scholarly journals A comprehensive review and call for studies on firefly larvae

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12121
Author(s):  
William B. Riley ◽  
Simone Policena Rosa ◽  
Luiz Felipe Lima da Silveira
Keyword(s):  
Life Cycle ◽  
Applied Research ◽  
The Other ◽  
Immature Stages ◽  
Comprehensive Understanding ◽  
Comprehensive Review ◽  
Larval Stages ◽  
Key Issues ◽  
Basic And Applied Research ◽  
And Behavior

Background Fireflies (Coleoptera: Lampyridae) are commonly recognized by adult traits, such as a soft exoskeleton, lanterns and associated glow and flash patterns, but their larval stage is far less appreciated. However, fireflies spend most of their lives as larvae, and adults of most species rely solely on resources previously obtained. Therefore, studying the immature stages is imperative towards a comprehensive understanding of fireflies. This paper reviews and indicates key gaps in the biology of firefly larvae based on available literature. Methodology We reviewed the literature on firefly larvae to identify key issues and important taxonomic, geographic, and subject biases and gaps. Results We found 376 papers that included information on firefly larvae. Only 139 species in 47 genera across eight of eleven lampyrid subfamilies have been studied during larval stages. These numbers reveal a staggering gap, since 94% of species and over half of the genera of fireflies were never studied in a crucial stage of their life cycle. Most studies on firefly larvae focus on two subfamilies (Luciolinae and Lampyrinae) in four zoogeographic regions (Sino-Japanese, Oriental, Nearctic, and Palearctic), whereas the other subfamilies and regions remain largely unstudied. These studies mainly dealt with morphology and behavior, other subjects remaining greatly understudied by comparison, including habitats, life cycle, physiology and interactions. Conclusions Together, these literature biases and gaps highlight how little is known about firefly larvae, and warmly invite basic and applied research, in the field and in the lab, to overcome these limitations and improve our understanding of firefly biology to better preserve them.

scholarly journals Overview of Bioplastic Introduction and Its Applications in Product Packaging

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1423
Author(s):  
Nor Izaida Ibrahim ◽  
Farah Syazwani Shahar ◽  
Mohamed Thariq Hameed Sultan ◽  
Ain Umaira Md Shah ◽  
Syafiqah Nur Azrie Safri ◽  
...  
Keyword(s):  
Applied Research ◽  
Review Paper ◽  
Environmental Problem ◽  
Environmental Problems ◽  
Biodegradable Materials ◽  
Product Packaging ◽  
Comprehensive Review ◽  
Food And Beverage ◽  
Packaging Industry ◽  
Basic And Applied Research

Each year, more than 330 million tons of plastic are produced worldwide. The main consumers of plastics are the packaging (40%), building (20%) and automotive (8%) industries, as well as for the manufacture of household appliances. The vast majority of industrial plastics are not biodegradable and, therefore, create environmental problems due to the increase in the amount of solid waste. Studies have been conducted to produce biodegradable materials such as bioplastics to overcome this environmental problem. Bioplastics are defined as materials that are bio-based, biodegradable, or both; they can provide excellent biodegradability and can be used to help alleviate environmental problems. Therefore, this article presents an overview of the introduction of bioplastic materials and classifications, and a comprehensive review of their drawbacks and areas of importance, including basic and applied research, as well as biopolymer mixtures and biocomposites developed in the last decade. At the same time, this article provides insights into the development of bioplastics research to meet the needs of many industries, especially in the packaging industry in Malaysia. This review paper also focuses generally on bioplastic packaging applications such as food and beverage, healthcare, cosmetics, etc.

scholarly journals The Curvature Effect

2020 ◽  
Author(s):  
Guido Corradi ◽  
Enric Munar
Keyword(s):  
20Th Century ◽  
Interior Design ◽  
Experimental Research ◽  
Applied Research ◽  
The Other ◽  
Curvature Effect ◽  
Comprehensive Understanding ◽  
Unified Framework ◽  
The Past ◽  
Experimental Aesthetics

Preference for curved over sharp-angled contours is a well-known effect. However, it was quite unexplored during the 20th century and only a few sporadic studies dealt with it. Nevertheless, there has been renewed interest in this topic over the past two decades. This interest has come from two perspectives, one related to the current experimental aesthetics and the other from different applied approaches: marketing, packaging, interior design, and security perception, among others. Quite a few studies have demonstrated the effect with different stimuli, conditions, and participants. However, a comprehensive understanding of this effect is still lacking. We present the salient issues of the current studies in order to provide a more complete picture of this phenomenon. The applied research line is a promising field to combine with research from experimental aesthetics. Finally, we indicate a few challenges that experimental research should address to achieve a unified framework for a better understanding of the curvature effect.

scholarly journals Immature Stages and Life Cycle of the Wasp Moth,Cosmosoma auge(Lepidoptera: Erebidae: Arctiinae) under Laboratory Conditions

