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Publisher: Cambridge University Press   (Total: 365 journals)

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Showing 1 - 200 of 365 Journals sorted alphabetically
Acta Neuropsychiatrica     Hybrid Journal   (Followers: 4, SJR: 0.421, h-index: 23)
Acta Numerica     Hybrid Journal   (Followers: 3, SJR: 8.044, h-index: 35)
Advances in Animal Biosciences     Full-text available via subscription   (Followers: 8)
Advances in Applied Mathematics and Mechanics     Full-text available via subscription   (SJR: 0.74, h-index: 14)
Africa     Hybrid Journal   (Followers: 19, SJR: 1.02, h-index: 28)
African Studies Review     Full-text available via subscription   (Followers: 18, SJR: 0.532, h-index: 13)
Ageing & Society     Hybrid Journal   (Followers: 37, SJR: 0.87, h-index: 55)
Agricultural and Resource Economics Review     Open Access   (Followers: 5, SJR: 0.326, h-index: 19)
AI EDAM     Hybrid Journal   (SJR: 0.438, h-index: 40)
AJS Review     Full-text available via subscription   (Followers: 2, SJR: 0.203, h-index: 4)
American Political Science Review     Hybrid Journal   (Followers: 249, SJR: 6.112, h-index: 127)
Anatolian Studies     Full-text available via subscription   (Followers: 4, SJR: 0.482, h-index: 10)
Ancient Mesoamerica     Hybrid Journal   (Followers: 10, SJR: 0.507, h-index: 29)
Anglo-Saxon England     Hybrid Journal   (Followers: 33, SJR: 0.144, h-index: 12)
animal     Hybrid Journal   (Followers: 3, SJR: 1.098, h-index: 43)
Animal Health Research Reviews     Hybrid Journal   (Followers: 3, SJR: 0.838, h-index: 41)
Animal Science     Full-text available via subscription   (Followers: 9)
Annals of Actuarial Science     Full-text available via subscription   (Followers: 1)
Annual of the British School at Athens     Full-text available via subscription   (Followers: 15, SJR: 0.101, h-index: 9)
Annual Review of Applied Linguistics     Hybrid Journal   (Followers: 36, SJR: 0.753, h-index: 22)
Antarctic Science     Hybrid Journal   (Followers: 1, SJR: 0.728, h-index: 55)
Antichthon     Full-text available via subscription   (Followers: 1, SJR: 0.126, h-index: 2)
Antiquaries J., The     Full-text available via subscription   (Followers: 8, SJR: 0.156, h-index: 3)
Antiquity     Hybrid Journal   (Followers: 26, SJR: 1.133, h-index: 54)
ANZIAM J.     Open Access   (Followers: 1, SJR: 0.151, h-index: 17)
Applied Psycholinguistics     Hybrid Journal   (Followers: 19, SJR: 1.005, h-index: 59)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 8, SJR: 0.339, h-index: 4)
Arabic Sciences and Philosophy     Hybrid Journal   (Followers: 9, SJR: 0.138, h-index: 13)
Arbor Clinical Nutrition Updates     Full-text available via subscription   (Followers: 3)
Archaeological Dialogues     Hybrid Journal   (Followers: 33, SJR: 0.67, h-index: 17)
Archaeological Reports     Full-text available via subscription   (Followers: 5, SJR: 0.101, h-index: 1)
arq: Architectural Research Quarterly     Hybrid Journal   (Followers: 7, SJR: 0.101, h-index: 3)
Asian J. of Comparative Law     Hybrid Journal   (Followers: 9, SJR: 0.127, h-index: 5)
Asian J. of Intl. Law     Hybrid Journal   (Followers: 12, SJR: 0.218, h-index: 5)
Asian J. of Law and Society     Hybrid Journal   (Followers: 6, SJR: 0.179, h-index: 3)
Astin Bulletin     Full-text available via subscription   (Followers: 1, SJR: 0.979, h-index: 19)
Australasian J. of Organisational Psychology     Hybrid Journal   (Followers: 8)
Australasian J. of Special Education     Full-text available via subscription   (Followers: 7, SJR: 0.199, h-index: 6)
Australian J. of Environmental Education     Full-text available via subscription   (Followers: 7, SJR: 0.299, h-index: 5)
Australian J. of Indigenous Education, The     Full-text available via subscription   (Followers: 9, SJR: 0.293, h-index: 4)
