The enemy release and EICA hypothesis revisited: incorporating the fundamental difference between specialist and generalist herbivores

2005 ◽  
Vol 8 (7) ◽  
pp. 704-714 ◽  
Author(s):  
J. Joshi ◽  
K. Vrieling
Keyword(s):  
Fundamental Difference ◽  
Enemy Release ◽  
Generalist Herbivores ◽  
Eica Hypothesis

scholarly journals Rapid adaptation of insect herbivores to an invasive plant

2006 ◽  
Vol 273 (1602) ◽  
pp. 2763-2769 ◽  
Author(s):  
Evan Siemann ◽  
William E Rogers ◽  
Saara J Dewalt
Keyword(s):  
Invasive Plant ◽  
Enemy Release ◽  
Insect Herbivores ◽  
Sapium Sebiferum ◽  
Chinese Tallow Tree ◽  
Introduced Range ◽  
Tallow Tree ◽  
Eica Hypothesis ◽  
Genetic Responses ◽  
Over Time

Introduced plant success often is attributed to release from natural enemies in their new ranges. However, herbivores may accumulate over time and reduce invasiveness but evidence for this process to date is weak. We report here that enemy release is indeed limited to the early stages of introduction of the Chinese tallow tree ( Sapium sebiferum ). In bioassays and gardens along a geographical gradient of time since tallow tree introduction, herbivory was highest and tree performance was poorest where tallow tree has been present longer (i.e. introduced earlier). Additionally, Asian ecotypes (grown from seeds collected in Asia) had lower survival than North American ecotypes (seeds collected in North America), which is consistent with genetic responses to low herbivory in the introduced range (EICA Hypothesis). Release from insect herbivores appears to contribute to early success of the tallow tree, but accumulation of insect herbivores has apparently reduced this benefit over time.

scholarly journals No improved resistance against generalist herbivores found for invasive genotypes: a case study of Senecio vulgaris (Asteraceae) and a generalist snail (Achatina fulica)

2016 ◽  
Author(s):  
Viet Thang Nguyen ◽  
Noel Ndihokubwayo ◽  
Dandan Cheng
Keyword(s):  
Invasive Plants ◽  
Natural Enemies ◽  
Land Snails ◽  
Enemy Release ◽  
Achatina Fulica ◽  
Senecio Vulgaris ◽  
Generalist Herbivores ◽  
Introduced Range ◽  
The Difference

Invasive plants escape from some natural enemies as predictions of Enemy Release Hypothesis (ERH). However, in fact they still have to face the pressure of generalist herbivores in introduced ranges resulting in the maintenance or enhancing of resistance ability to generalist herbivores. In this study, we carried out a general feeding bioassay in a laboratory with leaves of Senecio vulgaris to test the difference in resistance between ranges. White jade land snails (WJLD, Achatina fulica) were fed with the leaves of Pakchoi (Brassica chinensis), Lettuce (Lactuca sativa), native and invasive plants of S. vulgaris. The feeding experiment with S. vulgaris leaves was carried out in two waves. We found that both native and invasive S. vulgaris plant were resistant again to WJLD compared to Pakchoi and Lettuce. However, there were no significant differences between native and invasive plants of S. vulgaris in relation to the resistance against WJLD. The results prove the maintenance of chemical defense against generalist herbivores in invasive plants in introduced range. The success of S. vulgaris to invader China could not be explained by releasing from natural enemies but possessing of defense ability against herbivores before it introduced to China.

scholarly journals No improved resistance against generalist herbivores found for invasive genotypes: a case study of Senecio vulgaris (Asteraceae) and a generalist snail (Achatina fulica)

2016 ◽  
Author(s):  
Viet Thang Nguyen ◽  
Noel Ndihokubwayo ◽  
Dandan Cheng
Keyword(s):  
Invasive Plants ◽  
Natural Enemies ◽  
Land Snails ◽  
Enemy Release ◽  
Achatina Fulica ◽  
Senecio Vulgaris ◽  
Generalist Herbivores ◽  
Introduced Range ◽  
The Difference

Invasive plants escape from some natural enemies as predictions of Enemy Release Hypothesis (ERH). However, in fact they still have to face the pressure of generalist herbivores in introduced ranges resulting in the maintenance or enhancing of resistance ability to generalist herbivores. In this study, we carried out a general feeding bioassay in a laboratory with leaves of Senecio vulgaris to test the difference in resistance between ranges. White jade land snails (WJLD, Achatina fulica) were fed with the leaves of Pakchoi (Brassica chinensis), Lettuce (Lactuca sativa), native and invasive plants of S. vulgaris. The feeding experiment with S. vulgaris leaves was carried out in two waves. We found that both native and invasive S. vulgaris plant were resistant again to WJLD compared to Pakchoi and Lettuce. However, there were no significant differences between native and invasive plants of S. vulgaris in relation to the resistance against WJLD. The results prove the maintenance of chemical defense against generalist herbivores in invasive plants in introduced range. The success of S. vulgaris to invader China could not be explained by releasing from natural enemies but possessing of defense ability against herbivores before it introduced to China.

