<p>Основни приступ истраживању стратегије развоја хотел менаџмента и одрживог развоја у заштићеним природним подручјима Србије, проистиче из потребе детаљне туристичке валоризације и истовременог очувања заштићених подручја. Природне и антропогене туристичке вредности заштићених предела Србије бројне су и разноврсне. Међутим развој туризма у истим није сразмеран потенцијалима. Валоризација ових простора и пословање објеката хотелијерства у њима почива на традиционалним основама и не даје задовољавајуће резултате. Већим туристичким прометом истичу се Национални парк Копаоник, Национални парк Тара, Национални парк Ђердап, Парк природе Палић и Специјални резерват природе Лудошко језеро. У заштићеним природним пределима не треба да постоји дилема између комерцијалног и одрживог туризма. Стратегија развоја хотел менаџмента у србији треба да уважава позитивне и проверене ставове из света и да их прилагођава нашој стварности, посебно у заштићеним пределима, уважавајући реалне капацитете простора.</p> / <p>Osnovni pristup istraživanju strategije razvoja hotel menadžmenta i održivog razvoja u zaštićenim prirodnim područjima Srbije, proističe iz potrebe detaljne turističke valorizacije i istovremenog očuvanja zaštićenih područja. Prirodne i antropogene turističke vrednosti zaštićenih predela Srbije brojne su i raznovrsne. Međutim razvoj turizma u istim nije srazmeran potencijalima. Valorizacija ovih prostora i poslovanje objekata hotelijerstva u njima počiva na tradicionalnim osnovama i ne daje zadovoljavajuće rezultate. Većim turističkim prometom ističu se Nacionalni park Kopaonik, Nacionalni park Tara, Nacionalni park Đerdap, Park prirode Palić i Specijalni rezervat prirode Ludoško jezero. U zaštićenim prirodnim predelima ne treba da postoji dilema između komercijalnog i održivog turizma. Strategija razvoja hotel menadžmenta u srbiji treba da uvažava pozitivne i proverene stavove iz sveta i da ih prilagođava našoj stvarnosti, posebno u zaštićenim predelima, uvažavajući realne kapacitete prostora.</p> / <p>l management should draw on positive and tried-and-tested approaches applied internationally and adapt them to our reality, especially in the protected areas bearing in mind their realistic capacities. There should not be conflict between commercial and sustainable tourism in the protected natural areas. The protection regime is determined and firmly defined and thus close to the approach of sustainable tourism development. In this context, the hotel management strategy as its clear conclusion identifies the need for the realisation of the following activities and measures: ownership transformation in hotel facilities, redirection of capacities to market business operation. Raising the service level, expansion of the options offered to visitors, working together with facilities in the vicinity to make a joint offer of services, qualification of personnel for all jobs and types of work, business planing for individual seasons and the whole year.</p>

Invasive exotic species threaten the biodiversity and function of native ecosystems. Existing models, attempting to predict and control successful invaders, often emphasize isolated stages of in their life history and fail to formalize interactions between exotic species and recipient environments. In order to elucidate key mechanisms in the success of select invaders, I investigated the role of dispersal, establishment, proliferation, and persistence in their threat to natural areas. Focusing on Riding Mountain National Park, Manitoba, Canada, I integrated the native climatic range and biological traits of 251 exotic vascular plants reported inside and outside the park. Based on their climatic range in Europe, 155 among 174 exotic plant species absent from the Park were predicted to establish within its boundaries; among these, 40 clonal perennials were considered the highest threat to the Park’s biodiversity. Focusing on smooth brome (Bromus inermis Leyss.), a Eurasian perennial, threatening the structure and function of native prairies throughout the Great Plains, I extended my research to investigate the role of dispersal, establishment, proliferation, and persistence in characterizing its threat to the endemic diversity of northern fescue prairies, protected within Riding Mountain National Park. Patterns of smooth brome invasions were contingent on the type of propagules dispersed. The shallow dispersal gradient of individual florets combined with the steeper gradient of panicles and spikelets suggested that smooth brome is capable of simultaneously invading along dense fronts as well as by establishing isolated foci. While low correlations between the number of dispersed seeds and their recruitment suggested post-dispersal transport, seedling establishment remained contingent on prairie diversity. Seedling biomass increased with declining plant diversity, however, its impact depended on the availability of soil nitrogen. As a result, disturbed areas, preserving the root function of native plants, resisted smooth brome establishment. Even though low nitrogen contributed to a decline in seedling biomass, physiological integration between ramets facilitated their vegetative proliferation in low resource environments. Despite its rapid establishment and proliferation, smooth brome productivity declined at the center of invading clones. Although field and greenhouse observations failed to implicate soilborne pathogens, reasons for the observed decline remain unresolved. My research demonstrates that while Riding Mountain National Park and other natural areas in western Canada will continue to be impacted by exotic plants, integrating key stages in their life history provides an important conceptual framework in predicting their threat to natural areas and prioritizing management. / October 2008

