Marker-assisted determination of the relationship between body size and reproductive success and consequences for evaluation of adaptive life histories

Numbers of anadromous fish returning to freshwater ecosystems have declined precipitously across much of western North America, reducing a potentially important resource subsidy for juvenile salmonids. We added carcasses to three sections of a Snake River tributary and assessed juvenile Chinook salmon (Oncorhynchus tshawytcha) and steelhead trout (Oncorhynchus mykiss) growth, body condition, size, and diet responses in summer and early fall. Juvenile salmonids consumed an abundance of eggs and carcass tissue, which increased energy rations. Within 3 weeks of carcass additions, juvenile Chinook and steelhead growth rates were 1.1–5 and 6–23 times greater in treatment reaches relative to control reaches, respectively. We used long-term tagging and detection data from this system to assess the relationship between juvenile Chinook size and emigration survival for two different juvenile life histories. The increased growth rates and body size in response to carcass additions, coupled with a positive relationship between body size and survival, suggest that juvenile salmonid rearing productivity and emigration survival may be limited by depressed returns of anadromous fishes in this system and potentially other tributaries of the Columbia Basin.

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Plasticity in probabilistic reaction norms for maturation in a salmonid fish

Biology Letters ◽

10.1098/rsbl.2009.0290 ◽

2009 ◽

Vol 5 (5) ◽

pp. 628-631 ◽

Cited By ~ 44

Author(s):

Kentaro Morita ◽

Jun-ichi Tsuboi ◽

Toru Nagasawa

Keyword(s):

Genetic Variation ◽

Body Size ◽

Reproductive Success ◽

Reaction Norm ◽

Reaction Norms ◽

Transplant Experiment ◽

Size At Maturity ◽

Threshold Size ◽

Precocious Males ◽

The Relationship

The relationship between body size and the probability of maturing, often referred to as the probabilistic maturation reaction norm (PMRN), has been increasingly used to infer genetic variation in maturation schedule. Despite this trend, few studies have directly evaluated plasticity in the PMRN. A transplant experiment using white-spotted charr demonstrated that the PMRN for precocious males exhibited plasticity. A smaller threshold size at maturity occurred in charr inhabiting narrow streams where more refuges are probably available for small charr, which in turn might enhance the reproductive success of sneaker precocious males. Our findings suggested that plastic effects should clearly be included in investigations of variation in PMRNs.

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Relationship between body size and population growth rate in two opportunistic polychaetes

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315402005647 ◽

2002 ◽

Vol 82 (3) ◽

pp. 403-408 ◽

Cited By ~ 6

Author(s):

D. Prevedelli ◽

R. Simonini

Keyword(s):

Growth Rate ◽

Body Size ◽

Sex Ratio ◽

Population Growth ◽

Growth Rates ◽

Life Histories ◽

Population Growth Rate ◽

Population Growth Rates ◽

The Relationship ◽

Dinophilus Gyrociliatus

The relationship between body size and population growth rate λ has been studied in two species of opportunistic polychaetes, Dinophilus gyrociliatus and Ophryotrocha labronica, which colonize harbour environments. These species exhibit a semi-continuous iteroparous reproductive strategy, are phylogenetically closely-related but differ in body size and in some aspects of their sexuality. Ophryotrocha labronica is about 4 mm in body length, displays only slight sexual dimorphism and its sex ratio is biased towards the female sex in the ratio 2:1. Dinophilus gyrociliatus is about 1 mm in length, the males are extremely small and the sex ratio is strongly biased (3:1) in favour of the females. In spite of the considerable differences in all traits of their life histories and in many demographic parameters, the growth rates of the two populations are very similar. The analyses carried out have shown that the rapid attainment of sexual maturity of D. gyrociliatus gives it an advantage that offsets the greater fecundity of O. labronica. It is very likely that the reproductive peculiarities of D. gyrociliatus help to raise the population growth rates. The ‘saving’ on the male sex achieved both by the shift of the sex ratio in favour of the females and by the reduction in the males' body size would appear to enable D. gyrociliatus to grow at the same rate as O. labronica, a larger and more fecund species.

