A5046954687- Plant and animal studies
- Plant Diversity and Evolution
- Ecology and Vegetation Dynamics Studies
- Plant and Fungal Species Descriptions
- Conservation, Biodiversity, and Resource Management
- Species Distribution and Climate Change
- African Botany and Ecology Studies
- Wildlife Ecology and Conservation
- Botany, Ecology, and Taxonomy Studies
- Pacific and Southeast Asian Studies
- Plant Pathogenic Bacteria Studies
- Amazonian Archaeology and Ethnohistory
- Geology and Paleoclimatology Research
- Mediterranean and Iberian flora and fauna
- Biological Control of Invasive Species
- Traditional and Medicinal Uses of Annonaceae
- Coastal wetland ecosystem dynamics
- Genomics and Phylogenetic Studies
- Geological formations and processes
- Plant Parasitism and Resistance
- Pleistocene-Era Hominins and Archaeology
- Ethnobotanical and Medicinal Plants Studies
- Forest ecology and management
- Genetic diversity and population structure
- Archaeology and ancient environmental studies
Mauritius Sugarcane Industry Research Institute
2016-2025
Universidade de São Paulo
2001-2025
Ministry of Agro Industry and Food Security
2015-2024
Universidade Cidade de São Paulo
2022
University of East Anglia
2003
Utrecht University
2003
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response environmental change, as very little is known about species. A focus on common may circumvent this challenge. Here we investigate abundance patterns using inventory data 1,003,805 trees with trunk diameters at least 10 cm across 1,568 locations
A comparative analysis of 23 populations the Brazil nut tree ( Bertholletia excelsa ) across Brazilian, Peruvian, and Bolivian Amazon shows that history intensity exploitation are major determinants population size structure. Populations subjected to persistent levels harvest lack juvenile trees less than 60 centimeters in diameter at breast height; only with a either light or recent contain large numbers trees. harvesting model confirms intensive over past century such recruitment is...
Insular communities are particularly vulnerable to anthropogenic extinctions and introductions. Changes in composition of island frugivore may affect seed dispersal within the native plant community, risking ecological shifts ultimately co-extinction cascades. Introduced species could potentially mitigate these risks by replacing functions extinct species, but conclusive evidence is lacking. Here, we investigate changes plant-frugivore interactions involving frugivorous birds, mammals...
ABSTRACT Seeds of the Brazilnut tree ( Bertholletia excelsa Humb. & Bonpl., Lecythidaceae) sustain one most important extractive industries in neotropical forests. Yet little is known about demography and seed dispersal ecology , particularly natural stands which have not been previously harvested. This study presents data on population density, spatial distribution, trees at a pristine stand located within Kayapó Indian Area southeastern Amazonia, Pará, Brazil. were primarily found...
Abstract Aim To determine the role of regional forcing on plot‐level species diversity and composition, to quantify relative importance biogeographical climatic factors in explaining woody plant composition at local‐, island‐ archipelago‐scale. Location Forty‐one tropical islands Indo‐Pacific region from Madagascar Hawai‘i Island. Methods We analysed communities located across 113 plots, 41 19 archipelagos. used generalized linear mixed‐effects models dissimilarity island archipelago scale...
Two new records of Jumellea for the island Mauritius (Indian Ocean), J. exilis and rossii are reported from incorrectly attributed past collections. Sampling over last four decades on recorded only a few localities exilis, while is known single collection. Recent surveys confirm that very rare, qualifying as Critically Endangered according to IUCN Red List Criteria, should be considered probably Extinct. An updated key provided. Threats besetting species other orchids in general discussed...
Hong-Wa, C., M. W. Callmander & C. Baider (2014). Taxonomy and conservation of the genus Noronhia Thouars (Oleaceae) in Mauritius. Candollea 69: 157–163. In English, English abstract. The (Oleaceae), formerly known only from Madagascar Comoros, also occurs Continental Africa Mascarene Islands. We present a taxonomic overview Two new combinations are proposed for Mauritian endemic species previously recognized Chionanthus L. described Olea L.: macrophylla (Baker) Hong-Wa Callm. obovata while...
