A5039456761- Geology and Paleoclimatology Research
- Archaeology and ancient environmental studies
- Environmental and Cultural Studies in Latin America and Beyond
- Botany and Geology in Latin America and Caribbean
- Scarabaeidae Beetle Taxonomy and Biogeography
- Ecology and Vegetation Dynamics Studies
- Botany, Ecology, and Taxonomy Studies
- Pleistocene-Era Hominins and Archaeology
- Tree-ring climate responses
- Species Distribution and Climate Change
- Coastal wetland ecosystem dynamics
- Plant and soil sciences
- Lichen and fungal ecology
- Plant Taxonomy and Phylogenetics
- Plant Diversity and Evolution
- Plant and animal studies
- Conservation, Biodiversity, and Resource Management
- Mediterranean and Iberian flora and fauna
- Archaeology and Natural History
- Pacific and Southeast Asian Studies
- Rangeland and Wildlife Management
- Isotope Analysis in Ecology
- Agroforestry and silvopastoral systems
- Aeolian processes and effects
- Geological and Tectonic Studies in Latin America
El Colegio de la Frontera Sur
2015-2024
Instituto Tecnológico de Chetumal
2012-2018
University of Amsterdam
1993-1997
Clinique Victor Hugo
1994
A 5.45-m core from Lake Peten-Itza, lowland Guatemala, contains a near-complete record of Holo cene sedimentation. The age-depth relationship for the is based on AMS 14 C dating terrestrial wood fragments and provides reliable chronology in this karst region where hard-water lake error has typically confounded sediment geochronology. In basal part sequence, pollen Moraceae-Urticaceae group dominate, indicating presence widespread tropical forest during early Holocene (c. 8600-5600 yr BP)....
Abstract Palynological studies document forest disappearance during the late Holocene in tropical Maya lowlands of northern Guatemala. The question remains as to whether this vegetation change was driven exclusively by anthropogenic deforestation, previously suggested, or it partly attributable climate changes. We report multiple palaeoclimate and palaeoenvironment proxies (pollen, geochemical, sedimentological) from sediment cores collected Lake Petén Itzá, Our data indicate that earliest...
Significance The rise of complex societies and sustainable land use associated with urban centers has been a major focus for anthropologists, geographers, ecologists. Here we present quantitative assessment the agricultural, agroforestry, water management strategies inhabitants prominent ancient Maya city Tikal, how their practices effectively sustained low-density population many centuries. Our findings also reveal, however, that productive landscape surrounding managed to brink its...
Research Article| June 01, 2010 Recovery of the forest ecosystem in tropical lowlands northern Guatemala after disintegration Classic Maya polities Andreas D. Mueller; Mueller * 1Geological Institute, Swiss Federal Institute Technology ETH, Sonneggstrasse 5, 8092 Zurich, Switzerland *E-mail: andreas.mueller@erdw.ethz.ch. Search for other works by this author on: GSW Google Scholar Gerald A. Islebe; Islebe 2El Colegio de la Frontera Sur, Unidad Chetumal Herbario, Chetumal, AP 424 Quintana...
Chironomids, diatoms and microcrustaceans that inhabit aquatic ecosystems of the Northern Neotropics are abundant diverse. Some species highly sensitive to changes in water chemical composition trophic state. This study was undertaken as a first step developing transfer functions infer past environmental conditions lowland Neotropics. Bioindicator abundances were related multiple variables exploit their use paleoenvironmental indicators. We collected analyzed surface sediment samples from 63...
Por medio de análisis polen y elementos geoquímicos, un núcleo sedimento 1.5 m profundidad, se identificaron cambios en la historia vegetal ambiental los últimos 3200 años Laguna Cementerio ubicada el poblado Xcalak, Quintana Roo. Los composición abundancia Rhizophora mangle, Conocarpus erectus, Avicennia germinans Laguncularia racemosa permitieron inferir variabilidad hidrológica. Al inicio cal AP presentaron condiciones húmedas, vegetación dominante era selva, compuesta principalmente por...
Summary This paper describes structural change and damage to the natural tree vegetation in Dr Alfredo Barrera Marín Botanical Garden, following Hurricane Gilbert September, 1988. Post‐hurricane data were compared with pre‐hurricane from same plots, focusing mainly on composition structure. Near complete defoliation of trees plants understorey occurred average foliage loss was estimated be 4.5 t/ha. The density decreased by 33%, basal area 12%. Small diameter accounted for great majority...
Abstract A remarkably long period of Northern Hemispheric cooling in the 6th century CE, which disrupted human societies across large parts globe, has been attributed to volcanic forcing climate. major tropical eruption 540 CE is thought have played a key role, but there no consensus about source volcano date. Here, we present evidence for El Chichón southern Mexico as most likely candidate, based on refined reconstruction volcano’s history. new chronological framework, derived from distal...
Here, we use 30 long-term, high-resolution palaeoecological records from Mexico, Central and South America to address two hypotheses regarding possible drivers of resilience in tropical forests as measured terms recovery rates previous disturbances. First, hypothesize that faster are associated with regions higher biodiversity, suggested by the insurance hypothesis. And second, is due intrinsic abiotic factors location specific, thus presently displaying persistence current climatic...