Bibliografie tematiche / Introduced species

Indice

Articoli di riviste
Tesi
Libri
Capitoli di libri
Atti di convegni
Rapporti di organizzazioni

Letteratura scientifica selezionata sul tema "Introduced species"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 9 giugno 2025

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Introduced species".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Introduced species"

Czeczuga, Bazyli, Bożena Kiziewicz, and Zbigniew Danilkiewicz. "Zoosporic fungi growing on the specimens of certain fish species recently introduced to Polish waters." Acta Ichthyologica et Piscatoria 32, no. 2 (December 31, 2002): 117–25. http://dx.doi.org/10.3750/aip2002.32.2.02.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Mikhaylova, Oksana Yu, Elena S. Trosko, Elena V. Skorospelova, Anna Ya Zemtsova, and Ksenia Yu Guseva. "INTRODUCED HAWTHORN SPECIES TECHNOLOGICAL ASSESSMENT." Bulletin of KSAU, no. 8 (2021): 196–203. http://dx.doi.org/10.36718/1819-4036-2021-8-196-203.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Schlaepfer, Martin A., Paul W. Sherman, Bernd Blossey, and Michael C. Runge. "Introduced species as evolutionary traps." Ecology Letters 8, no. 3 (February 25, 2005): 241–46. http://dx.doi.org/10.1111/j.1461-0248.2005.00730.x.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Amestoy, F., M. Spinetti, and G. Fabiano. "Aquatic species introduced in Uruguay." SIL Proceedings, 1922-2010 26, no. 5 (June 1998): 2170–73. http://dx.doi.org/10.1080/03680770.1995.11901129.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Herbold, Bruce, and Peter B. Moyle. "Introduced Species and Vacant Niches." American Naturalist 128, no. 5 (November 1986): 751–60. http://dx.doi.org/10.1086/284600.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Richard, Melissa, Douglas W. Tallamy, and Adam B. Mitchell. "Introduced plants reduce species interactions." Biological Invasions 21, no. 3 (November 14, 2018): 983–92. http://dx.doi.org/10.1007/s10530-018-1876-z.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Wohlwend, Michael, Dylan Craven, Patrick Weigelt, Hanno Seebens, Marten Winter, Holger Kreft, Wayne Dawson, et al. "Data Descriptor: Pacific Introduced Flora (PaciFLora)." Biodiversity Data Journal 9 (July 20, 2021): e67318. https://doi.org/10.3897/BDJ.9.e67318.

Testo completo

Abstract (sommario):

The Pacific region has the highest density of naturalized plant species worldwide, which makes it an important area for research on the ecology, evolution and biogeography of biological invasions. While different data sources on naturalized plant species exist for the Pacific, there is no taxonomically and spatially harmonized database available for different subsets of species and islands. A comprehensive, accessible database containing the distribution of naturalized vascular plant species in the Pacific will enable new basic and applied research for researchers and will be an important information source for practitioners working in the region.Here, we present PacIFlora, an updated and taxonomically standardized list of naturalized species, their unified nativeness, cultivation and invasiveness status, and their distribution across the Pacific Ocean, including harmonized location denommination. This list is based on the two largest databases on naturalized plants for the region, specifically the Pacific Island Ecosystems at Risk (PIER) and the Global Naturalized Alien Flora (GloNAF) databases. We provide an outlook for how this database can contribute to numerous research questions and conservation efforts.

Gli stili APA, Harvard, Vancouver, ISO e altri

Murzabulatova, F. K., Z. Kh Shigapov, and N. V. Polyakova. "Early Ontogeny of Introduced Hydrangea Species." Russian Journal of Developmental Biology 52, no. 2 (March 2021): 112–19. http://dx.doi.org/10.1134/s1062360421020041.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Hui, Cang. "Introduced species shape insular mutualistic networks." Proceedings of the National Academy of Sciences 118, no. 5 (January 22, 2021): e2026396118. http://dx.doi.org/10.1073/pnas.2026396118.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Kelly, Catherine L., Lin Schwarzkopf, Iain J. Gordon, and Ben Hirsch. "Population growth lags in introduced species." Ecology and Evolution 11, no. 9 (March 9, 2021): 4577–87. http://dx.doi.org/10.1002/ece3.7352.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Tesi sul tema "Introduced species"

Cassey, Phillip. "Comparative Analyses of Successful Establishment Among Introduced Land Birds." Thesis, Griffith University, 2002. http://hdl.handle.net/10072/366398.

Testo completo

Abstract (sommario):

Humankind has redistributed a large number of species outside their native geographic ranges. Although the majority of introduction attempts fail to establish populations, the cumulative negative effect of successful non-native species has been and will continue to be large. Historical records of land bird introductions provide one of the richest sources of data for testing hypotheses regarding the factors that affect the successful establishment of non-native populations. However, despite comprehensive summaries of global avian introductions dating back two decades only very recent studies have examined the successful establishment of non-native bird species worldwide. It is clear that a non-random pattern exists in the types of land bird species that have been chosen by humans to be introduced outside their native range. Out of the 44 avian families from which species have been chosen for introduction almost 70% of introduction attempts have been from just five families (Phasianidae, Passeridae, Fringillidae, Columbidae, Psittacidae). Notably, these families include game species, insectivorous song birds, and species from the pet trade. It has been hypothesised that the fate of introduced species may be determined in part by heritable characteristics that are shared by closely related taxa. In my analyses, I have used current comparative methods to demonstrate that intrinsic eco-physiological characteristics are significant predictors of the worldwide success of introduced land bird species. The results of my analyses contribute to a greater ecological understanding of the traits that correlate with the successful establishment of non-native species. Notably, the three major conclusions that I have drawn from this thesis are: 1. Non-random patterns of successful establishment exist for introduced land bird taxa that have experienced a repeated number of introduction attempts. This result supports the idea that introduced species have an inherent likelihood of either succeeding or failing to establish non-native populations. 2. Eco-physiological traits are important correlates for determining the variability in introduction outcome for non-native land bird species. With reliable information on introduction attempts and taxa-specific traits predictive models are possible that quantify the outcome of repeated introduction attempts across non-native species. 3. Islands are not universally less resistant than mainland regions to the successful establishment of non-native species. This perception is a reflection of the greater number of introduction attempts to islands rather than an effect of biotic resistance. Any differences in the success of introduction attempts can be attributed largely to differences in the proportion of introductions that have been made across biogeographic regions. I have highlighted that data are accessible for global analyses of the variability in the successful establishment of non-native species. Although establishment success is not a deterministic process, the characteristics of an introduced species can influence the probability of its succeeding. I have shown that with adequate eco-physiological information, and for introduced land bird species at least, this probability can be predicted. These results refute previous suggestions that the stochastic component of species introductions will always overshadow any emerging patterns of successful establishment among non-native populations. Thesis (PhD Doctorate) Doctor of Philosophy (PhD) Australian School of Environmental Studies Science, Environment, Engineering and Technology Full Text

