scholarly journals HOLOTHURIOIDEA (ECHINODERMATA) DE AGUAS SOMERAS EN LA COSTA NORTE DE COLOMBIA

2016 ◽  
Vol 10 ◽  
Author(s):  
Iván Enrique Caycedo
Keyword(s):  
Shallow Water ◽  
National Park ◽  
New Records ◽  
Northern Coast ◽  
North East ◽  
The North ◽  
Field Identification

Systematic and ecological remarks are presented on 14 species of shallow water holothurians of the northern coast of Colombia. The material was collected from Islas del Rosario off the coast southwest of Cartagena (10° 08' 39" Lat. N 75° 43, 21" Long. W) and from Tayrona National Park to the north east of Santa Marta (11° 20, Lat. N and 74 05, Long. W). Ten species are new records to Colombia, one of them appeared to be undescribed as yet (Holothuria thomaú sp. nov. Pawson & Caycedo, in preparation). A key to these species is given. The occurrence of some species in abundance in different habitats is discussed in order to elucidate ecological interrelationships and facilitate field identification.

scholarly journals Marine late Saalian to Eemian environments and climatic variability in the Danish shelf area

2000 ◽  
Vol 79 (2-3) ◽  
pp. 335-343 ◽  
Author(s):  
Marit-Solveig Seidenkrantz ◽  
Karen Luise Knudsen ◽  
Peter Kristensen
Keyword(s):  
Climate Variability ◽  
Shallow Water ◽  
Oxygen Isotope ◽  
Deep Water ◽  
Climatic Variability ◽  
Shelf Area ◽  
North East ◽  
The North ◽  
Mis 5E

AbstractThe marine Eemian (marine oxygen-isotope substage 5e: MIS 5e) is represented by shallow-water deposits in southern and western Denmark, while relatively deep-water environments occurred to the north and north-east, where complete interglacial successions seem to be present. We present an overview of the marine Eemian deposits in Denmark, and discuss in more detail indications of climate variability, both for the late Saalian and within the Eemian.

The ghost bat in the Pilbara: 100 years on.

2000 ◽  
Vol 22 (2) ◽  
pp. 93 ◽  
Author(s):  
KN Armstrong ◽  
SD Anstee
Keyword(s):  
Western Australia ◽  
New Records ◽  
Iron Formation ◽  
Natural Habitats ◽  
The Third ◽  
North East ◽  
The North ◽  
Preferred Habitat

This paper summarises the roost habitat and distribution of the ghost bat, Macroderma gigas (Dobson, 1880), in the Pilbara region of Western Australia, with particular emphasis on natural habitats. The preferred habitat of M. gigas in the Hamersley Ranges appears to be caves beneath bluffs of low rounded hills composed of Marra Mamba geology. Habitats were also found in the larger hills of Brockman Iron Formation in the Hamersley Range, and other formations beneath bluffs composed of Gorge Creek Group geology to the north east. Granite rockpiles are also used in the eastern Pilbara. A summary of Pilbara records from numerous sources is presented, including anecdotal accounts and other new records. This includes a newly discovered maternity site from the Hamersley Ranges, only the third reported from natural cave formations in the region. Threats to M. gigas in the region are highlighted and include disturbances associated with mining and entanglement in barbed wire fences.

New and noteworthy Melastomataceae from the Yanachaga-Chemillén National Park and surrounding areas in Oxapampa, Pasco, Peru

Phytotaxa ◽  
2018 ◽  
Vol 374 (3) ◽  
pp. 185 ◽  
Author(s):  
FABIÁN A. MICHELANGELI ◽  
RENATO GOLDENBERG
Keyword(s):  
National Park ◽  
Leaf Surface ◽  
Nodal Line ◽  
Abaxial Surface ◽  
North East ◽  
The North ◽  
The Andes ◽  
Abaxial Leaf Surface ◽  
Surrounding Areas ◽  
Sclerophyllous Forests