Control of Impatiens glandulifera (Balsaminaceae) by Antagonists in its Invaded Range

2008 ◽  
Vol 1 (4) ◽  
pp. 352-358 ◽  
Author(s):  
Karin Burkhart ◽  
Wolfgang Nentwig
Keyword(s):  
Pathogenic Fungi ◽  
Enemy Release ◽  
Strong Impact ◽  
Limited Information ◽  
Impatiens Glandulifera ◽  
Specialist Herbivore ◽  
Generalist Herbivores ◽  
Specialist Herbivores ◽  
Himalayan Balsam ◽  
Growing Conditions

AbstractField and garden experiments were performed to investigate if pathogens, generalist herbivores, or a specialist herbivore (the tortricid moth Pristerognatha fuligana) have the potential to control the invasive Himalayan balsam. Impacts of generalist herbivores and pathogenic fungi were excluded by using thiacloprid and trifloxystrobin. Results show no effect of any antagonist in the field experiment, though we found a modest impact of the combined influence of generalist herbivores and pathogenic fungi in the garden experiment, i.e., under suboptimal growing conditions. Limited information from the native area (the Himalayas) suggests a strong impact of specialist herbivores, thus confirming the enemy release hypothesis. We predict that impact studies of native specialized herbivores will clearly indicate antagonists from the native area with a strong impact on Himalayan balsam in its invaded area.

Is Style of Reasoning a Fundamental Difference Between the Common Law and the Civil Law?

2017 ◽  
Vol 17 (2) ◽  
pp. 238-290
Author(s):  
Colm Peter McGrath ◽  
◽  
Helmut Koziol ◽  
Keyword(s):  
Common Law ◽  
Civil Law ◽  
Fundamental Difference ◽  
The Common

Yu.F. Samarin’s Model of the National State: Between Archaic and Modern

2019 ◽  
Vol 54 ◽  
pp. 149-155
Author(s):  
Alexey B. Panchenko
Keyword(s):  
Rural Community ◽  
Fundamental Difference ◽  
The State ◽  
Basic Unit ◽  
National State ◽  
Basic Model ◽  
The Face ◽  
Identical Position ◽  
Ethnocultural Community ◽  
Communicative Space

Yu. F. Samarin’s works are traditionally viewed through the prism of his affiliation with Slavophilism. His view of the state is opposed to the idea of the complex empire based on unequal interaction of the central power with the elite of national districts. At the same time it was important for Samarin to see the nation not as an ethnocultural community, but as classless community of equal citizens, who were in identical position in the face of the emperor. Samarin’s attitude to religion and nationality had pragmatic character and were understood as means for the creation of the uniform communicative space inside the state. This position for the most part conformed with the framework of the national state basic model, however there still existed one fundamental difference. Samarin considered not an individual, but the rural community that owned the land, to be the basic unit of the national state. As the result the model of national state was viewed as the synthesis of modernistic (classlessness, pragmatism, equality) and archaic (communality) features.

TRANSFORMASI DIALEKTIKA SEGITIGA: POSISI DAN PERAN DALAM KAJIAN INTEGRASI AGAMA, SAINS, DAN TEKNOLOGI

1970 ◽  
Vol 19 (2) ◽  
pp. 314-333
Author(s):  
Sarno Hanipudin
Keyword(s):  
Research Methods ◽  
Science And Religion ◽  
Fundamental Difference ◽  
Material Objects ◽  
Religion And Science ◽  
Empirically Supported

This paper is intended to describe how the integration of religion and science is done through the practice of PAI learning. This was done because there is a strong presumption in the wider community who say that religion and science are the two entities that can not be met. Both have their respective territories, separated from each other, in terms of formal-material objects, research methods, criteria of truth, the role played by scientists. There is also a view that science and religion stand at their respective position, because science rely on empirically supported data to ascertain what is real and what is not, contrary religion ready to accept the supernatural and certainly not only be based on tangible variables of faith and the belief that religion and science must coexist independently of each other, because even though there are similarities in their mission, the fundamental difference between the two present a conflict that will resonate on each core. Tulisan ini ditujukan untuk mendeskripsikan bagaimana integrasi agama dan sains dilakukan melalui praktik pembelajaran PAI. Hal itu dilakukan karena ada anggapan yang kuat dalam masyarakat luas yang mengatakan bahwa agama dan ilmu adalah dua entitas yang tidak dapat dipertemukan. Keduanya mempunyai wilayah masing-masing, terpisah antara satu dan lainnya, baik dari segi objek formalmaterial, metode penelitian, kriteria kebenaran, peran yang dimainkan oleh ilmuwan. Ada juga yang memandang bahwa sains dan agama berdiri pada posisinya masingmasing, karena bidang ilmu mengandalkan data yang didukung secara empiris untuk memastikan apa yang nyata dan apa yang tidak, agama sebaliknya siap menerima yang gaib dan tidak pasti hanya didasarkan pada variabel berwujud dari iman dan kepercayaan bahwa agama dan sains harus hidup berdampingan independen satu sama lain, sebab meskipun ada kesamaan dalam misi mereka, perbedaan mendasar antarakeduanya menyajikan sebuah konflik yang akan beresonansi pada inti masingmasing.

