scholarly journals Living in extreme environments: distribution of Lycium humile (Solanaceae), an endemic halophyte from the Altiplano-Puna region, South America

PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 1-15
Author(s):  
María Virginia Palchetti ◽  
Juan José Cantero ◽  
Vanezza Morales-Fierro ◽  
Gloria E. Barboza ◽  
Andrés Moreira-Muñoz
Keyword(s):  
South America ◽  
Soil Salinity ◽  
New Record ◽  
Extreme Environments ◽  
Saline Soils ◽  
Ecological Role ◽  
Saline Environments ◽  
Solanaceae Species ◽  
The World ◽  
Iucn Criteria

Very few Solanaceae species are able to grow in saline soils; one of them is Lycium humile. This species is endemic to the Altiplano-Puna region (Central Andes, South America) where there are multiple extreme environmental conditions such as hypersaline soils. Here we present an updated description and distribution of L. humile including its new record for Bolivia at the edges of “Salar de Uyuni”, the largest salt flat in the world; we discuss its ecological role in saline environments by analyzing soil salinity and cover-abundance values ​​of the studied sites. According to IUCN criteria, we recommend a category of Least Concern for L. humile, but the growing development of lithium mining in saline environments of the Altiplano-Puna region may potentially threaten exclusive communities.

Atriplex retusa, the correct name for A. deserticola (Chenopodiaceae; Amaranthaceae sensu APG)

Phytotaxa ◽  
2018 ◽  
Vol 373 (1) ◽  
pp. 95
Author(s):  
TIM BÖHNERT ◽  
FEDERICO LUEBERT ◽  
MAXIMILIAN WEIGEND
Keyword(s):  
North America ◽  
South America ◽  
Saline Soils ◽  
Centre Of Diversity ◽  
The World ◽  
Dry Conditions ◽  
America South

The genus Atriplex Linnaeus (1753: 1052) (Chenopodiaceae Vent.; placed in Amaranthaceae Juss. s. l. in APG IV 2016) comprises about 300 species distributed mainly in subtropical, temperate, and subarctic regions of the world and is mostly adapted to dry conditions on often saline soils (Sukhorukov & Danin 2009, Kadereit et al. 2010, Iamonico 2013, APG IV 2016). The genus is highly diverse in Eurasia, Australia and North America. South America is another centre of diversity with ca. 55 species, 45 of which are considered as native (Brignone et al. 2016). A recent and exhaustive taxonomical synopsis of Atriplex for South America was published by Brignone et al. (2016), but there are also regional taxonomic revisions, e.g., for Chile by Rosas (1989), or Argentina by Múlgura de Romero (1981, 1982 & 1984).

scholarly journals Contribution to the Knowledge of the Genus Proceratium Roger (Hymenoptera: Formicidae: Proceratiinae) in the New World

Sociobiology ◽  
2019 ◽  
Vol 66 (4) ◽  
pp. 551
Author(s):  
Itanna Oliveira Fernandes ◽  
Jacques Hubert Charles Delabie ◽  
Fernando Castiblanco Fernández
Keyword(s):  
High Resolution ◽  
South America ◽  
New Record ◽  
New World ◽  
Distribution Data ◽  
Caribbean Islands ◽  
The World ◽  
High Resolution Images ◽  
South Of Brazil ◽  
First Time

The genus Proceratium Roger comprises rare ants that are irregularly distributed in tropical and temperate regions of the world. Despite this global distribution, these ants are rarely collected, likely due to their cryptobiotic lifestyle. In the New World, the genus comprises 22 known species distributed from Southern Canada to the South of Brazil, and in some Caribbean islands. The taxonomy of the genus Proceratium is here updated for South America. We describe P. amazonicum sp. nov, from Rondônia state and provide distribution data for P. brasiliense, P. convexipes, and P. silaceum. We also present, for the first time, high-resolution images of the P. colombicum type and P. ecuadoriense, and provide a new record of P. micrommatum from Peru, and comment about its morphological variation and distribution. A key for the workers of the P. micrommatum clade is also provided. The species we describe belongs to P. micrommatum clade and represents the second species recorded from Brazil after 60 years, since only P. brasiliense was known previously in the country.

Salvia misella (Lamiaceae)—A new record for Asia from the southern Western Ghats of India

Phytotaxa ◽  
2015 ◽  
Vol 230 (3) ◽  
pp. 281
Author(s):  
Sunojkumar P ◽  
Pradeep A K
Keyword(s):  
South America ◽  
Western Ghats ◽  
New Record ◽  
The Andes ◽  
Western Ghats Of India ◽  
The Family ◽  
The World ◽  
Southern Western Ghats ◽  
Culinary Herbs ◽  
Plant Families

The mint family, Lamiaceae is generally regarded as being one of the most highly derived plant families from the viewpoint of floral structures (Hedge 1992). The family is best known for their essential oils common to many members of the family and are a major source of culinary herbs. Within the subfamily Nepetoideae tribe Mentheae, the subtribe Salviineae includes 8 genera with about 954 species in the world (Harley et al. 2004). The genus Salvia L. (1753: 23) alone account for over 900 species in the subtribe and is the largest genera in Labiatae (Mabberley 2008). It is a tropical and subtropical genus mostly found in montane areas with the major diversity in Mediterranean, Central Asia, the highlands of Mexico and the Andes in South America (Rodrigues-Hahn et al. 1992).

scholarly journals Teamwork to Survive in Hostile Soils: Use of Plant Growth-Promoting Bacteria to Ameliorate Soil Salinity Stress in Crops

