Results 51 to 60 of about 13,016 (292)

Applying allometric scaling to predator-prey systems [PDF]

, 2019
In population dynamics, mathematical models often contain too many parameters to be easily testable. A way to reliably estimate parameters for a broad range of systems would help us obtain clearer predictions from theory.
Eilersen, Andreas, Sneppen, Kim
core   +1 more source

Testing allometric scaling relationships in plant roots

Forest Ecosystems, 2020
Background Metabolic scaling theory predicts that plant productivity and biomass are both size-dependent. However, this theory has not yet been tested in plant roots.
Qiang Deng, Zhiyou Yuan, Xinrong Shi, T. Ryan Lock, Robert L. Kallenbach   +4 more
doaj   +1 more source

Evaluating allometric scaling models inbiology using hierarchical Bayesian approaches [PDF]

, 2009
Theoretical models for allometric relationships between organismal form and function are typically tested by comparing a single predicted relationship with empirical data.
White, Ethan P., Weitz, J. S., Ogle, K., Kiona Ogle, Ethan P. White, Joshua S. Weitz, Price, C. A., Charles A. Price   +7 more
core   +1 more source

Allometric scaling of plant life history [PDF]

Proceedings of the National Academy of Sciences, 2007
Plant mortality and birth rates are critical components of plant life history affecting the stability of plant populations and the ecosystems they form. Although allometric theory predicts that both plant birth and mortality rates should be size-dependent, this prediction has not yet been tested across plants ranging the full size spectrum.
Marbà, Núria, Agustí, Susana, Duarte, Carlos M.   +2 more
openaire   +3 more sources

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Joint multiple quantitative trait loci mapping for allometries of body compositions and metabolic traits to body weights in broiler

Animal, 2020
In order to map quantitative trait loci (QTLs) for allometries of body compositions and metabolic traits in chicken, we phenotypically characterize the allometric growths of multiple body components and metabolic traits relative to BWs using joint ...
X. Zhou, Y. Zhang, H. Zhang, J. Du, J. Ye, Y. Xu, R. Yang   +6 more
doaj   +1 more source

Allometric Scaling of Uphill Cycling Performance

International Journal of Sports Medicine, 2008
Previous laboratory-based investigations have identified optimal body mass scaling exponents in the range 0.79-0.91 for uphill cycling. The purpose of this investigation was to evaluate whether or not these exponents are also valid in a field setting. A proportional allometric model was used to predict the optimal power-to-mass ratios associated with ...
Jobson, Simon A., Woodside, J., Passfield, L., Nevill, Alan M.   +3 more
openaire   +4 more sources

NFYB Integrates Hormonal Signals into Tissue Allometry by Promoting Protein Biosynthesis

Advanced Science, EarlyView.
In the American cockroach, NFYB acts as a spatiotemporin that translates distinct hormonal cues into tissue‐specific allometry. Juvenile hormone activates NFYB in the early fat body, while 20‐hydroxyecdysone induces it in late wing pads. NFYB then promotes protein biosynthesis via core translational machinery, driving differential growth across the ...
Fangfang Liu, Shiming Zhu, Sishi Xia, Xiaoshuai Zhang, Qin Li, Zhanquan Zeng, Yuqing Liu, Wanyin Liang, Guanyu Zhou, Erxia Du, Suning Liu, Sheng Li   +11 more
wiley   +1 more source

Quantitative assessment of masticatory muscles based on skull muscle attachment areas in Carnivora

The Anatomical Record, EarlyView.
Abstract Masticatory muscles are composed of the temporalis, masseter, and pterygoid muscles in mammals. Each muscle has a different origin on the skull and insertion on the mandible; thus, all masticatory muscles contract in different directions. Collecting in vivo data and directly measuring the masticatory muscles anatomically in various Carnivora ...
Kai Ito, Mugino O. Kubo, Ryo Kodera, Sei‐ichiro Takeda, Hideki Endo   +4 more
wiley   +1 more source

Allometric scaling in biological and ecological systems [PDF]

, 2020
Several biological variables (such as lifespan, metabolic rate, biomass production rate) were observed to depend on body mass through a simple power law, a phenomenon known as allometric scaling.
Marcato, Davide
core