Results 141 to 150 of about 137,453 (311)

First report of deep-sea copepod Megacalanus princeps Wolfenden, 1904 (Calanoidea: Megacalanidae) from southwestern Atlantic

open access: yesNauplius
The deep-sea copepod Megacalanus princeps Wolfenden, 1904 was previously recorded from the northern and southeastern Atlantic, Indian and Pacific oceans, but not previously observed from southwestern Atlantic.
Flavio de Almeida Alves-Júnior   +5 more
doaj   +1 more source

Un nuevo género para Habrothrix angustidens y Akodon serrensis (RODENTIA, CRICETIDAE): de nuevo palentología y neontología se encuentran en el legado de Lund [PDF]

open access: yes, 2016
We describe a new genus of sigmodontine rodent to allocate a fossil species from Lagoa Santa cave deposits, Habrothrix angustidens Winge, and a living species from southeastern Atlantic Forest described at the start of the past century, Akodon serrensis ...
Geise, Lena   +3 more
core  

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

open access: yesNordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho   +4 more
wiley   +1 more source

Flora do Ceará, Brasil: Combretaceae

open access: yesRodriguésia
Este estudo consiste no levantamento florístico de Combretaceae ocorrentes no estado do Ceará, como parte do projeto "Flora do Ceará". O estudo foi baseado na análise comparativa dos caracteres morfológicos de espécimes depositados em herbários ...
Raimundo Luciano Soares Neto   +2 more
doaj   +1 more source

The relative roles of in situ diversification and lineage dispersal underlying diversity patterns at the assemblage level

open access: yesOikos, EarlyView.
Speciation, extinction, and dispersal are the historical processes influencing the spatial distribution of lineages and strongly influence diversity patterns. Here, we apply a recently developed methodological approach to quantify the relative legacies in situ diversification history (i.e.
Arthur Vinicius Rodrigues   +2 more
wiley   +1 more source

Cladocera (Crustacea, Branchiopoda) of a temporary shallow pond in the Caatinga of Pernambuco, Brazil

open access: yesNauplius
The aim of this study was to describe the composition and structure of cladocerans of littoral areas with and without macrophytes from a temporary shallow pond in the Caatinga of Pernambuco state (Brazil).
Leidiane Pereira Diniz   +3 more
doaj  

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

open access: yesOikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz   +3 more
wiley   +1 more source

Flora da Usina São José, Igarassu, Pernambuco: Lauraceae

open access: yesRodriguésia
Lauraceae é constituída por 52 gêneros e ca. 2500-3500 espécies distribuídas amplamente nas regiões tropicais e subtropicais do planeta. No Brasil é representada por 23 gêneros e aproximadamente 420 espécies.
Suellen Oliveira Santos, Marccus Alves
doaj   +1 more source

The spatial structure of the financial development in Brazil [PDF]

open access: yes
This paper explores the financial development in Brazil. It focuses on the impacts of the development level of a municipality’s financial system over its neighborhood, under the light of the Central Place Theory. Using a GMM estimator for a spatial panel
Fabiana Santos   +2 more
core  

Multiple scales of fear: foraging behaviour of white‐naped jays in semiarid landscapes

open access: yesOikos, EarlyView.
Animals must constantly balance the need to find resources with the risk of predation. Not only avoiding direct encounters with predators but also assessing the overall risk of their environment using cues, social information or habitat traits at multiple spatial and temporal scales.
Maria Carolina Beiriz   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy