Are the effects of hunger stage-specific? A case study in an aphidophagous ladybird beetle

2020 ◽  
Vol 111 (1) ◽  
pp. 66-72
Author(s):  
Priya Singh ◽  
Geetanjali Mishra ◽  
Omkar
Keyword(s):  
Food Availability ◽  
Food Limitation ◽  
Adult Emergence ◽  
Fundamental Factor ◽  
Food Regimes ◽  
Abundant Food ◽  
Propylea Dissecta ◽  
Specific Variation ◽  
Carry Over

AbstractFood availability is a fundamental factor determining an animal's potential fitness. Carry-over effects of food limitation from development to adulthood are known to influence reproduction, ageing, and tolerance to stress. We have examined the effect of stage-specific variation (before adult emergence or pre-emergence, post-emergence and post-mating) in food availability in Propylea dissecta (Mulsant). Larvae were reared separately on two different pre-emergence food regimes (abundant or restricted) until pupation. Newly emerged adults were further split into two groups and placed on abundant or restricted post-emergence regimes. After mating, females were split and reared on any one of two post-mating regimes. The results revealed that: (i) time to commence mating declined with increased food availability in pre- and post-emergence stages, (ii) mating duration increased with food availability post-emergence, (iii) highest reproduction output was observed in individuals who had abundant food pre- and post-emergence. However, food availability at the time of oviposition also had a strong influence on fecundity. Solo bouts of scarcity, regardless of which stage suffered them, were effectively managed in at least two of the three stages (pre-emergence, post-emergence, post-mating) had abundant food.

scholarly journals Limb regeneration modulates reproductive attributes in ladybirds: A case study in Propylea dissecta and Coccinella septempunctata

2020 ◽  
Author(s):  
Swati Saxena ◽  
Geetanjali Mishra ◽  
Omkar
Keyword(s):  
Adult Development ◽  
Limb Regeneration ◽  
Coccinella Septempunctata ◽  
Adult Emergence ◽  
Regeneration Ability ◽  
Body Parts ◽  
Egg Viability ◽  
Life Traits ◽  
Propylea Dissecta

ABSTRACTRegeneration is the capability to regrow or repair the lost or injured body parts. In holometabolous insects, the adult development undergoes through larval and pupal stages. Literature revealed that the limb regeneration has various impact on different life traits of organisms. In the present study, we investigated limb regeneration of two different sized ladybirds affect their life attributes. Fourth instar larvae of small ladybird Propylea dissecta and the large ladybird Coccinella septempunctata were taken from the laboratory stock and were given an ablation treatment, viz. forelegs of larvae were amputated at the base of the coxa. Amputated larvae were observed until the adult emergence. Emerged adults were grouped in different categories on the basis limb regeneration i.e. regenerated adults (incomplete regenerated in case of P. dissecta), unregenerated, and normal (control) adults. These adults were kept in different mating treatments. The unregenerated adults of both the ladybirds took more time to commence mating with shorter copulation duration and reduced fecundity and percent egg viability. Thus, it can be concluded that regeneration ability modulates the life attributes of the ladybirds irrespective of their body size.

The Carry-over Effect of Advertising

1965 ◽  
Vol 29 (2) ◽  
pp. 46-53 ◽  
Author(s):  
Donald S. Tull
Keyword(s):  
Carry Over ◽  
Carry Over Effect ◽  
Repeat Purchasing

Most advertisers believe there is a carry-over effect of advertising. What evidence is available, and what does it indicate about the relationships of sales to advertising? The author of this article presents a case study, and examines other evidence bearing on this question. He also constructs models involving repeat purchasing and impression cumulation as underlying reasons for a carry-over effect.

Including Sustainability Criteria in Architectural Completion: A Critical Case Study of Current Practices

2013 ◽  
Vol 649 ◽  
pp. 159-162 ◽  
Author(s):  
Kristina Kiesel ◽  
Ulrich Pont ◽  
Ardeshir Mahdavi
Keyword(s):  
Natural Ventilation ◽  
Energy Performance ◽  
Embodied Energy ◽  
Sufficient Information ◽  
Present Contribution ◽  
Fundamental Factor ◽  
Recycling Potential ◽  
Architectural Competitions ◽  
Critical Case Study

