scholarly journals Occurrence of non-native red cherry shrimp in European temperate waterbodies: a case study from Hungary

2019 ◽  
pp. 9 ◽  
Author(s):  
András Weiperth ◽  
Veronika Gábris ◽  
Tibor Danyik ◽  
Anna Farkas ◽  
Pavlína Kuříková ◽  
...  
Keyword(s):  
Water Temperature ◽  
Native Species ◽  
Carpathian Basin ◽  
Decapod Crustaceans ◽  
Pet Trade ◽  
First Occurrence ◽  
Polluted Waters

The international pet trade has caused numerous introductions of non-native species globally. This is also true for freshwater decapod crustaceans including the red cherry shrimp. This tiny creature has been previously found in thermally polluted waters in Europe (Germany and Poland). Here, we present its first occurrence in Hungary and in the entire Carpathian Basin. The species was sampled once per month over 1 yr, from November 2017 to November 2018 in a natural thermal pond (spa) and also in an adjoining non-thermal brook in Miskolctapolca, Hungary. Shrimps were preyed upon by adult fishes in the locality but many individuals, including ovigerous females and juveniles, were recorded within the survey continuously. The density of shrimps was positively correlated with the water temperature, despite some individuals being found in the non-thermal stream and also in winter. We consider that the population of this species in Hungary is now well-established and self-sustaining.

scholarly journals Invasive Potential of Pet-Traded Pill-Box Crabs from Genus Limnopilos

Diversity ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 91 ◽  
Author(s):  
Jiří Patoka ◽  
Lucie Bohatá ◽  
Tomáš Karella ◽  
Jana Marková ◽  
Ernik Yuliana ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Native Species ◽  
Continuous Monitoring ◽  
Global Perspective ◽  
Decapod Crustaceans ◽  
Invasive Potential ◽  
Pet Trade ◽  
Climate Matching ◽  
Tropical Regions ◽  
Freshwater Crabs

The pet trade in aquatic animals is known to be one of the main sources of non-native species worldwide. Freshwater decapod crustaceans have increased in popularity as ornamentals in the last two decades. Freshwater crabs of the genus Limnopilos were discovered by hobby aquarists and introduced on the market in 2008. They are generally considered interesting additions to an aquarium, but information about their living requirements are scarce. Additionally, their invasive potential is not known. Here, we present a survey of the availability of Limnopilos crabs on the market in Europe and North America and analyzed the invasive potential of all species from the genus based on climate matching from a global perspective. The only species recorded in the pet trade is L. naiyanetri, but future introduction of other species is discussed. Certain tropical regions were identified as the most suitable for the potential establishment of Limnopilos crabs including the northern part of South America, and L. microrhynchus was evaluated as the highest risk species. In this pilot study, we also suggest some points to be answered regarding further improving the risk assessment and also recommend continuous monitoring of the market for ornamental decapods.

Endangered Butterflies and their Non-Native Host Plants: Examining Shifting Values of Belonging in Restoration

2019 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Robert M. Anderson ◽  
Amy M. Lambert
Keyword(s):  
Ecological Restoration ◽  
Native Species ◽  
Puget Sound ◽  
A Value ◽  
The Social ◽  
Remote Island ◽  
Scientific Truth ◽  
Native Host

The island marble butterfly (Euchloe ausonides insulanus), thought to be extinct throughout the 20th century until re-discovered on a single remote island in Puget Sound in 1998, has become the focus of a concerted protection effort to prevent its extinction. However, efforts to “restore” island marble habitat conflict with efforts to “restore” the prairie ecosystem where it lives, because of the butterfly’s use of a non-native “weedy” host plant. Through a case study of the island marble project, we examine the practice of ecological restoration as the enactment of particular norms that define which species are understood to belong in the place being restored. We contextualize this case study within ongoing debates over the value of “native” species, indicative of deep-seated uncertainties and anxieties about the role of human intervention to alter or manage landscapes and ecosystems, in the time commonly described as the “Anthropocene.” We interpret the question of “what plants and animals belong in a particular place?” as not a question of scientific truth, but a value-laden construct of environmental management in practice, and we argue for deeper reflexivity on the part of environmental scientists and managers about the social values that inform ecological restoration.

