scholarly journals Preliminary data of the scuttle flies (Diptera: Phoridae) in the linden-oak-hornbeam forest of the Wigry National Park, North East Poland

2020 ◽  
Vol 63 (1) ◽  
pp. 47-52
Author(s):  
Ewa DURSKA ◽  

Faunistic data on 66 species of geophilous scuttle flies cought by emergence traps placed in 6 sites of the linden-oak-hornbeam forest in the Wigry National Park in summer season of 2017 and 2018 are presented. About 60% of the individuals captured each year were species with at least 10 individuals. The same four dominants: Megaselia pulicaria-complex, M. flava, M. abdita and Gymnophora arcuata reached the highest abundance in the compared communities during both study seasons. Species with known biology accounted for only half of the captured species, but among them the most numerous (82%) were species whose larvae were classified as sapro-/necro- and mycophagous.

Phytotaxa ◽  
2018 ◽  
Vol 374 (3) ◽  
pp. 185 ◽  
Author(s):  
FABIÁN A. MICHELANGELI ◽  
RENATO GOLDENBERG

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.


Koedoe ◽  
2001 ◽  
Vol 44 (1) ◽  
Author(s):  
B.P. Moon ◽  
G.L. Heritage

The Letaba River drains part of Northern Province in north-east South Africa. Its catchment has been modified significantly by human activity which has affected the flow regime; it experiences only ephemeral flows through the Kruger National Park to its confluence with the Olifants River. Although the Letaba is similar to the other rivers in the Kruger National Park in that it displays some bedrock influenced channel features, increased sediment delivery from the degraded catchment upstream has resulted in extensive alluviation within the channel. Sections of channel flowing over bedrock with no sediment covering are rare, and the river comprises a series of channel types: mixed anastomosing, alluvial braided, mixed pool-rapid and alluvial single thread. Each is characterised by a different combination of morphological units which relate to the degree of alluviation in the channel. These channel types are described in detail and inferences are made concerning their formation and maintenance from field observation and measurement.


Zootaxa ◽  
2007 ◽  
Vol 1445 (1) ◽  
pp. 35-48 ◽  
Author(s):  
ASTRID HEIDRICH ◽  
HERBERT RÖSLER ◽  
VU NGOC THANH ◽  
WOLFGANG BÖHME ◽  
THOMAS ZIEGLER

A new species of Cyrtodactylus is described from the Truong Son (Annamite mountain range) of Quang Binh Province in central Vietnam. It is characterized by 3–5 transversal dorsal bands between the limb insertions, a neckband reaching the posterior margin of eye, 19–20 irregular longitudinal rows of dorsal tubercles, forelimbs with tubercles, 47–50 longitudinal rows of ventrals at midbody, 9–11 precloacal pores in an angular series in males and 16–27 enlarged precloacal scales in both sexes, 20–23 lamellae below the 4th toe, a segmented tail, and lacking of a distinct ventrolateral fold, a precloacal groove and femoral pores, as well as transversally enlarged subcaudal plates. The new species is known only from the karst forests of Phong Nha - Ke Bang National Park. Preliminary data on its natural history are provided.


Author(s):  
Sylwia Szporak ◽  
Dorota Mirosław-Świątek ◽  
Jarosław Chormański

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.


2011 ◽  
Vol 30 (3) ◽  
pp. 83-99
Author(s):  
Marek Półrolniczak

Sensible temperature at the Łeba Sandbar (Słowiński National Park) on selected days of the 2010 summer season The analysis was performed on the basis of weather measurements conducted in the Słowiński National Park at the Łeba Sandbar in the period from 8th July to 6th August 2010. Two biometeorological indices were calculated: the effective temperature (ET) and the radiative-effective temperature (RET). The daily course of RET was used to select the typical days, which were then subjected to a detailed analysis. This consisted in assessing the influence of individual meteorological elements and the synoptic situation on the development of the values of the RET and ET indices. A considerable diversity of sensible conditions was determined, as well as the considerable variability thereof during the day, in particular during the movement of atmospheric fronts. The sensible conditions were also influenced by factors connected with local circulation and the presence of the sea. Finally, a considerable decrease in the values of RET and ET was observed during changes in wind direction, namely when the wind was blowing from the northern sector.


Turyzm ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 71-78
Author(s):  
Justyna Mokras-Grabowska

Tatra National Park is the most frequently visited national park in Poland. During the peak season (summer), it attracts both ‘fully aware’ tourists, properly prepared for mountain hiking, and ‘casual’ hikers, motivated mainly by the shallow desire to ‘tick off’ the most popular places in the highest Polish mountains. The article describes the specific character of mountain hikers in Tatra National Park during the summer season, with particular attention paid to the motivations and skills involved in active tourism.


Oryx ◽  
1982 ◽  
Vol 16 (4) ◽  
pp. 352-357 ◽  
Author(s):  
Eric L. Edroma

The northern race of the square-lipped rhinoceros Ceratotherium simum cottoni is disappearing in Africa and is now believed extinct in Uganda. Commonly called the white rhinoceros because of its wide (weit) square mouth, it differs from the black rhino in size, habits and disposition. The white rhino occurred naturally in three countries: the West Nile Province of Uganda, north-east Zaire, and the Bahr el Ghazal and Equatorian provinces of Sudan. The Nile limited its eastern spread, although fossils show that it existed in Tanzania some 400,000 years ago. Its extreme southern limit was the river Ora which enters the Nile opposite Wadelai, from where it extended northwards along the western bank of the Nile through to Shambe, and then north-west through the Bahr el Ghazal drainage to the borders of Chad, where in the 1890s it was abundant. Harper reported the collection of many rhino horns yearly in Abecher. At the beginning of this century Sidney described the species as numerous in the upper waters of the Bahr Azoum and the Bahr Aoule, plentiful in the Birao area, fairly numerous north of the Uele river in what is today in Zaire's Garamba National Park, and abundant in Okolo, Aringa and West Madi in Uganda.18Rhinos were so common in all these areas that in 1919 Theodore Roosevelt's headquarters for the Smithsonian African Expedition collecting rhino products was named Rhino Camp. Here in 1932 Captain Pitman encountered 30–40 groups of at least seven individuals each within a day's walk, and he could approach to within 7–8ft because they were unharried by hunters and poachers.


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