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Body size and extinction risk in Brazilian carnivores

Biota Neotropica ◽

10.1590/s1676-06032009000200004 ◽

2009 ◽

Vol 9 (2) ◽

pp. 45-49 ◽

Cited By ~ 7

Author(s):

German Forero-Medina ◽

Marcus Vinícius Vieira ◽

Carlos Eduardo de Viveiros Grelle ◽

Paulo Jose Almeida

Keyword(s):

Body Size ◽

Litter Size ◽

Life Histories ◽

Linear Models ◽

Extinction Risk ◽

Habitat Destruction ◽

Phylogenetically Independent Contrasts ◽

Relationship Of ◽

The Relationship ◽

Natural Reserves

Because extinctions are not random across taxa, it is important for conservation biologists to identify the traits that make some species more vulnerable. Factors associated with vulnerability include small geographical ranges, low densities, high trophic level, "slow" life histories, body size, and tolerance to altered habitats. In this study we examined the relationship of body size, reproductive output, longevity, and extinction risk for carnivores occurring in Brazil. We used generalized linear models analyses on phylogenetically independent contrasts to test the effect of body size alone, and the combined effect of body size, litter size and longevity on extinction risk. Body size appeared in the two best models according to the selection criteria (AIC), and it was the most plausible bionomic variable associated with extinction risk. Litter size and longevity, bionomic traits previously associated with threat risk of Brazilian carnivores, were implausible. The higher extinction risk for larger species could result from body size influencing vulnerability to different human activities, such as killing, habitat destruction and fragmentation, and the small size of natural reserves.

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Correlations of anthropo-somatotypological indicators with indicators of personality traits of practically healthy Ukrainian women

Biomedical and Biosocial Anthropology ◽

10.31393/bba37-2019-04 ◽

2019 ◽

pp. 22-31

Author(s):

I. I. Andriievskyi ◽

О. А. Serebrennikova ◽

I. V. Gunas ◽

O. V. Cherkasova ◽

V. I. Kyrychenko

Keyword(s):

Body Weight ◽

Body Size ◽

Personality Traits ◽

Data Bank ◽

The Body ◽

Relative Percentage ◽

Reactive Anxiety ◽

Medical University ◽

The Relationship

The purpose of the work is to determine and analyze the peculiarities of correlations between the constitutional parameters of the body and personality indicators of practically healthy Ukrainian women of the first mature age. Primary anthropo-somatotypological (anthropometric examination according to the scheme of V. V. Bunak, determination of somatotype – according to the mathematical scheme of J. Carter and B. Heath; determination of fat, bone and muscle components of body weight – according to the formulas of J. Matiegka, determination of muscular components of body weight – according to the method of the American Institute of Nutrition) and indicators of personality (leading typological characteristics of temperament according to Eysenck, psychodynamic features of personality according to Spielberger, indicators of severity and features of accentuated personality traits according to Shmishek, indicators of subjective control according to Rotter) of 101 practically healthy Ukrainian women of the first mature age were selected from the data bank of materials of the research center of National Pirogov Memorial Medical University, Vinnytsya. The analysis of correlations between anthropo-somatotypological indicators and indicators of personality traits was performed in the licensed package "Statistica 6.1" using the statistical method of Pearson. Between anthropo-somatotypological indicators and indicators of personality traits of practically healthy Ukrainian women, mostly single weak-strength feedback and direct reliable correlations have been established. In most cases, the feedback is established with the leading typological characteristics of temperament according to Eysenck, psychodynamic features of personality according to Spielberger and indicators of severity and features of accentuated personality traits according to Shmishek, and direct – with indicators of subjective control according to Rotter. The multiple nature of the relationship only between the rate of accentuation of the character of the exalted type according to Shmishek with most indicators of the width of the distal epiphyses of the limbs and the size of the pelvis; between the level of subjective control in the field of failures according to Rotter with half the longitudinal sizes of the body; between the indicator of situational (reactive) anxiety according to Spielberger, or the indicator of accentuation of the character of the cyclothymic type according to Shmishek with all the girths of the chest. Quantitative analysis of significant correlations between anthropo-somatotypological indicators and indicators of personality traits of practically healthy Ukrainian women revealed the largest relative percentage of reliable correlations of anthropo-somatotypological indicators. Namely, with the leading typological characteristics of temperament according to Eysenck, the largest relative percentage of reliable relationships was established with transverse body size and somatotypological indicators; with psychodynamic features of the personality according to Spielberger – with somatotypological indicators; with indicators of severity and features of accentuated personality traits according to Shmishek – with longitudinal body dimensions, cephalometric indicators and width of distal epiphyses of extremities; with indicators of the level of subjective control according to Rotter – with longitudinal body size and somatotypological indicators.

