Result 1 - 10 of total 26
PLOS ONE, 4(9):e0222963
2019
| Institution | Leibniz-Institut für Zoo- und Wildtierforschung (Berlin) |
|---|---|
| Language | English |
| Document type | Article |
| Database | Repository for Life Sciences |
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PLOS ONE, 14(8):e0221124
2019
Abstract: The measurement of hair cortisol is increasingly used to understand the effect of natural and anthropogenic stressors on wild animals, but it is potentially confounded by individual, seasonal and sex-dependant variations in baseline cortisol secretion. ... ...
| Institution | Leibniz-Institut für Zoo- und Wildtierforschung (Berlin) |
|---|---|
| Abstract | The measurement of hair cortisol is increasingly used to understand the effect of natural and anthropogenic stressors on wild animals, but it is potentially confounded by individual, seasonal and sex-dependant variations in baseline cortisol secretion. This study validated an enzyme-linked immunoassay for hair cortisol measurement and characterized its baseline variation in a wild population of Egyptian mongoose. The analysis encompassed individuals of both sexes and all ages, across a range of geographic, environmental and seasonal conditions that the species experiences in Portugal allowing us to account for spatial, temporal and biological factors that contribute to hair cortisol variation. Our results showed that age, sex and storage time had an effect on hair cortisol, but season did not. Hair cortisol was higher in early stage juveniles compared to other age cohorts, in males when compared to females, and decreased with longer storage time. By identifying the factors that influence baseline hair cortisol in this wild population, we establish the basis for its application as an indicator of the effect of natural and anthropogenic stressors |
| Language | English |
| Document type | Article |
| Database | Repository for Life Sciences |
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Check List. 2022 Apr. 28, v. 18, no. 2 p.419-424
2022
Abstract: We present a new record of the Asian Mourning Gecko, Lepidodactylus lugubris (Duméril & Bibron, 1836) in the Atlantic Forest of eastern South America. Lepidodactylus lugubris is a widely distributed lizard currently occurring throughout most of the ... ...
| Abstract | We present a new record of the Asian Mourning Gecko, Lepidodactylus lugubris (Duméril & Bibron, 1836) in the Atlantic Forest of eastern South America. Lepidodactylus lugubris is a widely distributed lizard currently occurring throughout most of the northern Neotropical Region, including the Galapagos and the eastern Pacific islands. Unlike the Amazon Rainforest, which has wide forested cover and essentially diurnal geckos, the threatened Atlantic Forest has had most of its original vegetation removed. The arrival of L. lugubris in the region deserves attention and study, aiming understand the impact of this exotic gecko on the Atlantic Forest native gecko fauna. |
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| Keywords | Gekkonidae ; Neotropics ; boats ; fauna ; forests ; lizards ; Amazonia ; South America |
| Language | English |
| Dates of publication | 2022-0428 |
| Size | p. 419-424. |
| Publishing place | Pensoft Publishers |
| Document type | Article ; Online |
| ZDB-ID | 2252867-2 |
| ISSN | 1809-127X |
| ISSN | 1809-127X |
| DOI | 10.15560/18.2.419 |
| Database | NAL-Catalogue (AGRICOLA) |
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2020 Volume 8, Issue 3
Abstract: The Egyptian mongoose ( ...
| Abstract | The Egyptian mongoose ( |
|---|---|
| Language | English |
| Publishing date | 2020-03-11 |
| Publishing country | Switzerland |
| Document type | Journal Article |
| ZDB-ID | 2720891-6 |
| ISSN | 2076-2607 |
| ISSN | 2076-2607 |
| DOI | 10.3390/microorganisms8030392 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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2020 Volume 8, Issue 6
Abstract: Recently, we unveiled taxonomical and functional differences in Egyptian mongoose ( ...
| Abstract | Recently, we unveiled taxonomical and functional differences in Egyptian mongoose ( |
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| Language | English |
| Publishing date | 2020-05-27 |
| Publishing country | Switzerland |
| Document type | Journal Article |
| ZDB-ID | 2720891-6 |
| ISSN | 2076-2607 |
| ISSN | 2076-2607 |
| DOI | 10.3390/microorganisms8060808 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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2021 Volume 9, Issue 1, Page(s) coab050
Abstract: Understanding the causes of range expansions in abundant species can help predict future species distributions. During range expansions, animals are exposed to novel environments and are required to cope with new and unpredictable stressors. ... ...
