Claudia Baider

Claudia Baider
Agricultural Services, Ministry of Agro-Industry and Food Security · The Mauritius Herbarium

PhD, Universidade de Sao Paulo

About

134
Publications
58,570
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,990
Citations
Citations since 2016
77 Research Items
2596 Citations
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
Introduction
I am currently in charge of the National Herbarium, Mauritius. My main research interest is in the conservation of biodiversity in tropical terrestrial systems focussing on the Amazon and the Atlantic forests and more recently the Mascarenes within the Madagascar and SW Indian Ocean Biodiversity hotspot where I investigate the impact of invasive alien species on the biodiversity of tropical forests. I am also interested in restoration ecology and taxonomy of Mascarene flowering plants.
Additional affiliations
November 2012 - present
Ministry Of Agro Industry and Food Security, Mauritius
Ministry Of Agro Industry and Food Security, Mauritius
Position
  • Herbarium Manager
Description
  • The Mauritius Herbarium has a regional focus (Mascarenes - Rodrigues, Reunion and Rodrigues), that conduct and facilitate research on local flora (all groups). With around 30,000 collections, more than 150 types, older specimen dated back to 1768.
August 2003 - October 2012
Mauritius Sugar Industry Research Institute
Position
  • Herbarium Officer
Education
April 1995 - August 2000
University of São Paulo
Field of study
  • Ecology
August 1991 - November 1994
University of São Paulo
Field of study
  • Ecology
February 1986 - June 1990
University of São Paulo
Field of study
  • Biology

