scholarly journals Geographical Distribution and Long-Term Monitoring of Physokermes hellenicus (Hemiptera: Coccomorpha: Coccidae) on Abies spp. (Pinales: Pinaceae) in Greece

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1001
Author(s):  
Iosif Papanastasiou ◽  
Nickolas G. Kavallieratos ◽  
Georgios Th. Papadoulis ◽  
Christina Emmanouil ◽  
Nikolaos G. Emmanouel
Keyword(s):  
Geographical Distribution ◽  
Natural Enemies ◽  
Abies Cephalonica ◽  
Protected Designation Of Origin ◽  
Honeydew Excretion ◽  
First Time ◽  
Term Monitoring ◽  
Adequate Data ◽  
Of Greece

The scale Physokermes hellenicus (Kozár & Gounari) (Hemiptera: Coccidae) has been recently included in the Greek entomofauna as a beneficial honeydew species. However, there are no adequate data about its geographical distribution and degree of infestation. Therefore, a study was conducted to examine these parameters in fifteen mountains of Greece. Furthermore, the monitoring of P. hellenicus infestation was carried out over a six-year period with regard to natural enemies and honeydew presence at three mountains (i.e., Menalon, Parnis and Tymfristos) that are traditional honeybee foraging areas. An extensive geographical distribution of the scale was negatively correlated with the latitude. Over the period of the study, P. hellenicus infestation exhibited a decreasing trend in the three mountains, which was more obvious at Menalon. The abundance of natural enemies of P. hellenicus, their effectiveness on honeydew excretion and the fecundity of P. hellenicus are discussed. The reduction in the honey produced at the Menalon mountain (a protected designation of origin product) could be attributed to the reduced presence of P. hellenicus in the fir forest. Among the other identified arthropods, Dreyfusia nordmannianae Eckstein (Hemiptera: Adelgidae) is reported for the first time infesting Abies cephalonica (Pinales: Pinaceae) in Greece. Furthermore, this species is reported for the first time as a co-parasite with P. hellenicus on A. cephalonica in Greece. Since D. nordmannianae is a serious pest, additional research is needed to determine its status in Greek fir forest ecosystems.

scholarly journals Birds of La Plata Island, Machalilla National Park, Ecuador

2016 ◽  
Author(s):  
Diego F Cisneros-Heredia
Keyword(s):  
Native Species ◽  
National Park ◽  
Passer Domesticus ◽  
La Plata ◽  
Sula Granti ◽  
Sula Leucogaster ◽  
Phoebastria Irrorata ◽  
First Time ◽  
Term Monitoring

La Plata Island, Machalilla National Park, is located 30 km off the Ecuadorian coast. In June 2000, I surveyed the avifauna of La Plata Island. In total I observed 57 species of birds (25 families). At least 17 species are known to breed on the island; in fact, for mainland Ecuador, Waved Albatross Phoebastria irrorata, Red-billed Tropicbird Phaethon aethereus, Nazca Booby Sula granti, and Red-footed Booby Sula sula only breed in La Plata. Long-tailed Mockinbird subspecies Mimus longicaudatus platensis is the only endemic bird taxon of the island. House Sparrow Passer domesticus is the only non-native species of the island. Brown Booby Sula leucogaster, Ecuadorian Ground-Dove Columbina buckleyi, Little Woodstar Chaetocercus bombus and Yellow-bellied Elaenia Elaenia flavogaster are reported for the first time on the island. Isla de La Plata maintains an important biodiversity, and it is necessary to implement conservation, management and tourism plans on a sustainable way along with long-term monitoring studies of the fauna and flora.

scholarly journals Dynamics of gamma diversity and abundance of diurnal butterflies (Lepidoptera, Papilionoformes) in the Nizhny Novgorod Region (Russia) under anthropogenic changes in landscapes over the last hundred years

2021 ◽  
Vol 4 (4) ◽  
pp. 32-41
Author(s):  
Stanislav K. Korb
Keyword(s):  
Russian Regions ◽  
Gamma Diversity ◽  
Natural Conditions ◽  
Boreal Species ◽  
Long Term Monitoring ◽  
Near Future ◽  
First Time ◽  
Term Monitoring ◽  
Nizhny Novgorod Region

The hundred-year dynamics of gamma diversity and butterflies’ abundance have been assessed for the first time in Russia for the Nizhny Novgorod Region. According to analyzed data, we forecast that no significant change in the number of 104 species of butterflies is expected, the number of 33 species in the near future is likely to increase, and the number of 11 species will continue to decline in the near future. A decrease in abundance of 23 steppe and arcto-boreal species is also expected. The reasons for the decrease in the number of species are considered, supported by the long-term monitoring dataset. Extrapolation of our conclusions for Russian regions with similar conditions (Kirov, Ivanovsk, Vladimir, Kostroma, Penza, and Ulyanovsk regions and the Republics of Mari El, Chuvash, and Mordovia), taking into account the natural conditions of these areas, seems applicable and promising.

