Results 21 to 30 of about 65,683 (175)

Riqueza, diversidad y estado de conservación de las especies de plantas (Spermatophyta) endémicas de Costa Rica

Cuadernos de investigación UNED
El endemismo es clave para la conservación biológica, ya que estas especies poseen distribuciones restringidas y poblaciones pequeñas, lo que las hace altamente vulnerables a la extinción.
Silvia Lobo-Cabezas
doaj   +1 more source

Nuevas localidades de Robinsonia (Rhetinodendron) berteroi R.W. Sanders, Stuessy & Martic. (Asteraceae) encontradas en revisión del herbario del Jardín Botánico Nacional, Chile

Gayana: Botanica, 2022
Se citan cuatro nuevas localidades para Robinsonia (Rhetinodendron) berteroi, en la isla Robinson Crusoe, Chile, documentadas mediante colecciones de herbario hechas por la bióloga Marcia Ricci en los años 1988 y 1990 depositadas en el herbario del ...
Patricio Novoa, Marcelo Baeza, Arón Cádiz-Véliz, Marcia Ricci   +3 more
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Notas sobre la flora de la Península de Yucatán VII: Boehmeria cylindrica (Urticaceae), un nuevo registro para la región

Botan‪ical Sciences, 2007
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José Luis Tapia, Germán Carnevalli-Fernández-Concha, Rodrigo Duno-de Stefano, Ivón M. Ramírez-Morillo, Silvia Hernández-Aguilar, Lilia Lorena Can-Itza   +5 more
doaj   +1 more source

Niche‐tracking as a collecting method: Habitat‐targeted search strategies for taxon‐focused botany

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity science depends on more than collecting plants—it depends on how we search for them. Although GPS and digital maps have transformed fieldwork, they can also encourage repeated visits to the same easy‐to‐access sites, leaving other habitats and populations unknown to science.
Lucas C. Marinho, Isabela M. Waga, Domingos Cardoso   +2 more
wiley   +1 more source

The PhenoChange network protocol for monitoring leaf phenology in tropical dry ecosystems using phenocameras

Methods in Ecology and Evolution, EarlyView.
Abstract Tropical dry ecosystems (TDEs) cover half of the tropics and play a key role in global carbon dynamics. TDEs present distinct canopy and ground layers that often exhibit contrasting phenological patterns. On‐the‐ground observations of phenology by the human eye, though valuable, may suffer from limited temporal resolution and observer biases ...
Desirée Marques Ramos, Francisco Maiato P. Gonçalves, Magna Soelma de Moura, Mário Marcos do Espírito‐Santo, Ítalo Antônio Cotta Coutinho, Vera De Cauwer, Bruna de Costa Alberton, Jonathan Muledi, Casey M. Ryan, Manuel Jundo Cachissapa, Millena C. N. Santana, Gabriel Ileni K. Uusiku, Antonia Mirelle Lopes Marques, Frances O'Leary, Renata D. Françoso, Nattália do Prado Neves, John L. Godlee, Maria Maraíza P. Santos, Leena Naftal, David Nkulu, Mathew Williams, Albert B. Phillimore, Andrew D. Richardson, Matúš Seči, Milcíades Chicomo, Natasha Wesely, David T. Milodowski, Sam B. Harrison, Ludovica Oddi, Consolata Siniscalco, Fabrícia Conceição M. Mota, Jurandy Almeida, Ricardo da Silva Torres, Mario B. B. Siqueira, Kyle G. Dexter, Leonor Patricia C. Morellato   +35 more
wiley   +1 more source

Forest edges buffer effects of agricultural management on bee–plant interaction networks

Ecological Entomology, EarlyView.
Agricultural management effects: Organic and conventional crop margins host similar bee and plant species, but network structure differs: organic farms exhibit higher interaction diversity, conventional farms higher connectance. Role of forest edges: Native forest edges stabilize bee–plant networks by providing continuous floral resources and suitable ...
Samantha Marx de Castro, Cauê Nagatani, Vania Nobuko Yoshikawa, Franciny Yuko Urushima, Kelli dos Santos Ramos, Guaraci Duran Cordeiro, Maria Santina de Castro Morini   +6 more
wiley   +1 more source

Social bees can enhance the persistence of plant–bee interactions during seasonal changes in seasonally dry tropical forests

Ecological Entomology, EarlyView.
Social bees, especially Meliponini, formed a persistent core that maintained plant–bee interactions across both dry and green seasons in the Caatinga. Persistence was not linked to broader diets; social bees used fewer plant species, despite availability, indicating selective tracking of temporally concentrated floral resources.
Ana Letícia S. Lima, Cândida M. L. Aguiar, Celso F. Martins, Emanuelle L. S. Brito   +3 more
wiley   +1 more source

Herbarios: Centros de información

Entornos, 1988
Un herbario es un centro de información que guarda muestras disecadas de la flora de una región o país y proporciona datos de tipo ecológicos tales como: épocas de floración y fructificación, diversidad de la flora, tipos de formación ecológicas, estado de la vegetación, etc.
openaire   +1 more source

Fletcheria gen. nov. (Ralfsiales, Phaeophyceae): A new crustose brown algal genus clarifying evolutionary relationships of Ralfsia pacifica

Journal of Phycology, EarlyView.
Abstract The genus Ralfsia was historically broadly circumscribed but has recently undergone significant taxonomic revision. Based on molecular data, a restricted Ralfsia sensu stricto was delineated that had many species reassigned to new genera and families.
Viviana Patricia Reyes‐Gómez, Manuela I. Parente, Daniel León‐Alvarez, Erasmo C. Macaya, Gary W. Saunders   +4 more
wiley   +1 more source

RESEÑA HISTÓRICA, DESARROLLO Y ACTUALIDAD DEL HERBARIO DE LA PONTIFICIA UNIVERSIDAD JAVERIANA (HPUJ)

Universitas Scientiarum, 2007
Se presenta una reseña histórica sobre el origen, consolidación, actualidad y perspectivas del Herbario de la Pontificia Universidad Javeriana (HPUJ). Entre los sucesos más importantes se destaca la inscripción en el Index Herbariorum bajo el acrónimo ...
M. Alvear-Pacheco, M. León-Gómez, M. Diazgranados-Cadelo, H. Bernal-Malagón   +3 more
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