redwood forest, making a rather large part of its undergrowth. The grounds upon which the formations have been distinguished, and their range, composition and structure, will be given here.
74 citations
TL;DR: It is suggested that both the fire disturbance regime and bamboolife-cycle greatly influence the structure and dynamics of this seasonal tropical forest.
Abstract: . Structural dynamics of a natural tropical seasonal –mixed deciduous – forest were studied over a 4-yr period atMae Klong Watershed Research Station, Kanchanaburi Prov-ince, western Thailand, with particular reference to the role offorest fires and undergrowth bamboos. All trees > 5 cm DBHin a permanent plot of 200 m × 200 m were censused every twoyears from 1992 to 1996. The forest was characterized by alow stem density and basal area and relatively high speciesdiversity. Both the bamboo undergrowth and frequent forestfires could be dominant factors that prevent continuous regen-eration. Recruitment, mortality, gain (growth of survival treeplus ingrowth) and loss in basal area (by tree death) during thefour years were 6.70 %/yr, 2.91 %/yr, 1.22 %/yr and 1.34 %/yr,respectively. Mortality was size dependent; middle size trees(30 - 50 cm) had the lowest mortality, while the smallest (5 - 10cm) had the highest mortality. Tree recruitment was observedparticularly in the first two years, mostly in the area where die-back of undergrowth bamboo occurred. The bias of the spatialdistribution of recruitment to the area of bamboo die-back wassignificant and stronger than that to the forest canopy gaps.Successful regeneration of trees which survive competitionwith other herbs and trees after dieback of bamboo could occurwhen repeated forest fires did not occur in subsequent years. Itis suggested that both the fire disturbance regime and bamboolife-cycle greatly influence the structure and dynamics of thisseasonal tropical forest.Keywords: Bamboo; Canopy gap; Forest fire; Kanchanaburi;Mortality; Recruitment; Spatial pattern.Nomenclature: Smitinand (1980).
72 citations