Australian J. of Rehabilitation Counseling     Full-text available via subscription   (Followers: 4, SJR: 0.114, h-index: 1)
Austrian History Yearbook     Full-text available via subscription   (Followers: 8, SJR: 0.127, h-index: 3)
Behavioral and Brain Sciences     Hybrid Journal   (Followers: 32, SJR: 0.826, h-index: 127)
Behaviour Change     Full-text available via subscription   (Followers: 12, SJR: 0.362, h-index: 27)
Behavioural and Cognitive Psychotherapy     Hybrid Journal   (Followers: 136, SJR: 0.831, h-index: 47)
Bilingualism: Language and Cognition     Hybrid Journal   (Followers: 37, SJR: 1.359, h-index: 33)
Biofilms     Full-text available via subscription   (Followers: 1)
Bird Conservation Intl.     Hybrid Journal   (Followers: 23, SJR: 0.831, h-index: 29)
BJPsych Advances     Full-text available via subscription   (Followers: 51)
Brain Impairment     Full-text available via subscription   (Followers: 2, SJR: 0.31, h-index: 13)
Breast Cancer Online     Full-text available via subscription   (Followers: 4)
Britannia     Full-text available via subscription   (Followers: 7, SJR: 0.112, h-index: 0)
British Actuarial J.     Full-text available via subscription  
British Catholic History     Hybrid Journal   (Followers: 1)
British J. for the History of Science     Hybrid Journal   (Followers: 20, SJR: 0.804, h-index: 21)
British J. of Anaesthetic and Recovery Nursing     Full-text available via subscription   (Followers: 7)
British J. of Music Education     Hybrid Journal   (Followers: 23, SJR: 0.391, h-index: 8)
British J. Of Nutrition     Hybrid Journal   (Followers: 72, SJR: 1.587, h-index: 139)
British J. of Political Science     Hybrid Journal   (Followers: 156, SJR: 2.505, h-index: 63)
British J. of Psychiatry     Hybrid Journal   (Followers: 178, SJR: 2.674, h-index: 178)
Bulletin of Entomological Research     Hybrid Journal   (Followers: 10, SJR: 0.918, h-index: 54)
Bulletin of Symbolic Logic     Full-text available via subscription   (Followers: 2, SJR: 1.405, h-index: 26)
Bulletin of the Australian Mathematical Society     Full-text available via subscription   (Followers: 1, SJR: 0.488, h-index: 30)
Bulletin of the School of Oriental and African Studies     Hybrid Journal   (Followers: 18, SJR: 0.122, h-index: 11)
Business and Human Rights J.     Full-text available via subscription   (Followers: 3)
Business Ethics Quarterly     Full-text available via subscription   (Followers: 12, SJR: 1.534, h-index: 46)
Business History Review     Full-text available via subscription   (Followers: 14, SJR: 0.291, h-index: 20)
Cambridge Archaeological J.     Hybrid Journal   (Followers: 121, SJR: 0.743, h-index: 32)
Cambridge Classical J.     Full-text available via subscription   (Followers: 18, SJR: 0.101, h-index: 6)
Cambridge J. of Postcolonial Literary Inquiry     Hybrid Journal   (Followers: 6)
Cambridge Law J.     Hybrid Journal   (Followers: 152, SJR: 0.173, h-index: 3)
Cambridge Opera J.     Hybrid Journal   (Followers: 5, SJR: 0.227, h-index: 9)
Cambridge Quarterly of Healthcare Ethics     Hybrid Journal   (Followers: 11, SJR: 0.295, h-index: 25)
Camden Fifth Series     Full-text available via subscription   (Followers: 2)
Canadian Entomologist     Hybrid Journal   (Followers: 5, SJR: 0.388, h-index: 34)
Canadian J. of Emergency Medicine     Hybrid Journal   (Followers: 11, SJR: 0.532, h-index: 32)
Canadian J. of Law & Jurisprudence     Full-text available via subscription   (Followers: 9)
Canadian J. of Law and Society     Hybrid Journal   (Followers: 19, SJR: 0.247, h-index: 6)
Canadian J. of Neurological Sciences     Full-text available via subscription   (SJR: 0.477, h-index: 53)
Canadian J. of Political Science/Revue canadienne de science politique     Full-text available via subscription   (Followers: 23, SJR: 1.161, h-index: 23)
