Results 111 to 120 of about 15,785 (257)

Leveraging machine learning and citizen science data to describe flowering phenology across South Africa

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1132-1144, July 2026.
Recent shifts in flowering times are an index of, and a response to, human driven climate change. However, most information on these flowering changes is heavily skewed to the northern hemisphere. This imbalance limits our understanding of how climate change is affecting ecosystems, including the mismatches of flowering times between species, increased
Ross D. Stewart   +3 more
wiley   +1 more source

Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1304-1321, July 2026.
Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski   +2 more
wiley   +1 more source

Life after herbarium digitisation: Physical and digital collections, curation and use

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1029-1041, July 2026.
Societal Impact Statement Collections of dried plant specimens (herbaria) provide an invaluable resource for the study of many areas of scientific interest and conservation globally. Digitisation increases access to specimens and metadata, enabling efficient use across a broad spectrum of research.
Alan James Paton   +39 more
wiley   +1 more source

Assessing current curation, identification and digitisation practices in herbaria: Results from a global survey

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1175-1194, July 2026.
The value of herbarium specimens depends largely on the accuracy and accessibility of the data captured, which is dependent on curation practices. Previous studies have shown high levels of misidentification in collections, which become more problematic with increased access.
Celia C. Aceae   +3 more
wiley   +1 more source

Estructuras de datos dinámicas. Estructuras de árbol

open access: yes, 2016
The objective of defining a data type and therefore specify that certain variables are of this type, is that the range of values taken by these variables and therefore its storage pattern is set once and for all. Consequently, it is said that the variables declared in this way are static.
openaire   +1 more source

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1223-1237, July 2026.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger   +4 more
wiley   +1 more source

Estructuras discursivas

open access: yes, 2018
Para entender el análisis de discurso empleado en este libro, se deben tener en cuenta algunas observaciones breves correspondientes a las estructuras discursivas (ACD). Estas representan e involucran los grados acordes con las estructuras y la constitución de lo entendido por paraverbal, retórica, sintagmas, semánticas y fonologías, entre otros, cuyo ...
Sánchez-Mendoza, Vanessa   +4 more
openaire   +1 more source

Digitising biological collections to advance National Species Inventories: A case study from the flora of Chile

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1210-1222, July 2026.
In response to Chile's public policy to establish a national biodiversity inventory and monitoring system, we launched the HerbarioDigital.cl portal. We have digitised over 120,000 specimens representing more than 3,900 species from two Chilean herbaria, integrating them through a curated local taxonomic index.
Ricardo A. Segovia   +5 more
wiley   +1 more source

La gestión del desarrollo local con un enfoque integrador

open access: yesRetos de la Dirección, 2007
Se desarrolló una concepción teórico-metodológica que permite establecer un procedimiento para la implantación de novedosas tecnologías de dirección, en la gestión del desarrollo local en Cuba. La aplicación integral de esta concepción imprime una nueva
Ramón González Fontes
doaj  

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