28 Works

Negative impacts of dominance on bee communities: Does the influence of invasive honey bees differ from native bees?

Lucas Alejandro Garibaldi, Lucas Garibaldi, Néstor Pérez-Méndez, Guaraci Cordeiro, Alice Hughes, Michael Orr, Isabel Alves Dos Santos, Breno Freitas, Favízia Freitas De Oliveira, Gretchen Lebuhn, Ignasi Bartomeus, Marcelo Aizen, Patricia Andrade, Betina Blochtein, Danilo Boscolo, Patricia Drumond, Maria Gaglianone, Barbara Gemmill-Herren, Rosana Halinski, Cristiane Krug, Marcia Maues, Lucia Piedade Kiill, Mardiore Pinheiro, Carmen Pires & Blandina Felipe Viana
Invasive species can reach high abundances and dominate native environments. One of the most impressive examples of ecological invasions is the spread of the African sub-species of the honey bee throughout the Americas, starting from its introduction in a single locality in Brazil. The invasive honey bee is expected to more negatively impact bee community abundance and diversity than native dominant species, but this has not been tested previously. We developed a comprehensive and systematic...

Quantitative interactions: the disease outcome of Botrytis cinerea across the plant kingdom

Celine Caseys, Gongjun Shi, Nicole Soltis, Raoni Gwinner, Jason Corwin, Susanna Atwell & Daniel Kliebenstein
Botrytis cinerea is a fungal pathogen that causes necrotic disease on more than a thousand known hosts widely spread across the plant kingdom. How B. cinerea interacts with such extensive host diversity remains largely unknown. To address this question, we generated an infectivity matrix of 98 strains of B. cinerea on 90 genotypes representing eight host plants. This experimental infectivity matrix revealed that the disease outcome is largely explained by variations in either the host...

Soil physical-hydric attributes under no-tillage crop in the savannah of the Southwest region of the Piaui State, Brazil

Aderson Soares Andrade Junior, Francisco De Brito Melo, Henrique Antunes Souza & Odália Carolinne Mota Souza
The soils of the savannah region, Piaui State, Brazil, are favorable to agriculture; however, intensive use combined with inadequate management has caused soil degradation in the region. For this reason, studies focused on the use of alternative production systems as a no-till system (SPD), have become essential. Thus, the objective was to evaluate the changes in the physical-hydric attributes and organic matter in Oxisols under different times of no-tillage crop under straw in savannah areas...

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