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Determination of Standard Reference Cardiothoracic Ratio and the Relationship with Body Parameters as A Patients Health Indicator for Clinical Application

International Journal of Scientific Research in Science Engineering and Technology ◽

10.32628/ijsrset1196617 ◽

2019 ◽

pp. 318-326

Author(s):

Issahaku Shirazu ◽

Theophilus. A. Sackey ◽

Elvis K. Tiburu

Keyword(s):

Body Size ◽

Clinical Application ◽

The Body ◽

Transverse Diameter ◽

Cardiothoracic Ratio ◽

Body Parameter ◽

Heart Size ◽

Body Parameters ◽

The Relationship

The heart is a muscular organ about the size of a closed fist that function by pumping blood throughout the body making the body size extremely important in its performance. Hence, the work done by the heart depend largely on the total body size of the individual, measurements of which depends on the weight and height to estimate BMI, BSA and BSI. The aim of the study was to establish Ghanaian based standard reference values of cardiothoracic ratio and determine the relationship with body parameters for clinical application. The maximum transverse diameter of the heart was obtained by adding the widest distance of the right heart border from the midline and the left heart border to the midline (cardiac diameter). This value was then divided by the maximum transverse diameter of the thorax (the thoracic diameter) to give the cardiothoracic ratio (CTR). Which is described as a ratio of the cardiac width as against thoracic width. The measured CTR was approximately 15: 33 (cm) and is therefore within the normal limit of 50%. This is because a CTR of greater than fifty percent is abnormal, in terms of Posterior - Anterior (PA) or an Anterior - Posterior (AP) view. In addition, the height and weight were measured to estimate the BMI, BSA and BSI and the relationship of these parameters with the measured cardiothoracic ratio. The result shows that BSI better correlate with the cardiothoracic ratio than any other body parameter with 92.53% accuracy rate. The determination of the CTR which represent the size of the normal heart is of the greatest importance to cardiologists. This is because the heart size enlargement is better assess by determining the ratio of size of the heart (cardiac diameter) as against the size of the chest wall (the thoracic diameter). This is use for initial assessment of heart condition by cardiologist, with a standard adult heart having a CTR value of 0.5. The study shows that a normal size is so variable and depends so greatly on the sex, age and body parameters of the study population. In conclusion, the study will serve as basis of the relationship between body parameter and the CTR. It also established that a deviation of heart size with BSI may reveal an underlying pathologic condition, and called for further studies to be conducted for clinical decision.

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Thromboplastin Related Differences in the Determination of International Normalised Ratio: A Cause for Concern?

Thrombosis and Haemostasis ◽

10.1055/s-0038-1648883 ◽

1994 ◽

Vol 72 (03) ◽

pp. 426-429 ◽

Cited By ~ 31

Author(s):

S Kitchen ◽

I D Walker ◽

T A L Woods ◽

F E Preston

Keyword(s):

Patient Management ◽

External Quality Assessment ◽

Oral Anticoagulant Therapy ◽

Warfarin Dosage ◽

External Quality ◽

External Quality Assessment Scheme ◽

International Normalised Ratio ◽

The Uk ◽

The Relationship

SummaryWhen the International Normalised Ratio (INR) is used for control of oral anticoagulant therapy the same result should be obtained irrespective of the laboratory reagent used. However, in the UK National External Quality Assessment Scheme (NEQAS) for Blood Coagulation INRs determined using different reagents have been significantly different.For 18 NEQAS samples Manchester Reagent (MR) was associated with significantly lower INRs than those obtained using Diagen Activated (DA, p = 0.0004) or Instrumentation Laboratory PT-Fib HS (IL, p = 0.0001). Mean INRs for this group were 3.15, 3.61, and 3.65 for MR, DA, and IL respectively. For 61 fresh samples from warfarin-ised patients with INRs of greater than 3.0 the relationship between thromboplastins in respect of INR was similar to that observed for NEQAS data. Thus INRs obtained with MR were significantly lower than with DA or IL (p <0.0001). Mean INRs for this group were 4.01, 4.40, and 4.59 for MR, DA, and IL respectively.We conclude that the differences between INRs measured with the thromboplastins studied here are sufficiently great to influence patient management through warfarin dosage schedules, particularly in the upper therapeutic range of INR. There is clearly a need to address the issues responsible for the observed discrepancies.

