Results 91 to 100 of about 1,157,735 (237)

Allometric equations for Sequoia sempervirens in forests of different ages

Forest Ecology and Management, 2019
Abstract Mature second-growth forests dominated by Sequoia sempervirens occupy only two percent of the species’ current distribution yet represent an important benchmark for restoration management. Here we develop new allometric equations for these forests based on 44 trees 23–84 m tall, which can be used to estimate leaf, bark, cambium, sapwood, and
Stephen C. Sillett, Robert Van Pelt, Allyson L. Carroll, Jim Campbell-Spickler, Ethan J. Coonen, Benjamin Iberle   +5 more
openaire   +1 more source

Scaling and ecomorphology of lagomorph body shape and appendicular skeleton

The Anatomical Record, EarlyView.
Abstract Body shape is one of the most prominent features of phenotypic variation. Yet, mammalian body shapes are poorly quantified and the underlying components contributing to its diversity and its relationship to other skeletal components are rarely tested.
Nia Brice, Coby Huizenga, Chris J. Law
wiley   +1 more source

Global Data Compilation Across Climate Gradients Supports the Use of Common Allometric Equations for Three Transatlantic Mangrove Species

Ecology and Evolution
Predicting the distribution, structure, and biomass of mangrove forests is an area of high research interest. Across the Atlantic East Pacific biogeographic region, three species are common and abundant members of local mangrove communities; Rhizophora ...
Charles A. Price, Benjamin Branoff, Karen Cummins, Romain Glèlè Kakaï, Danielle Ogurcak, Monica Papeș, Michael Ross, Kevin R. T. Whelan, Todd A. Schroeder   +8 more
doaj   +1 more source

Common allometric equations for estimating the tree weight of mangroves

Journal of Tropical Ecology, 2005
Inventory data on tree weights of 104 individual trees representing 10 mangrove species were collected from mangrove forests in South-East Asia to establish common allometric equations for the trunk, leaf, above-ground and root weight. We used the measurable tree dimensions, such as dbh (trunk diameter at breast height), DR0.3 (trunk diameter at 30 cm ...
KOMIYAMA, Akira, POUNGPARN, Sasitorn, KATO, Shogo   +2 more
openaire   +2 more sources

Bite force estimates and morphological correlations of jaw muscles in parrots

The Anatomical Record, EarlyView.
Abstract Parrots (Order: Psittaciformes) are renowned for their high bite force (BF) and morphological correlates thereof, including a highly mobile skull and two unique mandibular adductor muscles—m. pseudomasseter and m. ethmomandibularis, with the former being hypothesized to increase force output.
Ana Carolina L. Faillace, Arin Berger, Marcelo Ismar S. Santana, Adam Hartstone‐Rose   +3 more
wiley   +1 more source

The role of density and proportion in allometric equations of Douglas-fir and red alder seedlings [PDF]

Allometric equations are useful tools for predicting tree biomass when direct measurements are impractical. Any factor affecting plant growth can be a significant variable in allometric equations. Density and species proportion are spatial variables that
Cooke, Pamela T.
core   +5 more sources

Allometric biomass equations for shrub and small tree species in subtropical China

Silva Fennica, 2015
Species-specific allometric equations for shrubs and small trees are relatively scarce, thus limiting the precise quantification of aboveground biomass (AGB) in both shrubby vegetation and forests.
Ali, Arshad, Xu, Ming-Shan, Zhao, Yan-Tao, Zhang, Qing-Qing, Zhou, Liu-Li, Yang, Xiao-Dong, Yan, En-Rong   +6 more
doaj   +1 more source

Local variation in age‐related cortical expansion within and between cross‐sections of distal human long bones

The Anatomical Record, EarlyView.
Abstract Cortical bone expansion is an age‐related process where, through endosteal resorption and periosteal apposition, cross‐sectional diameter increases while cortical thickness decreases in long bone diaphyses. Local variation has been observed in this process between cross‐sectional locations, but few studies have examined directional variation ...
Gregory J. Wehrman, Alice F. Gooding, Adam D. Sylvester, Dawnie W. Steadman, Benjamin M. Auerbach   +4 more
wiley   +1 more source

A model designed for estimating biomass and carbon pool stock in over-mature plantations of teak; Tectona grandis [PDF]

Global Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: Teak (Tectona grandis L.f.) plantations are essential for wood production and reducing atmospheric carbon dioxide levels by storing carbon.
C.A. Siregar, B.H. Narendra, I.K. Abywijaya, P. Pratiwi, L. Alhamd, I.W.S. Dharmawan, E.E.W. Hadi, H. Kurniawan   +7 more
doaj   +1 more source

Postnatal craniomandibular growth in Harbor seals (Phoca vitulina vitulina)

The Anatomical Record, EarlyView.
Postnatal ontogeny in Harbor seals (Phoca vitulina vitulina). Cranium and mandible grow rapidly until 5 years of age, followed by a deceleration and finally a stagnation. Abstract As secondarily aquatic carnivores, seals display several phenotypic differences compared to their terrestrial relatives.
Elisabeth Steinbach, Julia Schaar, Christine Böhmer   +2 more
wiley   +1 more source