scholarly journals Myxomycetes associated with a residential ecosystem

Karstenia ◽  
2021 ◽  
pp. 70-77
Author(s):  
Steven L. Stephenson ◽  
Yuri K. Novozhilov
Keyword(s):  
Distribution Patterns ◽  
Moist Chamber ◽  
Different Types

The myxomycetes associated with samples of the bark of living trees, ground litter, twigs, and aerial litter collected from a residential ecosystem were investigated with the use of moist chamber cultures. A total of 26 species representing 13 genera were recovered from 100 cultures prepared with samples of the four different types of substrates. The distribution patterns and ecology of these species are discussed in the context of the senior coauthor’s more than 40 years studying myxomycetes.

scholarly journals Microhabitat of small mammals at ground and understorey levels in a deciduous, southern Atlantic Forest

2013 ◽  
Vol 85 (2) ◽  
pp. 727-736 ◽  
Author(s):  
GERUZA L. MELO ◽  
BARBARA MIOTTO ◽  
BRISA PERES ◽  
NILTON C. CACERES
Keyword(s):  
Habitat Selection ◽  
Small Mammals ◽  
Strong Evidence ◽  
Animal Species ◽  
Deciduous Forest ◽  
Distribution Patterns ◽  
Microhabitat Use ◽  
Southern Brazil ◽  
Different Types ◽  
Didelphis Albiventris

Each animal species selects specific microhabitats for protection, foraging, or micro-climate. To understand the distribution patterns of small mammals on the ground and in the understorey, we investigated the use of microhabitats by small mammals in a deciduous forest of southern Brazil. Ten trap stations with seven capture points were used to sample the following microhabitats: liana, fallen log, ground litter, terrestrial ferns, simple-trunk tree, forked tree, and Piper sp. shrubs. Seven field phases were conducted, each for eight consecutive days, from September 2006 through January 2008. Four species of rodents (Akodon montensis, Sooretamys angouya, Oligoryzomys nigripes and Mus musculus) and two species of marsupials (Didelphis albiventris and Gracilinanus microtarsus) were captured. Captured species presented significant differences on their microhabitat use (ANOVA, p = 0.003), particularly between ground and understorey sites. Akodon montensis selected positively terrestrial ferns and trunks, S. angouya selected lianas, D. albiventris selected fallen trunks and Piper sp., and G. microtarsus choose tree trunks and lianas. We demonstrated that the local small-mammal assemblage does select microhabitats, with different types of associations between species and habitats. Besides, there is a strong evidence of habitat selection in order to diminish predation.

scholarly journals Distribution Patterns of Grasshoppers and Their Kin in the Boreal Zone

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Michael G. Sergeev
Keyword(s):  
North America ◽  
Distribution Patterns ◽  
Monotypic Genus ◽  
Boreal Zone ◽  
Flood Plains ◽  
The North ◽  
Mountain Steppes ◽  
Different Types ◽  
Low Levels ◽  
North Western

The distribution patterns of Orthoptera are described for the boreal zone. The boreal fauna of Eurasia includes more than 81 species. Many of them are widely distributed. The monotypic genusParacyphoderrisStorozhenko and at least 13 species are endemics or subendemics. About 50 species are known from boreal North America. Four endemic species are distributed very locally. Relationships between the faunas of the Eurasian and North American parts of the boreal zone are relatively weak. The boreal assemblages are usually characterized by the low levels of species diversity and abundance. Grasshoppers and their relatives occupy almost exclusively open habitats, such as different types of meadows, mountain steppes and tundras, clearings, openings, bogs, and stony flood plains. The local endemics and subendemics are found only in some habitats of the eastern part of Eurasia and the north-western part of North America. Retrospective and prospective of the boreal fauna of Orthoptera are also discussed.

scholarly journals Typology and distribution of antennal sensory organs of adults Haematobia irritans of the Midwest Region of Brazil

2018 ◽  
Vol 38 (1) ◽  
pp. 183-188 ◽  
Author(s):  
Fernando de Freitas Fernandes ◽  
Paulo Filemon Paolucci Pimenta
Keyword(s):  
Distribution Patterns ◽  
Monitoring And Control ◽  
Future Studies ◽  
Haematobia Irritans ◽  
Development Of Resistance ◽  
Different Types ◽  
Alternative Measures ◽  
Midwest Region ◽  
Different Strains ◽  
And Control

