Abstract：
:The aim of this experimental study was to investigate kin discrimination in the polecat and to analyse the ontogeny of interactions. Juvenile polecats (ten males and nine females) had been raised under four distinct experimental conditions: 1, kin, familiar; 2, kin, unfamiliar; 3, non-kin, familiar; 4, non-kin, unfamiliar. During dyadic encounters between polecats in neutral enclosures, the number of positive (tolerance), negative (aggression), intermediate (intimidation), and neutral interactions (no direct interactions) were recorded at two different ages of the animals (50 and 70 days old). Male-male encounters were characterised by more aggressive behaviour than female-female ones. The proportion of these negative interactions increased with age, while the proportion of positive interactions decreased. Although aggressive behaviours varied among groups, the reaction did never differ with the kinship. Kin selection theory provides successful explanations for a wide range of phenomena, but our results suggest that multiple mechanisms running simultaneously might be involved in social behaviours. Familiarity clearly influenced the social behaviour of polecats and might be involved in a kin facilitation effect favouring interactions. Animals raised together demonstrated more positive and less negative interactions, so that, despite the individualistic way of life of the polecat, familiarisation may result in more tolerance, emphasising that solitary species may provide significant information on social life. Anyway, familiarisation in polecat may be regarded as a cognitive form of recognition.
journal_name
C R Bioljournal_title
Comptes rendus biologiesauthors
Lodé Tdoi
10.1016/j.crvi.2007.12.006subject
Has Abstractpub_date
2008-03-01 00:00:00pages
248-54issue
3eissn
1631-0691issn
1768-3238pii
S1631-0691(07)00405-2journal_volume
331pub_type
杂志文章abstract：:More than 5 years after the description of the first cases of variant Creutzfeldt-Jakob disease (vCJD), there is still great uncertainty about the size of the vCJD epidemic in the United Kingdom (UK), although the most recent predictions based on statistical modelling are more optimistic than the previous ones. The nu...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01410-5
更新日期：2002-01-01 00:00:00
abstract：:The first veterinary school in the world was created in Lyon in 1761 by an equerry, Claude Bourgelat (1712-1779), a man renowned for his skill in horsemanship and horse medicine, a man fully able to understand the issues of his time. Aware of the scope of the physiocratic movement and of the need to improve the health...
journal_title：Comptes rendus biologies
pub_type： 传,历史文章,杂志文章,评审
doi：10.1016/j.crvi.2012.02.005
更新日期：2012-05-01 00:00:00
abstract：:In this work we show how mathematical models and optimal control techniques can help us to solve some problems of environmental engineering, more precisely, water pollution problems arising from wastewater discharges into coastal areas or rivers. We deal with a complete two-dimensional mathematical model for the evolu...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2004.08.010
更新日期：2005-04-01 00:00:00
abstract：:Bacterial blight (BB) is caused by Xanthomonas oryzae pv. oryzae (Xoo), a most destructive disease of rice, mostly in Asia, including Bangladesh. Altogether 96 isolates of Xoo were collected from 19 rice-growing districts of Bangladesh in both the rain-fed and irrigated seasons of 2014 to assess their pathotypic and g...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2016.06.002
更新日期：2016-09-01 00:00:00
abstract：:Rhizomania is one of serious threat to sugar beet production in Morocco and in several parts of the world. This disease led to a statistically significant decrease in the quality and yield of sugar beet plantations. Therefore, this study aimed at comparing the efficacy of six commonly used RNA extraction methods for t...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2018.06.003
更新日期：2018-01-01 00:00:00
abstract：:A new genus and species of stick insect is described and figured from Mount Halcon, on the Philippine island of Mindoro. Conlephasma enigma gen. et sp. n. is a stout, flightless, and apparently ground-dwelling species with vivid integumental colors. When disturbed, specimens spray a defensive secretion from the protho...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2012.07.004
更新日期：2012-09-01 00:00:00
abstract：:Surgical resection of hepatic tumours is not always possible, since it depends on different factors, among which their location inside the liver functional segments. Alternative techniques consist in local use of chemical or physical agents to destroy the tumour. Radio frequency and cryosurgical ablations are examples...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01439-7