A survey was conducted to determine the density and species composition of viable seeds buried in four stands a tropical montane forest at Parque Estadual Intervales, Brazil. The objective understand: (1) how numbers soil seed bank change as regrows, (2) such changes affect available for regeneration if forests different ages are cut down. In each stand (5, 18, 27-yr-old mature forest), 57 samples were collected (0-2.5 2.5-5 cm deep). Viable herbaceous ranged between 11,003 seeds. m-2...
Durante a regeneração da floresta tropical, após perturbações naturais ou antrópicas, o banco de sementes do solo está envolvido no estabelecimento grupos ecológicos e na restauração riqueza espécies lenhosas. Para análise composição um trecho Atlântica madura, Sudeste Brasil, foram coletadas 57 amostras solo, distribuídas aleatoriamente em 2 ha, totalizando 28.500 cm³ coletado. período 17 meses germinaram 497 sementes, 65% entre 0 2,5 cm profundidade, 872 sementes/m². O dessa...
Abstract Restoration science is a relatively young branch of ecology that growing in importance owing to the sheer scale and trend habitat degradation worldwide range strong benefits it seen potentially carry. Although spearheaded mainly by developed countries, its usefulness at least for conservation biodiversity may be greatest developing world. Here we examine how Mauritius, island nation regarded as well equipped among countries terms access restoration science, using inform ecological...
Biological invasions constitute a major threat to biodiversity. However, while the impact of invasive alien animals on native biota is often unambiguous, impacts plants (IAP) appear be considerably less severe and, at times, more debatable. Invasion by co-occur with other drivers habitat change such that assessing IAP independently these factors may difficult. Generalisations can misleading, because studies reveal different responses presence IAP. Therefore, there need understand general...
Abstract Question How did the native and alien woody plant communities of protected lowland wet forests a tropical oceanic island change in presence understorey invasive plants over medium (21–27 yrs) longer term (68 yrs)? Location Bel Ombre, Brise Fer Macchabé Black River Gorges National Park ( BRGNP ), Mauritius (20°22′10″ – 20°28′17″ S, 57°24′45″ 57°27′12″ E). Methods Random replicated vegetation plots were sampled two forest areas whose surveyed 21 27 yrs previously, another similar that...
SUMMARY Rapid population growth and economic change on the tropical islands of Mauritius have led to one highest rates urban build-out in world. Pressure many island's natural features resources increasingly risks further degradation environmental services that they provide country. Fourteen types marine terrestrial environmentally sensitive areas (ESAs) are critical nation's sustainable development. Twelve these ESA currently at risk degradation, owing their spatial proximity built-up...
Tree diversity and composition in Amazonia are known to be strongly determined by the water supplied precipitation. Nevertheless, within same climatic regime, availability is modulated local topography soil characteristics (hereafter referred as hydrological conditions), varying from saturated poorly drained well‐drained potentially dry areas. While these conditions may expected influence species distribution, impacts of on tree remain understood at whole Amazon basin scale. Using a dataset...
In the light of currently increasing drought frequency and water scarcity on oceanic islands, it is crucial for conservation threatened insular vertebrates to assess how they will be affected. A 4000 yr old fossil assemblage in Mare Aux Songes (MAS), southwest Mauritius, Mascarene Islands, contains bones 100 000+ individual vertebrates, dominated by two species giant tortoises Cylindraspis triserrata C. inepta, dodo Raphus cucullatus, 20 other vertebrate ( Rijsdijk, Hume, Bunnik, Florens,...
Abstract The phytophagous beetle family C urculionidae is the most species‐rich insect known, with much of this diversity having been attributed to both co‐evolution food plants and host shifts at key points within early evolutionary history group. Less well understood extent which patterns use vary or among related species, largely because technical difficulties associated quantifying this. Here we develop a recently characterized molecular approach quantify diet between two closely species...