ABSTRACT: Considering the great economic and sanitarian importance of Haematobia irritans − the development of resistance of this species to the main chemical insecticides used in its control, in several other localities of the world; as well as that different strains of the same species frequently present different types and distribution patterns −, the present aim study was to investigate the typology and distribution of different types of sensillae of H. irritans adults, from populations of this fly present in Brazilian Midwest, with emphasis on olfactory sensillae. This study provides new data on the typology and sensillary distribution of antennal sensilla of this fly. In the antennal segments were found non-innervated spinules and ten subtypes of sensilla: long bristles sensillum, long basiconic sensillum, blunt coeloconic sensillum, clavate coeloconic sensilla − single-tip and double-tip subtypes −, grooved coeloconic sensillum, long grooved coeloconic sensillum, trichoid sensillum, coeloconic sensillum, and smaller basiconic sensillum. A slight sexual dimorphism was observed in the antennal sensillae of H. irritans. These results provide a morphological basis for future investigations on olfactory-mediated behavior of this species, and could assist future studies for the development of alternative measures to the monitoring and control of this fly populations, with less environmental impact.

scholarly journals Florida Arsenic Distribution Index: Quantifying the Distribution of Past and Present Arsenic Usage

2019 ◽  
Vol 16 (5) ◽  
pp. 744 ◽  
Author(s):  
Maya Scott-Richardson ◽  
Marilyn O’Hara Ruiz ◽  
Rebecca Smith
Keyword(s):  
Distribution Patterns ◽  
Industrial Applications ◽  
The State ◽  
Health Concern ◽  
Natural Occurrence ◽  
Arsenic Distribution ◽  
Different Types ◽  
Distribution Index ◽  
Acute And Chronic Exposure ◽  
High Arsenic

Arsenic is an abundant, highly toxic element that is a global health concern due to damage from acute and chronic exposure and the potential for high local concentrations in heavily populated areas. In Florida, arsenic has been used heavily in agricultural, commercial, and industrial applications for decades. While studies have identified and quantified the contributions of arsenic to the state, there are fewer studies that have attempted to index to identify spatial distribution patterns. The aim of this study was to develop representative indices that would identify and estimate the distribution of arsenic from historic and present usage for the state of Florida at the county-level. Eight variables are summarized and categorized into two different types of arsenic indices that represent the arsenic distribution from natural occurrence and anthropogenic practices in Florida. The anthropogenic index had distributions scores that ranged from 0.20 to 1.60 with a mean of 0.61 (SD = 0.34). The natural index had distribution scores that ranged from 1.00 to 3.00 and a mean of 1.47 (SD = 0.43). Our finding noticed comparability between high arsenic distributions mainly occur in counties located in the northwestern and southwestern regions in both the anthropogenic and natural indices with diverse arsenic sources contributions.

scholarly journals Seabirds as samplers of the marine environment – a case study of northern gannets

Ocean Science ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 337-347 ◽  
Author(s):  
Stefan Garthe ◽  
Verena Peschko ◽  
Ulrike Kubetzki ◽  
Anna-Marie Corman
Keyword(s):  
Wind Farms ◽  
Distribution Patterns ◽  
Dive Depth ◽  
Sea Surface ◽  
Breeding Colony ◽  
Data Loggers ◽  
Interdisciplinary Approaches ◽  
Different Types ◽  
Daylight Period

Abstract. Understanding distribution patterns, activities, and foraging behaviours of seabirds requires interdisciplinary approaches. In this paper, we provide examples of the data and analytical procedures from a new study in the German Bight (North Sea) tracking northern gannets (Morus bassanus) at their breeding colony on the island of Heligoland. Individual adult northern gannets were equipped with different types of data loggers for several weeks, measuring geographic positions and other parameters mostly at 3–5 min intervals. Birds flew in all directions from the island to search for food, but most flights targeted areas to the (N)NW (north–northwest) of Heligoland. Foraging trips were remarkably variable in duration and distance; most trips lasted 1–15 h and extended from 3 to 80 km from the breeding colony on Heligoland. Dives of gannets were generally shallow, with more than half of the dives only reaching depths of 1–3 m. The maximum dive depth was 11.4 m. Gannets showed a clear diurnal rhythm in their diving activity, with dives being almost completely restricted to the daylight period. Most flight activity at sea occurred at an altitude between the sea surface and 40 m. Gannets mostly stayed away from the wind farms and passed around them much more frequently than flying through them. Detailed information on individual animals may provide important insights into processes that are not detectable at a community level.

scholarly journals Seabirds as samplers of the marine environment – a case study in Northern Gannets

2016 ◽  
Author(s):  
Stefan Garthe ◽  
Verena Peschko ◽  
Ulrike Kubetzki ◽  
Anna-Marie Corman
Keyword(s):  
Wind Farms ◽  
Distribution Patterns ◽  
Dive Depth ◽  
Sea Surface ◽  
Breeding Colony ◽  
Data Loggers ◽  
Interdisciplinary Approaches ◽  
Different Types ◽  
Daylight Period