We describe six new species of Melastomataceae from the Yanachaga-Chemillén National Park and surrounding areas from the Department of Pasco, Province of Oxapampa in Central Peru. Macrocentrum andinum is the first species of the genus described from the Andes, found along creeks at 400–500 m elev. and characterized by its anysophyllous leaves, pubescent stems and four-merous flowers. Meriania rubriflora is found in forests above 2200 m elev. and it is characterized by stem nodes with stipular flaps, leaves with an acute base and four merous, deep red flowers. Miconia palcazuana is found along rivers and streams at 300–400 m on the eastern flank of the park, and it can be distinguished by its flowers with pink anthers with glands on the connective and narrowly oblanceolate to elliptic-lanceolate leaves. Miconia yanachagaensis grows in the dwarf-sclerophyllous forests at the top of ridges and grasslands over 2800 m elev. and it is characterized by its long dendritic-pedicellate trichomes on the abaxial leaf surface, the stems flattened to terete and the presence of a conspicuous annular nodal line. Triolena rojasae is found growing on rocks along the Palcazú River and its tributaries, and it is characterized by its lanceolate-crenate leaves. Triolena vasquezii grows on the northern end of the Huancabamba canyon and the North East portion of the park and can be distinguished by its pustulate leaves with purple abaxial surface and anthers with two ventral appendages. We also present the first report of the genus Wurdastom for Peru.

Lichens from Changbai Shan—Some Additions to the Lichen Flora of North-East China

1982 ◽  
Vol 14 (2) ◽  
pp. 139-152 ◽  
Author(s):  
H. Hertel ◽  
C.-F. Zhao
Keyword(s):  
Northern Hemisphere ◽  
New Records ◽  
East China ◽  
Floristic Similarity ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Saxicolous Lichens ◽  
Lichen Flora

AbstractTwenty-five mainly crustose and saxicolous lichens are reported from the subalpine and alpine belts of Mt Changbai (n.-e. China, near the Korean border). All are new records to the lichen flora of the north-eastern provinces of China, 12 of them to the flora of all China, and four to the flora of all Asia. There is some floristic similarity to some other areas with cool humid climates in the Northern Hemisphere, e.g. Iceland.

scholarly journals The flood extent in the lower Biebrza basin calculated by the 1D flow model for different land use scenarios

2008 ◽  
Vol 40 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Sylwia Szporak ◽  
Dorota Mirosław-Świątek ◽  
Jarosław Chormański
Keyword(s):  
Land Use ◽  
National Park ◽  
Flow Model ◽  
Main Channel ◽  
River Valley ◽  
North East ◽  
The North ◽  
Land Use Scenarios ◽  
Flooded Area

The flood extent in the lower Biebrza basin calculated by the 1D flow model for different land use scenarios The flood extent in the lower Biebrza basin calculated by the 1D flow model for different land use scenarios. An application of an steady 1D flow model for determination of a flood extent in the natural river valley is discussed in this paper. The Pasche method was used to calculate the total Darcy-Weisbach friction factor for each cross section according to the type of vegetation and flow interaction between the main channel and vegetated areas. In this approach friction caused by interaction between the main channel and vegetated areas are taken into account. The model was applied to the Biebrza Valley, fairly undisturbed river-marginal peatland, located in the north-east of Poland. Actual land use carried out in the National Park was analyzed to determine the influence of changes in the vegetation structure on the flood extent in the river valley. The obtained results show variation of a flooded area in relation to the vegetation of the floodplain.

New records of Serpulidae (Annelida, Polychaeta) from hydrothermal vents of North Fiji, Pacific Ocean

Zootaxa ◽  
2010 ◽  
Vol 2389 (1) ◽  
pp. 57 ◽  
Author(s):  
ELENA K. KUPRIYANOVA ◽  
EIJIROH NISHI ◽  
MASARU KAWATO ◽  
YOSHIHIRO FUJIWARA
Keyword(s):  
Ribosomal Rna ◽  
Hydrothermal Vent ◽  
Hydrothermal Vents ◽  
New Records ◽  
Phylogenetic Analyses ◽  
Suspension Feeding ◽  
North East ◽  
The North ◽  
East Pacific ◽  
Molecular Phylogenetic

Serpulidae are sessile suspension-feeding annelids commonly found in the periphery of hydrothermal vents, but up to now only two species, Laminatubus alvini and Protis hydrothermica had been described from such communities. This paper reports two additional serpulid species, collected in 2005 from the North Fiji hydrothermal vent area, identified as Hyalopomatus mironovi and Protis sp. The former has originally been described from the Kurile-Kamchatka Trench and the later recorded from the North-East Pacific. The latter species is similar to Protis hydrothermica, but lacks special finand-blade collar chaetae typical of this genus. Illustrated re-descriptions of the two species have been supplemented by molecular sequences (18S ribosomal RNA). Molecular phylogenetic analyses show that Hyalopomatus mironovi and Protis sp. are sister species of Laminatubus alvini and Protis hydrothermica, respectively.

