Results 11 to 20 of about 23,036 (209)
Forest overstory-understory relationships in Alabama forests [PDF]
Forest Ecology and Management, 1987 Abstract This study developed regional overstory-understory models for four forest types in southeastern Alabama and tested the ability of these models to predict understory vegetation using overstory data from southern and southwestern Alabama. Cross-sectional data from the USDA Forest Service Forest Inventory and Analysis Unit Multiresource Survey ...
L.A. Joyce, R.L. Baker
openaire +1 more source
Distribution of Terrestrial Isopods (Crustacea: Isopoda) Throughout Michigan: Early Results [PDF]
, 2018 Results are reported from the first two years of a multi-year study on the distribution of terrestrial isopods (Crustacea: Isopoda) in Michigan. During the first year of the study (1997), intensive investigations were carried out using pitfall traps in ...
Stoyenoff, Jennifer L
core +3 more sources
Field Tests of Kairomones to Increase Parasitism of Spruce Budworm (Lepidoptera: Tortricidae) Eggs by \u3ci\u3eTrichogramma\u3c/i\u3e Spp. (Hymenoptera: Trichogrammatidae) [PDF]
, 2017 Hexane extracts of spruce budworm, Choristoneura fumiferana, moth scales, applied at 0.04 moth-gram equivalents/branch and at 0.06 moth-gram equivalents/tree, failed to increase parasitism rates of Trichogramma spp.
Jennings, Daniel T, Jones, Richard L
core +2 more sources
Ecological Applications, 2018 Cities are increasingly focused on expanding tree canopy cover as a means to improve the urban environment by, for example, reducing heat island effects, promoting better air quality, and protecting local habitat. The majority of efforts to expand canopy
Clara C. Pregitzer +6 more
semanticscholar +1 more source
Forests, 2018 Seasonal timing of prescribed fire and alterations to the structure and composition of fuels in savannas and woodlands can release understory hardwoods, potentially resulting in a global increase of closed-canopy forest and a loss of biodiversity.
A. Whelan +3 more
semanticscholar +1 more source
Forests, 2018 The severity of lodgepole pine mortality from mountain pine beetle outbreaks varies with host tree diameter, density, and other structural characteristics, influencing subcanopy conditions and tree regeneration.
Kristen A. Pelz +3 more
semanticscholar +1 more source
The effects of stand characteristics on the understory vegetation in Quercus petraea and Q. cerris dominated forests [PDF]
, 2013 The shelterwood system used in Hungary has many effects on the composition and structure of the herb layer. The aim of our study was to identify the main variables that affect the occurence of herbs and seedlings in Turkey oak-sessile oak (Quercus cerris
Barbier S +50 more
core +1 more source
Effects of post-fire logging on forest surface air temperatures in the Siskiyou Mountains, Oregon, USA [PDF]
, 2010 Following stand-replacing wildfire, post-fire (salvage) logging of fire-killed trees is a widely implemented management practice in many forest types. A common hypothesis is that removal of fire-killed trees increases surface temperatures due to loss of ...
Campbell, J.L. +4 more
core +2 more sources
\u27How To\u27 Guide for Synthesizing NERRs Marsh Monitoring Data [PDF]
, 2020 The purpose of this guide is to provide a user-friendly and informative guide on ‘How to’ synthesize salt marsh data from theNational Estuarine Research Reserve System (NERRs).
Burdick, David M
core +1 more source
Site Factors Influence on Herbaceous Understory Diversity in East Texas Pinus palustris savannas [PDF]
, 2018 Longleaf pine (Pinus palustris) savannas were once dominant across the southeastern U.S., including East Texas and parts of western and central Louisiana.
Farrish, Kenneth, PhD +4 more
core +1 more source