scholarly journals Kelly Warm Springs Historical Data Summary: Progress Report

Author(s):  
Paige Anderson ◽  
Aida Farag ◽  
David Harper

Kelly Warm Springs is a unique geological feature located within Grand Teton National Park, Wyoming. The Kelly Warm Springs area is used extensively by park wildlife, for recreation by park visitors, and is a place of educational interest. It has also been the site of historic non-native fish releases. The current work was initiated to gather historical information and to begin systematic documentation of temperatures in and around Kelly Warm Springs. Historic information that was not published but considered valid was included. Non-native fish presence was first documented in the 1960s. Concerns about non-native fish and habitat loss for native species were discussed by researchers in the 1980s. The temperature ranges recorded at several sites October – December 2014 approached 0oC at the lower section of the outflow channel, but remained above 20oC in the spring pond. While these range below the preferred temperature range for goldfish, research has documented survival in near zero temperatures. All sites located below Mormon Row where temperature loggers were initially deployed were either dewatered or frozen by mid-November.

2010 ◽  
Vol 19 (2) ◽  
pp. 62-73
Author(s):  
Helena Ruotsala

Nature and environment are important for the people earning their living from natural sources of livelihood. This article concentrates on the local perspective of the landscape in the Pallastunturi Fells, which are situated in Pallas-Ylläs National Park in Finnish Lapland. The Fells are both important pastures for reindeer and an old tourism area. The Pallastunturi Tourist Hotel is situated inside the national park because the hotel was built before the park was established 1938. Until the 1960s, the relationship between tourism and reindeer herding had been harmonious because the tourism activities did not disturb the reindeer herding, but offered instead ways to earn money by transporting the tourists from the main road to the hotel, which had been previously without any road connections. During recent years, tourism has been developed as the main source of livelihood in Lapland and huge investments have been made in several parts of Lapland. One example of this type of investment is the plan to replace the old Pallas Tourist hotel, which was built in 1948, with a newer and bigger one. It means that the state will allow a private enterprise to build more infrastructures for tourism inside a national park where nature should be protected and this has sparked a heated debate. Those who oppose the project criticise this proposal as the amendment of a law designed to promote the economic interests of one private tourism enterprise. The project's supporters claim that the needs of the tourism industry and nature protection can both be promoted and that it is important to develop a tourist centre which is already situated within the national park. This article is an attempt to try to shed light on why the local people are so loudly resisting the plans by a private tourism enterprise to touch the national park. It is based on my fieldwork among reindeer herding families in the area.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Łukasz Głowacki ◽  
Andrzej Kruk ◽  
Tadeusz Penczak

AbstractThe knowledge of biotic and abiotic drivers that put non-native invasive fishes at a disadvantage to native ones is necessary for suppressing invasions, but the knowledge is scarce, particularly when abiotic changes are fast. In this study, we increased this knowledge by an analysis of the biomass of most harmful Prussian carp Carassius gibelio in a river reviving from biological degradation. The species' invasion followed by the invasion's reversal occurred over only two decades and were documented by frequent monitoring of fish biomass and water quality. An initial moderate improvement in water quality was an environmental filter that enabled Prussian carp’s invasion but prevented the expansion of other species. A later substantial improvement stimulated native species’ colonization of the river, and made one rheophil, ide Leuciscus idus, a significant Prussian carp’s replacer. The redundancy analysis (RDA) of the dependence of changes in the biomass of fish species on water quality factors indicated that Prussian carp and ide responded in a significantly opposite way to changes in water quality in the river over the study period. However, the dependence of Prussian carp biomass on ide biomass, as indicated by regression analysis and analysis of species traits, suggests that the ecomorphological similarity of both species might have produced interference competition that contributed to Prussian carp’s decline.


2021 ◽  
Vol 12 (1) ◽  
pp. 23-29
Author(s):  
Iwan Hilwan ◽  
Aldi Perdana Wiraatmadja

Jirak (Symplocos fasciculata Zoll.) is one of the native species in the Gunung Halimun Salak National Park, especially in the Kawah Ratu resort. This plant can be used as a natural coloring agent, in addition to plant parts such as leaves can also be eaten and used as medicine. Because of the benefits of jirak, this plant is considered important to be cultivated. This study aims to analyze the density and distribution pattern of jirak (Symplocos fasciculata Zoll.) at Kawah Ratu Resort, Gunung Halimun Salak National Park. Data collection was carried out in two blocks located at the Kawah Ratu Resort of Mount Halimun Salak National Park, namely the Leles block and the Pamengpeuk block using the single plot method. The results showed that jirak distribution pattern in the two observation blocks was grouped. Keywords: Distribution, Jirak, Kawah Ratu Resort, Symplocos fasciculata Zoll., Gunung Halimun Salak National Park


Check List ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 1-1
Author(s):  
Gilberto Nepomuceno Salvador ◽  
Nathali Garcia Ristau ◽  
Isabel Sanches da Silva ◽  
André Nunes

The wild boar is one of the most dangerous invasive species. It is widespread in the world, including records for many Brazilian states. However, there is a lack of record from Maranhão state. In the present study, we reported a population of wild boar inside the Lençóis Maranhenses National Park, in Barrerinhas county, State of Maranhão. We discuss about the negative effects of this introduction on native species, including a record of predation by wild boar in nests of endangered turtles.


