scholarly journals Ecological Observations on Hybrid Populations of European Plethodontid Salamanders, Genus Speleomantes

Diversity ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 285
Author(s):  
Enrico Lunghi ◽  
Fabio Cianferoni ◽  
Stefano Merilli ◽  
Yahui Zhao ◽  
Raoul Manenti ◽  
...  
Keyword(s):  
Body Condition ◽  
Parental Species ◽  
Stomach Contents ◽  
Trophic Niche ◽  
Natural Hybrid ◽  
Ecological Information ◽  
Total Length ◽  
Plethodontid Salamanders ◽  
The Future ◽  
First Time

Speleomantes are the only plethodontid salamanders present in Europe. Multiple studies have been performed to investigate the trophic niche of the eight Speleomantes species, but none of these studies included hybrid populations. For the first time, we studied the trophic niche of five Speleomantes hybrid populations. Each population was surveyed twice in 2020, and stomach flushing was performed on each captured salamander; stomach flushing is a harmless technique that allows stomach contents to be inspected. We also assessed the potential divergence in size and body condition between natural and introduced hybrids, and their parental species. Previously collected data on Speleomantes were included to increase the robustness of these analyses. In only 33 out of 134 sampled hybrid Speleomantes we recognized 81 items belonging to 11 prey categories. The frequency of empty stomachs was higher in females and individuals from natural hybrid populations, whereas the largest number of prey was consumed by males. We compared the total length and body condition of 685 adult salamanders belonging to three types of hybrids and three parental (sub)species. Three group of salamanders (one hybrid and two parental species) showed significantly larger size, whereas no difference in body condition was observed. This study provided novel ecological information on Speleomantes hybrid populations. We also provided insights into the potential divergence between hybrids and parental species in terms of size and body condition. We discuss our findings, and formulate several hypotheses that should be tested in the future.

scholarly journals Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast

2019 ◽  
Vol 49 (4) ◽  
pp. 299-306
Author(s):  
Rory Romero de Sena OLIVEIRA ◽  
Marcelo Costa ANDRADE ◽  
Fabiola Seabra MACHADO ◽  
Élida Jesana Santana CUNHA ◽  
Flaviane Souto de FREITAS ◽  
...  
Keyword(s):  
Stomach Contents ◽  
Coefficient Of Determination ◽  
Brazilian Coast ◽  
Marine Fish Species ◽  
Fish Size ◽  
Total Length ◽  
Marine Predators ◽  
Sagittal Otolith ◽  
First Time ◽  
Otolith Size

ABSTRACT The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast. A total of 220 fish were sampled from the bycatch landed by the bottom-trawl industrial shrimp-fishing fleet between August and September 2016. All species had strong relationships between otolith measurements and fish total length with the coefficient of determination (r 2) ranging between 0.71 and 0.99. The variable most strongly related to fish total length was found to be the sagittal otolith length (OL) with 98% of the variability. These relationships are a useful tool to estimate length and mass of preyed fish from otoliths found in stomach contents of marine predators.

The Internal Stakes of the 2005 Elections: The Struggle for Influence in Egypt's National Democratic Party

2007 ◽  
Vol 61 (1) ◽  
pp. 95-111
Author(s):  
Virginie Collombier
Keyword(s):  
Democratic Party ◽  
Political System ◽  
The Political ◽  
Legislative Elections ◽  
The Future ◽  
External Actors ◽  
First Time

Beyond the relative opening of the political system that characterized 2005 in Egypt — with the President being elected directly for the first time and the increased competition allowed during legislative elections — the 2005 elections also constituted an opportunity to consider and evaluate the internal struggles for influence under way within the ruling National Democratic Party (NDP). In a context largely influenced by the perspective of President Husni Mubarak's succession and by calls for reform coming from both internal and external actors, changes currently occurring at the party level may have a decisive impact on the future of the Egyptian regime.

The Politics of Proximity: The Italian Response to the Albanian Crisis

1998 ◽  
Vol 32 (1) ◽  
pp. 203-222 ◽  
Author(s):  
Ted Perlmutter
Keyword(s):  
United Nations ◽  
Popular Opinion ◽  
Italian Case ◽  
Humanitarian Mission ◽  
Neighboring Country ◽  
The Future ◽  
The United Nations ◽  
To Come ◽  
First Time

This article focuses on the apparent disjunction between the Italian reluctance to allow Albanians to come as refugees and Italy's enthusiastic leadership of the United Nations military-humanitarian mission. It explains the Italian response both in terms of Italian popular opinion regarding Albanians and Italy's concern for the impression on Europe that its politics would make. Italy's leadership of the mission represents the first time a medium-sized power has assisted a neighboring country with whom it has had deep historical connections. The conclusion argues that such proximate interventions are likely to increase in the future, and spells out the implications of the Italian case.