Gli stili APA, Harvard, Vancouver, ISO e altri

Crowley, Sarah Louise. "Ecological politics and practices in introduced species management." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/28758.

Testo completo

Abstract (sommario):

The surveillance and control of introduced species has become an increasingly important, yet often controversial, form of environmental management. I investigate why and how introduced species management is initiated; whether, why and how it is contested; and what relations and outcomes emerge ‘in practice’. I examine how introduced species management is being done in the United Kingdom through detailed social scientific analyses of the processes, practices, and disputes involved in a series of management case studies. First, I demonstrate how some established approaches to the design and delivery of management initiatives can render them conflict-prone, ineffective and potentially unjust. Then, examining a disputesurrounding a state-initiated eradication of monk parakeets (Myiopsitta monachus), I show why and how ‘parakeet protectors’ opposed the initiative. I identify the significance of divergent evaluations of the risks posed by introduced wildlife; personal and community attachments between people and parakeets; and campaigners’ dissatisfaction with central government’s approach to the issue. By following the story of an unauthorised (re)introduction of Eurasian beavers (Castor fiber) to England, I show how adiverse collective has, at least temporarily, been united and empowered by a shared understanding of beavers as ‘belonging’ in the UK. I consider how nonhuman citizenship is socio-politically negotiated, and how the beavers have become enrolled in a ‘wild experiment’. Finally, through a multi- sited study of grey squirrel (Sciuruscarolinensis) control initiatives, I find important variations in management practitioners’ approaches to killing squirrels, and identify several ‘modes of killing’ that comprise different primary motivations, moral principles, ultimate aims, and practical methods. I identify multiple ways in which people respond and relate to introduced wildlife, and demonstrate how this multiplicity produces both socio-political tensions and accords. Furthermore, throughout this thesis I make a series of propositions for re-configuring the management of introduced species in ways that explicitly incorporate inclusive, constructive, and context-appropriate socio-political deliberations into its design and implementation.

Gli stili APA, Harvard, Vancouver, ISO e altri

Curtis, Tracy Renee. "Mechanisms facilitating the success of an invasive social wasp species in North America relative to a native species." Diss., Online access via UMI:, 2005. http://wwwlib.umi.com/dissertations/fullcit/3164710.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Keplinger, Brandon J. "An experimental study of vertical habitat use and habitat shifts in single-species and mixed-species shoals of native and nonnative congeneric cyprinids." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5163.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Rabie, Paul A. "Demography and individual growth of two introduced Bromus species." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Dissertations/Spring2010/p_rabie_021810.pdf.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Nyafu, Kanyisa. "Warthog as an introduced species in the Eastern Cape." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1058.

Testo completo

Abstract (sommario):

The introduced common warthog, Phacochoerus africanus, in the Eastern Cape is increasing rapidly both in numbers and distribution, despite attempts by landowners to reduce numbers and exclude warthogs. These control attempts are motivated by concerns over the impacts of warthogs, on vegetation, soil and other animal species. This expansion of warthog populations is paradoxical given that a species of warthog occurred historically in this part of the world, apparently at low densities and was wiped out in the mid-1800s. The question therefore arises as to why warthogs are able to overcome population regulation attempts now, and this becomes an invasive species issue as the species now occurring in the Eastern Cape is in fact an introduced species. The objectives of the study were to investigate the status of warthogs as an introduced invasive species in the Eastern Cape by documenting the rate and direction of population expansion, ecological impacts and possible dietary shift of the introduced species, P. africanus compared to the extinct species P. aethiopicus. The research approach adapted here was to test the hypotheses that, (1) the success of P. africanus in the Eastern Cape reflects dietary differences of the two species based on observations of different dental adaptations, as P. africanus has functional incisors, which are absent in P. aethiopicus. Stable carbon isotope analysis of the tooth enamel was used to determine the diet of the two species. (2) Common warthogs are specialized grazers and will impact on a limited range of grass species, this hypothesis was addressed by describing the diet of common warthogs in one site in the Eastern Cape to identify plant species at risk due to invasion by P. africanus, and microhistological faecal analysis was used. (3) Common warthogs have successfully expanded their range in the Eastern Cape since their introduction and are now showing impact, this was addressed by describing the range of expansion of P. africanus in the Eastern Cape, as well as reviewing landowner perceptions of the impacts of warthogs, this was based on questionnaire surveys distributed in the Sundays and the Fish River valleys. The results of the study showed that there are differences in the diet of Cape warthog P. aethiopicus and common warthog P. africanus. The Cape warthog was largely a grazer (86 percent C4 grasses in their diet), while P. africanus is also a grazer (71 percent of C4 grasses in their diet), but with a larger proportion of browse in their diet. These results support the hypothesis that the presence of functional incisors in the common warthog might provide the common warthog with foraging advantages over the Cape warthog. This might be a contributing factor to the success of this invasive species in the Eastern Cape, and might explain the rapid disappearance of Cape warthogs in the 1800s, which coincided with rapid expansion of herds of domestic grazers. A total of twelve grass species are used by common warthogs and are therefore most vulnerable to impacts of this invasive species. Common warthogs are rapidly expanding their range particularly around the Sundays and the Great Fish River valleys and they are perceived by landowners to have impacts on grass cover, soils and fencing. This spread of warthog in the Eastern Cape exhibits characteristics of an invasive species. In light of the findings of this study, it is therefore important that government authorities and other parties concerned recognize that common warthogs are invasive in the Eastern Cape.