The Architectural competition announcements in Austria, as well as in most other European countries, regularly mention sustainability as a fundamental factor for decision-making. The consideration of energy performance, environmental performance of materials (embodied energy, reuse or recycling potential, toxicity), natural ventilation, and daylight availability are typically mentioned in the list of project requirements. In this context, the present contribution considers three actual architectural competition cases. Thereby, we investigated the kinds and depth of sustainability-related criteria as included in the competition announcements (e.g., hard versus soft requirements, qualitative versus quantitative benchmarks) . Moreover, we explored the level to which competition entries actually responded to the sustainability-related competition criteria. Thus, the submission materials (project narratives, posters and simple calculations if existing) available to the jury were analysed in detail. Toward this end, two approaches were selected: A qualitative approach focused on the use of certain terminology within the documentation of the projects. The second approach took certain numeric indicators into consideration such as heating demand and OI3 Index (sustainability). In those cases where the indicator values were not submitted by the participants, they were calculated by the authors based on available documentation. The study implies the need for a reconsideration of the process of formulating architectural competitions and evaluating the related submissions. It appears that currently the sustainability-related requirements in competition documentations do not lead to entries, which provide sufficient information for accountable jury evaluation. Rather, alternative and/or additional comprehensive indicators of sustainability and ecological performance must be included in a clear and systematic fashion in architectural competition narratives.

Reduction of Hemifacial Spasm and Dysarthria Following EMG Biofeedback

1984 ◽  
Vol 49 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Rick T. Rubow ◽  
John C. Rosenbek ◽  
Michael J. Collins ◽  
Gastone G. Celesia
Keyword(s):  
Hemifacial Spasm ◽  
Relaxation Training ◽  
Speech Therapy ◽  
Emg Biofeedback ◽  
Feedback Training ◽  
Facial Spasm ◽  
History Of ◽  
Carry Over

In this case study, a geriatric patient who had an 18-year history of hemifacial spasm was given EMG-biofeedback-assisted relaxation training. No formal speech therapy was provided. Our results confirmed two hypotheses: (a) The patient would learn to reduce frontalis EMG and facial spasm with and then without biofeedback, and (b) as a result, speech would be markedly improved. At both the 1-month and 15-month follow-up the patient retained the ability to relax his facial muscles with similar carry-over to speech. Possible neurophysiologic mechanisms of action mediating the feedback training are discussed.

scholarly journals Sustaining Local Communities through Cultural Industries Based on Local Wisdom in Tigawasa Village

2020 ◽  
Vol 13 (6) ◽  
pp. 139
Author(s):  
Agung Parameswara ◽  
Athina Wulandari
Keyword(s):  
Cultural Values ◽  
Local Communities ◽  
Added Value ◽  
Cultural Industries ◽  
Case Study Method ◽  
Economic Activities ◽  
Fundamental Factor ◽  
The Subject ◽  
Depth Interviews

Globalization with the presence of information technology and development is a challenge for the sustainability of local communities that identic with tradition and culture. The value of local wisdom is an identity that is a strength because there is no in other places. This study wants to prove that local wisdom can provide added value and could even be used as a fundamental factor for sustainable development. The subject of study is the cultural industries. It is said, cultural industries that have cultural values are an important component and it contains the strength of narration of the output. The investigation is carried out by exploring local wisdom-based economic activities, access to labor, and social sustainability to show that the value of local wisdom as an identity can realize a sustainable economy in a rural area. In-depth interviews and observations with an ethnography approach to the case study method conducted in Tigawasa Village, Buleleng. This village is Bali Aga Village, home of Bali Mula or Bali’s original people, the earliest inhabitants of the island, which have local wisdom of bamboo.

scholarly journals Malays, China and Indian Ethnicities: A Case Study of Art and Ethnography Content Analysis and Multiculturalism on Upin-Ipin Animation

2013 ◽  
Vol 2 (1) ◽  
pp. 629
Author(s):  
Wenny Maya Arlena ◽  
Ni Gusti Ayu Ketut Kurniasari
Keyword(s):  
Content Analysis ◽  
Human Life ◽  
Intrinsic Property ◽  
Values Education ◽  
Good Relationship ◽  
Fundamental Factor ◽  
Animated Film ◽  
Different Cultures ◽  
Islamic Values