| Abstract | Understanding the causes of range expansions in abundant species can help predict future species distributions. During range expansions, animals are exposed to novel environments and are required to cope with new and unpredictable stressors. Glucocorticoids (GCs) are mediators of the hormonal and behavioural mechanisms allowing animals to cope with unpredictable changes in the environment and are therefore expected to differ between populations at expansion edge and the historic range. However, to date, very few studies have evaluated the relationship between GCs and range expansion. The Egyptian mongoose has been rapidly expanding its range in Portugal over the past 30 years. In this study, we applied an information theoretic approach to determine the most important spatial and environmental predictors of hair GCs (hGCs) in the population, after controlling for normal patterns of hGC variation in the species. We observed a decrease in hGC as distance from the historic range increased (i.e. closer to the expansion front). This distance term was present in all of the top models and had a 95% confidence interval (95% CI) that did not overlap with zero, strongly supporting its influence on hGC. We estimated a 0.031 pg/mg (95% CI: -0.057, -0.004) decrease in hGCs for each kilometre distance to the Tagus River, which was once the limit of the species' distribution. Our results indicate that the species' expansion is unlikely to be limited by mechanisms related to or mediated by the physiological stress response. The decrease in hGC levels towards the expansion edge coupled with limited evidence of a negative effect of human population density suggests that the species' northward expansion in Portugal could continue. |
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| Language | English |
| Publishing date | 2021-07-02 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 2721508-8 |
| ISSN | 2051-1434 |
| ISSN | 2051-1434 |
| DOI | 10.1093/conphys/coab050 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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Microorganisms. 2020 May 27, v. 8, no. 6
2020
Abstract: Recently, we unveiled taxonomical and functional differences in Egyptian mongoose (Herpestes ichneumon) gut microbiota across sex and age classes by microbial profiling. In this study, we generate, through culturomics, extended baseline information on ... ...
| Abstract | Recently, we unveiled taxonomical and functional differences in Egyptian mongoose (Herpestes ichneumon) gut microbiota across sex and age classes by microbial profiling. In this study, we generate, through culturomics, extended baseline information on the culturable bacterial and fungal microbiome of the species using the same specimens as models. Firstly, this strategy enabled us to explore cultivable microbial community differences across sexes and to ascertain the influence exerted by biological and environmental contexts of each host in its microbiota signature. Secondly, it permitted us to compare the culturomics and microbial profiling approaches and their ability to provide information on mongoose gut microbiota. In agreement with microbial profiling, culturomics showed that the core gut cultivable microbiota of the mongoose is dominated by Firmicutes and, as previously found, is able to distinguish sex- and age class-specific genera. Additional information could be obtained by culturomics, with six new genera unveiled. Richness indices and the Shannon index were concordant between culture-dependent and culture-independent approaches, highlighting significantly higher values when using microbial profiling. However, the Simpson index underlined higher values for the culturomics-generated data. These contrasting results were due to a differential influence of dominant and rare taxa on those indices. Beta diversity analyses of culturable microbiota showed similarities between adults and juveniles, but not in the data series originated from microbial profiling. Additionally, whereas the microbial profiling indicated that there were several bioenvironmental features related to the bacterial gut microbiota of the Egyptian mongoose, a clear association between microbiota and bioenvironmental features could not be established through culturomics. The discrepancies found between the data generated by the two methodologies and the underlying inferences, both in terms of β-diversity and role of bioenvironmental features, confirm that culture-independent, sequence-based methods have a higher ability to assess, at a fine scale, the influence of abiotic and biotic factors on the microbial community composition of mongoose’ gut. However, when used in a complementary perspective, this knowledge can be expanded by culturomics. |
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| Keywords | Firmicutes ; Herpestes ; community structure ; digestive system ; fungi ; intestinal microorganisms ; microbial communities ; microbiome ; species diversity |
| Language | English |
| Dates of publication | 2020-0527 |
| Publishing place | Multidisciplinary Digital Publishing Institute |
| Document type | Article |
| ZDB-ID | 2720891-6 |
| ISSN | 2076-2607 |
| ISSN | 2076-2607 |
| DOI | 10.3390/microorganisms8060808 |
| Database | NAL-Catalogue (AGRICOLA) |
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Microorganisms. 2020 Mar. 11, v. 8, no. 3
2020
Abstract: The Egyptian mongoose (Herpestes ichneumon) is a medium-size carnivore that, in Europe, is restricted to Iberia. The bio-ecology of this species remains to be elucidated in several dimensions, including gut microbiota that is nowadays recognized as a ... ...
| Abstract | The Egyptian mongoose (Herpestes ichneumon) is a medium-size carnivore that, in Europe, is restricted to Iberia. The bio-ecology of this species remains to be elucidated in several dimensions, including gut microbiota that is nowadays recognized as a fundamental component of mammals. In this work, we investigated the gut microbiota of this herpestid by single-molecule real-time sequencing of twenty paired male (n = 10) and female (n = 10) intestinal samples. This culture-independent approach enabled microbial profiling based on 16S rDNA and investigation of taxonomical and functional features. The core gut microbiome of the adult subpopulation was dominated by Firmicutes, Fusobacteria, Actinobacteria, and Proteobacteria. Eight genera were uniquely found in adults and five in non-adults. When comparing gut bacterial communities across sex, four genera were exclusive of females and six uniquely found in males. Despite these compositional distinctions, alpha- and beta-diversity analyses showed no statistically significant differences across sex or between adult and non-adult specimens. However, when function was inferred, males presented a significantly higher abundance of amino acid and citrate cycle metabolic pathways, compared to the significant overrepresentation in females of galactose metabolic pathways. Additionally, adults exhibited a significantly higher abundance of cationic antimicrobial peptide resistance pathways, while non-adults bared a significant overrepresentation of two-component systems associated with antibiotic synthesis, flagellin and biofilm production, and chemotaxis control. This study adds new insights into the mongoose bio-ecology palette, highlighting taxonomical and functional microbiome dissimilarities across sex and age classes, possibly related to primary production resources and life-history traits that impact on behavior and diet. |
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| Keywords | Actinobacteria ; Firmicutes ; Fusobacteria ; Herpestes ; Proteobacteria ; adults ; amino acids ; antibiotics ; antimicrobial peptides ; biofilm ; carnivores ; chemotaxis ; diet ; females ; flagellin ; galactose ; intestinal microorganisms ; intestines ; life history ; males ; microbiome ; primary productivity ; species diversity ; tricarboxylic acid cycle ; Iberian Peninsula |
| Language | English |
| Dates of publication | 2020-0311 |
| Publishing place | Multidisciplinary Digital Publishing Institute |
| Document type | Article |
| ZDB-ID | 2720891-6 |
| ISSN | 2076-2607 |
| ISSN | 2076-2607 |
| DOI | 10.3390/microorganisms8030392 |
| Database | NAL-Catalogue (AGRICOLA) |
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International journal of environmental research and public health
2020 Volume 17, Issue 9
Abstract: The Egyptian mongoose is a carnivore mammal species that in the last decades experienced a tremendous expansion in Iberia, particularly in Portugal, mainly due to its remarkable ecological plasticity in response to land-use changes. However, this species ...
