scholarly journals A Review of the Biology, Ecology, and Management of the South American Locust, Schistocerca cancellata (Serville, 1838), and Future Prospects

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 135
Author(s):  
Eduardo V. Trumper ◽  
Arianne J. Cease ◽  
María Marta Cigliano ◽  
Fernando Copa Bazán ◽  
Carlos E. Lange ◽  
...  
Keyword(s):  
Detailed Examination ◽  
Management Program ◽  
South American ◽  
The South ◽  
Successful Management ◽  
Gradual Reduction ◽  
Outbreak Areas ◽  
Major Pest ◽  
Sudden Appearance ◽  
Moderate Scale

In the first half of the twentieth century, the South American Locust (SAL), Schistocerca cancellata (Serville, 1838), was a major pest of agriculture in Argentina, Bolivia, Paraguay, Uruguay, and Brazil. From 1954–2014, a preventive management program appeared to limit SAL populations, with only small- to moderate-scale treatments required, limited to outbreak areas in northwest Argentina. However, the lack of major locust outbreaks led to a gradual reduction in resources, and in 2015, the sudden appearance of swarms marked the beginning of a substantial upsurge, with many swarms reported initially in Argentina in 2015, followed by expansion into neighboring countries over the next few years. The upsurge required a rapid allocation of resources for management of SAL and a detailed examination of the improvements needed for the successful management of this species. This paper provides a review of SAL biology, management history, and perspectives on navigating a plague period after a 60-year recession.

Cnidochloa: A New Genus of Grasses from Brazil (Poaceae: Panicoideae: Paniceae)

2020 ◽  
Vol 105 (2) ◽  
pp. 183-194
Author(s):  
Fernando O. Zuloaga ◽  
Sandra S. Aliscioni ◽  
M. Amalia Scataglini
Keyword(s):  
New Genus ◽  
Phylogenetic Position ◽  
South American ◽  
The South ◽  
South American Species ◽  
Molecular Characters

Generic boundaries of the South American species Panicum longipedicellatum Swallen are explored and compared with allied genera of the tribe Paniceae. On the basis of morphological, anatomical, and molecular characters a new genus, Cnidochloa Zuloaga, is proposed. The phylogenetic position of the new genus within the Paniceae is evaluated.

scholarly journals Microplastics pollution in the South American Pantanal

2021 ◽  
Vol 3 ◽  
pp. 100088
Author(s):  
Érika de Faria ◽  
Pierre Girard ◽  
Carolina Silva Nardes ◽  
Andressa Moreschi ◽  
Susete Wambier Christo ◽  
...  
Keyword(s):  
South American ◽  
The South

Onset and demise dates of the rainy season in the South American Monsoon region: a cluster analysis result

2021 ◽  
Author(s):  
Maria A. M. Rodrigues ◽  
Sâmia R. Garcia ◽  
Mary T. Kayano ◽  
Alan J. P. Calheiros ◽  
Rita V. Andreoli
Keyword(s):  
Cluster Analysis ◽  
Rainy Season ◽  
South American ◽  
Monsoon Region ◽  
The South ◽  
South American Monsoon

Insulating Peace: Managerial Coordination in Durable Security Complexes

2021 ◽  
Author(s):  
Konstantinos Travlos
Keyword(s):  
South Asian ◽  
Regional Security ◽  
Collective Intentionality ◽  
South American ◽  
Proof Of Concept ◽  
The South ◽  
Mapping Tool ◽  
Region I ◽  
The Face ◽  
Future Evaluation

Abstract I argue that insulation via managerial coordination is a key element in any explanation about the formation of political regions among states. The key role it plays is as a tool for the maintenance of intra-regional pacific relations in the face of diffusion and contagion processes, resulting from continued security linkages with excluded extra-regional states. In order to explore these dynamics, I propose a new reconceptualization of the concept of managerial coordination based on the basic framework concept mapping tool. This leads to clarity about what managerial coordination does as a dimension of insulation. It also necessitates a revamp of the scale of interstate managerial coordination as a measuring instrument of the intensity of collective intentionality toward insulation among the members of a region. I then map the region concept of durable security complex (DSC) as the scope for the enactment of managerial coordination, based on a review of existing region concepts in the new regionalist literature. I then conduct an ideographic proof-of-concept exercise on three DSCs in the presence or absence of managerial coordination. These are the Scandinavian states, the South Asian regional security complex, and the South American Norther Tier local hierarchy. The exercise provides indicators for a number of theoretical propositions worthy of future evaluation.

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