Three new species of Seira Lubbock (Collembola, Entomobryidae) from Mataraca, Paraiba State, Brazil

Zootaxa ◽  
2008 ◽  
Vol 1773 (1) ◽  
pp. 44 ◽  
Author(s):  
BRUNO CAVALCANTE BELLINI ◽  
DOUGLAS ZEPPELINI
Keyword(s):  
New Species ◽  
Sand Dunes ◽  
Coastal Sand Dunes ◽  
Sympatric Distribution ◽  
Northeastern Region ◽  
Coastal Sand ◽  
Three New Species

Three new species of Seira Lubbock from Mataraca, Paraíba State, Brazil are described and illustrated, S. mataraquensis sp. nov., S. arenicola sp. nov. and S. pseudoannulata sp. nov. Evolutionary and taxonomic aspects of the dorsal chaetotaxy are discussed. The large number of Seira species recorded in Paraíba and the sympatric distribution of eight species in coastal sand dunes suggest that the Brazilian northeastern region is a hotspot of diversity for the genus.

Salacia frutiplatensis (Celastraceae, Salacioideae), a new species of the coastal sand dunes of Los Tuxtlas, Veracruz, Mexico

Phytotaxa ◽  
2020 ◽  
Vol 440 (3) ◽  
pp. 186-192
Author(s):  
GONZALO CASTILLO-CAMPOS ◽  
OLIVIA M. PALACIOS-WASSENAAR ◽  
M. LUISA MARTÍNEZ
Keyword(s):  
New Species ◽  
Sand Dunes ◽  
New Taxon ◽  
Los Tuxtlas ◽  
Coastal Sand Dunes ◽  
Coastal Sand ◽  
Pericarp Thickness ◽  
A New Species ◽  
Number Of Seeds

The new species Salacia frutiplatensis is described and illustrated herein. This new taxon is part of the arboreal strata of the coastal sand dunes scrub of Los Tuxtlas, Veracruz, Mexico, where it is considered endemic. Salacia frutiplatensis is similar to S. elliptica, S. cordata, and S. impressifolia, but differs from these in the shape and diameter of the extra-staminal disk, pericarp thickness, greater number of seeds, and not displaying the lianous habit.

Scaevola rialagartensis (Goodeniaceae), a new species from coastal sand dunes of Rio Lagartos, Yucatan, Mexico

Phytotaxa ◽  
2019 ◽  
Vol 392 (3) ◽  
pp. 239
Author(s):  
GONZALO CASTILLO-CAMPOS ◽  
JOSÉ G. GARCÍA-FRANCO ◽  
M. LUISA MARTÍNEZ
Keyword(s):  
New Species ◽  
Sand Dunes ◽  
Coastal Sand Dunes ◽  
Coastal Sand ◽  
A New Species

The new species, Scaevola rialagartensis Cast.-Campos is described and illustrated from coastal shrubland and vegetation bordering mangroves in Rio Lagartos, Yucatan, southeastern Mexico, where it is considered endemic. The new species is similar to S. plumieri, S. taccada and S. wrightii, all of which grow in similar environments, but can be differentiated from these in the size of shrubs, shape of axes, and nerves along leaves.

Elaeagnus umbellata (autumn olive).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval ◽  
Nick Pasiecznik
Keyword(s):  
Sand Dunes ◽  
Pinus Thunbergii ◽  
Shaanxi Province ◽  
Annual Rainfall ◽  
Coastal Sand Dunes ◽  
Elaeagnus Umbellata ◽  
Autumn Olive ◽  
Pioneer Tree ◽  
Coastal Sand ◽  
Deciduous Shrub

Abstract E. umbellata is an important deciduous shrub which reaches up to 5 m high and 10 cm in d.b.h. It is found in thickets and sparse woods of Japan, Korea and China. E. umbellata is a shade intolerant pioneer tree and is also commonly found along riversides and seashores in Japan. This species is growing in humid areas with 1000-4000 mm of annual rainfall in Japan. In China it is reported to grow even in semi-arid areas of Nei Menggu, Gansu and Shaanxi province, where annual rainfall is around 400 mm (Niu, 1990). E. umbellata can fix nitrogen and it is tolerant to salt winds, this species is therefore used for fixation of coastal sand dunes in Japan, and is frequently planted mixed with Pinus thunbergii as a soil improving tree. E. umbellata is also planted in eroded areas of mountainous zones to re-establish and develop vegetation. In China, E. umbellata is occasionally cultivated in gardens (Zhang, 1997).

Pans in humus podzols (Humods and Aquods) in coastal southern Queensland

Soil Research ◽  
1996 ◽  
Vol 34 (1) ◽  
pp. 161 ◽  
Author(s):  
CH Thompson ◽  
EM Bridges ◽  
DA Jenkins
Keyword(s):  
Soil Depth ◽  
Sand Dunes ◽  
Coastal Dunes ◽  
Particle Packing ◽  
Sand Mining ◽  
Coastal Sand Dunes ◽  
Organic Complex ◽  
Coastal Sand ◽  
Coastal Lowlands

An exploratory examination has been made of three different kinds of hardpans found in humus podzols (Humods and Aquods) of the coastal lowlands of southern Queensland, by means of slaking tests, a reactive aluminium test, acid oxalate and pyrophosphate extractions and electron microscopy. Samples from three indurated layers exposed by erosion or sand-mining in large coastal dunes were included for comparison. The investigation confirmed that, a pan in a bleached A2 (albic E) horizon is most likely caused by particle packing and that a pan in a black B2h (spodic) horizon is cemented by an aluminium-organic complex. Yellow-brown pans underlying black organic pans (spodic horizons) were found to be cemented by both a proto-imogolite/allophane complex and an organic substance. An inorganic reactive Al complex differing from the proto-imogolite allophane recorded in the overlying giant podzols appeared to be main cement of three indurated layers in the nearby coastal sand dunes. Mechanical disturbance of the pans, e.g. ripping, is unlikely to improve drainage and effective soil depth in the long term, because the disturbed zones are expected to be re-sealed by packed particles or by the aluminium-organic complex cement.

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