Mosses of the Nahanni and Liard ranges area, southwestern Northwest Territories

1979 ◽  
Vol 57 (3) ◽  
pp. 269-283 ◽  
Author(s):  
Dale H. Vitt ◽  
Diana G. Horton
Keyword(s):  
Northwest Territories ◽  
North American ◽  
Rocky Mountains ◽  
National Park ◽  
Small Area ◽  
New Records ◽  
The South ◽  
Moss Species ◽  
Mountain Ranges ◽  
The North

The Nahanni and Liard mountain ranges are located at about 61° N latitude and 122° W longitude. They form the easternmost slopes of the Rocky Mountains and lie just east of Nahanni National Park in the southwestern corner of the District of Mackenzie, Northwest Territories. The moss flora of the area is rich in the number of taxa; 207 species and two varieties are reported from this relatively small area. Of these, 53 species are new records for the South Nahanni region. A number of rare or disjunct bryophyte species are found in the area. Moss species which are either disjunct or occur at the edge of their range include Arctoa fulvella (Dicks.) B.S.G., Aulacomnium acuminatum (Lindb. & Arn.) Kindb., Andreaeobryum macrosporum Steere & B. Murray, Geheebia gigantea (Funck) Boul., Isopterygiopsis muelleriana (Schimp.) Iwats., Mnium spinosum (Voit) Schwaegr., Psilopilum cavifolium (Wils.) Hagen, Rhabdoweisia crispata (With.) Lindb., Seligeria calcarea (Hedw.) B.S.G., S. polaris Berggr., Trematodon brevicollis Hornsch., and Trichostomum arcticum Kaal. The North American distribution of these species is mapped. Herbertus stramineus (Dum.) Trev., Metacalypogeia schusterana Hatt. & Mizut., Scapania crassiretis Bryhn, and S. simmonsii Bryhn & Kaal. are four hepatic species of phytogeographic interest.

scholarly journals Early Ordovician trilobites and molluscs from the Poulsen Cliff Formation, Washington Land, western North Greenland

1990 ◽  
Vol 38 ◽  
pp. 11-32
Author(s):  
R. A. Fortey ◽  
]. S. Peel
Keyword(s):  
Shallow Water ◽  
Siberian Platform ◽  
Gastropod Species ◽  
Early Ordovician ◽  
North East ◽  
The North ◽  
Close Relationship ◽  
North Greenland ◽  
Subjective Synonym

A well-preserved, shallow water bathyurid trilobite fauna of early Ordovician age, and associated gastropods and an undetermined hyolith are described from the Poulsen Cliff Formation of Washington Land, western North Greenland. Two new bathyurid species, Licnocephala sminue and Pe/tabellia elegans, and a new gastropod species, Plethospira(?) floweri, are described. Biolgina Maximova is considered a junior subjective synonym of Peltabellia Whittington. The distribution of the genus is an example of close relationship between shallow water trilobite faunas of Laurentia and the North-east Siberian platform in the early Ordovician.

scholarly journals New Records of Horsehair Worms (Nematomorpha) from India and a Summary of All Known Indian Species

Taxonomy ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 14-22
Author(s):  
Arun K. Yadav ◽  
Dimos Khynriam ◽  
Limatemjen ◽  
Andreas Schmidt-Rhaesa
Keyword(s):  
New Records ◽  
Indian Species ◽  
North East ◽  
The North ◽  
East Region ◽  
First Time

Twenty-one species of the phylum Nematomorpha from India have been described. In this paper, Acutogordius sulawensis is reported for the first time in this country, with new locality records of some Chordodes, Gordius and Acutogordius species from the north-east region of India. The total number of nematomorph species now known from India is thus raised to twenty-two species. This paper supplements information about nematomorph species added to the Indian fauna after 2004.

Dugongs in Australian Waters

Oryx ◽  
1966 ◽  
Vol 8 (4) ◽  
pp. 221-222 ◽  
Author(s):  
Colin Bertram ◽  
Kate Bertram
Keyword(s):  
Shallow Water ◽  
Aquatic Plants ◽  
Ecological Niche ◽  
Native People ◽  
North East ◽  
The North ◽  
Aquatic Mammals

In their 1965 survey of dugongs on the north-east Australian coast, Dr. Colin and Dr. Kate Bertram made the welcome discovery that these aquatic mammals, whose numbers were seriously reduced throughout their range in the last century and the early decades of this, are now holding their own here and may even in a few places be increasing. Dugong meat and oil are highly valued by some Australian native people, and the animals fill an important ecological niche as consumers of aquatic plants in shallow water.

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