Gli stili APA, Harvard, Vancouver, ISO e altri

Fautley, Richard Guy. "The ecology and population genetics of introduced deer species." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/32693.

Testo completo

Abstract (sommario):

Deer have been introduced outside their native ranges numerous times worldwide, causing significant economic and environmental impacts. The scale of problems caused by some introduced deer species is expected to increase, while others are relatively harmless and may be important for conservation as their numbers decline in native regions. This thesis examines the factors promoting invasion in non-native deer, and investigates the population genetics of two deer species introduced to Great Britain. Factors hypothesised to predict invasion success were tested using a comparative analysis of the outcomes of introductions of non-native deer populations. Two modelling approaches were taken to account for confounding effects in species-level and population-level analyses, and different factors were found to explain success at different stages of the invasion process. Populations of roe deer expanding from refugia and reintroductions were examined, and differences in genetic diversity between core and peripheral populations, alongside a decline in diversity with rate of expansion from the core were found. High levels of differentiation between and among core and peripheral populations suggest that genetic drift is the major factor causing these patterns. Using a genome scan of British and European roe deer, loci potentially under selection were identified. Association between some of these loci and environmental variables suggests that climatic extremes may have a role in exerting selective pressures on roe populations. The Chinese water deer is severely declining in range and number in its native habitat, but rapidly expanding after being introduced to Great Britain. Relatively high levels of diversity in native Chinese populations, and significant differentiation between the Chinese and British populations were found. The source population of the British deer is likely to be extinct, and the level of genetic structuring indicates that conserving populations across both ranges is important to maintaining their diversity.

Gli stili APA, Harvard, Vancouver, ISO e altri

Cassey, Phillip, and n/a. "Comparative Analyses of Successful Establishment Among Introduced Land Birds." Griffith University. Australian School of Environmental Studies, 2002. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030915.094001.

Testo completo

Abstract (sommario):

Gli stili APA, Harvard, Vancouver, ISO e altri

Buckwalter, Joseph Daniel. "Temporal trends in stream-fish distributions, and species traits as invasiveness drivers in New River (USA) tributaries." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/64773.

Testo completo

Abstract (sommario):

Biological invasions represent both an urgent conservation problem and an opportunity to advance ecological theory. Development of pertinent research questions and proactive management strategies require knowledge of which introduced species are present and of spatiotemporal trends in the distribution of natives and invaders. In Chapter 2 we developed a quantitative framework to identify spreaders and decliners and estimate invasion chronologies based on a historical fish presence data set for upper and middle New River (UMNR) tributaries. Our framework accounts for spatiotemporal variability in sampling effort by aggregating presences by watershed and expressing range size as a function of the number of watersheds sampled per time period. The majority (55%) of fish species present in the study area were introduced, 51% of which were spreaders. Most spreaders (84%) appeared to be spreading exponentially. The rate of new introductions detected in the study area has slowed since the mid-20th century. Two natives, the mound-spawning bluehead chub Nocomis leptocephalus and its strong nest associate (reproductive mutualist), mountain redbelly dace Chrosomus oreas, were among the most rapid spreaders. Four natives showed evidence of decline. Our framework leverages historical presence data to reconstruct temporal trends in species distributions. It sets the stage for further study of factors driving stream fish invasions and declines in the Appalachian region, and is transferable to diverse taxonomic groups and geographic regions. Species traits and human activities mediating stream-fish invasions remain poorly understood. In Chapter 3 we modeled the contribution of species traits to invasion success of UMNR tributary fishes during the colonization and spread stages. Biological traits accurately explained colonization and spread success, whereas ecological traits resulted in less accurate models. Colonization success was positively related to time since introduction, benthic feeding, an equilibrium life history, and nest spawning. Successful spread was positively related to winter air temperature in the native range and an equilibrium life history. Variables estimating human use and propagule pressure were non-informative. Traits that influenced invasion success were consistent with the hypothesis that human land-use practices have increased the invasibility of highland watersheds by creating novel conditions suited to lowland and equilibrium invaders. Master of Science

Gli stili APA, Harvard, Vancouver, ISO e altri

Gwinn, R. Nathan, and John L. Koprowski. "Differential response to fire by an introduced and an endemic species complicates endangered species conservation." ASSOC TERIOLOGICA ITALIANA, 2016. http://hdl.handle.net/10150/625219.

Testo completo

Abstract (sommario):

Fire is a natural component of, and serves as a tool for, the restoration of forested ecosystems worldwide; however, disturbance due to fire also has been implicated in the proliferation of invasive species. How these fires affect occupancy and use of the forest by wildlife is of great concern, in particular, the differential response of non-native and native species. In the North American Southwest, prior to European settlement, frequent wildfires helped to maintain forest structure. We examined the effect of a large wildfire on an introduced population of the Abert's squirrel (Sciurus aberti) that has invaded the high elevation forests inhabited by the critically endangered Mt. Graham red squirrel (Tamiasciurus fremonti grahamensis). We found that introduced Abert's squirrels were more common than native red squirrels in burned areas. Abert's squirrels did not abandon burned areas but nested, foraged, and did not adjust their home range size in burned areas. This suggests that invasive Abert's squirrels are better able to exploit burned areas than native red squirrels and that fire can favor non-native species. This interaction between non-native species, native species, and fire adds new insight into the complexities of conservation and restoration of ecosystems and helps to inform conservation activities worldwide.

