Results 11 to 20 of about 51,428 (179)

The frequency and importance of polyploidy in tropical rainforest tree radiations. [PDF]

open access: yesNew Phytol
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Schley RJ   +9 more
europepmc   +2 more sources

Biology and systematics of the New World Phyllocnistis Zeller leafminers of the avocado genus Persea (Lepidoptera, Gracillariidae) [PDF]

open access: yes, 2011
Four New World species of Phyllocnistis Zeller are described from serpentine mines in Persea (Family Lauraceae). Phyllocnistis hyperpersea, new species, mines the upper leaf surfaces of avocado, Persea americana Mill., and red bay, Persea borbonia (L ...
Davis, Donald, Wagner, David
core   +2 more sources

Una Acustemología de la Selva Tropical

open access: yesRevista Colombiana de Antropología, 2013
This text has the purpose of giving a voice to a sort of alternating reality, to a kind of resonant sensitivity I have found by way of anthropological research of the ecology of language, of music and acoustics. My hope is that when granting spaces to marginalized voices from where they can speak out, scream and sing, therefore anthropology could in ...
openaire   +3 more sources

Impactos en un bosque tropical ralo con paca en la selva amazónica sur del Perú

open access: yesRevista del Instituto de investigación de la Facultad de minas, metalurgia y ciencias geográficas, 2022
Debido a diversas actividades de extracción de recursos naturales, se generan impactos ambientales, en este caso el objetivo es analizar cuáles son estos impactos en un bosque tropical ralo con paca en la selva amazónica sur del Perú, los cuales pueden ser restaurados con medidas y procedimientos adecuados, lo cual parte de una metodología que ...
Marco Antonio Vásquez Flores   +1 more
openaire   +1 more source

Diversity and Abundance of Hymenopterous Parasitoids Associated with Anastrepha fraterculus (Diptera: Tephritidae) in Native and Exotic Host Plants in Misiones, Northeastern Argentina [PDF]

open access: yes, 2010
Some Major host species used by the tephritid fruit flies Anastrepha fraterculus (Wiede-mann) and Ceratitis capitata (Wiedemann), including Acca sellowiana (O. Berg) Burret, Campomanesia xanthocarpa O. Berg, Psidium guajava L.,
Aluja M.   +22 more
core   +1 more source

Productividad primaria neta en una selva tropical húmeda

open access: yesBotanical Sciences, 1991
Estudio realizado en la selva alta perennifolia de Los Tuxtlas, Veracruz, se estimó la producción primaria neta (PPN) a través del muestreo de la caída de hojarasca en una hectárea de selva, llevado a cabo durante tres años. La PPN fue de 10.6, 13.2 y 16.2 t ha -l año-1, respectivamente.
openaire   +3 more sources

Global analysis of threat status reveals higher extinction risk in tropical than in temperate bird sister species [PDF]

open access: yes, 2019
Given increasing pressures upon biodiversity, identification of species’ traits related to elevated extinction risk is useful for more efficient allocation of limited resources for nature conservation.
Reif, Jiří, Štěpánková, Klára
core   +2 more sources

Heidi Asbjornsen Associate Professor of Natural Resources, COLSA, travels to Costa Rica [PDF]

open access: yes, 2012
Experiential Student Learning and Collaborative Research: Understanding Tropical Ecosystem Response to Climate Change from Leaves to Landscapes. During January 2012, I traveled to Costa Rica to visit potential field sites for a future UNH J-term course ...
Asbjornsen, Heidi
core   +2 more sources

Open letter: The need for a site‐based biodiversity standard measuring and certifying impacts from nature‐based projects

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Despite growing investment in restoration, weak accountability and poor biodiversity monitoring mean many projects fail to achieve ecological recovery. The Global Biodiversity Standard (TGBS) offers a practical way to ensure that restoration finance delivers measurable gains for nature.
David Bartholomew   +254 more
wiley   +1 more source

Additions and corrections to the knowledge of the foliicolous lichen flora of Costa Rica : the genus Fellhanera, with notes on Bacidia pauciseptata [PDF]

open access: yes, 1997
This further contribution to the knowledge of the foliicolous lichen flora of Costa Rica provides a detailed account on the genus Fellhanera. In total, 25 species and five undescribed taxa are treated.
Lücking, Robert
core  

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