Invasive exotic species threaten the biodiversity and function of native ecosystems. Existing models, attempting to predict and control successful invaders, often emphasize isolated stages of in their life history and fail to formalize interactions between exotic species and recipient environments. In order to elucidate key mechanisms in the success of select invaders, I investigated the role of dispersal, establishment, proliferation, and persistence in their threat to natural areas. Focusing on Riding Mountain National Park, Manitoba, Canada, I integrated the native climatic range and biological traits of 251 exotic vascular plants reported inside and outside the park. Based on their climatic range in Europe, 155 among 174 exotic plant species absent from the Park were predicted to establish within its boundaries; among these, 40 clonal perennials were considered the highest threat to the Park’s biodiversity. Focusing on smooth brome (Bromus inermis Leyss.), a Eurasian perennial, threatening the structure and function of native prairies throughout the Great Plains, I extended my research to investigate the role of dispersal, establishment, proliferation, and persistence in characterizing its threat to the endemic diversity of northern fescue prairies, protected within Riding Mountain National Park. Patterns of smooth brome invasions were contingent on the type of propagules dispersed. The shallow dispersal gradient of individual florets combined with the steeper gradient of panicles and spikelets suggested that smooth brome is capable of simultaneously invading along dense fronts as well as by establishing isolated foci. While low correlations between the number of dispersed seeds and their recruitment suggested post-dispersal transport, seedling establishment remained contingent on prairie diversity. Seedling biomass increased with declining plant diversity, however, its impact depended on the availability of soil nitrogen. As a result, disturbed areas, preserving the root function of native plants, resisted smooth brome establishment. Even though low nitrogen contributed to a decline in seedling biomass, physiological integration between ramets facilitated their vegetative proliferation in low resource environments. Despite its rapid establishment and proliferation, smooth brome productivity declined at the center of invading clones. Although field and greenhouse observations failed to implicate soilborne pathogens, reasons for the observed decline remain unresolved. My research demonstrates that while Riding Mountain National Park and other natural areas in western Canada will continue to be impacted by exotic plants, integrating key stages in their life history provides an important conceptual framework in predicting their threat to natural areas and prioritizing management.

Invasive exotic species threaten the biodiversity and function of native ecosystems. Existing models, attempting to predict and control successful invaders, often emphasize isolated stages of in their life history and fail to formalize interactions between exotic species and recipient environments. In order to elucidate key mechanisms in the success of select invaders, I investigated the role of dispersal, establishment, proliferation, and persistence in their threat to natural areas. Focusing on Riding Mountain National Park, Manitoba, Canada, I integrated the native climatic range and biological traits of 251 exotic vascular plants reported inside and outside the park. Based on their climatic range in Europe, 155 among 174 exotic plant species absent from the Park were predicted to establish within its boundaries; among these, 40 clonal perennials were considered the highest threat to the Park’s biodiversity. Focusing on smooth brome (Bromus inermis Leyss.), a Eurasian perennial, threatening the structure and function of native prairies throughout the Great Plains, I extended my research to investigate the role of dispersal, establishment, proliferation, and persistence in characterizing its threat to the endemic diversity of northern fescue prairies, protected within Riding Mountain National Park. Patterns of smooth brome invasions were contingent on the type of propagules dispersed. The shallow dispersal gradient of individual florets combined with the steeper gradient of panicles and spikelets suggested that smooth brome is capable of simultaneously invading along dense fronts as well as by establishing isolated foci. While low correlations between the number of dispersed seeds and their recruitment suggested post-dispersal transport, seedling establishment remained contingent on prairie diversity. Seedling biomass increased with declining plant diversity, however, its impact depended on the availability of soil nitrogen. As a result, disturbed areas, preserving the root function of native plants, resisted smooth brome establishment. Even though low nitrogen contributed to a decline in seedling biomass, physiological integration between ramets facilitated their vegetative proliferation in low resource environments. Despite its rapid establishment and proliferation, smooth brome productivity declined at the center of invading clones. Although field and greenhouse observations failed to implicate soilborne pathogens, reasons for the observed decline remain unresolved. My research demonstrates that while Riding Mountain National Park and other natural areas in western Canada will continue to be impacted by exotic plants, integrating key stages in their life history provides an important conceptual framework in predicting their threat to natural areas and prioritizing management.