This study aims to describe the ethnic group or tribe is a group of people whose members identify themselves with one another, usually based on lineage are considered the same as culture, language, religion traits, behaviors, or biological. Ethnicity is a fundamental factor in human life, interactions and intrinsic property of a group. The method of research used content analysis approaches and ethnographic art. The results showed determination by mixing or races as “Peranakan”: for a mixture of Malay race with China, people who are determined according to their religion, for Malays in Malaysia it meant that the Muslim bumiputera, “the Mestis” for Hispanic mix by bumiputera. Upin Ipin-released on September 14, 2010 in Malaysia and produced by Les’ Copaque. The results of this study show Upin-Ipin filled with simplicity in bringing Islamic values, education, manners, and respect among fellow was meant for all people of good Malaysian nation or religion. Good relations between different cultures (Malay, Chinese, Indian) were described in this animated film. Upin-Ipin animated movie brings the perfect image and message, ie, with different cultures can create a good relationship with the harmony of differences in unity and simplicity.

scholarly journals Experimental food supplementation increases reproductive effort in an antbird in subtropical Brazilian Atlantic Forest fragments

2014 ◽  
Author(s):  
James J Roper ◽  
André M. X. Lima ◽  
Angélica M. K. Uejima
Keyword(s):  
Food Availability ◽  
Reproductive Effort ◽  
Fragment Size ◽  
Food Limitation ◽  
Survival Rates ◽  
Food Supplementation ◽  
Fragmented Landscape ◽  
Forest Fragments ◽  
Daily Nest Survival ◽  
Nesting Patterns

Food limitation may interact with nest predation and influence nesting patterns, such as breeding season length and renesting intervals. If so, reproductive effort should change with food availability. Thus, when food is limited, birds should have fewer attempts and shorter seasons than when food is not limiting. Here we experimentally test that increased food availability results in increased reproductive effort in a fragmented landscape in the Variable Antshrike (Thamnophilus caerulescens) in southern Brazil. We followed nesting pairs in five natural fragments (4, 23, 24, 112, 214 ha) in which food was supplemented for half of those pairs, beginning with the first nest. Nest success in the largest (214 ha) fragment was 59%, compared to 5% in the 112 ha fragment and no nest was successful in the smallest (24 ha) fragment. Birds were seen, but evidence of nesting was never found in the two smallest fragments. Pairs with supplemented food were more likely to increase clutch size from two to three eggs, tended to renest sooner (20 d on average) than control pairs. Also, fragment size interacted with breeding and pairs in the largest fragment had greater daily nest survival rates, and so nests tended to last longer, and so these pairs had fewer nesting attempts than those in the 112 ha fragment while more than those in the smallest fragment with nesting (24 ha). Clearly, pairs increased their reproductive effort when food was supplemented in comparison to control pairs and fragment size seems to influence both predation risk and food abundance.

scholarly journals Can Trait-Based Schemes Be Used to Select Species in Urban Forestry?

2021 ◽  
Vol 3 ◽  
Author(s):  
Harry Watkins ◽  
Andrew Hirons ◽  
Henrik Sjöman ◽  
Ross Cameron ◽  
James D. Hitchmough
Keyword(s):  
Tree Species ◽  
Urban Forestry ◽  
Species Selection ◽  
Functional Ecology ◽  
Northern Europe ◽  
Ecological Traits ◽  
Trade Off ◽  
Specific Variation ◽  
The Right

Urban forests in northern Europe are threatened by climate change and biosecurity risks, and in response, city planners are urged to select a wider portfolio of tree species to mitigate the risks of species die-off. However, selecting the right species is a challenge, as most guidance available to specifiers focuses on ecosystem service delivery rather than the information most critical to tree establishment: the ability of a species to tolerate the stresses found in a given place. In this paper, we investigate the potential of using ecological techniques to describe ecological traits at the level of species selection, and the potential of functional ecology theories to identify species that are not widely discussed or specified at present but might be suitable. We collected trait data on 167 tree species across 37 genera, including 38 species within a case study genus, Magnolia L., and tested four theories that posit ways in which traits trade off against each other in predictable ways. We found that at this scale, most species recommended for urban forestry tend to be ordinated along an axis of variation describing pace of life and stress tolerance, and that most Magnolia species are described as being fast-growing rather than stress-tolerant, although there is a degree of inter-specific variation. Further, we found that only one theory offers a succinct and reliable way of describing physiological strategies but translating ecological theory into a form appropriate for urban forestry will require further work.

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