2022 ◽  
Vol 10 (1) ◽  
pp. 150
Author(s):  
Rafael Jiménez-Mejía ◽  
Ricardo I. Medina-Estrada ◽  
Santos Carballar-Hernández ◽  
Ma. del Carmen Orozco-Mosqueda ◽  
Gustavo Santoyo ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Salinity ◽  
Saline Soils ◽  
Plant Growth Promoting Bacteria ◽  
Negative Consequences ◽  
The World ◽  
Different Types ◽  
Plant Growth Promoting ◽  
Growth Promoting

Plants and their microbiomes, including plant growth-promoting bacteria (PGPB), can work as a team to reduce the adverse effects of different types of stress, including drought, heat, cold, and heavy metals stresses, as well as salinity in soils. These abiotic stresses are reviewed here, with an emphasis on salinity and its negative consequences on crops, due to their wide presence in cultivable soils around the world. Likewise, the factors that stimulate the salinity of soils and their impact on microbial diversity and plant physiology were also analyzed. In addition, the saline soils that exist in Mexico were analyzed as a case study. We also made some proposals for a more extensive use of bacterial bioinoculants in agriculture, particularly in developing countries. Finally, PGPB are highly relevant and extremely helpful in counteracting the toxic effects of soil salinity and improving crop growth and production; therefore, their use should be intensively promoted.

IV.—The Geological Development, Descent and Distribution of the Mammalia

1893 ◽  
Vol 10 (9) ◽  
pp. 401-412 ◽  
Author(s):  
Karl A. von Zittel
Keyword(s):  
South America ◽  
The Past ◽  
Limited Experience ◽  
The World ◽  
Relationship Of ◽  
North And South America ◽  
The Relationship ◽  
North And South ◽  
Animal World

In a spirited treatise on the ‘Origin of our Animal World’ Prof. L. Rütimeyer, in the year 1867, described the geological development and distribution of the mammalia, and the relationship of the different faunas of the past with each other and with that now existing. Although, since the appearance of that masterly sketch the palæontological material has been, at least, doubled through new discoveries in Europe and more especially in North and South America, this unexpected increase has in most instances only served as a confirmation of the views which Rutimeyer advanced on more limited experience. At present, Africa forms the only great gap in our knowledge of the fossil mammalia; all the remaining parts of the world can show materials more or less abundantly, from which the course followed by the mammalia in their geological development can be traced with approximate certainty.

Playful mobilities in the Global South: A study of Pokémon Go play in Rio de Janeiro and Nairobi

2021 ◽  
pp. 146144482110164
Author(s):  
Adriana de Souza e Silva ◽  
Ragan Glover-Rijkse ◽  
Anne Njathi ◽  
Daniela de Cunto Bueno
Keyword(s):  
South America ◽  
Rio De Janeiro ◽  
Global South ◽  
Urban Spaces ◽  
Urban Mobility ◽  
Ordinary Life ◽  
Perceptions Of Risk ◽  
The Social ◽  
The World ◽  
Pokémon Go

Pokémon Go is the most popular location-based game worldwide. As a location-based game, Pokémon Go’s gameplay is connected to networked urban mobility. However, urban mobility differs significantly around the world. Large metropoles in South America and Africa, for example, experience ingrained social, cultural, and economic inequalities. With this in mind, we interviewed Pokémon Go players in two Global South cities, Rio de Janeiro (Brazil) and Nairobi (Kenya), to understand how players navigate urban spaces not only based on gameplay but with broader concerns for safety. Our findings reveal that players negotiate their urban mobilities based on perceptions of risk and safety, choosing how to move around and avoiding areas known for violence and theft. These findings are relevant for understanding the social and political aspects of networked urban spaces as well as for investigating games as venues through which we can understand ordinary life, racial, gender, and socioeconomic inequalities.

scholarly journals Human Q Fever on the Guiana Shield and Brazil: Recent Findings and Remaining Questions

2021 ◽  
Author(s):  
Loïc Epelboin ◽  
Carole Eldin ◽  
Pauline Thill ◽  
Vincent Pommier de Santi ◽  
Philippe Abboud ◽  
...  
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Coxiella Burnetii ◽  
French Guiana ◽  
Q Fever ◽  
Guiana Shield ◽  
Animal Reservoir ◽  
The World ◽  
Unique Strain ◽  
Amazonian Region

Abstract Purpose of Review In this review, we report on the state of knowledge about human Q fever in Brazil and on the Guiana Shield, an Amazonian region located in northeastern South America. There is a contrast between French Guiana, where the incidence of this disease is the highest in the world, and other countries where this disease is practically non-existent. Recent Findings Recent findings are essentially in French Guiana where a unique strain MST17 has been identified; it is probably more virulent than those usually found with a particularly marked pulmonary tropism, a mysterious animal reservoir, a geographical distribution that raises questions. Summary Q fever is a bacterial zoonosis due to Coxiella burnetii that has been reported worldwide. On the Guiana Shield, a region mostly covered by Amazonian forest, which encompasses the Venezuelan State of Bolivar, Guyana, Suriname, French Guiana, and the Brazilian State of Amapá, the situation is very heterogeneous. While French Guiana is the region reporting the highest incidence of this disease in the world, with a single infecting clone (MST 117) and a unique epidemiological cycle, it has hardly ever been reported in other countries in the region. This absence of cases raises many questions and is probably due to massive under-diagnosis. Studies should estimate comprehensively the true burden of this disease in the region.

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