scholarly journals Earthworms (Oligochaeta: Lumbricidae) of Interior Alaska

2018 ◽  
Vol 6 ◽  
pp. e27427 ◽  
Author(s):  
Megan Booysen ◽  
Derek Sikes ◽  
Matthew Bowser ◽  
Robin Andrews
Keyword(s):  
Sample Size ◽  
Exotic Species ◽  
Native Species ◽  
Coastal Regions ◽  
South Eastern ◽  
South Central ◽  
Interior Alaska ◽  
The Family ◽  
The University

Earthworms in the family Lumbricidae in Alaska, which are known from coastal regions, primarily in south-central and south-eastern Alaska, are thought to be entirely non-native and have been shown to negatively impact previously earthworm-free ecosystems in study regions outside of Alaska. Despite occasional collections by curious citizens, there had not been a standardised earthworm survey performed in Interior Alaska and no published records exist of earthworms species from this region. Mustard extraction was used to sample six locations that differed in elevation, mostly in the College region of Fairbanks, Alaska. Two of the six locations yielded earthworms. There was no relationship between earthworm abundance and elevation (p = 0.087), although our sample size was small. Our sampling, combined with specimens in the University of Alaska Museum, has documented four exotic species and one presumed native species of lumbricid earthworms in Interior Alaska.

scholarly journals A new record of Betta splendens (Anabantiformes: Osphronemidae) for the northeastern Brazil

2021 ◽  
Vol 28 (1) ◽  
pp. 112-119
Author(s):  
Caroline Da Silva Oliveira ◽  
Felipe Pontieri de Lima ◽  
Diogo Freitas Souza ◽  
Ana Maria Peixoto Fontes Vicensotto ◽  
André Batista Nobile
Keyword(s):  
Biological Control ◽  
Exotic Species ◽  
Natural Environment ◽  
Native Species ◽  
New Record ◽  
Betta Splendens ◽  
Northeastern Brazil ◽  
Special Importance ◽  
Natural Community ◽  
The Family

The introduction of exotic species, although harmful to the natural environment, still occurs accidentally, intentionally or as a strategy of biological control. In this work, a specimen of Betta splendens was collected and recorded for Northeastern Brazil, a fish of the family Osphronemidae, originally from Asia. This species has the potential to compete with the native species, causing alterations in the natural community. The record of this species in Brazilian environments and the lack of diagnostic works on this region makes this work of special importance and as an incentive for future investigations.

scholarly journals Distribuição espacial da infestação por hemiparasitas Loranthaceae na arborização viária de Blumenau, SC

Terr Plural ◽  
2020 ◽  
Vol 14 ◽  
pp. 1-14
Author(s):  
Ana Carolina Boschetti ◽  
Charles Costa Coelho ◽  
Larissa Álida Bini ◽  
Laura Grimberg de Sousa Chaveca ◽  
Julio Cesar Refosco
Keyword(s):  
Exotic Species ◽  
Random Sample ◽  
Native Species ◽  
Street Trees ◽  
Heat Maps ◽  
Urban Street ◽  
Exotic Trees ◽  
The Family ◽  
Sample Points ◽  
The City

This study evaluated the degree of infestation of hemiparasites of the family Loranthaceae in the urban street trees of Blumenau in 200 random sample points considering a buffer of 100 m. It was identified 19 families, 33 genera, and 39 species, counting 167 trees. From these, 66% were exotic species, 17.3% with some degree of infestation. By contrast, only 1.97% of native species were infected with mistletoe. Heat maps indicate that the highest density of infested trees occurred in central areas of the city where the presence of street trees is greater and, consequently, the possibility of contagion. Intervention is recommended in affected individuals through manual pruning and removal of the hemiparasites. Given the susceptibility of infestation in exotic trees, it is recommended to be replaced by species less susceptible.

scholarly journals Tree biodiversity in USU green space: Exotic plant and its risk to native species

2021 ◽  
Vol 886 (1) ◽  
pp. 012035
Author(s):  
A Susilowati ◽  
H H Rachmat ◽  
A B Rangkuti ◽  
A H Iswanto ◽  
D Elfiati ◽  
...  
Keyword(s):  
Exotic Species ◽  
Tree Species ◽  
Native Species ◽  
Experimental Studies ◽  
Urban Ecosystems ◽  
Native Plant ◽  
Tropical Regions ◽  
Native Plant Species ◽  
The University ◽  
Harmful Effects

Abstract Globally, urban ecosystems provide important green spaces for biodiversity conservation. Many exotic species are grown in tropical urban ecosystems, and their harmful effects on native species and pollinator communities have been widely documented. Therefore, the purpose of this research is to determine the origin (native or exotic to Indonesia, sexual and reproductive system) of tree species on the University of Sumatera’s (USU) campus. Field inventory methods were used in this study for observed tree species on the USU campus. All tree species were observed, their flowering observed if any. According to our research, the USU green area comprises a collection of 121 tree species. Seventy species (57.85 %) are native to Indonesia, while 51 species (42.15 %) are exotics from other tropical regions. In terms of individual abundance, these values are 37.28% native and 62.72% exotic. The exotic trees on the USU campus show monoecious and dioecious flower sexuality; 19 species are hermaphrodite, two species have self-incompatibility characters, seven species are dioecious, and 23 species are monoecious. Together with the results from the few other experimental studies, it concluded that the increase of exotic species plantation in USU campus might indicate risk for animal interactions (e.g., pollination; dispersal), threaten reproduction of native plant species, pollination specialization, habitat, and other life-history properties. Therefore, the use of these exotic species needs special attention for stakeholders at USU.

scholarly journals Florida's Invaders: Exotic Pests

EDIS ◽  
1969 ◽  
Vol 2003 (4) ◽  
Author(s):  
Center For Natural Resources
Keyword(s):  
Natural Resources ◽  
Exotic Species ◽  
Native Species ◽  
Natural Ecosystems ◽  
University Of Florida ◽  
Exotic Pests ◽  
Minor Revision ◽  
The University

Florida's natural ecosystems are increasingly coming under attack by invading exotic species which displace native species, thereby degrading the diversity of floral and faunal resources. This publication was produced by the Center for Natural Resources at the University of Florida. CNR 8 is part of a Program Summary Series. Firstpublished: September 2000. Minor revision: March 2003.  

