Results 81 to 90 of about 358 (180)

The promise of digital herbarium specimens in large‐scale phenology research

New Phytologist, Volume 251, Issue 2, Page 617-624, July 2026.
Summary The online mobilization of herbaria has made tens of millions of specimens digitally available, revolutionizing investigations of phenology and plant responses to climate change. We identify two main themes associated with this growing body of research and highlight a selection of recent publications exemplifying: investigating phenology at ...
Natalie Iwanycki Ahlstrand, Richard B. Primack, Matthew W. Austin, Zoe A. Panchen, Christine Römermann, Abraham J. Miller‐Rushing   +5 more
wiley   +1 more source

Estructura y composición florística de un ecosistema forestal en Brillasol, parroquia García Moreno del cantón Cotacachi

Revista Científica Arbitrada Multidisciplinaria PENTACIENCIAS
El desgaste de la estructura y disminución de la diversidad forestal se encuentra relacionado con varias prácticas antrópicas que afectan directamente al bosque natural, como son: tala ilegal, degradación e incendios forestales. El estudio se realizó en la comunidad Brillasol, del cantón Cotacachi, a 1.935 msnm; el ecosistema pertenece a Bosque muy ...
Xavier Germán Valencia Valenzuela, Rolendio Bolívar Montenegro Verdugo, José Fernando Trejo Cuásquer, Luis Alberto Cachimuel Anguaya   +3 more
openaire   +1 more source

Bridging data silos to holistically model plant macrophenology

New Phytologist, Volume 251, Issue 2, Page 625-636, July 2026.
Summary Phenological response to global climate change can impact ecosystem functions. There are various data sources from which spatiotemporal and taxonomic phenological data may be obtained: mobilized herbaria, community science initiatives, observatory networks, and remote sensing.
Lizbeth G. Amador, Tadeo H. Ramirez‐Parada, Isaac W. Park, Susan J. Mazer, Aaron M. Ellison, Margaret O'Brien, Eric R. Sokol, Colin A. Smith, Charles C. Davis, Sydne Record   +9 more
wiley   +1 more source

Efecto del aprovechamiento forestal en la formación de madera en árboles remanentes de Abies religiosa

Maderas: Ciencia y Tecnología
El manejo forestal puede modificar la estructura y la calidad de la madera. En este estudio se evaluó el efecto de un aprovechamiento forestal sobre la formación de madera en árboles remanentes.
Fabiola Rojas-García, Armando Gómez-Guerrero, Teresa Terrazas, Angel Endara-Agramont, Genaro Gutiérrez-García, Valentín Reyes-Hernández, Gregorio Ángeles-Pérez, Bernardus de Jong   +7 more
doaj   +1 more source

Recuperación del estrato arbóreo de un ecosistema de alta montaña impactado por el fuego

Revista Mexicana de Ciencias Forestales, 2017
Con la finalidad de evaluar la recuperación ecológica de un ecosistema forestal de alta montaña, se compararon las estructuras florística y horizontal de la vegetación arbórea de dos zonas aledañas, una impactada por el fuego y otra no impactada.
José Israel López Martínez, Eduardo Javier Treviño Garza, Oscar Alberto Aguirre Calderón, Enrique Buendía Rodríguez, Juan Carlos Ramos Reyes   +4 more
doaj   +1 more source

Automated extraction of leaf mass per area from digitized herbarium specimens

New Phytologist, Volume 251, Issue 2, Page 896-908, July 2026.
Summary The digitization of vast herbarium collections has made millions of plant specimen images freely available online, which can now be used to generate phenotypic datasets of unprecedented scope. Here, we assess the potential of computer vision tools to automate the extraction of predicted leaf mass per area (LMApred) from digitized herbarium ...
Thais Vasconcelos, William N. Weaver, Aly Baumgartner, Zoë Bugnaski, James Boyko   +4 more
wiley   +1 more source

Reconstrucción del historial de incendios y estructura forestal en bosques mixtos de pino-encino en la Sierra Madre Oriental

Madera y Bosques, 2016
Los incendios forestales en México han tenido gran relevancia después de la temporada de incendios en 1998 debido a su contribución directa a la deforestación, el cambio en la estructura y composición del bosque. Además recientemente se considera su participación directa en el incremento de bióxido de carbono en la atmósfera.
Marco Aurelio González Tagle, Luitgard Schwendenmann, Javier Jiménez Pérez, Wibke Himmelsbach   +3 more
openaire   +4 more sources

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

New Phytologist, Volume 251, Issue 2, Page 811-829, July 2026.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White, Jeannine Cavender‐Bares, Charles C. Davis, J. Antonio Guzmán Q., Shan Kothari, Jorge M. Robles, José Eduardo Meireles   +6 more
wiley   +1 more source

Harnessing the benefits of herbarium specimen digitisation for inferring recent and ongoing plant extinctions

New Phytologist, Volume 251, Issue 2, Page 677-688, July 2026.
Summary Evidence for the ongoing biodiversity crisis rests on assessment of a small fraction of described species, with major knowledge gaps for most organisms, including plants. Here, we highlight how digitised herbarium specimens can be used to accelerate and improve estimates of recent and ongoing plant extinctions.
Aelys M. Humphreys, Diana O. Fisher, Naomi A. Witts, Daniele Silvestro, Alexandre Antonelli   +4 more
wiley   +1 more source

Tree stem methane emissions are regulated by site‐level biogeochemistry over species identity in Amazon floodplain forests

New Phytologist, Volume 251, Issue 1, Page 179-190, July 2026.
Summary Tree stems in Amazonian floodplains emit substantial methane (CH4), yet controls on emission variability remain unclear. Emissions span orders of magnitude between várzea (nutrient‐rich) and igapó (nutrient‐poor) forests and among trees, suggesting controls beyond flooding.
Holly R. Blincow, Niall P. McNamara, Dafydd M. O. Elias, Carla Gomez, Jack Lamb, Rodrigo Nunes de Sousa, Darlene Gris, Leonardo Pequeno Reis, Alison M. Hoyt, Sunitha Rao Pangala   +9 more
wiley   +1 more source