Analisis Kontrak Ijarah

2018 ◽  
Vol 4 (2) ◽  
pp. 201-213
Author(s):  
Puji Kurniawan
Keyword(s):  
Financial Institutions ◽  
Profit Sharing ◽  
Fundamental Difference ◽  
Human Needs ◽  
The People ◽  
Islamic Financial Institutions

Humans are social creatures who need each other to socialize or to fulfill their needs, such as primary, secondary and tertiary needs. In this life there are 2 (two) groups of people, namely groups of people who are overfunded and those who are underfunded. Therefore, banks and non-bank financial institutions have emerged as intermediaries between the 2 (two) groups of the people so that the balance can occur in meeting the needs of each life. In Indonesia, there are many conventional and sharia bank and non-bank financial institutions that provide financing services to meet human needs. The fundamental difference between conventional and Islamic financial institutions is the use of the interest system which is usury in conventional financial institutions and the use of profit sharing systems in Islamic financial institutions.

In our society, the proportion of youth is higher than any other society. They are important in this regard. But the real question is whether his views, trends and likes and dislikes are different from other generations of society in political terms. What

Think India ◽  
2019 ◽  
Vol 22 (3) ◽  
pp. 680-686
Author(s):  
Azad Pratap Singh
Keyword(s):  
The Elderly ◽  
Fundamental Difference ◽  
The West ◽  
Green Party ◽  
The Real ◽  
The Third ◽  
English Speaking ◽  
Education And Employment ◽  
Political Understanding ◽  
Separate Class

In our society, the proportion of youth is higher than any other society. They are important in this regard. But the real question is whether his views, trends and likes and dislikes are different from other generations of society in political terms. What is the reason for the tendency to see youth as a separate class. That we borrow the principles of politics from the West, where the distinction of generations is more important factor in politics than the distinction of community or class. At one time, parties like the Labor Party and the Green Party have been standing mainly on the vote of the youth for some time. The second reason is that the image of the youth is based on the English-speaking youths living somewhere in the metros. We often consider him to be a symbol of youth. While in reality they are a very small part of our youth. And the third reason is that the part of change, revolution and the politics of change that had set the hopes of the youth are still there in our political understanding. The fact is that the youth class is not very different from the elderly or any other generation in terms of participation in politics, if different then it means that its participation is less than the other class because it is more concerned about education and employment. There is no fundamental difference between the vote of the youth and other generations in terms of voting or political choice. If there is a difference, then only in the sense that the parties who have come in the last 25-30 years have heard more about the youth, hence their choice is more. Older parties usually get little support from the youth. However, it is not related to its youth, because the information about that party is limited to certain people.

RETHINKING MODEL BISNIS PEMERINTAH DESA: KASUS PADA BADAN USAHA MILIK DESA DI KABUPATEN BANYUMAS, INDONESIA

2018 ◽  
Vol 16 (1) ◽  
pp. 93-102
Author(s):  
Muhammad Husnul Maab ◽  
Shadu S. Wijaya ◽  
Zaula Rizqi Atika ◽  
Denok Kurniasih
Keyword(s):  
Public Administration ◽  
Rural Community ◽  
Fundamental Difference ◽  
Public Enterprise ◽  
Business Sector ◽  
Social Business ◽  
The Public ◽  
Sector Model ◽  
The Government ◽  
The Right

The emergence of rural community owned enterprises khown as BUMDes has been in line with evolution of public administration pradigm, from OPA to NPM who implemented in local government. Local potency development becomes a substantial aspect to improving local competitiveness. Hence, BUMDes formation is one of the models financial capacity to develop local potency in rural level. The aim is comparing traditional and public enterprise based management in local potency management. The results show that there is a fundamental difference in the management of local potency in rural level. Consequently, We argue that has been on the right track, the evolution of the government business model to the public enterprise for the management of local potency in rural level. Evolution of BUMDes is from a bureaucratic to the business sector model, but as a social business not profit maximizing businesses.

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