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Libri sul tema "Introduced species"

Mlot, Christine. Invasive species. Cambridge, MA: Union of Concerned Scientists, 2003.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Koons, Deborah. Invasive species. Cambridge, MA: Union of Concerned Scientists, 2003.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

I, McDonald Justin, Huisman, John M. (John Marinus), and Western Australia. Department of Fisheries, eds. Introduced marine species in Western Australia. Perth, W.A: Dept. of Fisheries, 2009.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Windle, Phyllis. Invasive species in Ohio: Pathways, policies, and costs. Cambridge, MA: Union of Concerned Scientists, 2008.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Windle, Phyllis N. Invasive species in Ohio: Pathways, policies, and costs. Cambridge, MA: Union of Concerned Scientists, 2008.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Kenn, Oberrecht, United States. National Oceanic and Atmospheric Administration., South Slough National Estuarine Research Reserve (Or.)., and Tillamook Bay National Estuary Project (Or.)., eds. Native shellfish & introduced species in Oregon estuaries. Charleston, OR: South Slough National Estuarine Research Reserve, 1996.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Samoa. Ministry of Natural Resources & Environment. National invasive species action plan: July 2008-June 2011. Samoa: Ministry of Natural Resources and Environment, 2008.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Samoa. Ministry of Natural Resources & Environment. National invasive species action plan: July 2008-June 2011. Samoa: Ministry of Natural Resources and Environment, 2008.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Christopher, Lever. Naturalized animals: The ecology of successfully introduced species. London: T & A D Poyser, 1994.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Capitoli di libri sul tema "Introduced species"

Barros, Francisco. "Introduced Species." In Encyclopedia of Estuaries, 361–62. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-8801-4_152.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Stuessy, Tod F. "Introduced Species." In Environmental History of Oceanic Islands, 45–55. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47871-1_5.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Wermelinger, Beat. "Introduced species." In Forest Insects in Europe, 305–12. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003186465-19.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Feldhaar, Heike, and Lori Lach. "Introduced and Invasive Species." In Encyclopedia of Social Insects, 524–33. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-28102-1_66.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Feldhaar, Heike, and Lori Lach. "Introduced and Invasive Species." In Encyclopedia of Social Insects, 1–10. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-90306-4_66-1.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Adams, Clark E. "Urban Introduced and Invasive Species." In Urban Wildlife Management, 339–78. Third edition. | Boca Raton, FL : Taylor & Francis Group, 2016.: CRC Press, 2018. http://dx.doi.org/10.1201/9781315371863-13.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Simberloff, Daniel. "Introduced Species, Homogenizing Biotas and Cultures." In Linking Ecology and Ethics for a Changing World, 33–48. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7470-4_3.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Patterson, Richard S. "Biological Control of Introduced Ant Species." In Exotic Ants, 293–307. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9780429040795-25.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Stewart, Melissa, and Nancy Chesley. "How Introduced Species Can Affect an Ecosystem." In Perfect Pairs, 3-5, 214–22. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781032682051-25.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Reise, Karsten, Stephan Gollasch, and Wim J. Wolff. "Introduced Marine Species of the North Sea Coasts." In Invasive Aquatic Species of Europe. Distribution, Impacts and Management, 260–66. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9956-6_28.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Introduced species"

Neacsu, Alina, Ilinca Imbrea, Diana Obistioiu, Alina Lato, and G. Gabriel Arsene. "THE SPREAD OF ASCLEPIAS SYRIACA L. IN THE ROMANIAN BANAT." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024, 349–56. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/4.2/s19.49.

Testo completo

Abstract (sommario):

Introduced in Europe for the first time as a medicinal plant (around the 1630) and later as an ornamental, Asclepias syriaca L. has escaped from culture and became subspontaneous. Today, this species raises serious threats of invasion in some European countries, such as Hungary, for example. In this paper, we discuss the spread of the species in the Romanian Banat, especially in the spontaneous vegetation. The first reports in the region are those from the Romanian Flora. We found this species in different habitats: roadsides, wastelands, railways, wetlands, meadows, the proximity of some wine farms, in several localities and their surroundings such as: Timisoara, Covaci, Dumbravita, Remetea Mare, Buzias, Recas, Satchinez, Surduc, Fardea, Pischia, Jebel, Sacalaz, Sannicolau Mare, Bezdin, Cenad etc. Even if it appears isolated and the populations are generally small, we believe that the species must be attentively monitored, because in recent years it has been reported in almost all of Romania and considering the impact it can have on local habitats and flora. Our data, corroborated with those published by other authors show that we are most likely in a preliminary stage of the consistent spread of this species in the Romanian Banat.

Gli stili APA, Harvard, Vancouver, ISO e altri

Szabo, Veronika, Dora Judit Kukk, and Ildiko Kohut. "SOME ECOLOGICAL SERVICES OF THE FIRST, 4-YEARS OLD, HUNGARIAN MIYAWAKI-FOREST IN TABAN, BUDAPEST." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024, 217–24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/4.2/s18.30.

Testo completo

Abstract (sommario):

Miyawaki-forest is a well-known method to create small forest quickly in urban conditions. It works with native woody species that are densely (4-5 pcs/m2) planted together after topsoil changing in a quite small area. The first Hungarian Miyawaki-forest was introduced in Taban, 2021. It planted with 9 native species (Acer platanoides, Acer campestre, Carpinus betulus, Crataegus monogyna, Euonymus europaeus, Pyrus pyraster, Ulmus laevis, Sorbus torminalis and Quercus robur). The area is 40 m2. Soil was changed up to 50 centimeters before planting. 120 individuals were planted and the surface was mulched with straw about 20 cm thick to retain water in the soil. This planting arrangement provides an excellent opportunity to study the ecological services of Miyawaki forests, including the capabilities of species under low maintenance conditions. We examined some ecological services such as CO2-fixation (daily maximum photosynthetic activity), evaporation (water vapor emission) and dust deposition (mg/m2 leaf area) for more or less 4 years. Daily maximum photosynthetic activity (g CO2/m2 leaf area) and water vapor emission (l/m2 leaf area) were measured on trees twice a year in 2021, from 2022 to 2024 mostly monthly from May to October with a portable infrared gas analyzer. The data were recorded between 11 and 13 h. From 2022, dust deposition is also measured on each species. Leaf samples were collected, washed with distilled water and scanned for leaf area. The CO2-fixation and evaporation show seasonal and species changes. Dust deposition mostly influenced by weather.

