Search results for "Larus"

Joint Venture Formation Influencing Factors within the Aspect of Economic Policy Implemented in Belarus from EU Business Prospective

2013

The aim of the paper is to perform analysis from the EU business point of view about the particularities of the creation of joint ventures in the EU neighbour country Belarus. The possibilities of economic collaboration are studied in the frame of the impact of Belarus political regime on the entrepreneurship and business activities. The research is focusing on the factors influencing business environment. Even if the business environment due to the strong intervention of State in Belarus is not very favourable for the entrance of foreign investments, the main benefits for EU interests in this country are: the importance and size of this market and the possibilities to go through the Custom…

Intertextualität im Roman Quatemberkinder von Tim Krohn

2015

Tässä työssä tarkastellaan Tim Krohnin romaania Quatemberkinder ja etsitään intertekstuaalisia viitteitä Sveitsin Glarus-kantoonin alueella esiintyviin myyttisiin kertomuksiin. Lähteenä toimii Kaspar Freulerin ja Hans Thürerin kokoelmateos Glarner Sagen, joka sisältää kertomuksia kyseisestä kantoonista. Romaani tulkitaan hyväksi esimerkiksi intertekstuaalisuudesta sen sisältämien historiallisten ja kulttuuristen viitteiden ansiosta. Tutkielmassa esitetään, että romaanissa on käytetty intertekstuaalisuutta niin saagojen osalta kuin myös oikeiden historiallisten tapahtumien osalta. Historiaa ja saagoja on yhdistetty niin, että ne antavat kirjalle maagisen realismin piirteitä. Romaani nähdään …

Gavina cendrosa, gavinot hiperbori, Gaviota cana (VER0000112)

1932

Altres noms vulgars: Mew Gull (Anglès), Goéland cendré (Francès), Sturmmöwe (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 8-1 Europa 1932

Gavina, Gaviota (VER0000110)

1934

Altres noms vulgars: _ (Anglès), _ (Francès), _ (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 8-1 Costa valenciana 1934 Juvenil sp. _

Gavina capblanca, Gaviota picofina (VER0000111)

Altres noms vulgars: Slender-billed Gull (Anglès), Goéland railleur (Francès), Dünnschnabelmöwe (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 8-1 Mar Menor

Contamination by trace metals and their trophic transfer to the biota in a Mediterranean coastal system affected by gull guano

2013

Transitional environments are vulnerable interface systems, ecologically connected with adjacent systems by several biotic or abiotic flows. The coastal system of the Marinello ponds (Tyrrhenian Sea, Italy) is affected by a colony of yellow-legged gulls Larus michahellis (Naumann, 1840), resident on the cliff beside the ponds. To investigate the role of the gull colony as a potential source of allochthonous non-essential trace metals (As, Cd, Pb and total mercury, THg) and the consequent metal trophic transfer to the biota in the ponds, we collected guano, surface sediment and biota from 3 ponds with different levels of avian input. The highest concentrations were observed in guano and surf…

Gull-derived trace elements trigger small-scale contamination in a remote Mediterranean nature reserve

2013

The role of a yellow-legged gull (Larus michahellis) small colony in conveying trace elements (As, Cd, Cr, Cu, Ni, Pb, THg, V, Zn) was assessed in a Mediterranean nature reserve (Marinello ponds) at various spatial and temporal scales. Trace element concentrations in guano were high and seasonally variable. In contrast, contamination in the ponds was not influenced by season but showed strong spatial variability among ponds, according to the different guano input. Biogenic enrichment factor B confirmed the role of gulls in the release of trace elements through guano subsidies. In addition, comparing trace element pond concentrations to the US NOAA’s SQGs, As, Cu and Ni showed contamination …

Effects of a small seagull colony on trophic status and primary production in a Mediterranean coastal system (Marinello ponds, Italy)

2012

Abstract Colonies of seabirds have been shown to influence nutrient cycling and primary production of coastal areas, but knowledge is still limited above all for smaller colonies. This study evaluates the influence of a small resident seagull colony (Larus michahellis Naumann, 1840) on a Mediterranean coastal system (Marinello ponds, Sicily, Italy). The presence of ornithogenic organic matter from seagull guano was first assessed at increasing distances from the colony using δ15N to indicate the effects of guano on the trophic status and primary production. The pond directly affected by guano deposition showed an anomalous water and sediment chemistry, especially regarding physico-chemical …

Ring species – Do they exist in birds?

2007

Abstract According to current theory, the splitting of a single species into two is best observed by a ring of intergrading populations which occupy a ring-shaped distribution area and whose terminal populations not only meet but overlap and co-occur without or with only little hybridization. The three most discussed examples in birds are revisited here. The great tit complex ( Parus major s. l.) turned out to be an assemblage of four subspecies groups forming a secondary ring of population. The herring gull/lesser black-backed gull complex ( Larus argentatus s. l.) forms a circumpolar circle of intergrading populations, but lacks the crucial cornerstone, the geographical overlap. The green…

Changes in the Breeding Bird Fauna, Waterbird Populations in Particular, on Lake Engure (Latvia) over the Last 50 Years

2005

The nesting bird fauna (186 species) of Lake Engure and its surroundings has changed considerably over the last 50 years: 18 species have appeared as newcomers (among them 56% of southern, 6% of northern origin), 10 species have ceased nesting (among them 60% of northern, 10% of southern origin). These changes might be explained by global warming. Dramatic changes recorded in all waders can be accounted for by the local habitat loss and a general decline in wider geographic ranges. The Black-headed Gull (Larus ridibundus) population increased from 200 pairs in 1940s to 34,000 pairs in 1986, and then declined to 4,200 pairs in 2002. Nesting duck (all species combined) numbers and their nesti…