نتایج جستجو برای: larval measures

تعداد نتایج: 379387  

2018
Josef Zapletal Madhav Erraguntla Zach N Adelman Kevin M Myles Mark A Lawley

The increasing range of Aedes aegypti, vector for Zika, dengue, chikungunya, and other viruses, has brought attention to the need to understand the population and transmission dynamics of this mosquito. It is well understood that environmental factors and breeding site characteristics play a role in organismal development and the potential to transmit pathogens. In this study, we observe the im...

Journal: :Journal of economic entomology 2001
L Mao R N Story A M Hammond J K Peterson D R Labonte

The effects of nitrogen fertilizer on sweet potato, Ipomoea batatas (L.) Poir., resistance to the sweetpotato weevil, Cylas formicarius elegantulus (Summers), was studied. Adult weevil feeding and oviposition preference, larval survival, and pupal weight were used as measures of sweet potato resistance. Sweet potato resin glycosides and caffeic acid concentrations in the periderm tissue of stor...

2015
Ori Segev Antonina Polevikove Lior Blank Daniel Goedbloed Eliane Küpfer Anna Gershberg Avi Koplovich Leon Blaustein Hector Escriva

Tail-tip clipping is a common technique for collecting tissue samples from amphibian larvae and adults. Surprisingly, studies of this invasive sampling procedure or of natural tail clipping--i.e., bites inflicted by predators including conspecifics--on the performance and fitness of aquatic larval stages of urodeles are scarce. We conducted two studies in which we assessed the effects of poster...

Journal: :شیلات 0
غلامرضا رفیعی استاد گروه مهندسی شیلات دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران کامران رضایی توابع فارغ التحصیل دورة دکتری رشتة مهندسی شیلات دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران مایک فرینسکو کارشناس ارشد آبزی پروری بخش توسعة علوم شیلات دانشکدة کشاورزی دانشگاه ایالتی کارولینای شمالی، امریکا هری دانیلز استاد بخش آبزی پروری آبزیان گرمابی دانشکدة زیست شناسی دانشگاه ایالتی کارولینای شمالی، امریکا محمد مهدی شعیری دانشگاه جامع علمی کاربردی سرپل زهاب، ایران

the main objective of the present study was investigation on influences of different brackish water sources on freshwater prawn larval quality and developmental indices. for this study, along a larval period, four brackish water treatments with 12 ppt salinity including diluted marine water, brackish water from marine crystalline salt, brackish water with compounds of new formula and brackish w...

Journal: :modares journal of medical sciences: pathobiology 2006
alireza bolandnazar mohammad said dayer ezzatdin javadian alieh moosavi ivanaki

aim: this study investigates the intraspecific competition, for food and density amongst larvae of anopheles stephensi (main malaria vector in south iran). material & methods: the effects of 4 selected food quantities (1x,2x,4x,6x) and 5 larval densities (0.1 to 3 larva/cm2) were tested individually or in combination on 7 biological indexes of the vector and the results were statistically ...

2012
Vanessa Machault Cécile Vignolles Frédéric Pagès Libasse Gadiaga Yves M. Tourre Abdoulaye Gaye Cheikh Sokhna Jean-François Trape Jean-Pierre Lacaux Christophe Rogier

INTRODUCTION High malaria transmission heterogeneity in an urban environment is basically due to the complex distribution of Anopheles larval habitats, sources of vectors. Understanding 1) the meteorological and ecological factors associated with differential larvae spatio-temporal distribution and 2) the vectors dynamic, both may lead to improving malaria control measures with remote sensing a...

Journal: :journal of arthropod-borne diseases 0
aioub sofizadeh infectious diseases research center, golestan university of medical sciences, gorgan, iran seyed hassan moosa-kazemi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran hossein dehghan department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran

background: there are unorganized, published documents about the ecology of mosquitoes (diptera: culicidae) in northeastern part of iran. the purpose of this study was to determine the distribution and characteristics of larval habitats of culicidae in kalaleh county. methods: larvae were collected using dipping method and adults by human landing catch technique during april–october, 2012. larv...

  Background: Maggot therapy has recently attracted considerable attention as an emerging debridement technique for wound healing. This study aimed to review the safety, effectiveness and economic evaluations of Maggot Debridement Therapy for wound healing.   Methods: To retrieve the relevant evidences, the Cochrane Library (until September 2014) was searched by appropriate ke...

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