更新日期：2002-04-01 00:00:00
abstract：:An agent-based model (AMB) used to simulate the spread of Human African Trypanosomiasis is presented together with the results of simulations of a focus of the disease. This model is a completely spatialized approach taking into account a series of often overlooked parameters such as human behaviour (activity-related ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2003.12.002
更新日期：2004-01-01 00:00:00
abstract：:In the frame of the largest French project of artificial production reefs, initiated by the city of Marseilles in 2001, the present study aimed at describing the hydrodynamic pattern of the coastal area considered, by the use of a 3D numerical modelling. Results were local wind statistics, bottom current fields and dr...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2006.04.002
更新日期：2006-07-01 00:00:00
abstract：:The spatial variation of soil pH and soil organic matter (SOM) in the urban area of Xuzhou, China, was investigated in this study. Conventional statistics, geostatistics, and a geographical information system (GIS) were used to produce spatial distribution maps and to provide information about land use types. A total ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.02.008
更新日期：2014-05-01 00:00:00
abstract：:The authors' purpose will be here to underline the continuity of the adaptative processes that make Homo sapiens, sometimes a brilliant inventor, sometimes a mere imitator, forging tools already conceived by Nature itself. ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2007.06.006
更新日期：2007-10-01 00:00:00
abstract：:Apoptosis and inflammation are important cellular processes that are highly regulated through specific protein-protein interactions (PPI). Proteins involved in these signaling cascades often carry PPI domains that belong to the death-domain superfamily. This includes the structurally well-characterized Death Domain (D...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2004.08.006
更新日期：2004-12-01 00:00:00
abstract：:Psychometric tests obtained from 6564 young men were studied as a function of the parents' ages at conception and of some characteristics of the subject's postnatal environment. Individual scores, from 0 to 20, were divided into two groups: n(1)11 and n(2)<11. In univariate analysis, scores <11 were respectively relat...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2009.02.008
更新日期：2009-07-01 00:00:00
abstract：:Cnidarians (corals and sea anemones) harbouring photosynthetic microalgae derive several benefits from their association. To allow this association, numerous symbiotic-dependent adaptations in both partners, resulting from evolutionary pressures, have been selected. The dinoflagellate symbionts (zooxanthellae) are loc...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2018.03.007
更新日期：2018-01-01 00:00:00
abstract：:Two ground-dwelling couas species, Coquerel's Coua Coua coquereli and Giant Coua Coua gigas, live in sympatry in the dry forest of Madagascar. These birds are typically insectivorous and mainly feed at ground level. The two species differ by size but have the same morphology, suggesting they have the same physical att...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2009.01.005
更新日期：2009-06-01 00:00:00
abstract：:Sleep disorders have a high prevalence: around 20% of insomniacs, 10% hypersomnolent including 2 to 4% of sleep disordered breathing in the general adult population. The low availability of sleep centres implies the research of alternative recording techniques in the natural setting of the patient. The objective was t...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01437-3
更新日期：2002-04-01 00:00:00
abstract：:The overall rate of functioning of a set of free sequential enzymes of the Michaelis-Menten type involved in a metabolic pathway has been computed as a function of the concentration of the initial substrate under steady-state conditions. Curves monotonically increasing up to a saturation plateau have been obtained in ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2006.02.008
更新日期：2006-12-01 00:00:00
abstract：:Aphids are among the few organisms capable of reproducing either sexually or asexually. This plasticity in reproductive mode is viewed as an adaptive response to cope with seasonal changes. Clonal reproduction occurs during the growing season allowing rapid population increase, while sexual reproduction occurs during ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2010.03.003
更新日期：2010-06-01 00:00:00
abstract：:Discriminative canonical analysis of 87 biometric parameters in the marine and lagoon atherinids of 'Atherina boyeri' complex from the Mediterranean Sea helps defining three distinct atherinid groups: marine punctuated, marine unpunctuated and lagoon atherinids. Each atherinid group constitutes a clearly independent o...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01506-8
