A5050726712- Coastal wetland ecosystem dynamics
- Plant responses to water stress
- Ecology and Vegetation Dynamics Studies
- Coastal and Marine Dynamics
- Marine and coastal plant biology
- Plant Water Relations and Carbon Dynamics
- Plant and animal studies
- Mexican Socioeconomic and Environmental Dynamics
- Geography and Environmental Studies in Latin America
- Tree Root and Stability Studies
- Coastal and Marine Management
- Aeolian processes and effects
- Regional Development and Innovation
- Plant Parasitism and Resistance
- Geological and Geophysical Studies
- Tree-ring climate responses
- Plant and Fungal Species Descriptions
- Animal Ecology and Behavior Studies
- Wildlife Ecology and Conservation
- Legume Nitrogen Fixing Symbiosis
- Plant Stress Responses and Tolerance
- Forest ecology and management
- Oil Palm Production and Sustainability
- Land Use and Ecosystem Services
- Mediterranean and Iberian flora and fauna
Instituto de Ecología
2015-2024
José Benito Vives de Andréis Marine and Coastal Research Institute
2024
Universidad de Oriente
2024
Marqués de Valdecilla University Hospital
2003-2016
Universidad Nacional Autónoma de México
2015
Universidad Veracruzana
2015
Center for Scientific Research and Higher Education at Ensenada
2015
Hospital General Universitario de Ciudad Real
2012-2014
Universidad de Cantabria
2012
Dokuz Eylül University
2006
Identifying factors that may be responsible for regulating the size of animal populations is a cornerstone in understanding population ecology. The main are thought to influence either resources (bottom‐up), or predation (top‐down), interspecific competition (parallel). However, there highly variable and often contradictory results regarding their relative strengths influence. These varied interpreted as indicating “shifting control” among three factors, complex, nonlinear relationship...
En este trabajo se revisó la información bibliográfica existente sobre los manglares de México. El primer tema analizado es biogeografía, describiendo diversidad y composición las dos costas del país, así como límites su distribución. La distribución, fisonomía comunidades manglar están influidas por cambios latitudinales en temperatura precipitación, pero localmente dependen geomorfología, el substrato, salinidad, inundación relieve. Los estudios al presente sugieren que interacciones...
The coastal zone is in a critical state worldwide, due to the loss and fragmentation of its ecosystems. Much this caused by long-term anthropic local, regional, or global actions, which drive squeeze processes. Most criteria evaluate effects are focused on merely identifying effect zone. Here, we propose framework manage (identify, analyze, quantify, tackle) squeeze. This DESCR examines relations between Drivers, Exchanges, States environment subsequently chronic, negative Consequences...
Observations on root pressure were made for 109 species in Costa Rica, Mexico, and Florida during the rainy season. Native naturalized species, as well a few outdoor cultivated specimens, used. Predawn guttation was observed 15 species. pressure, evidenced by xylem sap exudation from cut stems, 61 Root pressures, measured with bubble manometer, ranged 2 kPa to maximum of 148 Cissus (Vitaceae). A broad range climbing monocotyledons, dicotyledons, one fern (Lygodium) displayed pressure....
ABSTRACT Xylem sap salinity and conductivity were examined in two mangrove ecosystem tree species . For Avicennia germinans , extracted xylem osmotic potentials ranged from −0.24 to −1.36 MPa versus −0.14 −0.56 for Conocarpus erectus. of did not vary potential between sites nor predawn midday. In values more negative at midday than predawn, also hypersaline hyposaline sites. After removing embolisms, specific ( K s ) was measured as a function the artificial perfusion. both lowest values,...
Over the last several decades, distribution of black mangrove Avicennia germinans in Gulf Mexico has expanded, part because it can survive occasional freeze events and high soil salinities characteristic area. Vessel architecture may influence chilling salinity tolerance. We surveyed populations A. throughout to determine if vessel was linked field environmental conditions. measured density, hydraulically weighted diameter, potential conductance capacity, maximum tensile fracture stress. At...
