THE OCCURENCE OF THE EURASIAN OTTER LUTRA LUTRA IN AQUATIC HABITATS OF DIFFERENT TROPHY IN WIGRY NATIONAL PARK
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2018, Vol 48, Issue 345
Abstract
The standard method was used for the first field survey of the Eurasian otter Lutra lutra distribution in all aquatic habitats in Wigry National Park (WNP) in northern Poland. Total of 59 study sites (48 on lakes, 8 on rivers and 3 on drainage ditches) were visited twice between 12th and18th of March and between 8th and 13th of May 2018. Signs of otters were found in 42 (71.2%) sites located throughout the whole area of Wigry National Park. The percentage of positive sites reached 100% in mesotrophic and eutrophic lakes as well as in rivers and meliorated canals. No signs of otter presence were recorded in dystrophic lakes located in the centre of peat-bogs. This marked difference in otter occurrence can be explained in the terms of different food availability: high in mesotrophic and eutrophic habitats and low in dystrophic lakes.
Authors and Affiliations
Jerzy ROMANOWSKI, Małgorzata JANUSZEWICZ, Beata GRZEGRZÓŁKA
Keywords
Related Articles
- EP ID EP435442
- DOI -
- Views 82
- Downloads 0
THE EFFECT OF SOIL MULCHING ON THE YIELDING OF HARDY KIWIFRUIT CULTIVARS (Actinidia arguta) IN CENTRAL POLAND
Kiwiberry, or hardy kiwifruit (Actinidia arguta) is a new pomological plant in Poland. There are many possibilities for setting up an orchard with this species. However, Actinidia is susceptible to late spring frost. Sum...
RATING LONG-TERM USE OF SIMPLIFICATIONS IN TILLAGE AND PREVIOUS CROP ON BIOMETRIC FEATURES, PHYSIOLOGICAL AND YIELD OF WINTER WHEAT CULTIVAR ‘Kobra Plus’
The study was conducted in the years 2006–2008, in a static experiment founded in 1993 in the Agricultural Experimental Station Lipnik (near Stargard Szczeciński). The station is located in the central part of the Szczec...
EVALUATION OF TOXICITY OF BIOLOGICALLY SYNTHESIZED SILVER NANOPARTICLES (Ag-NPs) USING LEMNA TEST AND ALGALTOXKIT F
In the current study the toxicity of biologically synthesized Ag-NPs to Selenastrum capricomutum and Lemna minor was assessed. The supernatants from the Bacillus subtilis cultures were applied for the Ag-NPs synthesis. T...
DRUG TOLERANCE/INTOLERANCE IN DOMESTIC DOG (Canis lupus familiaris) WITH MDR1 GENE DEFECT
Ivermectin is a drug used to fight endo- and exoparasites in animals at regular base in veterinary practice. Basically this substance is safe for mammals. The mechanism of its action is based on dysfunction of nerve impu...
Puccinia coronata f.sp. avenae VIRULENCE IN CENTRAL AND SOUTH-EASTERN POLAND IN 2014
Losses caused by Puccinia coronata f. sp. avenae are an almost universal problem for oat growers. Mild winters and wet summers are conducive to fungal growth, leading to recurrent annual infection in Poland and consequen...