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Modern determinants of endometrium hyperplastic processes pathogenesis

HEALTH OF WOMAN ◽

10.15574/hw.2016.111.137 ◽

2016 ◽

pp. 137-142

Author(s):

V.O. Benyuk ◽

◽

V.M. Goncharenko ◽

T.R. Nykoniuk ◽

◽

...

Keyword(s):

Conservative Therapy ◽

Solid Phase ◽

Research Direction ◽

Immunohistochemical Method ◽

Results Of Treatment ◽

Treatment And Prevention ◽

Receptor Phenotype ◽

The Relationship ◽

Endometrial Proliferation

The objective: to еxplore the relationship between the activity of endometrial proliferation and the state of the local immune response in the uterus in the conditions berprestasi process. Patients and methods. Examined 228 women of reproductive and perimenopausal age with endometrial pathology using ultrasound and then performing hysteroresectoscopy. Determination of the concentrations of the cytokines IL-1, IL-2, IL-6 and TNF was performed by solid phase ELISA. Results. Found a trend that confirms the loss of sensitivity to hormones at the stage of malignancy of the endometrium and can be used as diagnostic determinants in determining the nature of intrauterine pathology and criterion of the effectiveness of conservative therapy. Conclusion. Improving etiopatogenetice approach to the therapy of hyperplastic proce.sses of endometrium with determination of receptor phenotype of the endometrium is a research direction in modern gynecology, which will help to improve the results of treatment and prevention of intrauterine pathology. Key words: endometrial hyperplasia,the receptors for progesterone and estrogen, immunohistochemical method.

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Calculating the aerodynamics of vertical axis wind turbines

Vietnam Journal of Mechanics ◽

10.15625/0866-7136/34/3/2358 ◽

2012 ◽

Vol 34 (3) ◽

pp. 169-184 ◽

Cited By ~ 1

Author(s):

Hoang Thi Bich Ngoc

Keyword(s):

Wind Turbine ◽

Incidence Angle ◽

Vertical Axis ◽

Rotor Blades ◽

Vertical Axis Wind Turbine ◽

Horizontal Axis Wind Turbine ◽

Velocity Triangle ◽

Relationship Of ◽

The Relationship

Vertical axis wind turbine technology has been applied last years, very long after horizontal axis wind turbine technology. Aerodynamic problems of vertical axis wind machines are discussible. An important problem is the determination of the incidence law in the interaction between wind and rotor blades. The focus of the work is to establish equations of the incidence depending on the blade azimuth, and to solve them. From these results, aerodynamic torques and power can be calculated. The incidence angle is a parameter of velocity triangle, and both the factors depend not only on the blade azimuth but also on the ratio of rotational speed and horizontal speed. The built computational program allows theoretically selecting the relationship of geometric parameters of wind turbine in accordance with requirements on power, wind speed and installation conditions.

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Tire Treadwear — A Comprehensive Evaluation of the Factors: Generic Type, Aspect Ratio, Tread Pattern, and Tread Composition Part I: Introduction and Details on the Organization of the Program

Tire Science and Technology ◽

10.2346/1.2148774 ◽

1986 ◽

Vol 14 (4) ◽

pp. 201-218 ◽

Cited By ~ 3

Author(s):

A. G. Veith

Keyword(s):

Aspect Ratio ◽

Comprehensive Evaluation ◽

Test Method ◽

Interactive Effects ◽

Data Analyses ◽

Main Effect ◽

Systematic Determination ◽

Relationship Of ◽

The Relationship

Abstract This four-part series of papers addresses the problem of systematic determination of the influence of several tire factors on tire treadwear. Both the main effect of each factor and some of their interactive effects are included. The program was also structured to evaluate the influence of some external-to-tire conditions on the relationship of tire factors to treadwear. Part I describes the experimental design used to evaluate the effects on treadwear of generic tire type, aspect ratio, tread pattern (groove or void level), type of pattern (straight rib or block), and tread compound. Construction procedures and precautions used to obtain a valid and functional test method are included. Two guiding principles to be used in the data analyses of Parts II and III are discussed. These are the fractional groove and void concept, to characterize tread pattern geometry, and a demonstration of the equivalence of wear rate for identical compounds on whole tread or multi-section tread tires.

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