The restoration of mangroves has gained prominence in recent decades. Hydrological rehabilitation been undertaken to connect impaired with the sea, lagoons or estuaries. Because mangrove hydrodynamics occurs on surface and interstitial spaces sediment, we propose determine hydrological flow paths restore regimes mangroves. were determined through a micro basin analysis based microtopographic data generate digital elevation model. Applying this methodological approach, hydrology an area...
Abstract Aim Tree crowns determine light interception, carbon and water exchange. Thus, understanding the factors causing tree crown allometry to vary at stand level matters greatly for development of future vegetation modelling calibration remote sensing products. Nevertheless, we know little about large‐scale variation determinants in tropical allometry. In this study, explored continental scaling exponents site‐specific assessed their relationships with environmental stand‐level variables...
Summary Sherwin Carlquist established xylem vessel indices and parameters to quantify the degree of mesomorphy or xeromorphy exhibited by plants. These were developed as part efforts establish a quantitative approach plant anatomy developing fields functional ecological anatomy. In this paper, we discuss origin such their merits demerits in light current theory practice. Vessel diameter, element length, density (vessels/mm 2 ) remain relevant anatomical characters that describe function...
Vegetation stripes alternating with bare areas appear in some arid lands as a consequence of the redistribution rainwater by sheet flow. The borders between and are ecotones (one up-slope one down-slope earch arc) very open scrub densely vegetated patch.(...) Here hypothesis arc migration is tested investigating distribution seedlings adults woody species their cover within arcs. studied were Prosopis glandulos Flourensia cernua. was recorded 600-m × 2-m transect belt perpendicular to...
We examined the concept that high vessel number provides xylem safety and also show under certain circumstances may increase rather than decrease probab ility of mortality. The independent variable was vessels per organ (redundancy). dependent death for which we set three thresho1ds catastrophic runaway embolism (50, 75 90% embolisrn). Results were calculated based upon probability any particu1arvesse1would become embolized ( P ). When modeled p below thresho1d, benefits (decreased death)...
The fall of four morphological components Avicennia germinans L. was measured at monthly intervals along a transect in monospecific mangrove near the inlet Laguna de MecoacAn, Tabasco, Mexico. Estimated mean total annual litter 614.4 g.m-2 yr-1. Seasonal fluctuations water level, insolation, temperature and evaporation were highly intercorrelated summarized principal component axis that explains 82 percent their variability. results suggest A. responds to environmental variables already...
Although several damaged mangrove ecosystems have been restored worldwide, so far, it has not established whether a system regains all the functional properties of preserved mangroves. This study measured nitrogen fixation as an indicator disturbed mangroves that were reforested or naturally regenerated fully recovered from this disturbance at level. Rates for one year in impaired, preserved, reforested, and dominated by black ( Avicennia germinans ). There was no significant difference...
Background and AimsRhizophora species of mangroves have a conspicuous system stilt-like roots (rhizophores) that grow from the main stem resemble flying buttresses. As such, development rhizophores can be predicted to important for effective transmission dynamic loads top tree ground, especially where substrate is unstable, as often case in habitats Rhizophora typically grow. This study tests hypothesis rhizophore architecture R. mangle co-varies with their proximity stem, size crown...
Salinity tolerance in plant species varies widely due to adaptation and acclimation processes at the cellular whole-plant scales. In mangroves, extreme substrate salinity induces hydraulic failure ion excess toxicity reduces growth survival, thus suggesting a potentially critical role for physiological salinity. We tested hypothesis that osmotic adjustment, key type of plasticity mitigates shock, would take place coordination with declines conductance common garden experiment using saplings...
ABSTRACT The variation in leaf mass per area, nutrients (% carbon, nitrogen and phosphorus), the allometric relation between tree height diameter of black mangrove, Avicennia germinans, were explored nine mangrove forests similar environments along a 5° latitudinal gradient central region Gulf Mexico, as indicated by southward increase temperature precipitation. There was no correlation or phosphorus content latitude. Leaf area carbon positively correlated with latitude negatively annual...