Results 21 to 30 of about 2,587 (196)

Variación estacional de la micoflora en la hojarasca de Nothofagus DombeyI

Revista del Museo de La Plata
Los organismos degradadores, hongos y bacterias, cumplen una función vital en los ecosistemas de bosque, manteniendo el reciclado de la materia. Aquellos actúan sobre los detritos vegetales y animales alimentando un proceso que conduce a la formación de ...
Irma J. Gamundi, Angelica M. Arambarri, Jorge Frangi, Horacio A. Spinedi   +3 more
doaj   +1 more source

Morfología y Anatomía del Ápice Caulinar de Nothofagus dombeyi (Nothofagaceae) a lo largo de un año Morfology and anatomy of the shoot apex of Nothofagus dombeyi (Nothofagaceae) along a year

Boletín de la Sociedad Argentina de Botánica, 2006
En el presente estudio se evaluó la posible variación anual de la morfología y la anatomía del ápice caulinar de coihue, Nothofagus dombeyi (Nothofagaceae). A partir de muestras tomadas a lo largo de un año calendario, se realizaron cortes longitudinales
Soledad García, Javier Puntieri, Gernot Vobis   +2 more
doaj   +1 more source

The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia

Journal of Avian Biology, Volume 2023, Issue 9-10, September/October 2023., 2023
Haematocrit, the proportion of blood comprising erythrocytes, is often used as a proxy of individual condition. Nestling haematocrit is influenced by several factors but ambient temperature is generally agreed as a key driver. It is unclear which day(s) in embryonic or nestling development are most influential in determining pre‐fledgling haematocrit ...
Joseph E. Badji-Churchill, Martje L. M. Birker, Maaike Versteegh, Tomás A. Altamirano, Rodrigo A. Vásquez, Jan Komdeur   +5 more
wiley   +1 more source

Correlated evolution in an ectomycorrhizal host–symbiont system

New Phytologist, Volume 238, Issue 3, Page 1215-1229, May 2023., 2023
Summary Mechanisms of diversification in fungi are relatively poorly known. Many ectomycorrhizal symbionts show preference for particular host genera or families, so host–symbiont selection may be an important driver of fungal diversification in ectomycorrhizal systems.
Laura G. van Galen, David A. Orlovich, Janice M. Lord, Andy R. Nilsen, Ludovic Dutoit, Matthew J. Larcombe   +5 more
wiley   +1 more source

Nonstructural carbohydrates predict survival in saplings of temperate trees under carbon stress

Functional Ecology, Volume 36, Issue 11, Page 2806-2818, November 2022., 2022
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nonstructural carbohydrates (NSCs) mediate plant survival when the plant's carbon (C) balance is negative, suggesting that NSCs could predict plant survival under C stress.
Frida I. Piper, Paulo Moreno‐Meynard, Alex Fajardo   +2 more
wiley   +1 more source

The role of nutritional impairment in carbon‐water balance of silver fir drought‐induced dieback

Global Change Biology, Volume 28, Issue 14, Page 4439-4458, July 2022., 2022
Declining silver fir trees show lower foliar concentrations of essential nutrients such as P, K, Cu and Ni than non‐declining trees. This nutritional impairment exacerbates and amplifies the negative effects of drought on tree functioning and growth, considering the relationship of tree nutritional status with water‐use efficiency and growth resilience
Ester González de Andrés, Antonio Gazol, José Ignacio Querejeta, José M. Igual, Michele Colangelo, Raúl Sánchez‐Salguero, Juan Carlos Linares, J. Julio Camarero   +7 more
wiley   +1 more source

Behavioural responses by a bumble bee to competition with a niche‐constructing congener

Journal of Animal Ecology, Volume 91, Issue 3, Page 580-592, March 2022., 2022
Nectar robbing by flower‐biting bumble bees constitutes ecological niche construction if robbing holes persist and intensify nectar competition experienced by non‐biting, bystander flower visitors. In response, bystanders can tolerate robbing, switch plant species or adopt robbing, perhaps partially compensating for exploitative competition associated ...
Nick M. Rosenberger, Marcelo A. Aizen, Rachel G. Dickson, Lawrence D. Harder   +3 more
wiley   +1 more source

Effects of livestock grazing on soil health and recovery of a degraded Andean Araucaria forest

Land Degradation &Development, Volume 32, Issue 17, Page 4907-4919, November 2021., 2021
Abstract Araucaria araucana is an iconic long‐lived endangered tree species native to Southern Chile and Argentina. Araucaria forests and soils provide a myriad of ecosystem benefits to local communities, which are threatened by increasing anthropic‐driven disturbances like fire and livestock overgrazing.
Oscar Crovo, Felipe Aburto, Clara da Costa‐Reidel, Francisco Montecino, Rolando Rodríguez   +4 more
wiley   +1 more source

Pollen morphology of Nothofagus (Nothofagaceae, Fagales) and its phylogenetic significance [PDF]

, 2016
Nothofagaceae (southern beeches) are a relatively small flowering plant family of trees confined to the Southern Hemisphere. The fossil record of the family is abundant and it has been widely used as a test case for the classic hypothesis that Antarctica,
Barreda, Viviana Dora, Fernández, Damián Andrés, Palazzesi, Luis, Santamarina, Patricio Emmanuel, Tellería, María Cristina   +4 more
core   +2 more sources

Low temperature responses of Nothofagus dombeyi and Nothofagus nitida, two evergreen species from south central Chile [PDF]

Tree Physiology, 2005
Nothofagus dombeyi (Mirb.) Blume and Nothofagus nitida (Phil.) Krasser are closely related evergreen trees native to south central Chile. Nothofagus dombeyi is a pioneer in habitats subject to high daytime irradiances and nighttime freezing temperatures and has a wider altitudinal and latitudinal distribution than N. nitida, which is restricted to more
Reyes-Diaz, M, Alberdi, M, Piper, F, Bravo, LA, Corcuera, LJ   +4 more
openaire   +4 more sources