Self-reference in early speech of children speaking Slovak

2018 ◽  
Vol 6 (2) ◽  
pp. 14-35
Author(s):  
Jana Kesselová
Keyword(s):  
Individual Case ◽  
Early Age ◽  
Self Awareness ◽  
Upper Limit ◽  
First Occurrence ◽  
Social Deixis ◽  
Self Reference ◽  
Vega 1 ◽  
Slovak Language

Abstract The study focuses on the process of being aware of own I in children acquiring Slovak language at an early age and living in a Slovak family. The aim of the research is to understand the process of acquiring the means by which children refer to themselves in the interaction with an adult person. The research uses the qualitative longitudinal method of individual case study. A child’s speech is researched from the very first occurrence of a self-reference mean in 16th month up to the upper limit of early age (36th month) and all that is based on audio-visual records transcripts. The following are researched: (a) succession of self-reference means acquisition in early childhood, (b) function of self-reference linguistic means, (c) process of child’s self-awareness. The results obtained based on the linguistic data in Slovak language are compared with the results of similarly focused researches in English, French, Polish, Russian and Bulgarian language. The research reveals some constants in the development of self-reference instruments that can be observed throughout various language-cultural environments. The research is a part of solutions within the grant project VEGA 1/0099/16 Personal and Social Deixis in Slovak Language.

scholarly journals Monitoring Exotic Beetles with Inexpensive Attractants: A Case Study

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 462
Author(s):  
Enrico Ruzzier ◽  
Andrea Galli ◽  
Luciano Bani
Keyword(s):  
Native Species ◽  
Large Scale ◽  
Red Wine ◽  
Forest Type ◽  
Popillia Japonica ◽  
Complex Activity ◽  
Local Fauna ◽  
Apple Cider ◽  
Trap Placement

Detecting and monitoring exotic and invasive Coleoptera is a complex activity to implement, and citizen science projects can provide significant contributions to such plans. Bottle traps are successfully used in wildlife surveys and can also be adapted for monitoring alien species; however, a sustainable, large scale trapping plan must take into account the collateral catches of native species and thus minimize its impact on local fauna. In the present paper, we tested the use of bottles baited with standard food products that can be purchased in every supermarket and immediately used (apple cider vinegar, red wine, and 80% ethyl alcohol) in capturing exotic and invasive beetles in the area surrounding Malpensa Airport (Italy). In particular, we reduced the exposition type of the traps in each sampling round to three days in order to minimize native species collecting. We found a significant effect of the environmental covariates (trap placement, temperature, humidity, and forest type) in affecting the efficiency in catching target beetles. Nearly all invasive Nitidulidae and Scarabaeidae known to be present in the area were captured in the traps, with apple cider vinegar usually being the most effective attractant, especially for the invasive Popillia japonica.

scholarly journals Freshwater temperature in the state of Rio Grande do Sul, Southern Brazil, and its implication for fish culture

2008 ◽  
Vol 6 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Luciano de Oliveira Garcia ◽  
Carlos Eduardo Copatti ◽  
Flávio Wachholz ◽  
Waterloo Pereira Filho ◽  
Bernardo Baldisserotto
Keyword(s):  
Water Temperature ◽  
Fish Species ◽  
Native Species ◽  
Amazon Basin ◽  
Rio Grande ◽  
The State ◽  
Tropical Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Lower Growth

In this study we verified data of water temperatures collected by CORSAN-RS from 1996 to 2004 in several cities of the state of Rio Grande do Sul, southern Brazil, and analyzed the possibility of raising the most cultivated fish species in Brazil. The water temperature from 1996 to 2004 was 16 to 28ºC in summer, 17 to 23ºC in fall, 14 to 17ºC (down to 9ºC in the coldest months) in winter and 14 to 21ºC in spring. Native species of this state, such as silver catfish (Rhamdia quelen), traíra (Hoplias malabaricus), dorado (Salminus brasiliensis), pintado (Pimelodus maculatus), as well as carps (family Cyprinidae), are resistant to the low winter temperatures. These species have a lower growth rate in coldest months (winter/spring) but a good development in warmer months (summer/fall), reaching a satisfactory performance throughout the year. In the periods of more intense cold, mortality of some introduced species, such as surubim from Amazon Basin (Pseudoplatystoma sp.), pirapitinga (Piaractus brachypomus), pirarucu (Arapaimas gigas), pacu (Piaractus mesopotamicus), tambaqui (Colossoma macropomum) and Nile tilapia (Oreochromis niloticus) may occur. In addition, as most tropical species have a thermal range for growth and reproduction between 20 to 28ºC, some species may have poor development even in fall. Therefore, water temperature in this state should be considered in the choice of fish species to be cultivated.