Intergeneric hybrids between Thinopyrum and Psathyrostachys (Triticeae)

Genome ◽  
1990 ◽  
Vol 33 (6) ◽  
pp. 845-849 ◽  
Author(s):  
Richard R.-C. Wang
Keyword(s):  
Genome Analysis ◽  
Parental Species ◽  
Intergeneric Hybrids ◽  
Meiotic Pairing ◽  
Green Leaves ◽  
Psathyrostachys Juncea ◽  
Basic Genome ◽  
Chromosome Associations ◽  
Thinopyrum Elongatum ◽  
First Time

Intergeneric hybrids were synthesized for the first time from the diploid crosses Thinopyrum elongatum (JeJe) × Psathyrostachys juncea (NjNj), T. elongatum × P. fragilis (NfNf), T. bessarabicum (JbJb) × P. huashanica (NhNh), and T. bessarabicum × P. juncea, as well as from a cross between the amphidiploid of T. bessarabicum × T. elongatum (JbJbJeJe) and P. juncea. Spikes of these hybrids are morphologically intermediate between those of the parental species. Double spikelets occurred occasionally at central nodes of the spikes. Glaucous blue leaves appeared in the F1 only in the cross T. bessarabicum × P. huashanica, suggesting that the gene(s) for glaucous blue leaves in T. bessarabicum is (are) recessive to a gene(s) for green leaves in P. juncea but is (are) dominant to that for yellowish green leaves in P. huashanica. Meiotic pairing at metaphase I in these diploid (JN) and triploid (JJN) hybrids revealed a very low level of homology between the basic J and N genome. Therefore, the J and N genomes are nonhomologous and justifiably represented by different genome symbols. The triploid hybrids exhibited a pattern of chromosome associations that substantiated the earlier conclusion that the genomes in T. bessarabicum and T. elongatum are two versions of a basic genome (J). These hybrids will be useful in genome analysis, forming new Leymus species with the J and N genomes and broadening the diversity in the genus Pascopyrum with the SHJN genomes.Key words: hybrid, Thinopyrum, Psathyrostachys, genome.

scholarly journals Endoparasitic helminths of water frog complex in Poland: do differences exist between the parental species Pelophylax ridibundus and Pelophylax lessonae, and their natural hybrid Pelophylax esculentus?

2011 ◽  
Vol 48 (2) ◽  
pp. 108-115 ◽  
Author(s):  
M. Popiołek ◽  
B. Rozenblut-Kościsty ◽  
M. Kot ◽  
W. Nosal ◽  
M. Ogielska
Keyword(s):  
20Th Century ◽  
Parental Species ◽  
Helminth Species ◽  
Natural Hybrid ◽  
Intensity Of Infection ◽  
Water Frog ◽  
Pelophylax Ridibundus ◽  
Water Frogs ◽  
Pelophylax Esculentus ◽  
Cosmocerca Ornata

AbstractParasitic fauna of water frogs was mainly studied in the second half of the 20th century. However, these studies were done without differentiation into species and hybrids and pooled the 3 taxa as “water frogs” or “green frogs”. The aim of this study was to make an inventory of helminth species as well as their prevalence and intensity of infection in the two parental species (Pelophylax ridibundus and P. lessonae) and the hybrid (P. esculentus) of water frogs from 3 big populations composed of hundreds or thousands of individuals inhabited natural and seminatural landscapes in Poland. Eight helminth species were found: Polystoma integerrimum, Diplodiscus subclavatus, Opisthoglyphe ranae, Gorgodera cygnoides, Haematoloechus variegatus, Oswaldocruzia filiformis, Cosmocerca ornata and Acanthocephalus ranae. The results were compared with data from other, polish and European studies. Additionally we compared the level of infection among water frog taxa.

Outcomes of the sport event volunteer experience: examining demonstration effects on first-time and returning volunteers

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jordan T. Bakhsh ◽  
Erik L. Lachance ◽  
Ashley Thompson ◽  
Milena M. Parent
Keyword(s):  
Behavioral Intentions ◽  
Sport Participation ◽  
Community Members ◽  
Sport Event ◽  
Content Type ◽  
The Future ◽  
Sport Events ◽  
First Time ◽  
Sport Event Volunteers ◽  
The Relationship

PurposeThe purpose of this study is to examine if sport event volunteers were inspired by their event experience to volunteer in the future.Design/methodology/approachA postevent questionnaire was administered to 161 professional golf tournament volunteers, in which 93 respondents were identified as first-time volunteers of the event and 68 as returning volunteers. A moderation analysis was conducted to assess if previous event-specific volunteer experience moderated the relationship between volunteers' inspiration and future volunteer intentions.FindingsFirst-time event-specific volunteers were significantly more inspired to volunteer again than returning event-specific volunteers. Findings indicate volunteers can be inspired from their event experience toward future volunteer intentions.Research limitations/implicationsThis study offers conceptual understandings and new application of inspiration–behavioral intentions by examining sport events' (in)ability to inspire first-time and returning event volunteers to volunteer in the future. Findings are limited to the sport event volunteers' intention discussion.Practical implicationsThis study demonstrates how event stakeholders can create positive future behavioral intentions for community members through hosting sport events. By positioning first-time event-specific volunteers within roles that can elicit inspiration (e.g. interacting with athletes), event managers can foster stronger future volunteer intentions.Originality/valueThis study extends the understanding of demonstration effects by moving beyond the traditional sport event spectators and sport participation intention foci. It demonstrates that sport events can inspire different spectator groups (i.e. event volunteers) toward different future behavioral intentions (i.e. volunteer intentions). Findings address previous sport event volunteer assumptions regarding intention, inspiration and volunteer segments.

