Tarsal Asymmetry, Nutritional Condition, and Survival in Water Boatmen (Callicorixa Vulnerata)

Nosil, Patrik; Reimchen, T. E.

doi:10.1111/j.0014-3820.2001.tb00807.x

Cited by 17 publications

(17 citation statements)

References 66 publications

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“…Their size variation could be related to many factors that could differ consequently from day to day (access to food, local water conditions...). The traits showed generally heterogeneous patterns of FA, that means a low concordance between FA of traits in an individual (NOSIL and REIMCHEN, 2001;PÉLABON et al, 2004). That is in accordance with our result.…”

Section: Morphological and Otolithometrical Characteristicssupporting

confidence: 92%

“…Relationship between asymmetry and parasitism has been studied in several fish models (BERG et al, 1997;BERGSTROM and REIMCHEN, 2000;SASAL and PAMPOULIE, 2000;LOOT et al, 2001;NOSIL and REIMCHEN, 2001). However, results were not systematically convincing because (i) the measured traits could response differently to the presence of the parasites and (ii) parasite species or classes may have different effects on the development of the measured traits.…”

Section: Parasitism and Asymmetrymentioning

confidence: 99%

“…However, results were not obvious especially when the analyses were conducted on several bilateral traits. These confusing results were mainly due to (i) a low concordance between FA of different traits on a same individual (NOSIL and REIMCHEN, 2001;PÉLABON et al, 2004) and (ii) the fact that not all the measured characters were concerned when a relationship between parasitism and asymmetry was found (BERG et al, 1997;ALIBERT et al, 2002). We chose to work on functional bilateral traits such as (i) pectoral fins, used for locomotion and equilibrium, (ii) eyes, used for perception of the environment and indicator of the silvering process (PANKHURST, 1982), (iii) otoliths, used for maintenance of stability and perception of depth pressure, gravity, angular movements and sound waves (BLACKER, 1974).…”

Section: Introductionmentioning

confidence: 99%

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Macroparasite Community and Asymmetry of the Yellow Eel Anguilla Anguilla in Salses-Leucate Lagoon, Southern France

Fazio¹,

Lecomte-Finiger

Bartrina³

et al. 2005

Bull. Fr. Pêche Piscic.

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European eel parasites, in particular invasive species, are suspected to have a strong influence on the population dynamics of their host. The aim of this work was to study the relationship between parasitic fauna of yellow eels caught at Salses-Leucate lagoon and the fluctuating asymmetry (FA) of some functional bilateral traits: pectoral fins, eyes and otoliths. Epidemiological distance matrices and FA distance matrices were calculated on the basis of the Euclidian distances between each pair of eel and were then compared with a Mantel test in order to establish if there was a relationship between parasitism and FA. Our results revealed different morphological characteristics between eels caught at different dates; only otoliths were found asymmetric. The parasite richness was of 10 species, 1 Nematoda, 1 Acanthocephala, 1 Monogenea and 7 Digenea. We failed to find a significant relationship between asymmetry and parasitism, except for parasites found in the stomach. We discussed the results in the light of the eel life cycle, the specificity of parasite -eel systems and the impact of parasites on the host physiology. Key-words:Parasites, eels, fluctuating asymmetry, distance matrices, SalsesLeucate lagoon. COMMUNAUTÉ DES MACROPARASITES ET ASYMÉTRIE CHEZ L'ANGUILLE JAUNE ANGUILLA ANGUILLA DANS LA LAGUNE DE SALSES-LEUCATE, SUD DE LA FRANCE RÉSUMÉLes parasites de l'anguille européenne, en particulier les espèces invasives, sont supposés avoir une grande influence sur la dynamique des populations de leur hôte. Ce travail se propose d'étudier la relation entre la faune parasitaire d'anguilles jaunes prélevées dans la lagune de Salses-Leucate et l'asymétrie fluctuante (FA) de traits bilatéraux fonctionnels : les nageoires pectorales, les yeux et les otolithes. Des matrices de distance épidémiologique ainsi que des matrices de distance de FA ont été calculées sur la base des distances euclidiennes entre anguilles prises deux à deux et ont ensuite été comparées par un test de Mantel afin d'établir s'il existait une relation entre elles. Nos

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Section: Morphological and Otolithometrical Characteristicssupporting

confidence: 92%

Section: Parasitism and Asymmetrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Macroparasite Community and Asymmetry of the Yellow Eel Anguilla Anguilla in Salses-Leucate Lagoon, Southern France

Fazio¹,

Lecomte-Finiger

Bartrina³

et al. 2005

Bull. Fr. Pêche Piscic.