scholarly journals Bilingual neume collections of the late middle ages - a new view at the well-known music sources

2017 ◽  
pp. 279-301
Author(s):  
Vesna Peno
Keyword(s):  
Middle Ages ◽  
Primary Sources ◽  
National Library ◽  
15Th Century ◽  
Late Middle Ages ◽  
Political Relations ◽  
First Time ◽  
Of Greece ◽  
New View

The long-term process of the byzantinization of Serbian culture and art, intensified in the framework of complex political relations at the beginning of the 15th century, is testified, among others, by the preserved bilingual Greek-Slavonic musical manuscripts. As the primary sources in the reconstruction of the Serbian church chanting art in the late Middle Ages, but also the Byzantine-Serbian musical connections, the neum manuscripts unambiguously confirm the existence of the bilingual worship practice at the time of Despotovina Serbia. The long-held views on the dated two neum anthologies from the Great Lavra (E 108) and the National Library of Greece (EVE 928), their scribes, composers and songs in this paper are critically examined for the first time.

scholarly journals Birds of La Plata Island, Machalilla National Park, Ecuador

2016 ◽  
Author(s):  
Diego F Cisneros-Heredia
Keyword(s):  
Native Species ◽  
National Park ◽  
Passer Domesticus ◽  
La Plata ◽  
Sula Granti ◽  
Sula Leucogaster ◽  
Phoebastria Irrorata ◽  
First Time ◽  
Term Monitoring

La Plata Island, Machalilla National Park, is located 30 km off the Ecuadorian coast. In June 2000, I surveyed the avifauna of La Plata Island. In total I observed 57 species of birds (25 families). At least 17 species are known to breed on the island; in fact, for mainland Ecuador, Waved Albatross Phoebastria irrorata, Red-billed Tropicbird Phaethon aethereus, Nazca Booby Sula granti, and Red-footed Booby Sula sula only breed in La Plata. Long-tailed Mockinbird subspecies Mimus longicaudatus platensis is the only endemic bird taxon of the island. House Sparrow Passer domesticus is the only non-native species of the island. Brown Booby Sula leucogaster, Ecuadorian Ground-Dove Columbina buckleyi, Little Woodstar Chaetocercus bombus and Yellow-bellied Elaenia Elaenia flavogaster are reported for the first time on the island. Isla de La Plata maintains an important biodiversity, and it is necessary to implement conservation, management and tourism plans on a sustainable way along with long-term monitoring studies of the fauna and flora.

scholarly journals CLINICAL AND EPIDEMIOLOGICAL FEATURES OF INFECTIONS ECOLOGICALLY RELATED TO TICKS IN THE CHELYABINSK REGION

2019 ◽  
Vol 24 (4) ◽  
pp. 178-187
Author(s):  
Alena Borisovna Konkova-Reidman ◽  
D. N. Barsukova ◽  
E. I. Bondarenko ◽  
A. N. Shvalov ◽  
S. V. Lucinina
Keyword(s):  
Ixodid Ticks ◽  
South Urals ◽  
Borrelia Miyamotoi ◽  
Detection Frequency ◽  
Tick Borne Encephalitis ◽  
Natural Foci ◽  
Chelyabinsk Region ◽  
First Time ◽  
Term Monitoring

An analysis of the incidence in the dynamics of years (1998-2018) showed that the leading place among infections transmitted by ixodid ticks in the Chelyabinsk region is occupied by tick-borne tick-borne borreliosis (IKB), tick-borne encephalitis (TBE) is less common. Long-term monitoring of the natural foci of TBE and IKB showed their high epizootological potential. In 2018, febrile forms prevailed in the structure of clinical forms of TBE - 61.9%, meningeal and focal forms were found in 28.5% and 9.4%, respectively. Focal forms were represented by meningoencephalitic and polioencephalomyelitis forms with the same frequency of 4.7%. In the structure of the nosological diagnosis of ICD in the South Urals, erythema forms of the disease prevail (69.5%). The detection frequency of Borrelia DNA of the pathogenic complex B.burgdorferi s.l. in the blood serum and leukocyte fraction of patients was 13%. In 4 patients, for the first time in the Chelyabinsk region, DNA of a new Borrelia miyamotoi Borrelia genotype was detected in whole blood samples and in the samples of the leukocyte fraction using PCR-RV. Phylogenetic analysis of B. miyamotoi was carried out on all sequences of glpQ and 23SrRNA gene fragments, deposited at NCBI and homologous sequences of Chelyabinsk-2018 isolates. The disease proceeded in non-erythema form, intoxication syndrome, myalgia, chills were observed in the clinical picture.

scholarly journals Physokermes hemicryphus (Dalman) a fir scale insect useful to apiculture in Greece

2017 ◽  
Vol 6 ◽  
pp. 11 ◽  
Author(s):  
L.A. Santas
Keyword(s):  
Population Level ◽  
Weather Conditions ◽  
Scale Insect ◽  
Instar Nymph ◽  
Biological Factors ◽  
Nymphal Instar ◽  
Abies Cephalonica ◽  
First Instar ◽  
First Time ◽  
Of Greece

