Results 1 to 10 of about 454 (132)
Da Vinci's mischief: xylem conduits in the stems of woody plants do not furcate. [PDF]
New PhytolSummary The hydraulic architecture of plants is often modeled as a ‘furcating’ network, in which xylem conduits proliferate in number toward the stem apex, analogous to animal circulatory systems. Yet whether furcation actually occurs within woody stems remains untested, despite major implications for carbon costs and hydraulic efficiency.
Alemán-Sancheschúlz G +4 more
europepmc +2 more sources
Leaf Length Predicts Twig Xylem Vessel Diameter Across Angiosperms. [PDF]
Plant Cell EnvironABSTRACT As plants grow taller, increasing conductive pathlength imposes hydraulic resistance, challenging the maintenance of water transport to leaves. While tip‐to‐base conduit widening along the stem helps mitigate this resistance, theoretical models and empirical data suggest that stem widening alone is insufficient to fully compensate.
Rivera P, Anfodillo T, Olson ME.
europepmc +2 more sources
New records of a critically endangered shrew from Mexican cloud forests (Soricidae, Cryptotis nelsoni) and prospects for future field research [PDF]
Biodiversity Data Journal, 2018 The Nelson´s small-eared shrew, Cryptotis nelsoni (Merriam, 1895), is a critically endangered species, endemic to cloud forests in Los Tuxtlas, a mountain range along the Gulf of Mexico coast.
Lázaro Guevara +1 more
doaj +4 more sources
Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Umbo S +11 more
europepmc +2 more sources
Diversity of Freshwater Macroinvertebrate Communities in Los Tuxtlas, Veracruz, Mexico
DiversityThe objective of this work is to contribute to the knowledge of the freshwater macroinvertebrate communities of Los Tuxtlas, Veracruz, Mexico. For this region, there is only limited knowledge of its aquatic crustaceans and mollusks.
Francisco José Gómez-Marín +5 more
doaj +3 more sources
Liana community attributes in one of the northernmost neotropical rainforests
Botanical Sciences, 2022 Background: Lianas are an important woody component of tropical rain forests. We described and compared the composition, structure, and diversity of the liana community in one of the northernmost neotropical rain forests. Question: How much does this
Iván Leonardo Ek-Rodríguez +3 more
doaj +1 more source
Angiosperms, Los Tuxtlas Biosphere Reserve, Veracruz, Mexico [PDF]
Check List, 2009 The Los Tuxtlas Reserve has been heavily deforested and fragmented since the 1970’s. Although the floraof Los Tuxtlas has been described previously, most floristic lists come from the large forest reserve of the Los Tuxtlasfield station.
Mandujano, S. +4 more
doaj +4 more sources
Economía, Sociedad y Territorio, 2022 Los Tuxtlas es un territorio complejo en donde, por su proceso histórico, distintas dinámicas socioculturales originaron conflictos socioambientales.
Gilberto Manuel González Kuk +1 more
doaj +1 more source
Seasonal variation in the diversity of flowering orchids at Santa Catarina Lachatao, Oaxaca, Mexico
Botanical Sciences, 2020 Background: Orchidaceae represents around 7.1-8.52 % of the angiosperms known in the planet. In Mexico, orchids are the third family more diverse, and Oaxaca is the state with the highest richness in the country.
Arelee Estefanía Muñoz-Hernández +2 more
doaj +1 more source
Ecosistemas y Recursos Agropecuarios, 2014 El comportamiento alimentario de una tropa de monos aulladores existiendo en un fragmento de selva de 3.7 ha en extensión fue estudiado durante dos periodos de siete meses de duración, cada uno en 1994-1995 y en 1999-2000.
Héctor González-Picazo +3 more
doaj +1 more source