Wydanie 358(57)1 2021

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https://oa.zut.edu.pl/handle/20.500.12539/684

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Przeglądaj Wydanie 358(57)1 2021 wg Temat "Dyscyplina::Nauki rolnicze::Zootechnika i rybactwo"

Teraz wyświetlane 1 - 3 z 3
  • Miniatura
    PozycjaOpen Access
    Monitoring Proposal of the Species Montane Guinea Pig in Peru
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2021) Kędra, Adrianna; Faculty of Animal Breeding, Bioengineering and Conservation, Warsaw University of Life Sciences–SGGW, Warszawa, Poland
    The work presents a proposal for the monitoring of a species of medium size South American rodent – Montane Guinea Pig. The population of this species is not constantly monitored, so it is impossible to determine exactly how many individuals are in the wild. In recent years, the area of its habitat has been significantly reduced. Therefore, it was necessary to develop methods of its monitoring. Monitoring has been proposed in several areas of its occurrence: the province of the Lima district – Cercado de Lima, the Junín National Reserve, and the province of the city of Ambo. The main aim of the article is to define population status indicators, habitat quality indicators, and to establish examples of dates and frequency of tests.
  • Miniatura
    PozycjaOpen Access
    Proposal of the Monitoring Methodology of the Green Hawker Aeshna viridis Eversmann, 1836 (Odonata: Aeshnidae)
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2021) Ołdak, Krystian A.; Faculty of Animal Breeding, Bioengineering and Conservation, Warsaw University of Life Sciences – SGGW, Warszawa, Poland
    Aeshna viridis, a species of dragonfly of the family Aeshnidae, is listed in Appendix II of the Bern Convention as well as Annex IV of the Habitats Directive. The decline in the range and abundance of A. viridis is associated with a strong dependence of this species on the presence of Stratiotes aloides in the water body and results from a decrease in the number of suitable habitats. So far, attempts to develop a monitoring methodology for this species have been made in several European countries, including Sweden, Denmark and the Netherlands. This article presents a proposal for a monitoring methodology based on the evaluation of indicators of population condition in the form of exuviae density and number of adults, and indicators of habitatcondition: the area of the water body covered by S. aloides, the presence of dense and undivided patches of S. aloides, succession in the water body and anthropopressure. The concept of population condition assessment methodology is based on observation of adult specimens and collecting exuviae, avoiding larvae sampling, which is invasive and associated with technical difficulties. The concept of the habitat condition assessment methodology, in turn, is based on strong association between A. viridis and S. aloides. It is proposed to monitoring A. viridis population on a minimum of several research areas within the country, on a two-year cycle. The presented proposal of the monitoring methodology requires pilot studies to be carried out within the A. viridis localities in order to determine the validity of assumptions made in the monitoring methodology.
  • Miniatura
    PozycjaOpen Access
    Proposed Monitoring of Lesser Mouse-Deer Tragulus kanchil
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2021) Walska, Julia; Faculty of Animal Breeding, Bioengineering and Conservation, Warsaw University of Life Sciences, Warszawa, Poland
    The lesser mouse-deer Tragulus kanchil Raffles, 1821 is a small, herbivorous mammal inhabiting regions of Southeast Asia. Unlike other species belonging to the same genus, the lesser mouse-deer is not critically endangered, however the biology and population size of the species are not studied well enough. So far no methods of monitoring of the species condition have been developed and for this reason, an exemplary protocol of the monitoring of lesser mouse-deer is presented in the paper below. The main goal of such studies is to estimate the population size and density, as well as to assess the quality of the habitat occupied by the animals. In order to evaluate the species condition, population and habitat indicators were developed. The methodology of studies is mostly based on counting specimens in transects, together with assessing the habitat quality and availability of food supply. Supplementary methods were suggested, such as genetic testing and using camera traps. Conducting such research is believed to aid in better understanding of the environmental requirements and possible threats, which may have a significant impact on the lesser mouse-deer population. In the future, methods suggested in this paper can be improved or extended so that the matter is examined as comprehensively as possible and suitable conservation measures can be applied.