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90 results for “old-growth”
Fig. 2 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 2. (A) Phellopsis obcordata, dorsal habitus. (B) Fomitopsis ochracea, newly recorded host. (C) Records of P. obcordata and Fomitopsis spp. within Great Smoky Mountains National Park with historic land uses. Outlined areas on the map indicate areas searched during this study in 2019 and 2021. All records outside and some records inside of the areas searched are from iNaturalist and previous literature.
Fig. 1 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 1. Map of the southern Appalachian Mountains in the southeastern United States, showing collecting areas within National Forests and Great Smoky Mountains National Park (GSMNP). Inset shows the region within the United States.
Fig. 5 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 5. Probability of occurrence within Great Smoky Mountains National Park of (A) Phellopsis obcordata based on distance from the nearest undisturbed forest (0 indicates inside undisturbed areas), and (B) Megalodacne heros based on elevation.
Fig. 4 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 4. Boxplots of (A) elevation, (B) tree diameter, and (C) basal area among sampled historic disturbance classes in Great Smoky Mountains National Park.
Fig. 3 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 3. (A) Megalodacne heros, dorsal habitus. (B) Ganoderma tsugae. (C) Records of M. heros and host Ganoderma spp. within Great Smoky Mountains National Park with historic land uses. Outlined areas on the map indicate areas searched during this study in 2019 and 2021.All records outside and some records inside of the areas searched are from iNaturalist.
Beech buffers: microclimate regulation in temperate old-growth forests, surroundings and forest edge
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Dataset to paper "The effects of solar radiation on daily and seasonal stem increment of canopy trees in European temperate old-growth forests."
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Annual mortality and growth index for 17 tree species across entire size classes in the Ogawa Forest Reserve, an old-growth deciduous forest, central Japan
<p><span>We estimated demographic parameters across entire size classes for 17 tree species (<i>Betula</i>, <i>Carpinus</i>, <i>Fagus</i>, <i>Quercus</i>, <i>Castanea</i>, <i>Acer</i>, <i>Cerasus</i>, <i>Swida</i>, <i>Kalopanax</i>, and <i>Styrax</i>) using a dataset over 18 years obtained from the Ogawa Forest Reserve, an old-growth deciduous forest located in the southern part of the Abukuma Mountains, Ibaraki Prefecture, central Japan (36° 56', 140° 35', 610 m in elevation)<sup> 1)</sup>. Size classes were represented by 12 categories defined based on age, height, and diameter at breast height (DBH): new seedling (age < 1), aged seedling (age ≥ 1 and height < 30 cm), sapling (height 30 cm to 2 m), juvenile (height ≥ 2 m and DBH < 5 cm), D10 (DBH 5–15 cm, D10 was denoted by the midpoint of this range; later classes were similarly defined), D20, D30, D40, D50, D60, D70, and D80 (including trees with DBH ≥ 85 cm). We derived the annual mortality and growth index (i.e., the probability of a living tree transitioning to the next size class) for each species and size class using estimates of transition probabilities between size classes (i.e., stasis, progression and retrogression)<sup>2)</sup>. The stem densities of these 17 species in each size class are also presented<sup>3)</sup>.</span></p> <p><span>File list</span></p> <p><span>1) dataset - number of trees stagnating, progressing and retrogressing by size class.csv</span></p> <p><span>2) estimates - mean and 95 percent credible intervals of demographic parameters by species and size class.csv</span></p> <p><span>3) estimates - mean density of stems by species and size class.csv</span></p>
Figure 1 in Composition and habitat use of small mammals in old-growth mountain forests
Figure 1. Location of the study area in the Aigüestortes i Estany de Sant Maurici National Park (in dark grey) and its peripheral area (in light grey), indicating the UTM (Universal Transverse Mercator) coordinates. White squares, Abies alba plots; black squares, Pinus uncinata plots. Contour lines represent different altitude levels. Darker areas within the National Park boundaries correspond to lakes.
Nonlinear responses of ecosystem carbon fluxes to nitrogen deposition in an old-growth boreal forest
<p>Nitrogen (N) deposition is known to increase carbon (C) sequestration in N-limited boreal forests. However, the long-term effects of N deposition on ecosystem carbon fluxes have been rarely investigated in old-growth boreal forests. Here we show that decade-long experimental N additions significantly stimulated net primary production (NPP) but the effect decreased with increasing N loads. The effect on soil heterotrophic respiration (Rh) shifted from a stimulation at low-level N additions to an inhibition at higher levels of N additions. Consequently, low-level N additions resulted in a neutral effect on net ecosystem productivity (NEP), due to a comparable stimulating effect on NPP and Rh, while NEP was increased by high-level N additions. Moreover, we found nonlinear temporal responses of NPP, Rh and NEP to low-level N additions. Our findings imply that actual N deposition in boreal forests likely exerts a minor contribution to their soil C storage.</p>
Fig. 4 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 4. Boxplots of (A) elevatioc, (B) tree diameter, acd (C) basal area amocg sampled historic distkrbacce classes ic Great Smoky Mokctaics Natiocal Park.
Fig. 1 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 1. Map of the soktherc Appalachiac Mokctaics ic the soktheasterc Ucited States, showicg collecticg areas withic Natiocal Forests acd Great Smoky Mokctaics Natiocal Park (GSMNP). Icset shows the regioc withic the Ucited States.
Fig. 2 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 2. (A) Phellopsis obcordata, dorsal habitks. (B) Fomitopsis ochracea, cewly recorded host. (C) Records of P. obcordata acd Fomitopsis spp. withic Great Smoky Mokctaics Natiocal Park with historic lacd kses. Oktliced areas oc the map icdicate areas searched dkricg this stkdy ic 2019 acd 2021. All records oktside acd some records icside of the areas searched are from iNatkralist acd previoks literatkre.
Fig. 5 in Assessing the Old-Growth Dependency of Two Saproxylic Beetle Species in the Southern Appalachian Mountains
Fig. 5. Probability of occkrrecce withic Great Smoky Mokctaics Natiocal Park of (A) Phellopsis obcordata based oc distacce from the cearest kcdistkrbed forest (0 icdicates icside kcdistkrbed areas), acd (B) Megalodacne heros based oc elevatioc.
Data from: Topsoil removal through scarification improves natural regeneration in high-graded Nothofagus old-growth forests
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Data from: Species-area curve and distance-decay relationship indicate habitat thresholds of ectomycorrhizal fungi in an old-growth Pseudotsuga menziesii landscape
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Data from: Fine-root exploitation strategies differ in tropical old-growth and logged-over forests in Ghana
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Nonlinear responses of ecosystem carbon fluxes to nitrogen deposition in an old-growth boreal forest
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Annual mortality and growth index for 17 tree species across entire size classes in the Ogawa Forest Reserve, an old-growth deciduous forest, central Japan
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Soil organic carbon accumulation modes between pioneer and old-growth forest ecosystems
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