Abstract The development of silvicultural practices that seek to promote structural heterogeneity is increasingly demanded. This work investigates the effect thinning spatial pattern on response pre-commercial dense Aleppo pine post-fire stands. On three replicated experimental sites in SE Spain, we applied following treatments: 600 trees/ha, regular (600R), with residual trees evenly spaced; a...

We study the limiting distribution of the degree of a given node in a scaled attachment random recursive tree, a generalized random recursive tree, which is introduced by Devroye et. al (2011). In a scaled attachment random recursive tree, every node $i$ is attached to the node labeled $lfloor iX_i floor$ where $X_0$, $ldots$ , $X_n$ is a sequence of i.i.d. random variables, with support in [0,...

Old-growth forests provide important habitat elements for many species of wildlife. These forests, however, are rare where lands are managed for timber. In commercial forests, large and old trees sometimes exist only as widely-dispersed residual or legacy trees. Legacy trees are old trees that have been spared during harvest or have survived stand-replacing natural disturbances. The value of in...

We monitored reproductive success of northern spotted owls (Strix occidentalis caurina) at 51 sites on Simpson Timber Company’s (STC) managed, young-growth forests in northwestern California from 1991 to 1995. We compared habitat characteristics between sites with high and low fecundity at 5 spatial scales (concentric circles of 7, 50, 114, 203, and 398 ha), using 2 stratifications of annual re...

In this article, we explore modified versions of Multicast Overlay Spanning Tree algorithms (MOST) to support quality of service for wireless ad hoc networks. These algorithms (Q-MOST) take into account the interferences due to radio transmissions and the residual capacity of the nodes in the network. Different algorithms are compared to the basic MOST algorithm. We show by simulations the abil...

To assess if tree age may modulate the main climatic drivers of radial growth, two relict Pinus nigra subsp. salzmannii populations (María, most xeric site; Mágina, least xeric site) were sampled in southern Spain near the limits of the species range. Tree-ring width residual chronologies for two age groups (mature trees, age ≤ 100 years (minimum 40 years); old trees, age > 100 years) were buil...

The effects of early and continuous density control on tne characteristics of mature loblolly pine (Pinus tuedu L.) were measured at age 38 and analyzed. Trees in plots planted at spacings of 1.8x 1.8, 2.4x2.4, 2.7x2.7, 3.0x3.0, and 3.7x3.,7 m were either left unthinned or thinned every 5 years beginning at age 18, to residual basal areas of 27.5, 23.0, 18.4, and 13.8 m2 haa’. Trees thinned fro...

Partial forest harvesting is known to modify both above- and belowground resource availability and may result in direct and indirect stress to the residual trees as a result of machinery traffic and sudden changes in irradiance. We studied sugar maple (Acer saccharum Marsh.) trees in stands that had undergone a selection harvest 11 years before sampling to verify whether sudden increases in lig...