Search results for "threat"
showing 10 items of 318 documents
Sex-Biased Inbreeding Effects on Reproductive Success and Home Range Size of the Critically Endangered Black Rhinoceros
2013
A central premise of conservation biology is that small populations suffer reduced viability through loss of genetic diversity and inbreeding. However, there is little evidence that variation in inbreeding impacts individual reproductive success within remnant populations of threatened taxa, largely due to problems associated with obtaining comprehensive pedigree information to estimate inbreeding. In the critically en- dangered black rhinoceros, a species that experienced severe demographic reductions, we used model selection to identify factors associated with variation in reproductive success (number of offspring). Factors examined as predictors of reproductive success were age, home ran…
Development of retrotransposon-based SSAP molecular marker system for study of genetic diversity in sea holly (Eryngium maritimum L.)
2010
Eryngium maritimum L. is a wild plant species threatened or endangered in most of Northern Europe, where species is on the northern margin of its distribution range. Recent studies have found reduction of size and even extinction of many populations. Assessment of genetic diversity in natural populations of endangered wild plant species can reflect condition and fitness of particular population and inform decisions on appropriate conservation measures. Application of inter simple sequence repeat markers and chloroplast DNA sequencing could not resolve genetic relationship between E. maritimum populations in Northern Europe. Therefore, the more sensitive retrotransposon-sequence-specific amp…
The Palaeontological heritage of Ribeira de Cacela (Algarve, Portugal). Its preservation in the Portuguese context
2021
The protection of palaeontological heritage is justified by its own specificity, which results from its limited visibility, spatial variability, irreproducibility and importance as a record of past biodiversity. Until the present in Portugal the laws concerning the preservation of natural areas are focused mainly on the protection of threatened living species and their habitats, neglecting any geological aspect, and even less the concept of palaeontological heritage. The present analysis refers to the fossil-site of Ribeira de Cacela, included in the Natural Park of Ria Formosa (Algarve, southern Portugal), which represents a site of great paleontological interest. No particular palaeontolo…
Author response: Genomic basis for drought resistance in European beech forests threatened by climate change
2021
Discovery of a second locality for the narrow endemic Anthemis ismelia (Asteraceae) in NW Sicily
2017
A new population of Anthemis ismelia (Asteraceae) has been discovered on Mt Pecoraro (Cinisi, NW Sicily), a limestone headland at about 14 km from Mt Gallo (Palermo), the locus classicus et unicus of this species described in 1884. Taxonomic framework, distribution update, habitat characterisation, ecology and phytosociological framework are provided, as well as meta-population numerical estimates and risk status assessment.
Dysfunctional beliefs about health and illness: a family study
2019
Los modelos cognitivos sobre la hipocondría postulan que las experiencias tempranas con la enfermedad promueven el desarrollo de creencias disfuncionales sobre la enfermedad. Estas creencias pueden permanecer latentes y activarse ante un incidente crítico. Los estudios publicados aportan datos que avalan de mane- ra indirecta estos planteamientos. Teniendo en cuenta que en el núcleo familiar primario se comparten experiencias sobre la enfer- medad, examinamos la relación entre las creencias disfuncionales que los progenitores y sus descendientes mantienen sobre la en- fermedad y los pensamientos, tales como la intolerancia a la incer- tidumbre y la sobreestimación de la amenaza, y las relac…
Work-life balance during the COVID-19 outbreak: the case of Latvia
2020
This paper aims to shed light on work-life balance in Latvia during the state of emergency The COVID-19 outbreak has led many governments to introduce lockdowns While imposed restrictions may help to contain the spread of the virus, they may also result in substantial damage to population well-being The COVID-19 outbreak in Latvia demonstrates the extent and ways in which socio-demographics factors have determined different patterns of behaviour, attitudes, employment changes and harmonised work and life balance The study describes the chronological development of COVID-19 in the country It describes labour migration to and from Latvia before the COVID-19 outbreak It provides geographical f…
Are Chinese immigrants in Cameroon perceived as a threat?
2021
Chinese immigration to Cameroon has significantly increased within the last two decades. Members of the Cameroonian society have received Chinese presence with mixed feelings. Recent reports indicate that negative attitudes towards Chinese immigrants are on the rise. In a sample of 501 young people, ranging from 17 to 33 years old, this study specifically uses the integrated threat theory of prejudice to analyse the extent to which attitudes towards Chinese immigrants in Cameroon are predicted by the perception of threat. According to the most recent conceptualization of the integrated threat theory, there are two main types of threat that predict negative attitudes towards outgroups. These…
Stereotypes in Persuasive Communication: Influence Exerted by a Disapproved Source
2004
The present paper examines how someone's use of stereotypes can exert influence over others’ judgments. In the 2 studies reported here, participants were presented with messages containing information provided by a source. In Study 1, the source was an in-group member. The messages were manipulated in a between-subjects design so that participants were either given stereotypical or counterstereotypical information. After being given a hint regarding the source's estimate, participants were asked to provide their own estimates about a number of points displayed on a computer screen. Results indicate that participants tended to use as an anchor the estimate provided by the source that made us…
Global and Regional IUCN Red List Assessments: 13
2022
In this contribution, the conservation status assessment of two vascular plants according to IUCN categories and criteria are presented. It includes the global assessment of Isoëtes todaroana Troìa & Raimondo and Moluccella bucharica (B.Fedtsch.) Ryding.