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41 results for “allometric growth”
Murphy Dome: Growth of Hylocomium splendens in birch and black spruce stands to build allometric equations
This data contains measurements taken on segments from Hylocomium splendens cores. It includes dimension, color, weight, and branching pattern of the segments. This data was used to build allometric equations of growth for estimates in the file MD_MossBiomass_2013-2015.xlsx.
Positive allometric growth explains the positive effect of foliar fungal pathogens on plant coexistence
<p><span>The data was collected in the northeastern Qinghai-Tibetan Plateau, Qinghai Province, China (101° 18′ 57</span>″ <span>E, 37° 36′ 50</span>″ <span>N; 3 221 m a.s.l.) in 2019 and 2020, including t</span>he species-specific growth allometry (scaling exponent and intercept) fitted by the allometric equation under each treatment in a population-level experiment, i.e., control, fungicide application, neighbor removal (removal), fungicide application × neighbor removal, and the community-level mean and dispersion of the growth allometry (CWM and FDis of growth scaling exponent and intercept, respectively) weighted by the species cover for each plot in a community-level fungicide application experiment.</p>
Figure 9. Alexandrella martae n in The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species
Figure 9. Alexandrella martae n. sp. Holotype.
Figure 7. Alexandrella martae n in The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species
Figure 7. Alexandrella martae n. sp. Holotype.
Figure 4. Alexandrella mandibulata n in The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species
Figure 4. Alexandrella mandibulata n. sp. Holotype.
Figure 6. Alexandrella mandibulata n in The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species
Figure 6. Alexandrella mandibulata n. sp. Holotype.
Figure 5. Alexandrella mandibulata n in The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species
Figure 5. Alexandrella mandibulata n. sp. Holotype.
Figure 8. Alexandrella martae n in The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species
Figure 8. Alexandrella martae n. sp. Holotype.
Plant size-dependent influence of foliar fungal pathogens promotes diversity through allometric growth
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Allometric trajectories in Picea abies [L.] Karst. trees remain stable despite differences in temperature, phenology and growth along an elevational gradient.
<p>Dataset for the manuscript "Allometric trajectories in Picea abies [L.] Karst. trees remain stable despite differences in temperature, phenology and growth along an elevational gradient.".</p> <p> </p>
Data from: Ecological and evolutionary implications of allometric growth in stomach size of brachyuran crabs
Individual characteristics often scale allometrically with organismal body size and the form of this scaling can be influenced by ecological and evolutionary factors. Examining the specific form of this scaling can therefore yield important insights into organismal ecology and evolution and the ability of organisms to respond to future environmental changes. We examine the allometric scaling of stomach volume with body mass for 17 species of brachyuran crabs. We also examine how this scaling is influenced by dietary strategy, maximum body size, and activity level, all while controlling for phylogenetic relationships between the species. We show that the slope and intercept of the allometric scaling relationships vary across species and are influenced by all three ecological factors examined here, as well as by evolutionary relationships. These results highlight potential divergent strategies in stomach growth taken by different groups of crabs and highlight potential limitations that may be imposed on the ability of this group of organisms to respond to warming trends expected with climate change.
Figure 2 in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 2. Morphology of the vestimentiferan tubeworms Riftia pachyptila. A, drawings of a female in different positions. Body parts measured in this study: obturaculum (ob) comprising the obturacular lobes (obl) and tentacular lamellae (tl), vestimentum (vm), trunk (tr), and opisthosoma (op). B, male individual distinguished by genital grooves (gg). C, the unique finding of Riftia individuals from the Guaymas Basin with split lobes of the ventral posterior vestimental fold (pvm). D–F, individuals with different body proportions: D, juvenile female; E, F, adult females.
