scholarly journals Six-year removal of co-dominant grasses alleviated competitive pressure on subdominant grasses but dominant shrub removal had neutral effects in a subalpine ecosystem

2020 ◽  
Vol 23 ◽  
pp. e01167
Author(s):  
Wenjin Li ◽  
Johannes M.H. Knops ◽  
G. Kenny Png ◽  
Xi Yan ◽  
Huan Dong ◽  
...  
Keyword(s):  
Competitive Pressure ◽  
Dominant Grasses

Konkurrenz zwischen Stieleiche und Buche auf Lothar-Sturmflächen | Competition between pedunculate oak and European beech on Lothar windthrow areas

2009 ◽  
Vol 160 (5) ◽  
pp. 114-123 ◽  
Author(s):  
Daniel Otto ◽  
Sven Wagner ◽  
Peter Brang
Keyword(s):  
Large Scale ◽  
Early Stage ◽  
Tree Height ◽  
European Beech ◽  
Threshold Value ◽  
Test Methods ◽  
Permanent Plots ◽  
Pedunculate Oak ◽  
Competitive Pressure ◽  
Competition Index

The competitive pressure of naturally regenerated European beech (Fagus sylvatica) saplings on planted pedunculate oak (Quercus robur) was investigated on two 1.8 ha permanent plots near Habsburg and Murten (Switzerland). The plots were established with the aim to test methods of artificial oak regeneration after large-scale windthrow. On both plots, 80 oaks exposed to varying levels of competitive pressure from at most 10 neighbouring beech trees were selected. The height of each oak as well as stem and branch diameters were measured. The competitive pressure was assessed using Schütz's competition index, which is based on relative tree height, crown overlap and distance from competing neighbours. Oak trees growing without or with only slight competition from beech were equally tall, while oaks exposed to moderate to strong competition were smaller. A threshold value for the competition index was found above which oak height decreased strongly. The stem and branch diameters of the oaks started to decrease even if the competition from beech was slight, and decreased much further with more competition. The oak stems started to become more slender even with only slight competition from beech. On the moderately acid beech sites studied here, beech grow taller faster than oak. Thus where beech is competing with oak and the aim is to maintain the oak, competitive pressure on the oak must be reduced at an early stage. The degree of the intervention should, however, take the individual competitive interaction into account, with more intervention if the competition is strong.

scholarly journals Mobilterminierung im Wettbewerb

2009 ◽  
Vol 60 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Jörn Kruse
Keyword(s):  
Price Regulation ◽  
Competitive Market ◽  
Regulatory Agencies ◽  
Competitive Pressure ◽  
Ex Ante ◽  
Termination Problem ◽  
Mobile Termination

SummaryThe regulatory agencies found mobile termination to be monopolistic and adopted a policy of ex ante price regulation in recent years. This paper discusses two structural alternatives putting mobile termination under competitive pressure. The first one is the “receiving-party-pays-principle” where mobile termination is a part of the service bundle puchased by the mobile customer. The second is the proposal of a “mobile termination competition”. It turns mobile termination into a specific competitive market and looks like the optimal economic answer to the mobile termination problem. It works on the consumer as well as on the wholesale level.

SEASONAL VARIATIONS IN THE CHEMICAL COMPOSITION OF GRASSES HARVESTED FROM THE NATURAL PASTURE IN OGUN STATE SOUTH-WESTERN NIGERIA

2021 ◽  
Vol 20 (1) ◽  
pp. 65-77
Author(s):  
O. A. OKUKENU ◽  
B. T. AKINYEMI ◽  
P. A. DELE ◽  
A. A. OLAJIDE ◽  
A.O. JOLAOSHO ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Rainy Season ◽  
Crude Protein ◽  
P Value ◽  
Ogun State ◽  
Natural Pasture ◽  
Four Seasons ◽  
Acid Detergent Fibre ◽  
Different Seasons ◽  
Dominant Grasses

