scholarly journals Morphological and Morphometrical Study of the Stink Bug Mustha spinulosa (Lefebrve, 1831) (Hemiptera: Pentatomidae) from Erbil – Iraq

2021 ◽  
pp. 3467-3475
Author(s):  
Sarkaut Hussein Muhammed ◽  
Wand Khalis Ali
Keyword(s):  
Life Stages ◽  
Stink Bug ◽  
Body Parts ◽  
Scent Glands ◽  
Pale Pink ◽  
North Iraq ◽  
Morphometrical Study

     All life stages of the pentatomid stink bug Mustha spinulosa (Lefebrve, 1831) (Hemiptera: Pentatomidae) collected from several types of trees in Erbil Governorate, North Iraq, along with their morphometrical description, were illustrated. Eggs are barrel in shape, green in color when freshly laid, and usually deposited in clusters that contain 14 eggs each (sometimes 12). Nymphs complete their stage through 5 instars. Head, pronotum, and connexivum of the adults and instars are with pale pink and gray spines; female is slightly larger than male; female is 27.30 mm long and 12.80 mm wide, while male is 25.80 mm long and 11.98 mm wide. Labium proboscis is1.25 ± 0.01 cm long, with brown blackish color. A pair of scent glands are located on the underside of thorax between second and third leg base. All body parts, especially head, thorax, and abdomen are densely covered with setae.

Cutaneous Bacterial Communities of a Poisonous Salamander: a Perspective from Life Stages, Body Parts and Environmental Conditions

2016 ◽  
Vol 73 (2) ◽  
pp. 455-465 ◽  
Author(s):  
Eugenia Sanchez ◽  
Molly C. Bletz ◽  
Laura Duntsch ◽  
Sabin Bhuju ◽  
Robert Geffers ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Bacterial Communities ◽  
Life Stages ◽  
Body Parts

scholarly journals Jellyfish-Associated Microbiome in the Marine Environment: Exploring Its Biotechnological Potential

Marine Drugs ◽  
2019 ◽  
Vol 17 (2) ◽  
pp. 94 ◽  
Author(s):  
Tinkara Tinta ◽  
Tjaša Kogovšek ◽  
Katja Klun ◽  
Alenka Malej ◽  
Gerhard J. Herndl ◽  
...  
Keyword(s):  
Phylogenetic Diversity ◽  
Gelatinous Zooplankton ◽  
Future Research ◽  
Life Stages ◽  
Body Parts ◽  
Ambient Seawater ◽  
Research Directions ◽  
Biotechnological Potential ◽  
Future Research Directions ◽  
Basic Characteristics

Despite accumulating evidence of the importance of the jellyfish-associated microbiome to jellyfish, its potential relevance to blue biotechnology has only recently been recognized. In this review, we emphasize the biotechnological potential of host–microorganism systems and focus on gelatinous zooplankton as a host for the microbiome with biotechnological potential. The basic characteristics of jellyfish-associated microbial communities, the mechanisms underlying the jellyfish-microbe relationship, and the role/function of the jellyfish-associated microbiome and its biotechnological potential are reviewed. It appears that the jellyfish-associated microbiome is discrete from the microbial community in the ambient seawater, exhibiting a certain degree of specialization with some preferences for specific jellyfish taxa and for specific jellyfish populations, life stages, and body parts. In addition, different sampling approaches and methodologies to study the phylogenetic diversity of the jellyfish-associated microbiome are described and discussed. Finally, some general conclusions are drawn from the existing literature and future research directions are highlighted on the jellyfish-associated microbiome.

scholarly journals Chemical defense and tonic immobility in early life stages of the Harlequin cabbage bug, Murgantia histrionica (Heteroptera: Pentatomidae)

2021 ◽  
Author(s):  
Eric Guerra-Grenier ◽  
Rui Liu ◽  
John T. Arnason ◽  
Thomas N. Sherratt
Keyword(s):  
Chemical Defense ◽  
Development Time ◽  
Tonic Immobility ◽  
Life Stages ◽  
Stink Bug ◽  
Early Life Stages ◽  
Defensive Strategy ◽  
Murgantia Histrionica ◽  
Juvenile Stages ◽  
First Time

AbstractAntipredation strategies are important for the survival and fitness of animals, especially in more vulnerable life stages. In insects, eggs and early juvenile stages are often either immobile or unable to rapidly flee and hide when facing predators. Understanding what alternative antipredation strategies they use, but also how those change over development time, is required to fully appreciate how species have adapted to biotic threats. Murgantia histrionica is a stink bug, conspicuously colored from egg to adult, known to sequester defensive glucosinolates from its cruciferous hosts as adults. We sought to assess whether this chemical defense is also present in its eggs and early nymphal instars and quantified how it fluctuates among life stages. In parallel, we looked at an alternative antipredation strategy, described for the first time in this species: tonic immobility. Our results show that the eggs are significantly more chemically defended than the first two mobile life stages, but not than the third instar. Tonic immobility is also favored by hatchlings, but less so by subsequent instars. We argue the case that over development time, tonic immobility is a useful defensive strategy until adequate chemical protection is achieved over an extended feeding period.