Publications

Publications (134)
Article
Full-text available
The vast extent of the Amazon Basin has historically restricted the study of its tree communities to the local and regional scales. Here, we provide empirical data on the commonness, rarity, and richness of lowland tree species across the entire Amazon Basin and Guiana Shield (Amazonia), collected in 1170 tree plots in all major forest types. Extra...
Article
Restoration science is a relatively young branch of ecology that is growing in importance owing to the sheer scale and trend of habitat degradation worldwide and the range of strong benefits that it is seen to potentially carry. Although spearheaded mainly by developed countries, its usefulness at least for the conservation of biodiversity may be g...
Article
Invasive alien species constitute a major threat to biodiversity and cases of extinction caused by invasive alien animals are abundant. However, while invasive alien plants also harm native biota there exists a lack of cases demonstrating their ability to cause extinction of native plant species. Different alien species (vertebrates, invertebrates,...
Article
Full-text available
A comparative analysis of 23 populations of the Brazil nut tree (Bertholletia excelsa) across the Brazilian, Peruvian, and Bolivian Amazon shows that the history and intensity of Brazil nut exploitation are major determinants of population size structure. Populations subjected to persistent levels of harvest lack juvenile trees less than 60 centime...
Conference Paper
Full-text available
Biological invasions are a major driver of biodiversity loss, especially on islands. Invasive alien vertebrates, in particular, exert varied negative impacts on native plants, and alien rats are among the most detrimental of such vertebrates. Best known as potent seed predators, they also exert other forms of herbivory that may depress seed product...
Article
Full-text available
A prominent feature of the modern era is the increasing spread of invasive species, particularly within island and urban ecosystems, and these occurrences provide valuable natural experiments by which evolutionary and invasion hypotheses can be tested. In this study, we used the invasion route of guttural toads (Sclerophrys gutturalis) from natural...
Article
Full-text available
Tree diversity and composition in Amazonia are known to be strongly determined by the water supplied by precipitation. Nevertheless, within the same climatic regime, water availability is modulated by local topography and soil characteristics (hereafter referred to as local hydrological conditions), varying from saturated and poorly drained to well...
Chapter
Mauritius was one of the last places on Earth to be colonized by humans offering one of the most complete history of what native species occurred originally and what was lost, when, and why. This situation can therefore serve as a laboratory to study human impacts in the current age of human-driven species extinction. Mauritius is also one of the m...
Chapter
Pathogenic micro‐organisms of crops can be responsible for epidemics with a high socio‐economic impact. Herbaria in natural history collections are sources of information for studying these epidemics: they cover the last 200 years, including the last wave of major agricultural changes, and complement the data from modern samples. More generally, mu...
Technical Report
Full-text available
IUCN Red List assessment of the Mauritius endemic tree Badula ovalifolia (Primulaceae), a Critically Endangered species that declined from only six adults in 1997, a few abundantly fruiting and producing viable seeds, to two adults by 2019. By 2021, the only wild sapling and seedling had also died. Meanwhile, two seedlings were produced and planted...
Chapter
Mauritius was one of the last places on Earth to be colonized by humans offering one of the most complete history of what native species occurred originally and what was lost, when, and why. This situation can therefore serve as a laboratory to study human impacts in the current age of human driven species extinction. Mauritius is also one of the m...
Article
Full-text available
Over the past decade, ancient genomics has been used in the study of various pathogens. In this context, herbarium specimens provide a precious source of dated and preserved DNA material, enabling a better understanding of plant disease emergences and pathogen evolutionary history. We report here the first historical genome of a crop bacterial path...
Chapter
Les collections naturalistes ont désormais acquis une place inédite dans la recherche scientifique. Constituées à l’origine par la systématique et la taxonomie, elles se révèlent aujourd’hui fondamentales pour répondre à diverses questions scientifiques et sociétales, aussi importantes qu’actuelles.Les collections naturalistes dans la science du XX...
Article
Frugivore loss has the potential to alter the regeneration of tropical hyperdiverse forests. However, no study has investigated tree diversity maintenance within old-growth protected forests on tropical oceanic islands where conservation stakes are considerable. In the Mascarenes, the largest frugivores including the Dodo went extinct after human c...
Article
Full-text available
en The invertebrate communities of Mauritius host a high degree of endemism, but are also imperilled by an array of factors, including invasive predators. Since their introduction in 1922, guttural toads (Sclerophrys gutturalis) have spread across the island and have been implicated in the decline of a number of endemic invertebrate species. In thi...
Article
Full-text available
Altered environments in urban areas are known to impact and change animal behaviour. In particular, artificial light at night (ALAN) affects behaviour across taxonomic groups, including reptiles. Geckos in the genus Phelsuma are predominantly diurnal, but some have been documented to alter their foraging behaviour from a diurnal to nocturnal activi...
Article
Full-text available
We present a taxonomic revision of the genus Jumellea (Angraecinae; Orchidaceae) in the Mascarenes based on morphological study and field observations. We examined 328 specimens mostly from the MAU, P and REU, and recognise nine species. We provide a key, morphological descriptions, distributions, habitats, phenologies and conservation assessments...
Article
Full-text available
Background: Asiatic Citrus Canker, caused by Xanthomonas citri pv. citri, severely impacts citrus production worldwide and hampers international trade. Considerable regulatory procedures have been implemented to prevent the introduction and establishment of X. citri pv. citri into areas where it is not present. The effectiveness of this surveillan...
Article
Here we describe Bulbophyllum mascarenense sp. nov., a new endemic species from the Mascarenes, and assess its conservation status. This taxon has previously been confused with B. nutans var. nutans and has also been erroneously identified in the Mascarenes as B. minutum auct. non Thouars, the latter a Malagasy endemic. Bulbophyllum mascarenense is...
Article
Species abundance distributions (SADs) characterise the distribution of individuals among species. SADs have rarely been explored on islands and the ecological processes shaping SADs are still not fully understood. Notably, the relative importance of disturbance regime in shaping plant SADs remains poorly known. We investigate the relative importan...
Article
Full-text available