scholarly journals Analisis Kondisi Kualitas Air Pada Budidaya Ikan Kerapu Tikus (Cromileptes altivelis) Di Situbondo [Analysis Of Water Quality Conditions On Humpback Grouper Culture (Cromileptes altivelis) In Situbondo]

2019 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Ervany Eshmat N, Abdul Manan
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Economic Value ◽  
International Markets ◽  
Fish Culture ◽  
Quality Analysis ◽  
Local Market ◽  
Descriptive Method

Abstract The humpback grouper (Cromileptes altivelis) is one of the fishery commodities with high economic value in both local and international markets. The price of humpback grouper can reach Rp. 200,000 - Rp. 400,000 / kilogram in the local market. The humpback grouper is potentially to be developed in most coastal areas of Indonesia. The conditions of water quality have a very important role for the success of fish culture of humpback grouper. To that end, monitoring and management of water quality are necessary in fish culture. The purpose of this case study is to determine the water quality conditions on humpback grouper culture in BBAP, Situbondo. The study was conducted on 16 January until 16 February 2012. The study method use descriptive method. From the results of water quality analysis, the water in humpback grouper broodstock ponds (I1 and I2) is no smell, no colour water, temperature 26.1-30 oC, salinity 27-35 ppt, dissolved oxygen 3.3-3.9 ppm, ammonia levels <0.001-0.22 ppm, nitrite levels 0.0075-0.085 ppm, alkalinity 110-120 ppm and pH 7.94-8.18. The water in humpback grouper hatchery ponds (B1 and B2) is no smell, green colour water, temperature 26.7-29.3 oC, salinity 27-34 ppt, dissolved oxygen 2.7-3.7 ppm, ammonia levels 0.0781-0.28 ppm, nitrite levels 0.0225-3.3305 ppm, alkalinity 94-126 ppm, and pH 7.14-7.81.

Nutrient dynamics in an Andean forest region: a case study of exotic and native species plantations in southern Ecuador

New Forests ◽  
2019 ◽  
Vol 51 (2) ◽  
pp. 313-334
Author(s):  
Pablo Quichimbo ◽  
Leticia Jiménez ◽  
Darío Veintimilla ◽  
Karin Potthast ◽  
Alexander Tischer ◽  
...  
Keyword(s):  
Native Species ◽  
Nutrient Dynamics ◽  
Forest Region ◽  
Southern Ecuador

Assessing the invasion threat of non-native plant species in protected areas using Herbarium specimen and ecological survey data. A case study in two rangeland bioregions in Queensland

2017 ◽  
Vol 39 (1) ◽  
pp. 85
Author(s):  
Michael R. Ngugi ◽  
Victor John Neldner
Keyword(s):  
Protected Areas ◽  
Survey Data ◽  
Native Species ◽  
Native Plants ◽  
Herbarium Specimen ◽  
Native Plant ◽  
Economic Productivity ◽  
Ecological Survey ◽  
National Significance

Naturalised non-native plants that become invasive pose a significant threat to the conservation of biodiversity in protected areas (areas dedicated and managed for long-term conservation of nature), economic productivity of agricultural businesses, and societal impacts including community, culture infrastructure and health. Quantifying the spread, potential dominance and invasion threat of these species is fundamental to effective eradication and development of threat mitigation policy. But this is often hampered by the lack of comprehensive data. This study used existing ecological survey data from 2548 sites and 64 758 Herbarium specimen records to document the status and abundance of non-native plants in two case study bioregions, Cape York Peninsula (CYP) and the Desert Uplands (DEU) in Queensland covering a total area of 186 697 km2. There were 406 non-native species in the CYP, 186 (45.6%) of which are known environmental weeds and 159 non-natives in DEU, of which 69 (43.5%) are environmental weeds. Inside the protected areas, there were 98 species of environmental weeds in CYP, 27 of which are listed as weeds of State significance (Weeds of National Significance (WONS), Queensland declared and non-declared pest plants categories). In DEU, there were 18 environmental weeds inside protected areas and none of them was listed as a weed of State significance. Non-native species that recorded foliage cover dominance in the ecological site data are generally recognised as environmental weeds in Queensland. The threat of weeds from outside of protected areas was serious, with 41 weeds of State significance found in CYP, five of which are WONS, and 25 weeds of State significance found in DEU, 10 of which are WONS.

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