更新日期：2002-09-01 00:00:00
abstract：:Despite the fact that coverage is one of the most widely used descriptors for seagrass meadows, the spatial structure of coverage at mesoscale has not often been taken into account. The present work investigates the structure of P. oceanica coverage at mesoscale and its possible relationship with several factors (dept...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2006.05.001
更新日期：2006-09-01 00:00:00
abstract：:This study was undertaken to assess the risk of poisoning due to consumption of the puffer fish Lagocephalus lagocephalus collected along the Tunisian coast. Wistar rats were daily intraperitoneally injected, for 10 days, with acidic extracts of liver or flesh (muscles + skin) of L. lagocephalus. Control rats received...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2008.05.005
更新日期：2008-08-01 00:00:00
abstract：:Although there are many types of epilepsy of both genetic and acquired forms, temporal lobe epilepsy (TLE) with hippocampal sclerosis is probably the single most common human epilepsy, and the one most intensely studied. Despite a wealth of descriptive data obtained from patient histories, imaging techniques, electroe...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2004.10.010
更新日期：2005-02-01 00:00:00
abstract：:Meiosis is a specialized cell division at the origin of the haploid cells that eventually develop into the gametes. It therefore lies at the heart of Mendelian heredity. Recombination and redistribution of the homologous chromosomes arising during meiosis constitute an important source of genetic diversity, conferring...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2016.04.003
更新日期：2016-07-01 00:00:00
abstract：:We propose to start the analysis of complex systems by systematically identifying the feedback circuits that govern their dynamics. These circuits can be identified without any ambiguity by examining the Jacobian matrix of the system. They provide precious information regarding the number and nature of steady states. ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(02)01452-x
更新日期：2002-04-01 00:00:00
abstract：:This article starts with the observation of a non-linear relationship between health progress and economic development. This relationship is interpreted as resulting from a bidirectional interaction between these two variables, which may lead a country to a poverty trap or, alternatively, to a virtuous circle of econo...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2008.08.004
更新日期：2008-12-01 00:00:00
abstract：:Plants recognize certain microbial compounds as elicitors in their active defence mechanisms. It has been shown that a series of defence reactions are induced in potato plant cells after treatment with water-soluble hyphal wall components prepared from Phytophthora infestans. In this study, a methanol extract from myc...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2015.01.004
更新日期：2015-03-01 00:00:00
abstract：:In spite of great progress in schistosomiasis control during the last decade in Burkina Faso, this disease remains a public health concern in the country. Indeed, our study consisted of the analysis of parasitological data related to Schistosoma haematobium and Schistosoma mansoni and in malacological investigations. ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.04.014
更新日期：2013-05-01 00:00:00
abstract：:The concept of biodiversity hotspot at the regional and global scale has contributed to the improvement of the conservation strategies. The need for precise evaluation is often hampered by lapses of knowledge in some Mediterranean regional hotspots. The objective of the present work is to analyse the diversity of ende...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2007.04.006
更新日期：2007-08-01 00:00:00
abstract：:To add to our understanding of dendrocoelid spermatozoa and to describe additional phylogenetic characters, the ultrastructure of the testis was investigated in the subterranean freshwater planarian Dendrocoelum constrictum. This is the first study investigating spermatogenesis and spermatozoon ultrastructure in a sub...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.07.004
更新日期：2014-09-01 00:00:00
abstract：:This work assesses the impact of the use of chicken manure and irrigation water on the toxicological quality of Solanum macrocarpon, a highly appreciated vegetable. A control site in Glo-Djigbé, gardeners' sites at Houéyiho, Fidjrossè, and Agongbomey were included in the study. Lead has been sought in the environment ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.04.006
更新日期：2013-05-01 00:00:00
