Results 31 to 40 of about 10,738 (160)

Two new species of Calea ser. Multiplinerviae (Asteraceae: Neurolaeneae) from Brazil

open access: yesNordic Journal of Botany, EarlyView.
Detailed studies of specimens from Rondônia and Mato Grosso do Sul showed that two new species have been misidentified: Calea micropappa resembles Calea pilosa, but differs by leaf apex obtuse to acuminate (versus acute), paleae present (versus paleae absent), disc corolla lobes 1.2–1.3 mm long (versus 0.7–0.8 mm), and pappus scales 0.1–0.25 mm long ...
Vinícius Resende Bueno   +2 more
wiley   +1 more source

1 Simpósio Brasileiro do Trópico Semi-Árido. [PDF]

open access: yes, 1982
A pesquisa científica sobre o nordeste brasileiro teve, durante a década de 1970, grande desenvolvimento graças às orientações do Governo constantes do I e II Planos Nacionais de Desenvolvimento.I Simpósio Brasileiro do Trópico Semi-Árido, Olinda, ago ...
EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
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Beyond forests: Harnessing conservation gardening for open biomes in Brazil

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Urban gardening offers an innovative conservation strategy by integrating native ornamental species into urban landscapes. We evaluated the ornamental potential of the Brazilian flora by comparing the representation of species from forests versus open biomes (focusing on campo rupestre grasslands) and introduced and validated the Index of Ornamental ...
Flávia Santos Faria   +2 more
wiley   +1 more source

De Trópico e Tropicologia na obra de Mário Souto Maior [PDF]

open access: yes, 2011
RESUMO A análise de conteúdo da obra de Mário Souto Maior revela marcante presença de elementos da natureza e do modo de vida no Trópico do Nordeste brasileiro, bem como o enfoque interdisciplinar na identificação das relações que descrevem e explicam as
Cavalcanti, Zaida Maria Costa
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Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

Trópico remisión de V. círculo trópico. [PDF]

open access: yes, 2011
[ES] Definición del término Trópico remisión de V. círculo trópico. en el diccionario Dicter.[EN] Definition of the word Trópico remisión de V. círculo trópico.

core  

‘Civilizing’ Smallholders Through Oil Palm: The Politics of Subsumption Across Southern Mexico's Commodity Frontiers

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT While most frontier studies associate commodity expansions with dispossession, I argue that such expansions can also function as ‘civilizational’ projects aimed at overcoming traditional farming and creating new rural subjects better suited to the needs of capitalist development. Using a Gramscian approach to study subsumption, I analyse three
Antonio Castellanos‐Navarrete
wiley   +1 more source

E.coli 0157: H7 enterohemorrágico: un agente etiológico de diarrea y zoonosis en Colombia subestimado. Parte I

open access: yesRevista Mvz Cordoba, 2017
En los últimos años, la enfermedad diarreica aguda (EDA) se ha convertido en un serio problema de salud pública; la EDA tiene las características de una verdadera pandemia si tenemos en cuenta que ha afectado a múltiples países en Europa y América.
Salim Máttar V   +2 more
doaj   +1 more source

Status and future of seed conservation of threatened plants in the post‐2020 era

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1763-1777, September 2026.
Ambitious targets have been set to backup seeds of threatened plants by the global strategy for plant conservation (GSPC), but it is unclear in how far these targets have been met and how seed collection should be organized to meet future challenges. Here, we provide an overview of the status of 44 countries in achieving seed conservation targets.
Andreas Ensslin   +130 more
wiley   +1 more source

Extent, characteristics and policy applications of Key Biodiversity Areas

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1735-1759, August 2026.
ABSTRACT A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persistence of biodiversity’. We review the initiative's origins, the KBA identification process, characteristics of the current network, threats, policy
Stuart H. M. Butchart   +57 more
wiley   +1 more source

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