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Gunnary León-Finalé ◽  
Alejandro Barro
Keyword(s):  
Life Cycle ◽  
Host Plant ◽  
Pupal Stage ◽  
Immature Stages ◽  
New Host ◽  
Mikania Micrantha ◽  
Larval Stages ◽  
Arctiid Moth ◽  
First Time ◽  
Cuban Population

Cosmosoma auge(Linnaeus 1767) (Lepidoptera: Erebidae) is a Neotropical arctiid moth common in Cuban mountainous areas; however, its life cycle remains unknown. In this work,C. augelife cycle is described for the first time; also, immature stages are described using a Cuban population. Larvae were obtained from gravid wild females caught in Viñales National Park and were fed with fresh leaves of its host plant, the climbing hempweedMikania micranthaKunth (Asterales: Asteraceae), which is a new host plant record. Eggs are hemispherical and hatching occurred five days after laying. Larval period had six instars and lasted between 20 and 22 days. First and last larval stages are easily distinguishable from others. First stage has body covered by chalazae and last stage has body covered by verrucae as other stages but has a tuft on each side of A1 and A7. Eggs and larvae features agree with Arctiinae pattern. Pupal stage lasted eight days, and, in general, females emerge before males as a result of pupal stage duration differences between sexes.

scholarly journals The Curvature Effect

2020 ◽  
Author(s):  
Guido Corradi ◽  
Enric Munar
Keyword(s):  
20Th Century ◽  
Interior Design ◽  
Experimental Research ◽  
Applied Research ◽  
The Other ◽  
Curvature Effect ◽  
Comprehensive Understanding ◽  
Unified Framework ◽  
The Past ◽  
Experimental Aesthetics

Preference for curved over sharp-angled contours is a well-known effect. However, it was quite unexplored during the 20th century and only a few sporadic studies dealt with it. Nevertheless, there has been renewed interest in this topic over the past two decades. This interest has come from two perspectives, one related to the current experimental aesthetics and the other from different applied approaches: marketing, packaging, interior design, and security perception, among others. Quite a few studies have demonstrated the effect with different stimuli, conditions, and participants. However, a comprehensive understanding of this effect is still lacking. We present the salient issues of the current studies in order to provide a more complete picture of this phenomenon. The applied research line is a promising field to combine with research from experimental aesthetics. Finally, we indicate a few challenges that experimental research should address to achieve a unified framework for a better understanding of the curvature effect.

Coolness: An Empirical Investigation

2012 ◽  
Vol 33 (3) ◽  
pp. 175-185 ◽  
Author(s):  
Ilan Dar-Nimrod ◽  
I. G. Hansen ◽  
T. Proulx ◽  
D. R. Lehman ◽  
B. P. Chapman ◽  
...  
Keyword(s):  
Social Desirability ◽  
Applied Research ◽  
Empirical Investigation ◽  
The Other ◽  
Controlled Study ◽  
Factor Analyses ◽  
Quantitative Investigation ◽  
North Americans ◽  
Basic And Applied Research ◽  
The Relationship

Some people are routinely described as “cool,” but it is unknown whether this descriptor conveys trait-like information beyond mere likability or popularity. This is the first systematic quantitative investigation of coolness from a trait perspective. Three studies of North Americans (N = 918) converged to identify personality markers for coolness. Study 1 participants described coolness largely by referring to socially desirable attributes (e.g., social, popular, talented). Study 2 provided further evidence of the relationship between coolness and social desirability, yet also identified systematic discrepancies between valuations of coolness and social desirability. Factor analyses (Studies 2 and 3) indicated that coolness was primarily conceptualized in terms of active, status-promoting, socially desirable characteristics (“Cachet coolness”), though a second orthogonal factor (“Contrarian coolness”) portrayed cool as rebellious, rough, and emotionally controlled. Study 3, which examined peer valuations of coolness, showed considerable overlap with abstract evaluations of the construct. We conclude that coolness is reducible to two conceptually coherent and distinct personality orientations: one outward focused and attuned to external valuations, the other more independent, rebellious, and countercultural. These results have implications for both basic and applied research and theory in personality and social psychology.

Problems of species and the features of geographical distribution in colonial volvocine algae (Chlorophyta)

2020 ◽  
Vol 54 (2) ◽  
pp. 299-311
Author(s):  
A. G. Desnitskiy
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
World Literature ◽  
The Other ◽  
Disjunct Distribution ◽  
Published Data ◽  
Species Problem ◽  
Comprehensive Review ◽  
Volvocine Algae ◽  
Cryptic Taxa

More than ten new species of colonial volvocine algae were described in world literature during recent years. In present review, the published data on taxonomy, geographical distribution and the species problem in this group of algae, mainly from the genera Gonium, Pandorina, Eudorina, and Volvox, are critically discussed. There are both cosmopolitan volvocalean species and species with local or disjunct distribution. On the other hand, the description of new cryptic taxa in some genera of the colonial family Volvocaceae, such as Pandorina and Volvox, complicates the preparation of a comprehensive review on their geography.

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