Fish Prey, Food Habits, and Interspecific Relationships

2022 ◽  
pp. 143-164
Author(s):  
Xinjun Chen ◽  
Bilin Liu ◽  
Yunkai Li
2001 ◽  
Vol 79 (10) ◽  
pp. 1794-1800 ◽  
Author(s):  
Jennifer CC Neale ◽  
Benjamin N Sacks

To investigate interspecific relationships between gray foxes (Urocyon cinereoargenteus) and sympatric coyotes (Canis latrans) and bobcats (Lynx rufus), we quantified occurrence of food items in carnivore scats and used relative abundances of scats on transects to assess space use. Dietary-overlap indices between the two canid species were high during summer and fall ([Formula: see text] = 0.89) when fruits were prevalent in scats of both species, and were lower during winter and spring ([Formula: see text] = 0.70) when fruits were less available. Foxes differed most from coyotes in their relatively less frequent ungulate consumption. Fox–bobcat dietary-overlap indices were relatively low in summer and fall ([Formula: see text] = 0.37) and greater in winter and spring ([Formula: see text] = 0.74). Foxes differed most from bobcats in their more frequent consumption of fruits and less frequent consumption of lagomorphs. Abundance of fox scats was positively correlated with abundance of coyote scats during both winter–spring (r = 0.52, p = 0.02) and summer–fall (r = 0.75, p < 0.001) and with abundance of bobcat scats during winter–spring (r = 0.59, p < 0.01) and summer–fall (r = 0.22, p > 0.10). Thus, despite similarities in diet, we found no evidence that gray foxes avoided these larger predators in space.


2003 ◽  
Vol 73 (6) ◽  
pp. 439-445 ◽  
Author(s):  
Navia ◽  
Ortega ◽  
Requejo ◽  
Perea ◽  
López-Sobaler ◽  
...  

A study was conducted on the influence of maternal education level on food consumption, energy and nutrient intake, and dietary adequacy in 110 pre-school children from Madrid, Spain. With increasing maternal education, children consumed more sugar (p < 0.05), fruit (p < 0.05), and fish (p < 0.05). Snacking was more frequent with decreasing maternal education (p < 0.05). Though statistical significance was not reached, the consumption of pre-cooked foods was greater among children of mothers educated to a higher level, a phenomenon probably related to the work situation of these women. With respect to dietary composition, no significant differences were found between groups for macronutrient, fiber and energy intakes, except for energy supplied by polyunsaturated fatty acids (PUFA), which was greater in the children of less educated women (p < 0.01). This is probably due to their greater consumption of sunflower seed oil. The diets of children belonging to well-educated mothers came closer to meeting the recommended intakes for folate, vitamin C, and iodine. It would seem that maternal educational level influences the food habits of children. Mothers with less education may require special advice in this area.


Author(s):  
Florian Javelle ◽  
Descartes Li ◽  
Philipp Zimmer ◽  
Sheri L. Johnson

Abstract. Emotion-related impulsivity, defined as the tendency to say or do things that one later regret during periods of heightened emotion, has been tied to a broad range of psychopathologies. Previous work has suggested that emotion-related impulsivity is tied to an impaired function of the serotonergic system. Central serotonin synthesis relies on the intake of the essential amino acid, tryptophan and its ability to pass through the blood brain barrier. Objective: The aim of this study was to determine the association between emotion-related impulsivity and tryptophan intake. Methods: Undergraduate participants (N = 25, 16 women, 9 men) completed a self-rated measure of impulsivity (Three Factor Impulsivity Index, TFI) and daily logs of their food intake and exercise. These data were coded using the software NutriNote to evaluate intakes of tryptophan, large neutral amino acids, vitamins B6/B12, and exercise. Results: Correlational analyses indicated that higher tryptophan intake was associated with significantly lower scores on two out of three subscales of the TFI, Pervasive Influence of Feelings scores r =  –.502, p < . 010, and (lack-of) Follow-Through scores, r =  –.407, p < . 050. Conclusion: Findings provide further evidence that emotion-related impulsivity is correlated to serotonergic indices, even when considering only food habits. It also suggests the need for more research on whether tryptophan supplements might be beneficial for impulsive persons suffering from a psychological disorder.