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“…These results are strengthened by the assertion that, fluctuating asymmetry and size of subjects may reflect the instability development caused by stress, which in this study may be due to the amount of food available (Scheiner et al 1991, Clarke 1995, Nosil & Reimchen 2001, Kanegae & Lomônaco 2003.…”

Section: Resultsmentioning

confidence: 52%

Influence of Pollen on the Development of Africanized Bee Colonies (Hymenoptera: Apidae)

et al. 2014

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This study aimed to assess the importance of quality and quantity of pollen on the development of colonies in different seasons. The field experiment was conducted at the Apiary of the Department of Entomology and Acarology of Luiz de Queiroz College of Agriculture, using five beehives of A. mellifera. In order to characterize the quality of pollen, researchers considered measures of total dry mass (g) and the physical-chemical and pollen composition of pollen load and bee bread samples. The development of hives was assessed according to the area covered by pollen, honey, and brood population in the hive (cm²), as well as fluctuating asymmetry of worker bee wings. Spearman's correlation was calculated among the assessed parameters. The value of ether extract of pollen loads was the only component that was related to the development of hives, its value increased as the area occupied by pollen in the hive decreased (-0.3200*), and as the difference of the number of hamuli of right and left hind wings increased (0.3317*). There was a positive relationship between the wealth (0.3150*) and evenness (0.3019*) of pollen composition and the size of brood population inside the hive. It was concluded that the development of the colony, mainly considering the area occupied by brood, is more successful with increased quantity, wealth, and evenness of collected pollen.

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“…In several species, genetic perturbations, such as homozygosity [5], inbreeding [6][7][8], and harmful mutations [9] increase deviations from perfect symmetry and yield high FA in the offspring. Similarly, exposure to chemical pollutants [10][11][12], parasites [13], extreme temperatures [12,14], and food shortages [15] during ontogeny elevates FA.…”

Section: Introductionmentioning

confidence: 99%

Neonatal exposure to short days and low temperatures blunts stress response and yields low fluctuating asymmetry in Siberian hamsters

Benderlioglu

Dow

Pyter

2007

Physiology & Behavior

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Fluctuating asymmetry (FA) refers to small, non-directional deviations from perfect bilateral symmetry in morphological characters. Individuals with low FA presumably either developed in a relatively stable environment and/or were better able to buffer against developmental stressors. The present study investigated the effects of seasonal factors measured by day length and ambient temperature manipulations on the development of bilateral characters and concomitant changes in stress responses. Siberian hamsters were exposed to either long days (16 h of light per day) or short days (8 h of light per day) combined with either standard temperatures (21 ± 2°C) or low temperatures (8 ± 2°C) on the day of birth until weaning. Cortisol concentrations at baseline and following acute restraint stress, and FA values were measured in adulthood. Females reared in winter-like conditions with short day lengths and low temperatures had low FA and low cortisol concentrations following restraint stress compared to other females. Females reared in long day lengths and standard temperatures had the highest rate of increase in cortisol concentrations after restraint among other female groups. No group effects were observed in males regarding day length and temperature manipulations. Baseline and post-restraint cortisol concentrations were higher in females than males for all groups except in animals reared in short day lengths and low temperatures. Our results suggest that winter-like conditions during neonatal period evoke hyposensitivity to stress in adult females and this blunted response to stress is a key factor in achieving ideal growth patterns.

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Tarsal Asymmetry, Nutritional Condition, and Survival in Water Boatmen (Callicorixa Vulnerata)

Cited by 17 publications

References 66 publications

Macroparasite Community and Asymmetry of the Yellow Eel Anguilla Anguilla in Salses-Leucate Lagoon, Southern France

Macroparasite Community and Asymmetry of the Yellow Eel Anguilla Anguilla in Salses-Leucate Lagoon, Southern France

Influence of Pollen on the Development of Africanized Bee Colonies (Hymenoptera: Apidae)

Neonatal exposure to short days and low temperatures blunts stress response and yields low fluctuating asymmetry in Siberian hamsters

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