Abstract. Understanding distribution patterns, activities, and foraging behaviours of seabirds requires interdisciplinary approaches. In this paper, we provide examples of the data and analytical procedures from a new study in the German Bight, North Sea, tracking Northern Gannets (Morus bassanus) at their breeding colony on the island of Helgoland. Individual adult Northern Gannets were equipped with different types of data loggers for several weeks, measuring geographic positions and other parameters mostly at 3–5 min intervals. Birds flew in all directions from the island to search for food, but most flights targeted areas to the (N)NW of Helgoland. Foraging trips were remarkably variable in duration and distance; most trips lasted 1–15 h and extended from 3–80 km from the breeding colony on Helgoland. Dives of gannets were generally shallow, with more than half of the dives only reaching depths of 1–3 m. The maximum dive depth was 11.4 m. Gannets showed a clear diurnal rhythm in their diving activity, with dives being almost completely restricted to the daylight period. Most flight activity at sea occurred at an altitude between the sea surface and 40 m. Gannets mostly stayed away from the wind farms and passed around them much more frequently than flying through them. Detailed information on individual animals may provide important insights into various processes, based on multi-layer information.

scholarly journals Produção de mudas de maracujazeiro amarelo com diferentes tipos de enxertia e uso da câmara úmida

2015 ◽  
Vol 10 (2) ◽  
pp. 64
Author(s):  
R. M. da Silva ◽  
A. V. M. de Aguiar ◽  
V. Mendonça ◽  
E. De A. Cardoso ◽  
K. G. V. Garcia
Keyword(s):  
Experimental Design ◽  
Fruit Set ◽  
Dry Weight ◽  
Passion Fruit ◽  
Seedling Production ◽  
Moist Chamber ◽  
Crack Use ◽  
Different Types ◽  
Number Of Leaves ◽  
Graft Diameter

<p>O objetivo deste trabalho foi avaliar a combinação de três formas de realização da enxertia pelo método de garfagem e uso da proteção da enxertia com câmara úmida na a produção de mudas de maracujazeiro. O delineamento experimental adotado foi o de blocos ao acaso em esquema fatorial (3x2), com seis repetições, sendo cada parcela constituída de nove plantas, os fatores formaram as combinações de três formas de realização da enxertia pelo método de garfagem (fenda cheia, fenda lateral e fenda simples) e utilização e não do uso da proteção da enxertia com câmara úmida. Para produção das mudas dos portaenxertos e enxertos foram utilizadas sementes das cultivares FB 100 e redondo amarelo respectivamente. As enxertias foram realizadas aos 70 dias após a semeadura. Aos 21 dias após as enxertias foi avaliada a porcentagem de pegamento e a cada 14 dias após a enxertia avaliou-se a sobrevivência de plantas que permaneceram vivas, aos 56 dias avaliou-se o número de folhas, diâmetro do enxerto e portaenxerto, altura da planta e massa seca da parte aérea. Os tipos de enxertias por fenda cheia e fenda lateral, associadas ao uso da proteção com câmara úmida promoveram os melhores índices de pegamento e sobrevivência das mudas de maracujazeiro amarelo, porém o uso proteção promoveu um decréscimo no crescimento das plantas.</p><p align="center"><strong><em>Seedling production of yellow passionfruit with different types of graft and use of humid chamber</em></strong></p><p><strong>Abstract</strong><strong>: </strong>The objective at this search was to evaluate the combination of three forms of grafting by the grafting method and grafting using protection with damp in the production of passion fruit seedlings camera. The experimental design was randomized blocks in a 3x2 factorial arrangement with six replications, each plot were nine plants, the factors formed the combinations of three embodiments by the grafting method (cleft, crack and lateral simple) and crack use and not use protection grafting with moist chamber. Seedlings rootstocks production and grafts seeds of cultivars were used respectively FB 100 and round yellow respectively. The grafts were performed at 70 days after sowing. At 21 days after grafting was evaluated the percentage of fruit set and every 14 days after grafting, we evaluated the plants survival that remained alive, at 56 days assessed the number of leaves, rootstock and graft diameter, plant height and dry weight of shoots. The types of grafts for full and side slit slit associated with the use of protective moist chamber provided better rates of survival and fixation of passion fruit seedlings, however, the use protection caused a decrease in plant growth.<strong> </strong></p><p><strong> </strong></p>

scholarly journals Unique Trophoblast Chromatin Environment Mediated by the PcG Protein SFMBT2