Figure 3 in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 3. Summary of our findings on the allometric growth of Riftia pachyptila. A, all body parts, namely obturaculum (ob), vestimentum (vm), trunk (tr), and opisthosoma (op), are shorter in juveniles than in adults; the growth rate is higher for the trunk, and minimal for the opisthosoma (Hypothesis 1). The lines connect the body parts to make these differences even more evident. B, the different conditions between the basalt-hosted, sulphide-rich vents at 9 °EPR and 21 °N EPR, and the highly sedimented, sulphide-poor vents at 27 °N EPR in the Guaymas Basin affect the growth of each body part (Hypothesis 2). The 'fat' morphotype from basalt locations is characterized by the presence of thicker vestimentum (Ø vm), wider tube opening (Ø tb), longer trunk (L tr), and comparatively shorter obturaculum (L ob) and smaller number of tentacular lamellae (N lam). The 'slim' morphotype from the sedimented vents has thinner and shorter trunk, but longer tentacular crowns and higher number of lamellae. This variability might be adaptive and selected to keep the sulphide uptake near to the optimum values for the symbionts.
Figure 1. A in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 1. A, map showing the position of the vents investigated in this study. For details on each sampling stations see Table 1. B, C, the hydrothermal landscapes in the sediment-hosted hydrothermal vents on the Guaymas Basin (27 °N EPR). D–F, basalt-hosted hydrothermal vents in the 21 °N EPR and 9 °N EPR fields. Photo taken using DSRV "Mir" camera.
Figure 1. A in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 1. A, map showing the position of the vents investigated in this study. For details on each sampling stations see Table 1. B, C, the hydrothermal landscapes in the sediment-hosted hydrothermal vents on the Guaymas Basin (27 °N EPR). D–F, basalt-hosted hydrothermal vents in the 21 °N EPR and 9 °N EPR fields. Photo taken using DSRV "Mir" camera.
Data from: Allometric scaling of metabolism, growth, and activity in whole colonies of the seed harvester ant, Pogonomyrmex californicus
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Data from: Ecological and evolutionary implications of allometric growth in stomach size of brachyuran crabs
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Tree basal area growth data for fitting allometric equations to 20 species of NE North America
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Fig. 2 in Allometric growth in the frontals of the Mongolian theropod dinosaur Tarbosaurus bataar
Fig. 2. Measurement parameters used in study, with frontal of Tarbosaurus bataar Maleev, 1955a (MPC-D 107/22), from Bugiin Tsav, Nemegt Formation, Maastrichtian, as an example. Measurement parameters in dorsal (A1), ventral (A2), medial (A3), and lateral (A4) views. 1, width of the nasal process; 2, width of the prefrontal suture; 3, width of the lacrimal socket; 4, length of the frontal between prefrontonasal process and the frontoparietal suture; 5, width of the frontal between medial edge of the orbital slot and the midline; 6, width of the frontal between the most lateral point of the posterior shelf and the midline; 7, length of the dorsotemporal fossa between the middle of the dorsotemporal ridge and the frontoparietal suture; 8, length of the brain between most anterior point of the olfactory bulb fossa and the most posterior point of the cerebral fossa; 9, depth of the frontal at the region that is immediately anterior to the most anterior point of the sagittal crest; 10, length of the postorbital suture between the most anterior point of the anterior part and the most posterior point of the posterior part of the suture; 11, dorsoventral depth of the anterior part of the postorbital suture; 12, dorsoventral depth of the posterior part of the postorbital suture. The same numbers appear in Figs. 3–5 and Table 1.
Figure 3 in Geochemistry drives the allometric growth of the hydrothermal vent tubeworm Riftia pachyptila (Annelida: Siboglinidae)
Figure 3. Summary of our findings on the allometric growth of Riftia pachyptila. A, all body parts, namely obturaculum (ob), vestimentum (vm), trunk (tr), and opisthosoma (op), are shorter in juveniles than in adults; the growth rate is higher for the trunk, and minimal for the opisthosoma (Hypothesis 1). The lines connect the body parts to make these differences even more evident. B, the different conditions between the basalt-hosted, sulphide-rich vents at 9 °EPR and 21 °N EPR, and the highly sedimented, sulphide-poor vents at 27 °N EPR in the Guaymas Basin affect the growth of each body part (Hypothesis 2). The 'fat' morphotype from basalt locations is characterized by the presence of thicker vestimentum (Ø vm), wider tube opening (Ø tb), longer trunk (L tr), and comparatively shorter obturaculum (L ob) and smaller number of tentacular lamellae (N lam). The 'slim' morphotype from the sedimented vents has thinner and shorter trunk, but longer tentacular crowns and higher number of lamellae. This variability might be adaptive and selected to keep the sulphide uptake near to the optimum values for the symbionts.
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