The research was carried was carried out to evaluate the chemical composition of the dominant grasses harvested from the natural pasture in selected villages in Ogun State, South-western Nigeria at different seasons. The study was carried out using a 4 × 6 factorial arrangement comprising four seasons (early rain, late rain, early dry and late dry) at six locations (Afami, Atokun, Ibooro, Ileniku, Ipaaya, and Okerori). Results showed that the crude protein (CP) content significantly (p<0.05) varied from 5.56 % for Okerori to 7.34 % for Ibooro and the grasses harvested at Afami had the highest (72.75 %) neutral detergent fibre (NDF) values with the least (68.75 %) value recorded for Okerori, while the acid detergent fibre (ADF) values ranged from 41.00 % for Atokun to 48.25 % for Okerori. Also, CP value as affected by the season ranged from 4.23 % for late rainy to 9.44 % for the early rainy season and NDF values from 67.33% for late dry to 72.33 % for late rainy season while the early dry season had the highest value (48.00 %) for ADF with the least value (40.33 %) was recorded for the early rainy season. The phosphorus (P) value was highest at Ipaaya (2.99 g/kg) with the least value observed at Okerori (1.62 g/kg). The value for calcium ranged from 2.55 g/kg at Afami to 6.59 g/kg at Okerori. The P value of grasses as affected by seasons ranged from 1.46 g/kg for early dry to 2.66 g/kg for early rainy seasons.

The effect of auditor narcissism on audit market competition

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hojat Mohammadi ◽  
Mahdi Salehi ◽  
Meysam Arabzadeh ◽  
Hassan Ghodrati
Keyword(s):  
Financial Markets ◽  
Significant Relationship ◽  
Design Methodology ◽  
Audit Quality ◽  
Stock Exchange ◽  
Market Competition ◽  
Competitive Pressure ◽  
Content Type ◽  
Listed Firms ◽  
Audit Market

Purpose This paper aims to assess auditor narcissism’s effect on audit market competition (auditor concentration, clients’ concentration and competitive pressure). Design/methodology/approach This paper’s method is descriptive-correlational based on published information from listed firms on the Tehran Stock Exchange from 2012 to 2018 using a sample of 188 firms (1,310 observations). The method used for hypothesis testing is linear regression using panel data. Findings The results show a negative and significant relationship between auditor narcissism and audit market competition and its indices, including auditor concentration, clients’ concentration and competitive pressure. Moreover, a positive and significant relationship was observed between audit quality and audit market competition and its indices, including auditor concentration, client concentration and competitive pressure. Originality/value To analyzes competition indices in the audit market (auditor concentration, clients’ concentration and competitive pressure). The variable is assessed once more using the exploratory factor analysis of the so-called three variables single variable, named audit market competition. So the central question of the study is investigated within a broader sense. Moreover, as the present study is carried out in the emergent financial markets with extremely competitive audit markets to figure out the effect of auditors’ intrinsic characteristics on such markets’ competitiveness, it can provide useful information in this field.

Financial Incentives and Competitive Pressure: The Case of the Hospital Industry

2021 ◽  
Author(s):  
Philippe Choné ◽  
Lionel Wilner
Keyword(s):  
Financial Incentives ◽  
Regulatory Reform ◽  
Hospital Industry ◽  
Competitive Pressure ◽  
Nonprofit Hospitals ◽  
For Profit ◽  
Industry Level ◽  
Market Shares

Abstract In the late 2000s, a regulatory reform dramatically strengthened the incentives of French nonprofit hospitals to attract patients. Exploiting exhaustive data for surgery treatments between 2005 and 2008, and modeling hospitals as supplying utility to patients, we show that increased competitive pressure on nonprofit hospitals caused them to perform more procedures, but did not inflate overall activity at the industry level. Although they have gained market shares over their for-profit counterparts, nonprofit hospitals have been significantly worse off after the reform. To adjust to stronger financial incentives, they incurred an additional effort (pecuniary and non-pecuniary costs) equivalent to about a quarter of their annual revenue.

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