4.6 Article

Interpreting immunological indices: The importance of taking parasite community into account. An example in blackbirds Turdus merula

期刊

METHODS IN ECOLOGY AND EVOLUTION
卷 6, 期 8, 页码 960-972

出版社

WILEY
DOI: 10.1111/2041-210X.12371

关键词

birds; immune assay; immunocompetence; immunoecology; intestinal parasites; ongoing infection; parasite community

类别

向作者/读者索取更多资源

Despite the intensive use of immune indices in immunoecology, whether to interpret the results of immune indices in terms of actual immune competence (i.e. ability to control and clear parasite infections as indicated by high values of immune indices associated with low parasite loads) or current immune activation (pathogenic infection being associated with high parasite load and high values of immune indices) is still an open question. Most studies to date have produced contrasting results focused on the effect of a single parasite species despite the fact that hosts usually harbour a community of parasites that influences one another's impact on host immune response. We simultaneously assessed blood parasites, intestinal parasites and ectoparasite loads in male blackbirds and compared these measures to several immune indices to investigate how parasites explain the variation around the mean of these immune indices. Parasite loads covaried within hosts. Immune indices better reflected the interacting effects of these parasites than their independent effect. Immune indices may therefore be better indicators of ongoing pathogenic infections than immunocompetence. Furthermore, intestinal parasites explained a significant part of the variance in most immune indices through their interactions with other parasites, suggesting that they have a strong influence in modulating immune function. Taking the parasite community into account in immunoecology studies will certainly help increase our understanding of immune indices.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Entomology

Warming increases tolerance of an insect pest to fungicide exposure through temperature-mediated hormesis

Corentin Iltis, Jerome Moreau, Paul Hubner, Denis Thiery, Philippe Louapre

Summary: Temperature plays a significant role in shaping the response of a major grape insect pest to a copper-based fungicide. The concentration of copper negatively affects larval development and pupal mass, while exhibiting biphasic curvilinear effects on total phenoloxidase activity. Interaction between copper concentration and temperature impacts larval survival and phenoloxidase activity, potentially influencing pest tolerance and performance.

JOURNAL OF PEST SCIENCE (2022)

Article Entomology

Sexual audience affects male's reproduction investment without consequences on reproductive outputs

Philippe Louapre, Karen Muller, Soline Bettencourt-Amarante, Denis Thiery, Jerome Moreau

Summary: This study investigated the plasticity of behavioral and physiological responses of male moths to different sexual audiences before and during mating. Results showed that males adjusted their mating behaviors and spermatophore size based on the perceived risk of sperm competition, and reduced mating duration in the presence of females. However, these adjustments did not have an effect on reproductive performance.

INSECT SCIENCE (2022)

Article Parasitology

Coccidial oocyst release: once a day or all day long? Tropical bird hosts shed new light on the adaptive significance of diurnal periodicity in parasite output

Clotilde Biard, Karine Monceau, Maria Teixeira, Sebastien Motreuil, Soline Bettencourt-Amarante, Lucie Develay, Jerome Moreau

Summary: Many parasites release infectious forms in the environment to infect new hosts, and the emergence of infectious life stages often shows circadian variation to increase survival advantage and adapt to environmental pressures.

PARASITOLOGY (2022)

Article Biodiversity Conservation

Does anthropization affect physiology, behaviour and life-history traits of Montagu's harrier chicks?

J. Rabdeau, M. Desbonnes, V Bretagnolle, J. Moreau, K. Monceau

Summary: The last century has witnessed a significant decline in biodiversity, with anthropogenic activities being one of the major drivers. Anthropogenic disturbances can cause chronic stress to wildlife, leading to negative effects on fitness. This study aimed to investigate the effects of anthropogenic elements on Montagu's harrier chicks in sparsely urbanized farmland. The results showed that higher anthropization levels were associated with increased stress hormone levels and lower body condition in females. Nestlings in more anthropized areas or harvested crops also exhibited more developmental stress and altered behaviors. The findings highlight the importance of minimizing disturbances in nesting areas of protected bird species.

ANIMAL CONSERVATION (2023)

Article Agriculture, Multidisciplinary

Organic farming positively affects the vitality of passerine birds in agricultural landscapes

Jerome Moreau, Karine Monceau, Gladys Gonnet, Marie Pfister, Vincent Bretagnolle

Summary: This study found that organic farming has a positive impact on the behavior of passerine birds compared to conventional farming, regardless of species. These findings suggest that observing the behavior of passerine birds can provide valuable insights into the state of the environment and serve as an early warning for specific environmental changes in agricultural areas.

AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2022)

Review Environmental Sciences

Pesticide impacts on avian species with special reference to farmland birds: a review

Jerome Moreau, Juliette Rabdeau, Isabelle Badenhausser, Mathieu Giraudeau, Tuul Sepp, Malaury Crepin, Agathe Gaffard, Vincent Bretagnolle, Karine Monceau

Summary: This article reviews the effects of pesticides on bird physiology, behavior, and life-history traits, highlighting the gaps in current research. The study emphasizes that most research has focused on controlled laboratory conditions and has ignored species differences in sensitivity as well as the multiple exposure pathways in natural environments, which have significant consequences for bird populations and communities.

ENVIRONMENTAL MONITORING AND ASSESSMENT (2022)

Article Biochemical Research Methods

Analytical development for the assessment of pesticide contaminations in blood and plasma of wild birds: The case of grey partridges (Perdix perdix)

A. Rodrigues, A. Gaffard, J. Moreau, K. Monceau, O. Delhomme, M. Millet

Summary: In this study, blood and plasma samples of grey partridges were analyzed for potential contamination by pesticide compounds. Two analytical methods, LC-MS/MS and ATD-GC-MS/MS, were optimized and validated for sensitive detection and quantification. These methods were successfully applied to analyze 70 blood samples and 35 plasma samples.

JOURNAL OF CHROMATOGRAPHY A (2023)

Article Environmental Sciences

Neonicotinoids: Still present in farmland birds despite their ban

Elva Fuentes, Agathe Gaffard, Anais Rodrigues, Maurice Millet, Vincent Bretagnolle, Jerome Moreau, Karine Monceau

Summary: This study found that neonicotinoid insecticides, which are widely used worldwide, are harmful to farmland bird species and can have potential toxic effects on the environment. Residues of these pesticides were found in bird species at different trophic levels and life stages. The persistence of neonicotinoids in the environment and their mode of exposure to wildlife are still uncertain.

CHEMOSPHERE (2023)

Article Environmental Sciences

Pesticide contamination in an intensive insect predator of honey bees

Lea Tison, Celine Franc, Louisiane Burkart, Herve Jactel, Karine Monceau, Gilles de Revel, Denis Thiery

Summary: Pesticides used for plant protection are a major cause of insect decline. This study found pesticide residues in the invasive hornet Vespa velutina, which preys on honey bees. The results show that hornets from nests in urban areas are the most contaminated.

ENVIRONMENT INTERNATIONAL (2023)

Article Agriculture, Multidisciplinary

Effects of conventional vs. organic farming practices on raptor nestling health: Neither black nor white

Elva Fuentes, Jerome Moreau, Maria Teixeira, Vincent Bretagnolle, Karine Monceau

Summary: Agricultural intensification poses a major threat to biodiversity, particularly for farmland bird specialists like Montagu's harrier. Organic farming systems benefit bird reproductive success and biodiversity through promoting agroecosystem health. This study investigates the effects of organic farming on the life history traits of Montagu's harrier chicks and finds associations between organic farming percentage at a local scale, chick energy metabolism, and ornament coloration.

AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2023)

暂无数据