2011 ◽  
Vol 4 (1) ◽  
pp. 33 ◽  
Author(s):  
Luana Portz ◽  
Rogério Portantiollo Manzolli ◽  
Dejanira Luderitz Saldanha ◽  
Iran Carlos Stalliviere Correa

O Parque Nacional da Lagoa do Peixe está localizado no litoral sul do estado do Rio Grande do Sul. Dentre os conflitos existentes dentro da área do parque e no seu entorno, o aumento e a dispersão da vegetação exótica, vem gerando inúmeras discussões. Neste contexto o objetivo do presente trabalho foi identificar a distribuição espacial, ao longo do tempo, das áreas de plantações de Pinus sp. Para tanto foram utilizadas imagens multiespectrais de sensoriamento remoto (TM-Landsat 5), com datas entre 1986 e 2009, sendo realizada a classificação manual por meio da vetorização, verificação de campo e análise quantitativa e qualitativa dos resultados obtidos. O problema principal da dispersão natural de Pinus sp. é encontrado na margem da lagoa principal, margeada por banhados e por pinus, cuja dispersão espontânea está competindo com o crescimento da vegetação natural e alterando o cenário típico da região. De 1986, data de criação do parque, até hoje a área de pinus, no entorno desta lagoa, cresceu de 61 para 252 ha. Este aumento da área de ocorrência de Pinus sp, em mais de 4 vezes, torna necessária a sua extração, a fim de preservar as espécies nativas da região, bem como a diversidade biológica a ela associada. A expansão da silvicultura é preocupante, pois assumiu uma grande proporção em área, não se encontrando ações que indiquem uma desaceleração deste processo. Além de diminuir o valor estético da paisagem natural esta invasão poderá comprometer o potencial turístico e principalmente de preservação ambiental ao qual o título de Parque Nacional exige.Palavras chaves: Pinus sp., Landsat, impactos. Dispersion of Exotic Vegetation Into and Around the Lagoa do Peixe National Park  ABSTRACTLagoa do Peixe National Park presents a great variety of fragile ecosystems. Among the conflicts present into and around the Park is the increase and dispersion of exotic vegetation, that is generating several discussions. In this context, the objective of this paper was identifying the spatial distribution, over time, of the Pinus sp. plantations in this area. For both researches, it was used multispectral images (Landsat), with dates between 1986 and 2009, and performed the manual classification, field verification and analysis of quantitative and qualitative results. The main problem related to the natural dispersal of Pinus sp. is found on the shore of the park’s main lagoon. This area is bordered by marshes and Pinus sp. whose spontaneous dispersion is competing with the natural vegetation and altering the typical scenery of this region. Since the creation of the park (1986) until today, the area of pinus, around the lagoon, has grown from 61 to 252 ha. This increase, more than four times, makes it necessary its extraction in order to preserve the native species and the biodiversity associated. The expansion of forestry in the Lagoa do Peixe National Park is worrisome because it has been taking a great extent of the area, and there are no actions that indicate a slowdown of this process.Keyword: Pinus sp., Landsat, impact.


Author(s):  
Tatia Kuljanishvili ◽  
Levan Mumladze ◽  
Bella Japoshvili ◽  
Namig Mustafayev ◽  
Shaig Ibrahimov ◽  
...  

The South Caucasus (SC) region is recognized for its high biological diversity and various endemic animal taxa. The area has experienced many fish introductions over the years, but the overall information about non-native fishes in the three SC countries, Armenia, Azerbaijan, and Georgia did not exist. Although these three countries belong to the Kura River drainage, Caspian Sea basin (only the western half of Georgia drains into the Black Sea), the legislative framework for each country regarding introduction of non-native fish species and their treatment is different and poorly developed. The goal of the present study was to make an initial inventory of non-native fish species in the three SC countries, and summarize the existing knowledge as a basis for future risk assessment models and formulation of regional management policies. Here, we present a unified list of 27 non-native species recorded in the wild in Armenia, Azerbaijan, and Georgia. Among these 27 species, eight were translocated from the Black Sea basin to the Caspian Sea basin. Out of these 27 non-native fishes, 15 species have become established (three of them being considered invasive) and six fish species could not survive in the wild.


2020 ◽  
Vol 71 (11) ◽  
pp. 1464
Author(s):  
John D. Koehn ◽  
Stephen R. Balcombe ◽  
Lee J. Baumgartner ◽  
Christopher M. Bice ◽  
Kate Burndred ◽  
...  