Gli stili APA, Harvard, Vancouver, ISO e altri

Blossom, Neal W. "Copper Antifouling Coatings - Greener than the Headlines. the Latest Regulatory Happenings and How They Can Affect You." In SSPC 2012 Greencoat, 1–10. SSPC, 2012. https://doi.org/10.5006/s2012-00005.

Testo completo

Abstract (sommario):

Abstract Antifouling coatings are a benefit to the environment because they reduce vessel drag which can increase fuel usage by as much as 86% and reduce the hull transport of nonindigenous species which may account for up to 70% of invertebrate invasive species in coastal waters. Copper-based antifouling coatings are used on over 90% of vessels in the world that have biofouling control coatings on their hulls. Scientific evaluation supports the use of copper in this application because it has limited toxicity to non-target organisms away from the vessel hull due to the capacity of water and sediments to bind the copper in a form that isn’t bioavailable to organisms. However, additional regulations and constant reevaluation of the use and management of all biocides continue to put pressure on any human exposure or environmental input. Biocidal antifouling and biocide free coatings are constantly being introduced as alternatives to copper. Working with regulatory agencies and understanding the safety of copper and its alternatives is imperative to successfully maintaining an economically healthy and environmentally sound biofouling control industry.

Gli stili APA, Harvard, Vancouver, ISO e altri

Huang, Jin, Bruce Brown, Yoon-Seok Choi, and Srdjan Nešić. "Prediction of Uniform CO2 Corrosion of Mild Steel under Inert Solid Deposits." In CORROSION 2011, 1–16. NACE International, 2011. https://doi.org/10.5006/c2011-11260.

Testo completo

Abstract (sommario):

Abstract The effect of an inert solid deposit on uniform CO2 corrosion of mild steel is modeled based on a mechanistic electrochemical CO2 corrosion model. Laboratory testing has shown that the dominant factors introduced by the inert solids deposit are related to surface coverage, where both anodic and cathodic reaction rates are decreased because of less active surface area being exposed. The inert solid deposits also create a mass transfer barrier for corrosive species which limits the rate of the cathodic reactions. An existing mechanistic electrochemical model was modified to account for these effects and was capable of capturing the main features of uniform CO2 corrosion of mild steel under inert solid deposits.

Gli stili APA, Harvard, Vancouver, ISO e altri

Sisenis, Linards, Irina Pilvere, Baiba Jansone, Dace Brizga, and Edgars Dubrovskis. "ASSESSMENT OF THE QUALITY AND PRODUCTIVITY OF LODGEPOLE PINE GROWN IN THE WESTERN PART OF LATVIA." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024, 357–66. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s14.42.

Testo completo

Abstract (sommario):

The research aims to examine the pace of growth of lodgepole pine, the amount of damage caused by biungulates and the quality of trunks for lodgepole pine provenances growing in the western part of Latvia in the areas around Ugale and Kuldiga, identifying the most damage-resistant and promising provenances for cultivation in Latvia. In Latvia, foresters and plant breeders have been working for years to increase the quality and productivity of local tree species, while assessing various forest stand management patterns and trying to reduce the rotation period of stands. Nowadays, because of climate change, i.e. with the climate becoming warmer, it is clear that in the future in Latvia not only a management strategy for the dominant tree species have to be changed but also the possibilities of introducing new tree species suitable for the conditions in Latvia need to be considered to reduce the forest rotation period. At the same time, introducing new tree species requires considering that the tree species must have economic potential, i.e. the wood has prospects for being processed and consumed (e.g. construction) in the local region, as carbon is sequestrated during the growth of the trees and stays in Latvia. Lodgepole pine is one of the tree species that could have prospects for cultivation on an industrial scale in plantations, which was introduced in Latvia at the beginning of the last century. Based on the experience of Swedish foresters in growing lodgepole pine on an industrial scale in the 1980s, experimental lodgepole pine plantations were established in Latvia by using both domestic seeds and those from the natural range in Canada and the United States, as well as from Sweden. The research analysed the following tree inventory data collected from the experimental plantations of lodgepole pines at the ages of 27 and 43 years in the western part of Latvia: the height and diameter of the trees and compared the data for Scots pine grown in identical conditions. In addition, the proportions of trees damaged by deer etc. as well as the proportions of trees with multiple tops and branch-to-stem attachments because these defects significantly reduce the chances of producing quality roundwood assortments in the future were analysed for both species. The data were processed using parametric methods. In an experimental plantation in the area near Ugale, 43-year-old lodgepole pines demonstrated a performance similar to that of Scots pines, with average heights of 18.2 and 18.4 meters and diameters of 19.1 and 19.0 cm, respectively, i.e. the differences were insignificant. In the plantation near Kuldiga, the differences were found significant, as the average height difference between the species was 1.3 m, while the diameter difference was 1.3 cm. It was concluded that lodgepole pines had lower trunk quality and were more damaged by deer. It was also found that the least productive lodgepole pine provenances were more damaged by deer.

Gli stili APA, Harvard, Vancouver, ISO e altri

Messer, B., B. Tarleton, M. Beaton, and T. Phillips. "New Theory for Naphthenic Acid Corrosivity of Athabasca Oilsands Crudes." In CORROSION 2004, 1–11. NACE International, 2004. https://doi.org/10.5006/c2004-04634.