Youth Culture Features in the Light of Preferred Role Models and Life Styles

2018 ◽  
Vol 5 (2) ◽  
pp. 163-174
Author(s):  
Amel Alić ◽  
Haris Cerić ◽  
Sedin Habibović
Keyword(s):  
Role Models ◽  
Family Background ◽  
Intercultural Sensitivity ◽  
Way Of Life ◽  
Social Sciences And Humanities ◽  
Life Styles ◽  
The Family ◽  
The Everyday ◽  
General Data ◽  
The University

Abstract The aim of this research was to determine to what extent different variables describe the style and way of life present within the student population in Bosnia and Herzegovina. In this sense, in addition to general data on examinees, gender differences were identified, the assessment of parental dimensions of control and emotion, overall family circumstances, level of empathy, intercultural sensitivity, role models, preferences of lifestyles, everyday habits and resistance and (or) tendencies to depressive, anxiety states and stress. The survey included a sample of 457 examinees, students of undergraduate studies at the University of Zenica and the University of Sarajevo, with a total of 9 faculties and 10 departments covering technical, natural, social sciences and humanities. The obtained data give a broad picture of the everyday life of youth and confirm some previously theoretically and empirically justified theses about the connection of the family background of students, everyday habits, with the level of empathy, intercultural sensitivity and preferences of the role models and lifestyles of the examinees.

HIV/AIDS Knowledge and Risk-Taking Behaviours among Youths at a University in Enugu, Nigeria

2018 ◽  
Vol 20 (1) ◽  
Author(s):  
Ada C. Nwaneri ◽  
Okwudili Callistus Ezike ◽  
Agnes N. Anarado ◽  
Ifeoma Ndubisi ◽  
Jane-Lovena Onyia-Pat
Keyword(s):  
Risk Taking ◽  
Control Strategies ◽  
Analysis Of Covariance ◽  
Cross Sectional ◽  
Awareness Campaigns ◽  
South Eastern ◽  
Risky Behaviours ◽  
Aids Knowledge ◽  
The University ◽  
Hiv Aids

 A national sentinel survey of 2006 shows that Enugu State in south-eastern Nigeria is the worst hit by HIV infections. Despite numerous control strategies having been implemented, the state was still reported by another national HIV sentinel survey in 2010 as the worst hit by HIV/AIDS within the zone, and that youths are the most affected. The researchers conducted a cross-sectional descriptive survey to assess the HIV/AIDS knowledge and risk-taking behaviours of youths at a federal university in Enugu, south-eastern Nigeria. They adopted a multistage sampling method to recruit 460 unmarried, consenting students between 15 and 30 years of age, from three faculties of the university. Almost 90 per cent of the university youths had a sound knowledge of key concepts related to HIV/AIDS; despite this, a subset (7.39%) still engaged in risk-taking behaviours. The major risky behaviours identified include having premarital sex, having multiple sexual partners, the sharing of shaving or razor blades, the use of public clippers and tribal marking. Although an analysis of variance demonstrated no significant relationship (t = −0.036) between university youths’ knowledge of HIV/AIDS and their related risk-taking behaviour, risky behaviours were found to be more (13%) among respondents who had insufficient or incorrect knowledge of the disease. An analysis of covariance, however, showed that gender and socio-economic backgrounds were not determinants of the HIV/AIDS risk-taking behaviours of these youths. Therefore, factors such as attitude or culture are areas that should be focused on, and should then, along with educational awareness campaigns, help to reduce the spread and prevalence of the disease.

scholarly journals From the Inquisition Pyre to Insertion into the Church: The Familial and Social Trajectory of Hernando Ortiz, a Jewish Convert in the Spanish Empire in the 16th Century

2021 ◽  
Vol 10 (7) ◽  
pp. 264
Author(s):  
Clara Ramirez
Keyword(s):  
Iberian Peninsula ◽  
New Spain ◽  
Spanish Empire ◽  
16Th Century ◽  
Active Member ◽  
Jewish Ancestry ◽  
The Family ◽  
To Come ◽  
The University ◽  
The Church

This is a study of the trajectory of a Jewish converso who had a brilliant career at the University of Mexico in the 16th century: he received degrees from the faculties of arts, theology and law and was a professor for more than 28 years. He gained prestige and earned the respect of his fellow citizens, participated in monarchical politics and was an active member of his society, becoming the elected bishop of Guatemala. However, when he tried to become a judge of the Inquisition, a thorough investigation revealed his Jewish ancestry back in the Iberian Peninsula, causing his career to come to a halt. Further inquiry revealed that his grandmother had been burned by the Inquisition and accused of being a Judaizer around 1481; his nephews and nieces managed, in 1625, to obtain a letter from the Inquisition vouching for the “cleanliness of blood” of the family. Furthermore, the nephews founded an entailed estate in Oaxaca and forbade the heir of the entail to marry into the Jewish community. The university was a factor that facilitated their integration, but the Inquisition reminded them of its limits. The nephews denied their ancestors and became part of the society of New Spain. We have here a well-documented case that represents the possible existence of many others.

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