The Murray–Darling Basin (MDB) is Australia’s food bowl, contributing 40% of agricultural production and supporting a population of over 4 million people. Historically, the MDB supported a unique native fish community with significant cultural, subsistence, recreational, commercial and ecological values. Approximately one-quarter of the MDB’s native species are endemic. Changes to river flows and habitats have led to a >90% decline in native fish populations over the past 150 years, with almost half the species now of conservation concern. Commercial fisheries have collapsed, and important traditional cultural practices of First Nations People have been weakened. The past 20 years have seen significant advances in the scientific understanding of native fish ecology, the effects of human-related activities and the recovery measures needed. The science is well established, and some robust restoration-enabling policies have been initiated to underpin actions. What is now required is the political vision and commitment to support investment to drive long-term recovery. We present a summary of 30 priority activities urgently needed to restore MDB native fishes.


2021 ◽  
Vol 49 (4) ◽  
pp. 649-653
Author(s):  
David Julián Palma-Cancino ◽  
Mao Ernesto Rafael Basto-Rosales ◽  
Carlos Alfonso Álvarez-González ◽  
Rafael Martínez-García ◽  
Daniel Badillo-Zapata ◽  
...  

The development of native fish aquaculture represents an important alternative to mitigate ecological displacement generated by exotic fish. The introduction of native fish in polyculture systems with high commercial value fishes has provided a useful strategy for sustainable aquaculture development. The present study aims to provide information on tilapia, as an exotic species, and Dormitator latifrons, as a native species, in a duo culture not programmed as such. Using juveniles of Pacific fat sleeper D. latifrons leftovers from another experiment, we decide to analyze and report the biological feasibility of a duoculture system with this species and Nile tilapia (Oreochromis niloticus). Two hundred fifty organisms of each species were placed for 90 days in a concrete tank with a capacity of 50 m3 to evaluate the compatibility of these species. The biological variables measured were growth, survival, feed conversion rate, and protein efficiency. The findings suggest a good interaction between species, with adequate growths and a survival rate of 98%. No antagonistic behavior was observed during confinement, suggesting the duoculture of these species may represent a good alternative for tropical sustainable aquaculture.


2021 ◽  
Author(s):  
Gregg Henderson

Abstract C. formosanus is often transported by boats and shipping containers to port cities before being carried further inland via landscape materials such as railroad ties (railway sleepers). This may explain the current C. formosanus distribution in the USA with coastal areas more densely infested than inland areas (Hochmair and Scheffrahn, 2010). Temperature and humidity are primary factors affecting the establishment of C. formosanus, and it is potentially invasive to areas of high humidity approximately 35° north and south of the equator (Su and Tamashiro, 1987). Competition from native species is another limiting factor for many exotic pests, but C. formosanus is more aggressive and is known to out-compete the endemic termites such as Reticulitermes species. Another factor that has allowed the successful establishment and spread of C. formosanus in exotic areas has been the pest control industry's heavy reliance on soil termiticide barriers for subterranean termite control since the 1950s. Numerous studies, using mark-recapture methods, have revealed that a single colony of C. formosanus might contain several million termites that forage up to 100 m in the soil (Lai, 1977; Su and Scheffrahn, 1988). These agree with the results of excavation studies for C. formosanus colonies (Ehrhorn, 1934; King and Spink, 1969). Because of the large colony size, the application of soil termiticides beneath a structure does not usually have a major impact on the overall population, and the surviving colony continues to produce alates that can further infest nearby areas. Once established, C. formosanus has never been completely eradicated from an area. The dependency of soil termiticide barriers as the primary tool for subterranean termite control is probably the main reason for the establishment and spread of C. formosanus from four isolated port cities in the 1960s in the USA to all south-eastern states by 2001.


Author(s):  
András Specziár ◽  
Tibor Erős

A fish-based index is proposed to indicate the ecological status of Lake Balaton, Hungary in accordance with the standard of the European Water Framework Directive (WFD). The Balaton fish index (BFI) synthetises information of 13 lake-specific fish metrics including gillnetting and electric fishing data of species richness of native assemblages, relative abundance, biomass and age structure of native key species, representation of non-native species and general health status. The main anthropogenic pressures considered were the degradation of littoral habitats, invasion of non-native fish species, eutrophication and fishing/angling including stocking. Ecological quality ratio (EQR) is assessed by relating actual fish assemblage metrics to the supposed undisturbed reference status of Lake Balaton reconstructed by expert judgement based on recent and historic information on the fish fauna and its changes. Values of BFI were consistent and indicated good ecological status of Lake Balaton in the period of 2005–2018. This study provides an example on how an EQR assessment methodology might be established in unique habitats with no possibilities for statistical evaluation of pressure-respond relationships and exact determination of the reference status.


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