Testo completo

Abstract (sommario):

Abstract Canadian Athabasca oilsand bitumen crudes, characterized as corrosive by the classical naphthenic model, are producing negligible naphthenic acid corrosion in crude and vacuum units after more than 50 years of cumulative operation. A new theory proposes that the corrosivity of naphthenic acids in Athabasca oilsand bitumen crudes is a function of its molecular weight, molecular structure, true boiling point, reactive sulfidic species, and local environment. The concept of α (bad type) and β (good type) naphthenic acids is introduced. The α naphthenic acids are characterized as corrosive, with low molecular weights, and β as non-corrosive and inhibitive, with high molecular weights. Hot extraction wash of the raw oil sand mixture appears to preferentially remove the higher water-soluble α fraction leaving the less corrosive, less water-soluble, β fraction. Naphthenic acid surviving after thermal hydroprocessing tends to be of the inhibitive β type. Case histories, material selection, and corrosion reduction possibilities with opportunity crudes are discussed.

Gli stili APA, Harvard, Vancouver, ISO e altri

Каирова, М. Ж. "INTRODUCED SPECIES AND NATURAL POPULATIONS OF SPP. IN KAZAKHSTAN." In Сотрудничество ботанических садов в сфере сохранения ценного растительного генофонда. Материалы Международной научной конференции, посвященной 10-летию Совета ботанических садов стран СНГ при МААН, 55–58. Crossref, 2022. http://dx.doi.org/10.35102/cbg.2022.67.88.014.

Testo completo

Abstract (sommario):

Благодаря быстрому росту и высокой стрессоустойчивости некоторые виды тополя Populus spp. интродуцированы в различные области Казахстана. Основываясь на обзоре литературных источников и при исключении синонимичных видов, у нас произрастают 13 видов тополя, из которых среднеазиатское распространение имеют 5 видов P. talassica Kom, P. pilosa Rehd., P. diversifolia Schrenk , P. berkarensis Poljak. и P. pruinosa Schrenk. Остальные 8 видов P. alba L., P. nigra L., P. deltoides Marsh, P. italica (DuRoi) Moench, P. balsamifera L., P. laurifolia Ledeb., P. tremula L., гибридный P. canescens (Ait.) Smith являются широко распространенными видами, используемыми при интродукции и озеленении городов и населенных пунктов. При этом, особое внимание необходимо обратить на сокращение ареалов произрастания природных популяций туранги P. pruinosa , некогда распространенной P. diversifolia и очень редкого эндемика P. berkarensis . Several species of Populus spp. were successfully introduced in different regions of Kazakhstan because of their fast plant growth and high stress tolerance. Based on the short review of literature sources and ignoring synonymous species names, there are grown 13 species of Populus spp. including 5 middle-asian distributed poplars P. talassica Kom, P. pilosa Rehd., P. diversifolia Schrenk , P. berkarensis Poljak. and P. pruinosa Schrenk in our country. Remaining 8 poplar species P. alba L., P. nigra L., P. deltoides Marsh, P. italica (DuRoi) Moench, P. balsamifera L., P. laurifolia Ledeb., P. tremula L., and also hybrid species P. canescens (Ait.) Smith are commonly distributed trees introducing and planting in urban and villages greening. However, the special attention should be taken for natural populations of desert poplars P. pruinosa , formerly wide-distributed P. diversifolia and very rare endemic P. berkarensis the number of which and land area are continued declining.

Gli stili APA, Harvard, Vancouver, ISO e altri

Katayama, Yousuke, Kohei Miyata, and Lifeng Zhang. "Discrimination of Specific Introduced Species of Waterside Used AdaBoost." In International Conference on Industrial Application Engineering 2013. The Institute of Industrial Applications Engineers, 2013. http://dx.doi.org/10.12792/iciae2013.051.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Chekmeneva, Yu, and A. Arefieva. "INTRODUCED SPECIES OF MEDITERRANEAN IN LANDSCAPE DESIGN OF RUSSIA." In FORESTRY-BIOLOGICAL FOUNDATIONS OF SUSTAINABILITY OF NATURAL AND ARTIFICIAL PHYTOCOENOSES. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2024. http://dx.doi.org/10.58168/fbfsnap2024_155-160.

Testo completo

Abstract (sommario):

Due to changing climatic conditions, as a result of the success of progressive selection, new species appear in the assortment in urban landscaping and phytodesign. The use of introduced plants from the Mediterranean is due to their decorative qualities and species diversity. The purpose of the study is to compare the ecological and biological properties of some Mediterranean species, and to assess the possibility of their use in landscaping in Russia. The species under consideration belong to the frost-resistant group - Quercus coccifera L, moderate frost-resistant - Platanus × acerifolia (Aiton) Willd., Acer buergerianum Miq, Tamarix smyrnensis Bunge, and non-frost-resistant groups - Eucalyptus leucoxylon F.Muell, Ceratonia siliqua L, Pistacia lentiscus L. In accordance with the various properties of plants, according to the dendrological zoning of the European part of Russia, the listed species are proposed for introduction into an additional assortment in regions characterized by moderately cold, moderately mild and very mild winters.

Gli stili APA, Harvard, Vancouver, ISO e altri

Talevski, Trajče, and Blagoja Trajčeski. "BIODIVERSITY OF THE ICHTYOFAUNA OF THE LARGE NATURAL MACEDONIAN LAKES (PRESPA, OHRID AND DOJRAN LAKE) WITH SPECIAL REFERENCE TO INTRODUCED FISH SPECIES." In 53rd Annual Conference of the Serbian Water Pollution Control Society. SERBIAN WATER POLLUTION CONTROL SOCIETY, 2024. http://dx.doi.org/10.46793/voda24.161t.

