Primerjava različnih sredstev za odvračanje sive vrane (Corvus cornix) z obdelovalnih površin

diplomsko delo - visokošolski strokovni študij - 1. stopnja

Tim Pirc (Author), Klemen Jerina (Mentor), Dejan Bordjan (Co-mentor)

Abstract

Siva vrana (Corvus cornix) je ena pogostejših ptičjih vrst tako na podeželju kot v mestih. So vsejede, zaradi visoke inteligence so zmožne priti do hrane, do katere druge vrste ne morejo. Kljub rednem poseganju med vrane z odstrelom, s katerim se skuša nižati njihovo številčnost oz. lokalne gostote, vrane povzročajo škodo v mestih in na podeželju. Ljudje se za odvračanje poslužujejo različnih tehnik od postavljanja ptičjih strašil do uporabe pirotehnike. Ena izmed metod, ki se je uporabljala v preteklosti in je v uporabi še danes, je obešanje kadavrov vran na kole. Ta metoda lahko na izpostavljenih krajih povzroči negativne odzive javnosti. Med pregledovanjem virov nismo odkrili nobenih, ki bi opisovali učinkovitost in uspešnost te metode. V našem poskusu smo primerjali uspešnost treh metod odvračanja (z maketo vrane, maketo kanje, kadavrom vrane) in jih primerjali s kontrolo (brez ukrepa). Odvračalni poskus smo opravili na deponiji odpadkov mesta Ljubljana. Učinke smo spremljali s fotopastmi. Uspešna sta bili metodi z maketo kanje in kadavrom vrane, pri katerih je bilo znatno manj prisotnih sivih vran kot pri metodi z maketo vrane, ki je delovala bolj privabljalno kot odvračalno.

Keywords

siva vrana;Corvus cornix;odvračanje;kadavri;makete;ptice;

Data

Language:	Slovenian
Year of publishing:	2018
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[T. Pirc]
UDC:	63014:63015(043.2)=163.6
COBISS:	5182886
Views:	5018
Downloads:	396
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Comparison of the various means of deterring gray crows (Corvus cornix) of arable land
Secondary abstract:	Hooded crows (Corvus cornix) are one of the most common bird species both in rural and in urban areas. They are omnivores and because of the high intelligence, they are able to get food which other species cannot reach. Despite regular intervention by hunting which tries to reduce their abundance or local density, crows cause damage in cities and in the countryside. People use different techniques for deterring crows, e.g. with the use of pyrotechnics and placing bird scarecrows. One of the methods used in the past and still in use today is hanging up the crow cadavers on posts. However, this method can lead to negative public reactions in exposed places. In literature review we did not find any source which describes the efficiency and effectiveness of this method. In our experiment, we compared the performance of three methods of deterrence (with a crow%s model, a model of a buzzard, and a crow cadaver) and compared them with control situation (without a measure). A deterring test was carried out at the Ljubljana landfill site. We monitored the effects with camera traps. Successful were the methods of implementing the buzzard model and the crow cadaver, which significantly reduced the presence of crows in comparison with the method of the crow model, which was for crows more attractive than dissuasive.
Secondary keywords:	hooded crow;Corvus cornix;scaring;carcasses;models;birds;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za gozdarstvo in obnovljive gozdne vire
Pages:	VIII f., 34 f.
ID:	10959830