Results 51 to 60 of about 681,132 (292)

The family "Thelypteridaceae" in Europe [PDF]

open access: yes, 1983
Thelypteridaceae are mainly tropical ferns, the total number of species is about one thousand. The five European species represent five different groups, each of which has recently been accorded generic status.
Holtumm, R.E.
core   +2 more sources

The potential of seedbank digital information in plant conservation

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Seedbanks are vital for biodiversity conservation, but their potential remains underutilised due to a limited understanding of the intraspecific genetic diversity they hold. By leveraging digitised data associated with seedbank collections, such as sampling locations, number of maternal plants and seed traits, we can attempt the estimation of genetic ...
Roberta Gargiulo   +23 more
wiley   +1 more source

Cambios estacionales en los ensambles de aves en un ecotono bosque-estepa del norte de Patagonia [PDF]

open access: yes, 2018
Estudiamos las variaciones estacionales en una comunidad de aves que habitan el ecotono bosque-estepa del norte de Patagonia. Analizamos los cambios en la riqueza de especies, la composición de especies y la abundancia total, y a nivel de las especies ...
Cueto, Víctor   +1 more
core  

Synergistic efforts in specimen digitisation, curation and cataloguing of Brazil's megadiverse flora and funga

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The advancement of digital technologies has brought a rapid global information exchange, impacting all areas of our lives. This also applies to science. Knowledge, conservation and scientific innovation on global biodiversity are being strengthened and disseminated at unprecedented scales.
Ana Flávia Alves Versiane   +9 more
wiley   +1 more source

The herpetofauna of the cloud forests of Honduras [PDF]

open access: yes, 2010
The cloud forest amphibians and reptiles constitute the most important herpetofaunal segment in Honduras, due to the prevalence of endemic and Nuclear Middle American-restricted species.
McCranie, James R., Wilson, Larry David
core  

Seed morphology of two distinct european species of Erica L. (Ericaceae) [PDF]

open access: yes, 2008
Seed morphology of two distinct european species of Erica L. (Ericaceae). Erica spiculifolia is a distinct species within the genus Erica, considered by some authors as part of a monospecific genus: Bruckenthalia. The second species studied, E. umbellata,
Fagúndez, Jaime, Izco, Jesús
core   +4 more sources

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

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
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

Antología especial

open access: yes, 2023
Source: Cote : LCJ-AA ...
Luis, Contreras Jara   +1 more
openaire   +2 more sources

The "Dryopteris dilatata complex in Macaronesia and the Iberian Peninsula [PDF]

open access: yes, 1983
Diploid and tetraploid species of the Dryopteris dilatata complex are found in Spain and Portugal. In an attempt to determine the relationships between species the cytology of both wild and synthetised hybrids has been investigated, and the results ...
Gibby, M.
core   +2 more sources

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, EarlyView.
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

Home - About - Disclaimer - Privacy