Results 101 to 110 of about 46,777 (265)

Un género y cinco especies nuevas de palmas

open access: yesCaldasia, 1940
Parascheelea Dugand gen. nov. / Parascheelea anchistropetala Dugand sp. nov. / Dictyocaryum globiferum Dugand sp. nov. / Catoblastus andinus Dugand sp. nov. / Catoblastus Cuatrecasasii Dugand sp. nov. / Astrocaryum Cuatrecasanum Dugand sp. nov.
Dugand Armando
doaj  

Tracking the impact of bottom trawling on benthic habitat status

open access: yesConservation Biology, EarlyView.
Abstract Bottom trawling is the most widespread physical disturbance to marine benthic habitats, yet broadscale assessments of its impact remain limited. We developed a quantitative framework to evaluate trawling effects on benthic habitats at broad spatial scales based on the sentinels of seabed (SoS) indicator.
Maider Plaza‐Morlote   +10 more
wiley   +1 more source

Evaluación de especies forrajeras nativas e introducidas bajo condiciones del altiplano central mexicano

open access: yesRevista Mexicana de Ciencias Pecuarias, 1990
EI estudio se efectuó en el CE Vaquerías localizado en el km 8 de la carretera Ojuelos Lagos de Moreno, municipio de Ojuelos, Jalisco.
Pedro Jurado Guerra   +3 more
doaj  

Coinvasional disruptions to island pollinator networks

open access: yesConservation Biology, EarlyView.
Abstract Biological invasions can adversely affect pollinator diversity by threatening the maintenance of animal‐pollinated plant communities. Although most studies have examined single invasive species, accelerating species introductions driven by global trade highlight the need to understand how multiple co‐occurring invaders jointly influence ...
Marta Quitián   +5 more
wiley   +1 more source

Evaluating the use of taxonomy in the IUCN Red List

open access: yesConservation Biology, EarlyView.
Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett   +8 more
wiley   +1 more source

El genero Morpho en Colombia: II. Clave taxonómica para las especies presentes en Colombia The genus Morpho in Colombia: II.Taxonomic key for the species from Colombia

open access: yesAgronomía Colombiana, 1996
Se presenta una clave dicotómica para determinar las diferentes especies de mariposas del género Morpho que habitan en Colombia, con ilustraciones sobre las genitalias de los principales subgéneros y fotografías (dorsal y ventral) de los adultos más ...
Rodríguez Claudia Luz   +2 more
doaj  

Habitat and spatial trends of U.K. wintering waterbird populations over 50 years

open access: yesConservation Biology, EarlyView.
Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay   +8 more
wiley   +1 more source

Seleccion de híbridos de especies de papa por resistencia a Phytophthora infestans (Mont) de Bary, fertilidad masculina y potencial productivo Hybrid selection of potatoe species for resistance to Phytophthora infestans (Mont) de Bary, male fertility and productive potential

open access: yesAgronomía Colombiana, 1990
En la Universidad Nacional de Colombia en Mosquera durante los años 1988 y 1989 se realizó una investigación, donde se evaluó bajo condiciones de invernadero la resistencia a P. infestans de las progenies de 51 cruzamientos (F1 y avanzados).
Ñustez L. Carlos Eduardo   +2 more
doaj  

Especial Imune

open access: yesSaúde Coletiva (Barueri)
Edição especial destinada ao Congresso Nursing ...
openaire   +1 more source

Scientists’ warning on the global destruction of rock outcrop ecosystems

open access: yesConservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula   +19 more
wiley   +1 more source

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