Testo completo

Abstract (sommario):

The paper presents research into the biodiversity of the ichthyofauna of large natural Macedonian lakes (Prespa, Ohrid and Dojran lakes) and the problems caused by non-native fish species on the autochthonous ichthyofauna. The Macedonian fish fauna is represented by eighty species, of which sixty-one fish species are described for the Prespa, Ohrid and Dojran lakes. 11 autochthonous and 12 introduced fish species were described in Prespa Lake, 22 autochthonous and 7 introduced fish species in Ohrid Lake, and 14 autochthonous and 8 introduced fish species in Dojran Lake

Gli stili APA, Harvard, Vancouver, ISO e altri

Rapporti di organizzazioni sul tema "Introduced species"

Coulter, C., K. Voelke, W. Vagt, and Camp Rilea. Eliminating Invasive Introduced Species While Preserving Native Species in Coastal Meadow Habitat, a Critically Imperiled Ecosystem. Fort Belvoir, VA: Defense Technical Information Center, January 2010. http://dx.doi.org/10.21236/ada534618.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Schukrt, Thomas H., Robert F. Strand, Thomas G. Cole, and Katharine E. McDuffie. Equations for predicting biomass of six introduced tree species, island of Hawaii. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1988. http://dx.doi.org/10.2737/psw-rn-401.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Deitloff, Jennifer M., Nicole A. Freidenfelds, and Tracy Langkilde. Lessons from Lizards: Adaptation to Introduced Ants. American Museum of Natural History, 2023. http://dx.doi.org/10.5531/cbc.ncep.0001.

Testo completo

Abstract (sommario):

The fence lizard and fire ant ecological system provides an excellent real-world case study for students to examine the impacts of nuisance introduced species on native organisms, with particular emphasis on the topic of adaptation. In this exercise, students are tasked with making predictions, analyzing real scientific data, and applying critical-thinking strategies to interpret their results. A reflection component at the end of the exercise involves the creation of a concept map to synthesize and integrate ideas from the lesson within the broader context of natural selection.

Gli stili APA, Harvard, Vancouver, ISO e altri

Alyokhin, A., and C. Finlayson. Invasive Species and Mechanisms of Invasions. American Museum of Natural History, 2006. http://dx.doi.org/10.5531/cbc.ncep.0157.

Testo completo

Abstract (sommario):

Invasive species are a present and growing concern for conservation scientists. Invasive species are generally non-indigenous species with large, expanding populations that are causing significant (usually detrimental) effects in this new region. While many organisms and species are introduced to new habitats naturally, deliberately, and/or inadvertently, relatively few reach “invasive” status. There are numerous factors that determine the success or failure of a particular species to become established, including the attributes of the invaders and community vulnerability. Successful invasions can inflict profound ecological and economic costs. In response, there are a variety of methods used to prevent and control invasive species, such as eradication and restoration.

Gli stili APA, Harvard, Vancouver, ISO e altri

Harms, Nathan, Matthew Purcell, Patrick Hafliger, Sonja Stutz, Hong Sun-hee, Jialiang Zhang, Megann Harlow, Ryan Thum, Chenxi Lui, and Dean Brookes. Surveys in Native and Introduced Ranges (2018–2021) for Natural Enemies of Yellow Floating Heart, Nymphoides peltata Kunth. Engineer Research and Development Center (U.S.), September 2024. http://dx.doi.org/10.21079/11681/49424.

Testo completo

Abstract (sommario):

Yellow floating heart (Nymphoides peltata), a widespread aquatic invasive plant in the US, is currently under investigation for biological control development. From 2018 to 2021, we conducted native (Europe: 14 locations; Asia: 80 locations) and introduced (US: 39 locations) range surveys to create a list of candidate agents and collect baseline infestation data for comparison. We genetically characterized populations and determined those most-closely related to US N. peltata were European. However, we found no promising agents in that region, except for previously reported fungal pathogens. In Asia, several herbivores were identified as potential agents based on observed damage in situ and previous literature reports about host specificity. These included three species of Bagous weevils, one of which may be Bagous charbenensi, and an unidentified leaf-mining Hydrellia fly. During domestic surveys, generalist leaf-cutting caterpillars were common, similar to the native range. A major discovery was the dam-aging fungal pathogen, Septoria villarsiae, isolated from plants in a private pond in Maine—the first record in the Western hemisphere. The next steps for this program should include preliminary host specificity and impact assessments of S. villarsiae, the fruit-feeding Bagous spp. in China and Korea, and the leaf-mining Hydrellia sp. fly from South Korea.

Gli stili APA, Harvard, Vancouver, ISO e altri

LeDuc, Jamie, Ryan Maki, Tom Burri, Joan Elias, Jay Glase, Brenda Moraska Lafrancois, Kevin Peterson, David Vandermeulen, and Ben Vondra. Voyageurs National Park interior lakes status and impact assessment. National Park Service, February 2022. http://dx.doi.org/10.36967/nrr-2289923.

Testo completo

Abstract (sommario):

Voyageurs National Park (VNP) is a water-based park that includes part or all of four large lakes and twenty-six smaller lakes commonly referred to as “interior lakes”. The 26 interior lakes of VNP are important aquatic resources with differing size and depth, water chemistry, trophic status, fish communities, and visitor use. Despite the remote location of these lakes, they have been impacted by multiple stressors, including contaminants and non-native species. This assessment provides key information in support of a science-based management plan for these lakes. The objectives of this assessment were to: 1) assess the status of each of the interior lakes and categorically rank the lakes from least to most impacted; 2) use the results to make specific science-based management and restoration recommendations for the most impacted lakes; and 3) make general recommendations that may be useful in managing all of Voyageurs National Park’s interior lakes. When all factors considered in this analysis (water quality, fish mercury concentrations, and fish community characteristics) were combined and assessed, thirteen lakes were classified as most impacted, nine as moderately impacted, and three as least impacted. Although nearly half of the lakes were classified as most impacted in this assessment, many of these lakes are in excellent condition compared to other lakes in the region. The factor-by-factor impact status of the lakes was considered to help describe the condition of the lakes and the potential for restoration. No local management options were identified to mitigate the mercury contamination in these lakes as research has shown the sources of the contamination to arrive from regional and global sources. Similarly, no management actions were identified to reduce nutrient concentrations in the lakes ranked most impacted for nutrient conditions as these are remote lakes with minimal or no development within their watersheds, and it was also noted that paleolimnological studies have shown that the nutrient status of the interior lakes was relatively unchanged from pre-European settlement conditions. Finally, for the lakes in which presumed introduced fish species are present, piscicides were considered as a potential management action. Piscicides were not recommended as a strategy to eradicate introduced fish species as it was determined that genetic conservation of the populations of native fish species still present in these lakes was more valuable than eradicating the introduced species.

