Results 71 to 80 of about 86,377 (263)
Age‐related trends in niche position and specialization in Neotropical vertebrates
Ecography, EarlyView.Species' niche positions and breadths within a region's environmental space, measured through ecological niche factor analysis (ENFA) as marginality and specialization, can reflect evolutionary constraints related to lineage age. The ‘internal incumbency' hypothesis predicts that older species, due to competitive preemption, occupy more central niche ...
Carlos Calderón del Cid +3 more
wiley +1 more source
BIOLOGIA DA REPRODUÇÃO EM QUATRO ESPÉCIES DE Centrosema (DC.) BENTH
Ciência Rural, 1994 RESUMO Com a finalidade de obter informações básicas sobre biologia floral das espécies: C. brasilianum (L.) Benth., C. Virginianum (L) Benth., C. shottii (Mill.) K. Sch. e C.
Alice Battistin +1 more
doaj +1 more source
Geographic biases and gaps in the sampling of plant–pollinator networks
Ecography, EarlyView.Plant–pollinator interactions are essential for maintaining biodiversity and supporting food production, yet inferences drawn from network syntheses may be shaped by where interaction data are generated and which datasets are most reused. Here, we quantify the global distribution of published plant–pollinator networks, assess how publication rates vary
Emanuelle L. S. Brito +3 more
wiley +1 more source
Revista UniVap, 2017 O meio ambiente vem sofrendo com diversas degradações ao longo dos anos, que afetam a flora e fauna existente na vegetação nativa. A disciplina de ecologia, busca entender melhor as relações existentes entre os seres vivos, proporcionando aos alunos o ...
Sabrina Buqueroni Alves +3 more
doaj +1 more source
A Hoveyda–Grubbs‐Type Olefin Metathesis Catalyst Bearing a Fluorinated Unsymmetrical NHC Ligand
European Journal of Inorganic Chemistry, EarlyView.A fluorinated unsymmetrical NHC ruthenium complex was synthesised and employed as a catalyst for olefin metathesis reactions. The modification of the steric and electronic properties of the NHC ligand through the introduction of fluorine substituents results in improved activity but lower selectivity compared to the analogous non‐fluorinated NHC ...
Rubina Troiano +3 more
wiley +1 more source
Ciência Rural, 2000 O presente trabalho objetivou o estudo de parte do ciclo da Babesia bovis no seu hospedeiro invertebrado, o carrapato Boophilus microplus. Analisou-se a capacidade de infeccção e transmissão transovariana de B. bovis em partenóginas de B.
Tânia Regina Bettin dos Santos +3 more
doaj +1 more source
Scientia Agricola, 1996 O trabalho teve por objetivo estudar alguns aspectos biológicos da lagarta-da-soja, Anticarsia gemmatalis Hübner, alimentada com folhas de seis cultivares de soja (Bossier, Planalto, Prata, Santa Rosa, UFV-1 e Viçoja), em duas densidades larvais de ...
E.A CASTIGLIONI, J.D VENDRAMIM
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Journal of Applied Toxicology, EarlyView.ABSTRACT Toxicological assessment is essential in NP approval for health and medical applications. Although 2D cell culture has been widely used, 3D models, especially spheroids, provide better predictive value for toxicological risk assessments since they replicate complex cellular interactions more accurately.
Bianca Montenegro +5 more
wiley +1 more source
CERAMBYCIDAE ASSOCIADOS A LAURACEAE, NA REGIÃO CENTRAL DO RIO GRANDE DO SUL, BRASIL [PDF]
Ciência Florestal, 1997 A identificação dos cerambicídeos associados aos galhos de quatro espécies de lauráceas, cortados pelo serrador Oncideres captiosa, foi estudada em Santa Maria e Cachoeira do Sul, RS.
Dionisio Link, Leopoldo Witeck Neto
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