Low Doses of a Neonicotinoid Stimulate Reproduction in a Beneficial Predatory Insect

2020 ◽  
Vol 113 (5) ◽  
pp. 2179-2186
Author(s):  
R R Rix ◽  
G C Cutler
Keyword(s):  
Life History Traits ◽  
Insect Pests ◽  
Low Doses ◽  
Life Stages ◽  
Stink Bug ◽  
Biological Control Agents ◽  
Two Generations ◽  
Predatory Insect ◽  
Major Reduction ◽  
Stimulation Of

Abstract Biological stimulation induced by low doses of toxicants or other stressors is known as hormesis. Hormetic stimulation of life history traits in insect pests can negatively impact agriculture, but stimulation of beneficial insects could be leveraged to enhance biological control agents. We examined whether low doses of imidacloprid could enhance oviposition, fecundity, fertility, and survival in the beneficial stink bug predator, Podisus maculiventris (Say) (Hemiptera: Pentatomidae), exposed at different life stages and across two generations. When treated as young adults, P. maculiventris fecundity was stimulated at 0.5 and 1.0 mg/liter imidacloprid (<2% of the field rate) without changes in time to oviposition, fertility, and survival. Nymphs exposed to 0.015 mg/liter imidacloprid (<1% of the field rate) also had stimulated reproduction without effects on oviposition, fertility, and survival, but treatment of nymphs at 0.15 and 1.5 mg/liter imidacloprid stimulated fecundity at the expense of fertility and survival. In another experiment we found reproductive stimulation can occur trans-generationally without major reduction in fertility or survival. Our results suggest biocontrol producers may be able to strategically apply low doses of stress to natural enemies during culturing without compromising fitness in subsequent generations.

Susceptibility of Halyomorpha halys (Hemiptera: Pentatomidae) eggs to different life stages of three generalist predators

2014 ◽  
Vol 147 (2) ◽  
pp. 222-226 ◽  
Author(s):  
P.K. Abram ◽  
J. Doyon ◽  
J. Brodeur ◽  
T. D. Gariépy ◽  
G. Boivin
Keyword(s):  
Invasive Pest ◽  
Generalist Predators ◽  
Halyomorpha Halys ◽  
Life Stages ◽  
Stink Bug ◽  
Predator Species ◽  
Predator Attack ◽  
Late Instar ◽  
Early Instar ◽  
Differential Ability

AbstractThe invasive stink bug Halyomorpha halys Stål (Hemiptera: Pentatomidae) has recently become established in Canada, but little information is available regarding the ability of natural enemies to attack this pest in its invaded range. We tested the capacity of several life stages of three generalist predators, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae), Coleomegilla maculata De Geer (Coleoptera: Coccinellidae), and Podisus maculiventris (Say) (Hemiptera: Pentatomidae), to attack H. halys eggs. The relative susceptibility of H. halys eggs to predator attack was compared to P. maculiventris eggs. We found evidence for differential ability to consume H. halys and P. maculiventris eggs both among predator species and within species among life stages. The most H. halys eggs were consumed by late-instar C. carnea, while fewest were consumed by second-instar and adult C. maculata, and second-instar C. carnea. The susceptibility of H. halys eggs to predators was similar to that of P. maculiventris eggs, with only early-instar P. maculiventris nymphs consuming significantly less H. halys eggs than P. maculiventris eggs. Our results provide a baseline for further testing of generalist predators against H. halys and illustrate the potential importance of considering the breadth of ontogeny across which candidates are able to attack the invasive pest.

scholarly journals Food, shelter or competitors? Overlapping of life stages and host plant selection in a Neotropical stink bug species

2017 ◽  
Vol 12 (1) ◽  
pp. 560-566 ◽  
Author(s):  
R. R. Moura ◽  
P. V. A. Ribeiro ◽  
B. G. Pereira ◽  
A. Quero ◽  
R. L. Carvalho ◽  
...  
Keyword(s):  
Host Plant ◽  
Host Plant Selection ◽  
Life Stages ◽  
Stink Bug ◽  
Plant Selection

Before I Die

GeroPsych ◽  
2018 ◽  
Vol 31 (3) ◽  
pp. 151-162 ◽  
Author(s):  
Qiao Chu ◽  
Daniel Grühn ◽  
Ashley M. Holland
Keyword(s):  
End Of Life ◽  
Psychosocial Development ◽  
Time Horizon ◽  
Development Theory ◽  
Life Stages ◽  
Socioemotional Selectivity Theory ◽  
Socioemotional Selectivity ◽  
Time Horizons

Abstract. We investigated the effects of time horizon and age on the socioemotional motives underlying individual’s bucket-list goals. Participants were randomly assigned to one of three time-horizon conditions to make a bucket list: (1) an open-ended time horizon (Study 1 & 2), (2) a 6-month horizon (i.e., “Imagine you have 6 months to live”; Study 1 & 2), and (3) a 1-week horizon (Study 2). Goal motives were coded based on socioemotional selectivity theory and psychosocial development theory. Results indicated that time horizon and age produced unique effects on bucket-list goal motives. Extending past findings on people’s motives considering the end of life, the findings suggest that different time horizons and life stages trigger different motives.

Body Parts Satisfaction Scale–Revised

2002 ◽  
Author(s):  
Trent A. Petrie ◽  
Margaret M. Tripp ◽  
Pejcharat Harvey
Keyword(s):  
Body Parts ◽  
Satisfaction Scale
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