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Title:Pregled metod štetja kupčkov iztrebkov za ocenjevanje številčnosti rastlinojedih parkljarjev
Authors:ID Kavčič, Irena (Author)
ID Pokorny, Boštjan (Author)
ID Jerina, Klemen (Author)
Files:.pdf PDF - Presentation file, download (159,42 KB)
MD5: DF264160B14153E40FEA4F60B302C7EB
PID: 20.500.12556/dirros/cf16d999-c525-4748-b408-850945f6ec8b
 
Language:Slovenian
Typology:1.02 - Review Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Poznavanje številčnosti in lokalnih gostot populacij rastlinojedih parkljarjevje pomembno pri reševanju številnih upravljavskih in temeljno-bioloških vprašanj. Po svetu se za ocenjevanje številčnosti parkljarjev pogosto uporabljajo metode štetja kupčkov iztrebkov, ki pa so pri nas ostale več ali manj prezrte. Z namenom spodbujanja njihove rabe smo pripravili celosten pregled metod s priporočili za Slovenijo. Uveljavljena stadva načina izvedbe, t.j. s predhodnim čiščenjem in brez čiščenja kupčkov iztrebkov; pri slednjem moramo oceniti tudi čas razgradnje iztrebkov, ki se lahko med mikrohabitati in letnimi časi močno spreminja, zato tega načina ne priporočamo. Vzorčenje lahko poteka na vzorčnih ploskvah različnih oblik in velikosti ali z metodo linijskega transekta; izbira konkretne metode je odvisna od pričakovane gostote parkljarjev in preglednosti terena, ki pogojujemožnost zaznavanja iztrebkov. Zaradi heterogenosti habitatov je raziskovalno območje priporočljivo predhodno stratificirati po habitatni primernosti glede na pričakovane gostote parkljarjev. Stopnje iztrebljanja (t.j. število izločenih kupčkov iztrebkov / dan) se znotraj vrst spreminjajo glede na letni čas, spol in starost živali, vendar zaradi primerljivosti rezultatov svetujemo uporabo konstantnih stopenj (za jelenjad 25 in za srnjad 20 kupčkov iztrebkov) ter večkratno ponovitev vzorčenja v različnih letnih časih, s čimer pokrijemo sezonske razlike v rabi prostora. Na natančnost rezultatov vplivata predvsem priprava in izvedba vzorčenja, zato je treba tej fazi dela posvetiti veliko pozornost.
Keywords:prostoživeči prežvekovalci, metoda štetja kupčkov iztrebkov, stopnja iztrebljanja, razgradnja iztrebkov
Publication status:Published
Publication version:Version of Record
Year of publishing:2010
Number of pages:str. 31-42
Numbering:Vol. 91
PID:20.500.12556/DiRROS-7238 New window
UDC:591.5:502.1
ISSN on article:0351-3114
URN:URN:NBN:SI:doc-BVGJKZHQ
COBISS.SI-ID:1064662 New window
Publication date in DiRROS:12.07.2017
Views:5579
Downloads:2016
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva. forest and wood science & technology
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 New window

Secondary language

Language:Undetermined
Title:Review of faecal pellet-group count methods for estimating deer numbers
Abstract:Knowledge of abundance and local densities of deer populations is important inmanagement as well as in biological context. Faecal pellet-group count method, widely used around the world for estimating deer numbers, has been almost neglected in our country. Therefore, we have prepared a comprehensive overview of the method with recommendations for Slovenia to enhance its use. In principle, there are two ways to perform the faecal pellet-group count method, i.e. clearance plot and standing crop method. The latter is not recommended in a daily management practice, as it requires faecal pellet-groupdecay rate estimation, which is rather season and microhabitat specific. Sampling can be done on sampling plots of different shapes and sizesor with the line transect method. Sampling design depends on expected deer densities and ground cover dependent pellet-group detectability. Since distinct habitats are used differentially by the deer, study area stratification on specific habitat types regarding the expected deer densitiesis recommended. Within the species, defecation rates (i.e. number of pellet-groups per day) vary according to season, animal age and gender; nevertheless, due to comparative reasons we recommend the use of constant defecation rates (i.e. 25 for the red deer, 20 for the roe deer, respectively). Moreover, multiple samplings are needed to cover seasonal variety in habitat use. Sampling design is of a major importance for the success of the method and has the biggest impact on the precision of deer numbers/densities estimates, therefore much effort should be devoted to this stage.


Collection

This document is a part of these collections:
  1. Acta Silvae et Ligni

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