Gas exchange patterns and water loss rates in the Table Mountain cockroach, Aptera fusca (Blattodea: Blaberidae)

Gas exchange patterns and water loss rates in the Table Mountain cockroach, Aptera fusca (Blattodea: Blaberidae).

The importance of metabolic rate and/or spiracle modulation for saving respiratory water is contentious. One major explanation for gas exchange pattern variation in terrestrial insects is to effect a respiratory water loss (RWL) saving. To test this, we measured the rates of CO2 and H2O release ( and , respectively) in a previously unstudied, mesic cockroach, Aptera fusca, and compared gas exch...

Performance of Goliath Cockroach Gel against German Cockroach (blattodea: Blattellidae) and a Mixed Population of American Cockroach and Australian Cockroach (blattodea: Blattidae) in the Field

Field studies were conducted to compare the performance of Goliath® Cockroach Gel (fipronil) and a spray treatment of Cislin Residual Insecticide (deltamethrin). These were carried out in Sydney, NSW, Australia against Blattella germanica (L), and Townsville, Queensland, against a mixed population of Periplaneta americana (L.) and Periplaneta australasiae (L). In both studies fipronil (0.05% AI...

Tachykinin stimulates α-amylase, protease and lipase activities in the midgut of the American cockroach, Periplaneta americana (Blattodea: Blattidae)

       در این تحقیق به بررسی اثر تاکیکینین بر روی فعالیت آلفا آمیلاز، پروتئاز و لیپاز در معده میانی سوسری امریکایی (L.) Periplaneta americana پرداخته شد. فعالیت ایمنوهیستوشیمیایی سلول‌های معده میانی (بخش های جلویی، میانی و عقبی) که تاکیکینین ترشح می‌کردند مورد تایید قرار گرفت. چهار هفته گرسنگی، تعداد سلول هایی را که عکس العمل ایمنوهیستوشیمیایی مقابل آنتی‌بادی تاکیکینین داشتند (Tachykinin-ir cel...

Nonlinearity In Exchange Rates and Forecasting

Diurnal Variation in Gas Exchange: The Balance between Carbon Fixation and Water Loss.

Stomatal control of transpiration is critical for maintaining important processes, such as plant water status, leaf temperature, as well as permitting sufficient CO2 diffusion into the leaf to maintain photosynthetic rates (A). Stomatal conductance often closely correlates with A and is thought to control the balance between water loss and carbon gain. It has been suggested that a mesophyll-dri...