Canadian J. on Aging     Hybrid Journal   (Followers: 10, SJR: 0.292, h-index: 29)
Canadian Yearbook of Intl. Law / Annuaire canadien de droit international     Full-text available via subscription   (Followers: 1)
Cardiology in the Young     Hybrid Journal   (Followers: 32, SJR: 0.312, h-index: 40)
Central European History     Full-text available via subscription   (Followers: 30, SJR: 0.201, h-index: 14)
Children Australia     Partially Free   (Followers: 2, SJR: 0.191, h-index: 2)
China Quarterly     Hybrid Journal   (Followers: 49, SJR: 1.058, h-index: 54)
Chinese J. of Agricultural Biotechnology     Full-text available via subscription   (Followers: 4)
Church History: Studies in Christianity and Culture     Full-text available via subscription   (Followers: 72, SJR: 0.113, h-index: 16)
Classical Quarterly     Full-text available via subscription   (Followers: 28, SJR: 0.151, h-index: 24)
Classical Review     Full-text available via subscription   (Followers: 24)
CNS Spectrums     Hybrid Journal   (Followers: 3, SJR: 0.885, h-index: 60)
Cognitive Behaviour Therapist     Hybrid Journal   (Followers: 12)
Combinatorics, Probability and Computing     Hybrid Journal   (Followers: 4, SJR: 1.013, h-index: 35)
Communications in Computational Physics     Full-text available via subscription   (Followers: 2, SJR: 1.198, h-index: 34)
Comparative Studies in Society and History     Full-text available via subscription   (Followers: 45, SJR: 0.725, h-index: 36)
Compositio Mathematica     Full-text available via subscription   (Followers: 1, SJR: 2.965, h-index: 37)
Contemporary European History     Hybrid Journal   (Followers: 25, SJR: 0.369, h-index: 16)
Continuity and Change     Hybrid Journal   (Followers: 12, SJR: 0.266, h-index: 19)
Dance Research J.     Full-text available via subscription   (Followers: 8, SJR: 0.144, h-index: 5)
Development and Psychopathology     Hybrid Journal   (Followers: 8, SJR: 2.342, h-index: 131)
Dialogue Canadian Philosophical Review/Revue canadienne de philosophie     Full-text available via subscription   (Followers: 3, SJR: 0.126, h-index: 7)
Diamond Light Source Proceedings     Full-text available via subscription  
Disaster Medicine and Public Health Preparedness     Hybrid Journal   (Followers: 11, SJR: 0.274, h-index: 24)
Du Bois Review: Social Science Research on Race     Full-text available via subscription   (Followers: 8, SJR: 0.307, h-index: 5)
Early China     Hybrid Journal   (Followers: 3)
Early Music History     Hybrid Journal   (Followers: 8, SJR: 0.164, h-index: 8)
Earth and Environmental Science Transactions of the Royal Society of Edinburgh     Hybrid Journal   (Followers: 5, SJR: 0.325, h-index: 41)
East Asian J. on Applied Mathematics     Full-text available via subscription   (SJR: 0.424, h-index: 6)
Ecclesiastical Law J.     Full-text available via subscription   (Followers: 6, SJR: 0.1, h-index: 2)
Econometric Theory     Hybrid Journal   (Followers: 16, SJR: 2.219, h-index: 52)
Economics and Philosophy     Hybrid Journal   (Followers: 16, SJR: 0.624, h-index: 19)
Edinburgh J. of Botany     Hybrid Journal   (SJR: 0.324, h-index: 20)
Eighteenth-Century Music     Hybrid Journal   (Followers: 11, SJR: 0.1, h-index: 4)
English Language and Linguistics     Hybrid Journal   (Followers: 24, SJR: 0.387, h-index: 18)
English Profile J.     Hybrid Journal   (Followers: 2)
English Today     Hybrid Journal   (Followers: 9, SJR: 0.302, h-index: 4)
Enterprise & Society : The Intl. J. of Business History     Hybrid Journal   (Followers: 16, SJR: 0.452, h-index: 17)
Environment and Development Economics     Hybrid Journal   (Followers: 32, SJR: 0.617, h-index: 43)
Environmental Conservation     Hybrid Journal   (Followers: 58, SJR: 1.09, h-index: 66)
Environmental Practice     Full-text available via subscription   (Followers: 3, SJR: 0.304, h-index: 15)