2019 ◽  
Author(s):  
Priscilla Tang ◽  
Kamelia Miri ◽  
Susannah Varmuza
Keyword(s):  
Progenitor Cells ◽  
Distribution Patterns ◽  
Higher Order ◽  
Repetitive Elements ◽  
Polycomb Group ◽  
Data Sets ◽  
Different Types ◽  
Chromatin Proteins

ABSTRACTStem/progenitor cells are maintained by a chromatin environment, mediated in part by Polycomb group (PcG) proteins, that depresses differentiation. The trophoblast-specific PcG protein SFMBT2 is known to be required for maintenance of trophoblast progenitors. Rather than binding to trophoblast specific genes repressed in TSC, SFMBT2 is concentrated at chromocenters and regions rich in repetitive elements, specifically LINE sequences and major satellites, suggesting that it is involved in higher order organization of the trophoblast genome. It is also found enriched at a subset of ncRNAs. Comparison of ChIP-seq data sets for other chromatin proteins reveals several stereotypical distribution patterns, suggesting that SFMBT2 interacts with several different types of chromatin complexes specific to the trophoblast lineage.

scholarly journals Kondisi Populasi Dan Pola Penyebaran Anggrek Eria Spp. Di Resort Balik Bukit Taman Nasional Bukit Barisan Selatan

2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Kurnia Albarkati ◽  
Indriyanto Indriyanto ◽  
Yusnita Yusnita
Keyword(s):  
Natural Resources ◽  
Distribution Pattern ◽  
National Park ◽  
Distribution Patterns ◽  
Forest Area ◽  
Sampling Intensity ◽  
Different Types

Forest area of Balik Bukit Resort allocated as regions of natural preservation.  This area hasmany potential/natural resources that could be developed. This area is located at BukitBarisan Selatan National Park which have diverse types of flora, including various types oforchids. Approximately there were 154 typeof orchids in this area(Indonesia Institute ofSciences, 2011). This research aims were to know the population and distribution patterns ofEria spp orchids.This research was conducted in August 2015. The method used is the doubleplots systematically method with sampling intensity (SI) 0.1%. The size of each swath of 20 mx 20 m and the total area of the Balik Bukit Resort was 3,560 ha, so that the total number ofsample plots were 90 units. The observed variables were types of Orchid, Orchid populationsand patterns of spread of Eria spp. Based on the results of the study, there were 10 different types of Eria spp.. Eria iridifolia found most of 22.50 individuals/ha compared to other typesof orchids Eria. Followed by the type of E. erecta of 14.72 individuals/ha E. flavescens andtype of 8.33 individuals/ha. Whereas other types is E. discolor, E. javanica, E. junghunii, E.mucronata, E. oblitterata, E. retusa, E. robusta has a density of 1 — 4 individuals/ha.Distribution pattern of the orchids E. discolor, E. erecta, E. flavescens, E. iridifolia, E.javanica, E. mucronata, E. obletterata, and E. retusa enter into the category of a huddle.While the orchids E. junghunii belonging to the category of uniform and the orchids E.robusta into random categories.Keywords: distribution pattern, Eria spp. orchids, population

scholarly journals Distribution patterns of polyphenols and alkaloids in instant coffee, soft and energy drinks, and tea

2013 ◽  
Vol 31 (No. 5) ◽  
pp. 483-500 ◽  
Author(s):  
N. Manchón ◽  
L. Mateo-Vivaracho ◽  
D. Arrigo M ◽  
A. García-Lafuente ◽  
E. Guillamón ◽  
...  
Keyword(s):  
Black Tea ◽  
Distribution Patterns ◽  
Energy Drinks ◽  
Soft Drinks ◽  
Instant Coffee ◽  
Different Types ◽  
Low Levels ◽  
Using Data ◽  
Phytochemical Profiles

A previously developed method of HPLC-DAD-Fl has been used for the determination of phytochemical profiles in different types of drinks: instant coffee, soft drinks, energy drinks, and different types of tea (green, white, black, and red tea). Using data on the concentrations of 20 main phytochemicals (phenolic acids, flavan-3-ols, flavonols, flavones, and alkaloids) it was possible to identify most of the sample types. Chlorogenic and caffeic acids, and caffeine are the main target compounds in instant coffee; in soft and energy drinks, only caffeine was found. Tea has a more complex phytochemical composition. Unfermented tea is mainly composed of flavan-3-ols and alkaloids, with a high caffeine concentration. Black tea is composed of alkaloids and low levels of flavan-3-ols, which are affected by oxidative reactions during the fermentation. Flavonols are present in lower concentrations in all kinds of teas. The identified phytochemical distribution patterns were used to correctly differentiate instant coffee, soft drinks, energy drinks, unfermented tea and fermented tea (within fermented tea, black tea from red tea can also be differentiated).

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