Eristalis tenax L. (Diptera: Syrphidae) is commonly known as the drone fly (adult) or rat-tailed maggot (immature). Both adults and immature stages are identified as potential mechanical vectors of mycobacterial pathogens, and early-stage maggots cause accidental myiasis. We compared four samples from Mount Fruška Gora, Serbia, with the aim of obtaining insights into the temporal variations and sexual dimorphism in the species. This integrative approach was based on allozyme loci, morphometric wing parameters (shape and size) and abdominal colour patterns. Consistent sexual dimorphism was observed, indicating that male specimens had lighter abdomens and smaller and narrower wings than females. The distribution of genetic diversity at polymorphic loci indicated genetic divergence among collection dates. Landmark-based geometric morphometrics revealed, contrary to the lack of divergence in wing size, significant wing shape variation throughout the year. In addition, temporal changes in the frequencies of the abdominal patterns observed are likely to relate to the biology of the species and ecological factors in the locality. Hence, the present study expands our knowledge of the genetic diversity and phenotypic plasticity of E. tenax. The quantification of such variability represents a step towards the evaluation of the adaptive potential of this species of medical and epidemiological importance.
Cilj rada jeste ukazati na izazove, prepreke i probleme u realizaciji individualnog obrazovnog plana u Srbiji, kao i prikazati pozitivne preporuke iz prakse i implikacije za buduću upotrebu. Kvalitet obrazovanja često se izjednačava sa kvalitetom inkluzije, a kako je stepen participacije dece i učenika u obrazovnom procesu jedan od ključnih parametara kvaliteta inkluzije, posebno se prepoznaje značaj dodatnih mera podrške učešću dece iz osetljivih grupa u procesu obrazovanja. Većina roditelja učenika koji se obrazuju po IOP-u izveštavaju o napredovanju njihove dece u redovnim osnovnim školama, dok škole izveštavaju da 70% učenika koji se obrazuju po IOP-u ostvari napredak između dve revizije IOP-a. Najveće efekte primene IOP-a zaposleni u školama vide u integraciji učenika u vršnjačku grupu, redovnosti pohađanja nastave i senzitizaciji drugih učenika što ukazuje na značaj primene IOP-a. Međutim, određeni problemi u realizaciji IOP-a mogu da uspore napredak i integraciju učenika kojima se pruža ova vrsta dodatne podrške, kao i da dovedu do smanjene učestalosti primene IOP-a. U radu je korišćen pregled literature u domaćim i stranim časopisima objavljenim u poslednjih 5 godina na srpskom i engleskom jeziku. Izdvojeni članci su navedeni i analizirani u radu. Podaci koji su prikupljeni na opisane načine su potom sistematizovani, analizirani i iz njih su izvedeni zaključci i preporuke ove studije. Predstavljeni rezultati prikazuju složenu sliku realizacije IOP-a, iako je usvojen pre više od decenije i široko se koristi, još uvek nije u potpunosti prihvaćen u školama u Srbiji i različiti obrazovni sistemi bore se sa sličnim problemima.
Genetic monitoring, as one of the main aspects in long-term population monitoring, has a crucial role in establishing an effective management strategy and biological conservation of wildlife. Determination and monitoring of genetic variability as well as identification of management units, represents the best estimator of natural population potential for adaptation and survival. Here we present a comparative overview of data obtained through genetic monitoring of three wildlife species in Serbia - brown hares, wild boars and grey wolves. First determination of genetic variability in brown hares from Serbia recommended an optimal three-year monitoring period for this species and continual genetic monitoring has revealed maintenance of moderate genetic diversity over a twenty-year period. Furthermore, it is suggested that future genetic monitoring should encompass more informative molecular markers, such as those linked to adaptive traits. Microsatellite molecular markers have provided much of the required information about the wild boar population. The wild boar is one of the most important game species and is crucial to estimate adequate management measures in order to preserve genetic variability, but also, to prevent possible territorial expansion of the species. Panel of 18 microsatellite loci proved to be very informative when it comes to the grey wolf population. Serbian wolf population is relatively stable for now, but it is very important to maintain appropriate genetic monitoring to preserve this valuable reservoir of genetic variability. The results, obtained through genetic monitoring of these three species in Serbia, support integration of genetic information with other traditional methods for hunting management strategy in order to provide a long-term sustainability.
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