Results 141 to 150 of about 3,960 (294)

Assembling the Neotropical Tree Flora: Andean Uplift and the Historical Biogeography of the Brazil Nut Family (Lecythidaceae)

open access: yesJournal of Biogeography
ABSTRACT Aim The assembly of tropical tree floras is complex, involving many lineage‐specific histories; however, focusing on the biogeographic history of diverse clades can reveal general patterns.
Diana Medellín‐Zabala   +8 more
openaire   +1 more source

Subsídios para restauração de áreas degradadas: banco de dados e análise das espécies vegetais de ocorrência no sul de Santa Catarina [PDF]

open access: yes, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas.
Zoucas, Beatriz Casses
core  

Pruning slash drives ambrosia beetle (Curculionidae: Scolytinae, Platypodinae) activity in Khaya grandifoliola C.DC.: Slash removal as a preventive management strategy Resíduos de poda aumentam a atividade de besouros da ambrosia (Curculionidae: Scolytinae, Platypodinae) em Khaya grandifoliola C.DC.: A remoção dos resíduos como estratégia preventiva de manejo

open access: yesAgricultural and Forest Entomology, EarlyView.
Slash retention increased ambrosia beetle activity in Khaya grandifoliola, acting as both breeding substrate and source of attractive volatile cues that promoted localized population buildup. Beetle attacks occurred only near retained slash, while no attacks were recorded in slash‐removal plots, demonstrating that residue removal effectively prevents ...
Luana de Souza Covre   +1 more
wiley   +1 more source

LAS MARCGRAVIACEAE (ERICALES) DE BRASIL: LAS ESPECIES DEL COMPLEJO NORANTEA

open access: yesCaldasia, 2005
Se presenta un estudio taxonómico de las especies brasileñas del complejo Norantea (géneros Marcgraviastrum, Norantea, Sarcopera y Schwartzia) de la familia neotropical Marcgraviaceae.
GIRALDO-CAÑAS DIEGO, FIASCHI PEDRO
doaj  

Occurrence of some Lejeuneaceae (Jungermanniophyta) in Bahia, Brazil

open access: yes, 2000
Five species of Lejeuneaceae, tribe Lejeuneae from state of Bahia, Brazil are described and illustrated.
Bôas-Bastos, Silvana Brito Vilas   +1 more
core  

The dual crisis: Climate change simultaneously drives pollinator decline and Pest outbreaks

open access: yesAgricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

Neotropical Entomology

open access: yes, 2003
É apresentada uma revisão dos registros de plantas visitadas por espécies de abelhas do gênero Centris em áreas de caatinga, vegetação xerófila predominante na região semi-árida do nordeste do Brasil, incluindo dados de literatura e resultados originais ...
Zanella, Fernando Cesar Vieira   +3 more
core  

Morphology of Guard Hairs in Amazonian Marsupials: Intergeneric Variation, Habitat and Habit Association in a Phylogenetic Framework of the Order Didelphimorphia

open access: yesActa Zoologica, EarlyView.
ABSTRACT The cuticle and medulla of guard hairs exhibit distinct morphological patterns among mammalian species. To investigate this variability in marsupials from the Brazilian Amazon, we analysed guard hairs from nine Didelphimorphia species and incorporated data from an additional 25 didelphid species.
Matheus M. Bitencourt   +4 more
wiley   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

open access: yesBoreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo   +5 more
wiley   +1 more source

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