Plant-pollinator mutualisms may be disrupted by alien ants. Such threats are likely to vary spatio-temporally and with other biological invasions, but these aspects are rarely studied. We examined a threatened island endemic scrambler (Roussea simplex, Rousseaceae) about a decade after its pollination by an endemic reptile was found to be disrupted...
Article
Full-text available
Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended database of forest plots with up-to-date taxonomy. We show that the species abundance distribution of Amazonia...
Article
Full-text available
While revising the genus Angraecum (Orchidaceae) for the Mascarenes, a new taxon endemic to Mauritius was identified and it is here described as Angraecum baiderae. More than 300 Angraecum specimens, including types, collected in the Mascarenes and Madagascar, and available at DBEV, G, K, KM, L, MARS, MAU, MO, P, REU, SEY, TEF, and TAN were studied...
Article
Full-text available
Flying foxes play keystone ecological roles in plant reproduction. Yet, they face numerous threats, including persecution for eating commercial fruits. This human-wildlife conflict has recently escalated to culling campaigns of a threatened flying fox on Mauritius. Finding non-lethal solutions to this human-wildlife conflict on the island is theref...
Article
Some taxonomically critical and poorly known taxa from the order Caryophyllales are discussed. Both molecular and morphological data suggest that the chorologically distant populations of Tribulocarpus dimorphanthus in Namibia and East Africa are not uniform. Consequently, a new combination for Tetragonia somalensis, previously described from East...
Article
Full-text available
Les espèces exotiques envahissantes, de par leurs impacts variés, constituent la plus grande menace pour les milliers de plantes insulaires actuellement considérées comme hautement menacées d'extinction. Parmi celles-ci, les perturbations des mutualismes plantes-pollinisateurs ont fait l'objet d'une attention accrue ces derniers temps. Une telle me...
Article
Full-text available
Les îles océaniques montagneuses sont souvent des points chauds d'espèces endémiques soumises à des impacts anthropiques forts et rapides qui entraînent une forte extinction et des taux de mise en danger élevés de leur milieu. Maurice, une île océanique de l'Océan Indien défend les taux d'extinction les plus élevés au monde par unité de zone terres...
Conference Paper
Full-text available
One of the most important and urgent global challenges facing and endangering humankind today is the rapid loss of biodiversity on which humans depend. This erosion of biodiversity is driven by often accelerating and interacting anthropogenic activities and must be remedied to. This extinction crisis is most acutely felt on oceanic islands, conferr...
Article
Oceanic islands harbour a disproportionately large share of extinct and endangered birds worldwide and up to about 6,800 highly threatened plants, stressing the urgency for conservation efforts there. However, effective conservation action can only be as sound as the ecological understanding on which it is based. Knowledge about the ecology of thre...
Article
Full-text available
The rising need for crop diversification to mitigate the impacts of climate change on food security urges the exploration of crop wild relatives (CWR) as potential genetic resources for crop improvement. This study aimed at assessing the diversity of CWR of the Indian Ocean islands of Mauritius and Rodrigues and proposing cost-effective conservatio...
Chapter
Rapid population growth and economic change on the tropical islands of Mauritius have led to one of the highest rates of urban build-out in the world. Pressure on many of the island’s natural features and resources increasingly risks further degradation to the environmental services that they provide to the country. Fourteen types of marine and ter...
Article
Human-wildlife conflicts (HWC) pose a growing threat to biodiversity worldwide and solutions can be as sound as the understanding of the HWC itself. Conservation biologists therefore must carefully examine their local situations to inform on which approach and strategies may be best. In this context, Mauritius implemented what may be the first mass...
Conference Paper
Full-text available
Many oceanic island plants are highly threatened with extinction and Mauritius holds its fair share with one of the most threatened biota worldwide and indeed the rarest species too. Although some conservation efforts on Mauritian plants are resulting in successful in-situ recovery, many endemic species, including some well-studied ones, continue t...
Conference Paper
Full-text available
Human-wildlife conflicts (HWC) pose a widespread and growing threat to biodiversity worldwide, prompting intensifying research efforts for solutions. Solutions, however, can be as sound as the understanding of the HWC itself, therefore requiring carefully examinations of local situations to inform mitigation strategies. In this context, Mauritius r...
Article
Full-text available
The taxonomy of perennial Sesuvium species in Africa has been poorly investigated until now. Previously five perennial species of Sesuvium were recognised in Africa (S. congense, S. crithmoides, S. mesembryanthemoides, S. portulacastrum, and S. sesuvioides). Based on the differing number of stamens, S. ayresii is accepted here as being distinct fro...
Article
Full-text available
Aim: To determine the role of regional forcing on plot-level species diversity and composition, and to quantify the relative importance of biogeographical and climatic factors in explaining woody plant diversity and composition at the local-, island- and archipelago-scale. Location: Forty-one tropical islands of the Indo-Pacific region from Madagas...
Article
Full-text available
Background: Over 10,000 island endemic angiosperms are highly threatened by extinction. Yet, few of these species have the temporal change in their range documented and quantified, particularly within a potentially informative context of a long period of botanical study. Aim: Here, we used Roussea simplex a mono-specific genus endemic to Mauritius,...
Article
Ethnopharmacological relevance The Mauritian endemic flora has been recorded to be used as medicines for nearly 300 years. Despite acceptance of these endemic plants among the local population, proper documentation of their therapeutic uses is scarce. This review aims at summarising documented traditional uses of Mauritian endemic species with exi...
Article
Human-wildlife conflicts pose a growing threat to many species worldwide and require increasingly innovative and multi-disciplinary resolutions. Because of their apparent simplicity and political appeal, lethal approaches like culling are often favoured, decisions to cull are typically poorly supported by scientific evidence and the limitations and...
Conference Paper
Full-text available
The Madagascar and Indian Ocean Islands Hotspot, comprising of Madagascar, the Comoros, the Mascarenes (Réunion, Mauritius and Rodrigues) and the Seychelles, harbours some 15,000 plant species, 12,000 of which are endemic. Despite, or perhaps because of, this huge diversity, the flora is only partially documented and floristic treatments are incomp...
Article
Full-text available
Past human influences on Amazonian forest The marks of prehistoric human societies on tropical forests can still be detected today. Levis et al. performed a basin-wide comparison of plant distributions, archaeological sites, and environmental data. Plants domesticated by pre-Columbian peoples are much more likely to be dominant in Amazonian forests...