نتایج جستجو برای: allometric characteristics

تعداد نتایج: 663433  

Journal: :iForest - Biogeosciences and Forestry 2008

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1979
M A Savageau

Allometric morphogenesis is the generation of form or pattern as a result of differential growth according to power-law relationships among the elements of a complex system. This phenomenon has been noted in a variety of fields for many years, in some cases for centuries, and yet it has never been related to the underlying determinants of the systems. By starting with fundamental properties of ...

ژورنال: بوم شناسی آبزیان 2019

Oriental shrimp is conexotis species that widely distributed in northern Iran. This study was conducted to determine population dynamic characteristics of this species based on Its specimen in Golestan dam lake from February to September 2016. Sex ration was unbalanced  in favorite of females (1 : 1.88). Total length and weight ranged from 16.06 to 85.01 mm and 0.04 to 6.75 gr respectively. The...

ژورنال: بوم شناسی آبزیان 2015
Azh, Zahra , Johari, Seyed Ali , Sourinejad, Iman ,

Regarding the importance of studying inland water fishes specially the fish living in qanats, some morphology characteristics, length-weight relationship and growth type of Turkmenian loach Paraschistura sargadensis living in Aran qanat, Baft city were assessed by standard protocols. Range of total length was 25.1-51.38 mm, standard length was 20.65-43.10 mm, fork length was 23.41-46.85 mm, bod...

2012
Lynn S. Kimsey Michael Ohl

A new genus and species, Megalara garuda is described from Sulawesi (Indonesia). The new species is one the largest known members of the crabronid subfamily Larrinae. It has a unique suite of putatively apomorphic morphological characters and is most closely related to the genus Paraliris. We found indications of a significant allometric variation in body size and mandibular length and shape in...

Journal: :Science 1990
B Sinervo R B Huey

Hatchling lizards (Sceloporus occidentalis) from a southern population are large and have high locomotor performance (speed and stamina) relative to hatchlings from northern populations. In order to determine whether differences in performance are an allometric consequence of interpopulation differences in size, yolk was removed from southern eggs, thereby producing miniaturized hatchlings equi...

2013
Sujitha Thomas

Length weight relationship and other allometric relationships were studied for shortneck clam Paphia malabarica. Lengthweight and total weight-flesh weight relationship in males and females were significantly different (p <0.01). The rate of growth in all other relationship studied were not significantly different between sexes. In lengthweight relationship it showed isometric growth and in len...

Journal: :Annals of the Academy of Medicine, Singapore 2008
Yong Hao Pua

Dear Editor, I read with interest the paper by Chia and Aziz.1 Using allometric scaling, the authors adjusted peak oxygen uptake (VO2max) for the confounding influence of body mass and found that mass exponents differed markedly for male and female athletes. I believe the mass exponent generated for the female athletes is the suspect. In the first place, Chia regressed VO2max on body mass (Fig....

A.N. Soomro, H. Suzuki S.I.H. Jafri W.A. Baloch

Present study describes the length-weight (LWR) and length-length (LLR) relationships of a freshwater catfish Eutropiichthyes vacha Hamilton from Indus River, Sindh, Pakistan. A total of 281 specimen of E. vacha were collected from fisherman?s catch from February 2005 to January 2006, are used for this study. The parameters a and b of the length-weight relationship were calculated as W= aLb are...

2016
H. T. Banks J. E. Banks Riccardo Bommarco Alva Curtsdotter Tomas Jonsson A. N. Laubmeier

We present a preliminary attempt at applying an Allometric Trophic Network (ATN) model to single-season population data from agricultural fields. We describe the population dynamics of Rhopalosiphum padi, an aphid pest species, using predator-prey interactions that depend on the relative body masses of species in the food web. Using simple statistical assumptions, we formulate an inverse proble...

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