Results 71 to 80 of about 48,909 (251)

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae) [PDF]

, 2014
Emus (Dromaius novaehollandiae) are exclusively terrestrial, bipedal and cursorial ratites with some similar biomechanical characteristics to humans. Their growth rates are impressive, as their body mass increases eighty-fold from hatching to adulthood ...
Abourachid, Alexander, Alexander, Alexander, Allen, Allen, Bertram, Biewener, Biewener, Brown, Carrier, Carrier, Carrier, Close, Close, Cubo, Daley, Davies, Dial, Dial, Doube, Fuss, Gangl, Gatesy, Gatesy, Gaunt, Gillooly, Goetz, Goonewardene, Haughton, Hemmingsen, Hokkanen, Hutchinson, Hutchinson, Hutchinson, Ker, Ker, Kleiber, LaBarbera, Main, Main, Maloiy, McMahon, Mendez, Miller, Minnaar, Muir, Patak, Patak, Paxton, Paxton, Picasso, Picasso, Picasso, Powell, R Development Core Team, Regnault, Sacks, Schmidt-Nielsen, Shadwick, Smith, Smith, Smith, Smith, Taylor, Thorpe, Vanden Berge, Yoshikawa, Young, Zinoviev   +69 more
core   +6 more sources

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Unraveling urban dynamics: Scaling laws of human mobility across the cityscape divide

Fundamental Research
The scaling laws of human mobility are one of the key theories of human geography. They also have important policy implications for urban-rural integration and regional economic growth.
Hongjian Zhao, Pengjun Zhao, Qiyang Liu, Mengzhu Zhang, Shixiong Jiang   +4 more
doaj   +1 more source

Morphometric analysis of postnatal lung development in the gray short‐tailed opossum (Monodelphis domestica): An ultrastructural study

The Anatomical Record, EarlyView.
Abstract An ultrastructural morphometric analysis of the postnatal development of the lung in the gray short‐tailed opossum (Monodelphis domestica) has been conducted to evaluate the morphofunctional status of this poorly developed marsupial lung immediately following parturition.
Kirsten Ferner
wiley   +1 more source

Temperature affects the early allometric growth pattern of Coreius guichenoti

Global Ecology and Conservation
Coreius guichenoti, an endemic and economically important fish species in the upper Yangtze River, exhibits early growth stages that are highly sensitive to fluctuations in water temperature. Recent cascade dam constructions have altered the hydrological
Zhaoyuan Lu, Miao Xiang, Nian Wei, Mulan Liao, Siqi Chen, Yongjiu Zhu, Xuemei Li, Xingbing Wu, Tingbing Zhu   +8 more
doaj   +1 more source

Length-weight relationships and relative condition factor of fish inhabiting the marine area of the Eastern Mediterranean city, Tripoli-Lebanon

Egyptian Journal of Aquatic Research, 2018
Length-weight relationships (LWRs) and relative condition factor are of great importance in fishery assessment studies since it provide information about the growth of the fish, its general wellbeing, and fitness in a marine habitat.
Nazek Jisr, Ghassan Younes, Carol Sukhn, Mohammad H. El-Dakdouki   +3 more
doaj   +1 more source

Variability and uncertainty in forest biomass estimates from the tree to landscape scale: the role of allometric equations

Carbon Balance and Management, 2020
Background Biomass maps are valuable tools for estimating forest carbon and forest planning. Individual-tree biomass estimates made using allometric equations are the foundation for these maps, yet the potentially-high uncertainty and bias associated ...
Anthony G. Vorster, Paul H. Evangelista, Atticus E. L. Stovall, Seth Ex   +3 more
doaj   +1 more source

Metabolic rate and growth in the temperate bivalve Mercenaria mercenaria at a biogeographic limit, from the English Channel

, 2010
Metabolism and growth rate of the hard clam, Mercenaria mercenaria, were investigated in a population invasive to Southampton Water, southern England. An individual metabolic model expressed as a function of soft tissue dry mass was fitted to data of 18 ...
Alastair Brown, Bayne, Eno, Jones, Landry, Loosanoff, McHugh, Olaf Heilmayer, Sven Thatje   +8 more
core   +1 more source

Mathematical modelling in animal nutrition: a centenary review [PDF]

, 2008
A centenary review presents an opportunity to ponder over the processes of concept development and give thought to future directions. The current review aims to ascertain the ontogeny of current concepts, underline the connection between ideas and people
A. DUMAS, Armsby, Atwater, Baldwin, Baldwin, Beever, Bergman, Black, Black, Blaxter, Blaxter, Blaxter, Brody, Brody, Bureau, Curnow, Davidson, de Lange, Dent, Dijkstra, Ewing, Feller, Forbes, Forbes, Garfinkel, Garrett, Gayon, Headley, Henneberg, Hill, Hubbell, Hungate, J. DIJKSTRA, J. FRANCE, Johnson, Jull, Kellner, Kellner, Kevles, Kleiber, Kleiber, Koehler, Kriss, Kronfeld, Kyriazakis, Lehmann, Lerner, Lotka, Maynard, Maynard, McCollum, McCollum, Mercer, Michaelis, Mignon-Grasteau, Mitchell, Mitchell, Mitchell, Mitscherlich-Königsberg, Monod, Morris, Moulton, Murray, Nelson, Osborne, Osborne, Oslage, Pearl, Pirt, Porter, Ragsdale, Ratkowski, Ratkowski, Rice, Riley, Ritzman, Robertson, Robertson, Rubner, Schiemann, Schinckel, Schneider, Seber, Steele, Thaer, Thomas, Thorbek, Thornley, Tyler, Vande Wiele, Verhulst, Waters, Wenk, Weymouth, Wolff, Wolff   +95 more
core   +2 more sources