The Roman Imperial Cult in Smyrna

Belleten ◽  
2012 ◽  
Vol 76 (276) ◽  
pp. 385-402
Author(s):  
Murat Kılıç
Keyword(s):  
Hellenistic Period ◽  
Historical Process ◽  
Imperial Cult ◽  
The Past ◽  
The Future ◽  
The Right ◽  
Rising Power ◽  
First Time ◽  
The City

The origins of the imperial cult in Smyrna date back to the Hellenistic period. It is a fact that political concerns were effective in the generation of such cults. Predicting the super power of the future and proving to be a loyal ally whilst acting in satisfactory behaviors were essential factors. The right preference made between two fighting or contending powers ensured that a city would benefit from various privileges in the future. For example, Symrna, which had established a cult in the city previously on behalf of Stratonice, the mother of Antiochus II of Seleucid dynasty, would do the same by building a temple in the name of the dty of Rome for the first time in Asia in 195 BC, after recognizing the rising power. Later on, while giving permission to the provinces that wanted to establish an imperial cult, the Roman emperors and the Senate would consider first, their relationships with Rome in the past and second, their origins. Smyrna, building its relationships with the Roman state on a solid basis, was granted the title of neokoros three times by the Roman Emperors Tiberius, Hadrianus and Caracalla, respectively. In this essay, the development of the Roman imperial cult in Smyrna is discussed within the historical process outlined above. An attempt has been made to put forth new opinions about the issue by discussing the academicians' evaluations on the imperial cult, which apparently was effectively executed in Smyrna between the first and third centuries AD, with the support of epigraphic and numismatic evidences.

scholarly journals First record of Dero (Aulophorus) bimagnasetus Harman (Oligochaeta) from Brazil and habitat characteristics

2014 ◽  
Vol 74 (2) ◽  
pp. 483-488
Author(s):  
R. Campitelli-Ramos ◽  
JV. Lucca ◽  
LLD. Oliveira ◽  
MR. Marchese ◽  
O. Rocha
Keyword(s):  
Benthic Communities ◽  
First Record ◽  
Biological Data ◽  
Habitat Characteristics ◽  
Low Oxygen ◽  
Body Width ◽  
Ecological Information ◽  
Freshwater Biota ◽  
Physical And Chemical ◽  
First Time

Annelid worms represent a significant part of freshwater benthic communities worldwide and Oligochaeta is a particularly species-rich group. Dero (A) bimagnasetus (Naididae) previously found and described from a small marsh in Surinam in 1974, has now been found for the first time in Barra Lake, MG, Brazil. Due to the scarce biological data and absence of ecological information in the literature regarding this species we are presenting morphological information on the specimens obtained and the physical and chemical characteristics of the habitat they were found. This species occurred only in the littoral zone of Barra Lake, in muddy, low oxygen, low conductivity and low organic matter sediment. The four individuals collected ranged 3.17-4.15 mm total length; 0.25 - 0.26 mm body width and 0.16-0.21 mm3 total volume. Considering the present anthropic pressures on freshwater biota and fast biodiversity losses worldwide it is now recognized that attention must be paid to low abundance species and the urgency for preservation of their habitats.

Hong Kong and Shanghai: current and/or future international financial centres?

2015 ◽  
Vol 8 (3) ◽  
pp. 183-193
Author(s):  
John Adams ◽  
Andrew YC Wong
Keyword(s):  
Hong Kong ◽  
Success Factors ◽  
Reliability And Validity ◽  
Policy Makers ◽  
Content Type ◽  
Financial Centre ◽  
Future Success ◽  
The Future ◽  
Future Policy ◽  
First Time

Purpose – This paper publishes summary results for the first time of a major survey of senior financial practitioners undertaken in Hong Kong and Shanghai in 2005, and compares these with the Global Financial Centre Index first created in 2007 to determine the extent to which both are consistent. Design/methodology/approach – The research is based on a detailed survey and utilizes principal-components analysis to determine the primary factors relevant to the development of both cities as international financial centres (IFCs) and those which the respondents consider will be relevant in the future. Findings – The paper demonstrates that the key “success factors” for both cities in 2005 remain very important in the global financial centres index (GFCI) analysis ten years later but not necessarily by the same ranking. We also found that a number of the “primary” factors change when respondents are asked to consider future success factors. Research limitations/implications – The survey was conducted ten years ago; however, the results continue to have significant reliability and validity - especially when compared with the results of the GFCI report of 2014. Practical implications – The paper should enable policy makers and practitioners to better understand the future policy environment needed for extending the financial centre status of both Hong Kong and Shanghai. Originality/value – This is the first time (some) of the survey findings that have ever been published, and they represent a rich source of information – however, the authors will be examining the survey data for future publications.

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