2011 ◽  
Author(s):  
Caroline M. DeLong ◽  
Irene Kannyo ◽  
Kelly J. Benoit-Bird ◽  
Whitlow W. L. Au
Keyword(s):  

1990 ◽  
Author(s):  
Alan R. Kristal ◽  
Ann L. Shattuck ◽  
Holly J. Henry
Keyword(s):  

2018 ◽  
Vol 7 (1) ◽  
pp. 157-164
Author(s):  
Rubiane Inara Wagner ◽  
Patrícia Molz ◽  
Camila Schreiner Pereira

O objetivo deste estudo foi comparar a frequência do consumo de alimentos processados e ultraprocessados e verificar a associação entre estado nutricional por adolescentes do ensino público e privado do município de Arroio do Tigre, RS. Trata-se de um estudo transversal realizado com adolescentes, com idade entre 10 e 15 anos, de uma escola pública e uma privada de Arroio do Tigre, RS. O estado nutricional foi avaliado pelo índice de massa corporal. Aplicou-se um questionário de frequência alimentar contendo alimentos processados e ultraprocessados. A amostra foi composta por 64 adolescentes com idade média de 12,03±1,15 anos, sendo 53,1% da escola pública. A maioria dos adolescentes encontravam-se eutróficos (p=0,343), e quando comparado com o consumo de alimentos processados e ultraprocessados, a maioria dos escolares eutróficos relataram maior frequência no consumo de balas e chicletes (50,0%) e barra de cereais (51,0%), de 1 a 3 vezes por semana (p=0,004; p=0,029, respectivamente). Houve também uma maior frequência de consumo de alimentos processados e ultraprocessados como pizza (73,5%; p0,001), refrigerante (58,8%; p=0,036) e biscoito recheado (58,8%; p=0,008) entre 1 a 3 vezes por semana na escola pública em comparação a escola privada. O consumo de suco de pacote (p=0,013) foi relatado não ser consumido pela maioria dos alunos da escola particular em comparação a escola pública. Os dados encontrados evidenciam um consumo expressivo de alimentos processados e ultraprocessados pelos adolescentes de ambas as escolas, destacando alimentos com alto teor de açúcar e sódio.Palavras-chave: Hábitos alimentares. Adolescentes. Alimentos industrializados. ABSTRACT: The objective of this study was to compare the frequency of consumption of processed and ultraprocessed foods and to verify the association between nutritional status by adolescents from public and private schools in the municipality of Arroio do Tigre, RS. This was a cross-sectional study conducted with adolescents, aged 10 to 15 years, from a public school and a private school in Arroio do Tigre, RS. Nutritional status was assessed by body mass index. A food frequency questionnaire containing processed and ultraprocessed foods was applied. The sample consisted of 64 adolescents with a mean age of 12.03±1.15 years, 53.1% of the public school. Most of the adolescents were eutrophic (p=0.343), and when compared to the consumption of processed and ultraprocessed foods, most eutrophic schoolchildren reported a higher frequency of bullets and chewing gum (50.0%) and cereal bars (51.0%), 1 to 3 times per week (p=0.004, p=0.029, respectively). There was also a higher frequency of consumption of processed and ultraprocessed foods such as pizza (73.5%, p0.001), refrigerant (58.8%, p=0.036) and stuffed biscuit (58.8%, p=0.008) between 1 to 3 times a week in public school compared to private school. Consumption of packet juice (p=0.013) was reported not to be consumed by the majority of private school students compared to public school. Conclusion: The data found evidenced an expressive consumption of processed and ultraprocessed foods by the adolescents of both schools, highlighting foods with high sugar and sodium content.Keywords: Food Habits. Adolescents. Industrialized Foods.


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