| Abstract | The Egyptian mongoose is a carnivore mammal species that in the last decades experienced a tremendous expansion in Iberia, particularly in Portugal, mainly due to its remarkable ecological plasticity in response to land-use changes. However, this species may have a disruptive role on native communities in areas where it has recently arrived due to predation and the potential introduction of novel pathogens. We report reference information on the cultivable gut microbial landscape of widely distributed Egyptian mongoose populations ( |
|---|---|
| MeSH term(s) | Animals ; Drug Resistance ; Ecosystem ; Gastrointestinal Microbiome ; Herpestidae/microbiology ; Introduced Species ; Microbial Sensitivity Tests ; Portugal |
| Language | English |
| Publishing date | 2020-04-29 |
| Publishing country | Switzerland |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't |
| ISSN | 1660-4601 |
| ISSN (online) | 1660-4601 |
| DOI | 10.3390/ijerph17093104 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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Mammal Review. 2023 Oct., v. 53, no. 4 p.254-270
2023
Abstract: Mammalian carnivores (Carnivora) are crucial components of landscapes, because of both their top‐down effects on lower trophic level species and their sensitivity to bottom‐up processes, such as limited food resources (e.g. due to climate instability). ... ...
| Abstract | Mammalian carnivores (Carnivora) are crucial components of landscapes, because of both their top‐down effects on lower trophic level species and their sensitivity to bottom‐up processes, such as limited food resources (e.g. due to climate instability). To understand their functional role in Iberian ecosystems more clearly, and to define effective plans for their management and conservation, it is crucial to sum up the available regional knowledge that can inform decision‐making processes. We review bio‐ecological research on wild Iberian carnivores over 30 years (1990–2020) and identify key knowledge gaps and priority avenues for future research. Based on a systematic review of the scientific literature, we aimed to: 1) summarise current knowledge; 2) assess species and ecoregion representativeness; 3) identify key research topics addressed and those lacking investment and 4) suggest key future research priorities. We examined 920 peer‐reviewed articles involving wild Iberian mammalian carnivores, focusing on different bio‐ecological issues. We found considerable heterogeneity in the topics and species investigated, as well as in the study areas (ecoregions) explored, with a mismatch between the research priorities identified by researchers and the knowledge gaps. We suggest that future research should prioritise: 1) rear‐edge populations that are at the southwestern limits of the species' Eurasian range, thus being particularly sensitive to the increasing fragmentation and aridity of Iberian ecosystems, and that were less studied (e.g. brown bear Ursus arctos, stoat Mustela erminea, European mink Mustela lutreola and pine marten Martes martes); 2) less‐studied topics, such as morphometry and body condition, ecophysiology, and reproductive biology, all of which provide essential information for species' management and conservation and 3) specific ecoregions for which studies on species' adaptations to environmental and anthropic contexts are lacking (e.g. northern ecoregions of Iberia, Iberian conifer forests and Northwest Iberian montane forests). Our review provides the necessary background to support future research on carnivore populations in Iberia. |
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| Keywords | Martes martes ; Mustela erminea ; Mustela lutreola ; Ursus arctos ; body condition ; carnivores ; climate ; conifers ; decision making ; dry environmental conditions ; ecophysiology ; ecoregions ; mammals ; morphometry ; systematic review ; trophic levels ; Iberian Peninsula |
| Language | English |
| Dates of publication | 2023-10 |
| Size | p. 254-270. |
| Publishing place | John Wiley & Sons, Ltd |
| Document type | Article ; Online |
| Note | REVIEW |
| ZDB-ID | 2020637-9 |
| ISSN | 1365-2907 ; 0305-1838 |
| ISSN (online) | 1365-2907 |
| ISSN | 0305-1838 |
| DOI | 10.1111/mam.12322 |
| Database | NAL-Catalogue (AGRICOLA) |
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