Physokermes hemicryphus (Dalman) is an important honeydew producing scale insect useful to apiculture. It lives mainly on Abies cephalonica Loud. and to a lesser degree on Abies borisii regis Mattf. These fir trees exist in most fir forests of Greece. It has one generation per year. Overwintering takes place in the second instar nymph. The female overwinters under the bud scales of the forks of the fir host and the male on the needles. Adults appear in spring and crawlers in July. In August the population consists mainly of first instar nymphs. The second instar nymphs start to appear in August and by late October the whole population is at the second nymphal instar, which is the overwintering one. The insect occurs in the fir forests of Greece every year but its population level fluctuates, due to weather conditions and biological factors (parasites, predators). The coexistence on the same host plant of P. hemicryphus with the scale Eulecanium sericeum (Lindiger) and the aphid Milldams abietinus (Koch) prevents the visit of honeybees to fir trees. On the other hand it favours the augmentation of the P. hemicryphus population. Four parasites were found, from which the Encyrtidae Pseudorhopus testaceus (Razz.) and Microterus lunatus (Dalman), are recorded for the first time in Greek fauna.

scholarly journals CLINICAL AND EPIDEMIOLOGICAL FEATURES OF INFECTIONS ECOLOGICALLY RELATED TO TICKS IN THE CHELYABINSK REGION

2019 ◽  
Vol 24 (4) ◽  
pp. 178-187
Author(s):  
Alena Borisovna Konkova-Reidman ◽  
D. N. Barsukova ◽  
E. I. Bondarenko ◽  
A. N. Shvalov ◽  
S. V. Lucinina
Keyword(s):  
Ixodid Ticks ◽  
South Urals ◽  
Borrelia Miyamotoi ◽  
Detection Frequency ◽  
Tick Borne Encephalitis ◽  
Natural Foci ◽  
Chelyabinsk Region ◽  
First Time ◽  
Term Monitoring

An analysis of the incidence in the dynamics of years (1998-2018) showed that the leading place among infections transmitted by ixodid ticks in the Chelyabinsk region is occupied by tick-borne tick-borne borreliosis (IKB), tick-borne encephalitis (TBE) is less common. Long-term monitoring of the natural foci of TBE and IKB showed their high epizootological potential. In 2018, febrile forms prevailed in the structure of clinical forms of TBE - 61.9%, meningeal and focal forms were found in 28.5% and 9.4%, respectively. Focal forms were represented by meningoencephalitic and polioencephalomyelitis forms with the same frequency of 4.7%. In the structure of the nosological diagnosis of ICD in the South Urals, erythema forms of the disease prevail (69.5%). The detection frequency of Borrelia DNA of the pathogenic complex B.burgdorferi s.l. in the blood serum and leukocyte fraction of patients was 13%. In 4 patients, for the first time in the Chelyabinsk region, DNA of a new Borrelia miyamotoi Borrelia genotype was detected in whole blood samples and in the samples of the leukocyte fraction using PCR-RV. Phylogenetic analysis of B. miyamotoi was carried out on all sequences of glpQ and 23SrRNA gene fragments, deposited at NCBI and homologous sequences of Chelyabinsk-2018 isolates. The disease proceeded in non-erythema form, intoxication syndrome, myalgia, chills were observed in the clinical picture.

Evidence of recovery from phosphorus enrichment in Lake Michigan

2002 ◽  
Vol 59 (10) ◽  
pp. 1639-1647 ◽  
Author(s):  
Richard P Barbiero ◽  
Marc L Tuchman ◽  
Glenn J Warren ◽  
David C Rockwell
Keyword(s):  
Lake Michigan ◽  
Silica Content ◽  
Phosphorus Loading ◽  
Phosphorus Load ◽  
Southern Basin ◽  
Soluble Silica ◽  
Long Term Monitoring ◽  
First Time ◽  
Term Monitoring

During the last century, diatom production responses to increased phosphorus loading in Lake Michigan resulted in increased silica sedimentation losses and a consequent decline in the silica content of the lake. In light of recent reductions in phosphorus loading to the lake, we examined long-term monitoring data to determine if this trend might be reversing. Spring total phosphorus concentrations, although highly variable, declined approximately 1 μg·L–1 throughout the lake between 1983 and 2000. Spring soluble silica concentrations, an indicator of total in-lake reserves, increased from 1.1 to 1.6 mg·L–1 during this period. Summer epilimnetic silica concentrations in the southern basin were at apparently limiting levels of approximately 0.15 mg·L–1 until 1991 and then increased sharply. A similar trend was seen in the northern basin. Summer diatom populations increased in both basins after 1991, and ordination analyses suggest that the species composition of both spring and summer communities has responded to these silica increases. These results document for the first time a reversal of the silica depletion sequence and provide the most compelling evidence to date that phosphorus load reductions are having an impact on the Lake Michigan ecosystem.

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