Gli stili APA, Harvard, Vancouver, ISO e altri

Audsley, Neil, Gonzalo Avila, Claudio Ioratti, Valerie Caron, Chiara Ferracini, Tibor Bukovinszki, Marc Kenis, et al. Gypsy moth, Lymantria dispar (L.). Euphresco, 2023. http://dx.doi.org/10.1079/20240228573.

Testo completo

Abstract (sommario):

The gypsy moth (Lymantria dispar), native to Eurasia, is a major defoliator of oaks and other broadleaved trees. Introduced into Massachusetts, USA, in 1869, it has spread across North America, causing severe forest damage. Numerous biological control efforts have been made, with some success. Key natural enemies introduced include the tachinid parasitoids Parasetigena sylvestris, Compsilura concinnata and Blepharipa pratensis, and pathogens like the nuclear polyhedrosis virus and the fungus Entomophaga maimaiga. C. concinnata, however, has impacted native moth species negatively. Promising control agents include the host-specific P. sylvestris, the nuclear polyhedrosis virus, and E. maimaiga, which has effectively controlled gypsy moth populations in North America and the Balkans. Other potential agents include tachinid parasitoids Blepharipa pratensis, Blepharipa schineri and Aphantorhaphopsis samarensis, and the ichneumonid Phobocampe disparis.

Gli stili APA, Harvard, Vancouver, ISO e altri

Bennett, Alan, and Arthur Schaffer. Sucrose Metabolism in Developing Fruit of Wild and Cultivated Lycopersicon Species. United States Department of Agriculture, June 1996. http://dx.doi.org/10.32747/1996.7613009.bard.

Testo completo

Abstract (sommario):

The project focused on a strategy to enhance tomato fruit soluble solids by evaluating components of carbohydrate metabolism in fruit of wild tomato species that accumulate sucrose rather than hexose and have extremely high soluble sugar contents. The overall goal was to determine the extent to which sucrose accumulation contributes to elevated soluble solids levels and to understand the underlying genetic and biochemical basis of the trait. The research objectives were to evaluate near isogenic L. esculentum lines segregating for sucrose- and hexose-accumulation, determine the biochemical basis of sucrose accumulation and develop molecular genetic strategies to enhance sucrose accumulation in fruit. The inheritance of the sucrose accumulation gene (sucr) was evaluated in both L. chmielewskii and L. hirsutum and shown to be conferred by a single recessive gene in each species. Stable L. esculentum lines homozygous for the sucr gene from L. chmieliewskii and L. hirsutum were well characterized on a genetic and physiological basis and have been introduced into breeding programs to modify fruit sugar composition. The metabolic basis of sucrose accumulation was determined to result from the lack of sucrose hydrolytic capacity. The invertase gene was cloned and its analysis indicated that it is transcriptionally silent in sucrose-accumulating fruit. Transgenic plants expressing an antisense invertase gene were produced and shown to accumulate high levels of sucrose, confirming the role of invertase as the primary determinant of sucrose accumulation and demonstrating the feasibility of a general strategy to genetically engineer sugar composition.

Gli stili APA, Harvard, Vancouver, ISO e altri

Oliver, Amanda, William Slack, and Alan Katzenmeyer. Occurrence of Silver, Bighead, and Black Carp in waters managed by the US Army Corps of Engineers. Engineer Research and Development Center (U.S.), September 2022. http://dx.doi.org/10.21079/11681/45542.

Testo completo

Abstract (sommario):

This technical report (TR) documents the distribution of Invasive Carp - Silver Carp (Hypophthalmichthys molitrix), Bighead Carp (Hypophthalmichthys nobilis), and Black Carp (Mylopharyngodon piceus) in US Army Corps of Engineers (USACE) managed waters. Invasive carp were introduced into the US nearly half a century ago. As they spread across the US, they compete with and consume native species and Silver Carp jumping behavior reduces recreational use. The USACE is responsible for management of waterbodies at more than 440 projects. Information on these projects including the presence of Invasive Carp is reported in the USACE Operations and Maintenance Business Information Link (OMBIL) database. To supplement the Invasive Carp information from OMBIL, 47 online ichthyology collection and observation databases were searched; 18 had information on Invasive Carp locations. Combining the collection, observation and OMBIL reporting information, 82 USACE projects in 19 districts in 6 of 8 divisions have Silver/Bighead Carp and 19 projects in 9 districts and 3 divisions have Black Carp. Understanding the distribution of Invasive Carp is important to enable managers to be proactive: planning control efforts, posting informational signs, instituting live bait restrictions, and thus reducing the chances of species introduction or limiting species impact.

Gli stili APA, Harvard, Vancouver, ISO e altri

Marks, David R. Mute Swans. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, February 2018. http://dx.doi.org/10.32747/2018.7208745.ws.

Testo completo

Abstract (sommario):

Mute swans (Cygnus olor) are an invasive species originally brought to the United States in the late 19th and early 20th centuries for ornamental ponds and lakes, zoos and aviculture collections. Original populations were located in northeastern states along the Hudson Valley but have since expanded to several Midwestern states and portions of the western U.S. and Canada. Mute swan damage includes competing with native waterfowl, destroying native plants, spreading disease, and colliding with aircraft. They are also considered a nuisance in some areas due to their abundant fecal droppings and aggressiveness towards people. Some have questioned the status of mute swans as an introduced species, but multiple reviews by scientists and the U.S. Fish and Wildlife Service clearly support the conclusion that mute swans are not native to North America. The Migratory Bird Treaty Act, therefore, does not protect mute swans, and management authority falls under jurisdiction of the states and Tribes.

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!