Epidemiology & Infection     Hybrid Journal   (Followers: 15, SJR: 1.32, h-index: 85)
Epidemiology and Psychiatric Sciences     Hybrid Journal   (Followers: 3, SJR: 0.699, h-index: 28)
Episteme     Hybrid Journal   (Followers: 11, SJR: 0.678, h-index: 2)
Equine and Comparative Exercise Physiology     Full-text available via subscription   (Followers: 6)
Ergodic Theory and Dynamical Systems     Hybrid Journal   (Followers: 2, SJR: 1.456, h-index: 43)
Ethics & Intl. Affairs     Full-text available via subscription   (Followers: 11, SJR: 0.464, h-index: 6)
European Constitutional Law Review (EuConst)     Full-text available via subscription   (Followers: 31, SJR: 1.269, h-index: 15)
European J. of Applied Mathematics     Hybrid Journal   (SJR: 0.939, h-index: 34)
European J. of Sociology     Hybrid Journal   (Followers: 28, SJR: 0.241, h-index: 26)
European Political Science Review     Hybrid Journal   (Followers: 20, SJR: 0.524, h-index: 5)
European Review     Hybrid Journal   (Followers: 17, SJR: 0.119, h-index: 17)
Experimental Agriculture     Hybrid Journal   (Followers: 12, SJR: 0.486, h-index: 31)
Expert Reviews in Molecular Medicine     Hybrid Journal   (Followers: 1, SJR: 1.776, h-index: 60)
Fetal and Maternal Medicine Review     Hybrid Journal   (Followers: 4, SJR: 0.178, h-index: 14)
Financial History Review     Full-text available via subscription   (Followers: 14, SJR: 0.342, h-index: 11)
Foreign Policy Bulletin     Hybrid Journal   (Followers: 6)
Forum of Mathematics, Pi     Open Access   (Followers: 1)
Forum of Mathematics, Sigma     Open Access   (Followers: 1)
Genetics Research     Hybrid Journal   (Followers: 4, SJR: 0.52, h-index: 59)
Geological Magazine     Hybrid Journal   (Followers: 16, SJR: 1.119, h-index: 64)
Glasgow Mathematical J.     Full-text available via subscription   (Followers: 1, SJR: 0.748, h-index: 25)
Global Constitutionalism     Hybrid Journal   (Followers: 16)
Global Mental Health     Open Access   (Followers: 6)
Government and Opposition     Full-text available via subscription   (Followers: 20, SJR: 0.611, h-index: 32)
Greece & Rome     Partially Free   (Followers: 21, SJR: 0.136, h-index: 15)
Hague J. on the Rule of Law     Full-text available via subscription   (Followers: 12, SJR: 0.12, h-index: 11)
Harvard Theological Review     Full-text available via subscription   (Followers: 63, SJR: 0.237, h-index: 17)
Health Economics, Policy and Law     Hybrid Journal   (Followers: 25, SJR: 0.441, h-index: 21)
Hegel Bulletin     Full-text available via subscription   (Followers: 1)
High Power Laser Science and Engineering     Open Access   (Followers: 3)
Historical J.     Hybrid Journal   (Followers: 32, SJR: 0.337, h-index: 23)
History in Africa     Full-text available via subscription   (Followers: 8)
Horizons     Partially Free   (Followers: 1, SJR: 0.112, h-index: 3)
Industrial and Organizational Psychology     Hybrid Journal   (Followers: 20, SJR: 0.47, h-index: 18)
Infection Control and Hospital Epidemiology     Full-text available via subscription   (Followers: 34, SJR: 1.985, h-index: 108)
Intl. & Comparative Law Quarterly     Full-text available via subscription   (Followers: 162, SJR: 0.324, h-index: 25)
Intl. J. of Asian Studies     Hybrid Journal   (Followers: 12, SJR: 0.107, h-index: 1)
Intl. J. of Astrobiology     Hybrid Journal   (Followers: 2, SJR: 0.384, h-index: 18)
Intl. J. of Cultural Property     Full-text available via subscription   (Followers: 13, SJR: 0.154, h-index: 1)
Intl. J. of Disability Management Research     Full-text available via subscription   (Followers: 8, SJR: 0.179, h-index: 2)
Intl. J. of Law in Context     Hybrid Journal   (Followers: 16, SJR: 0.236, h-index: 5)
Intl. J. of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 7, SJR: 0.232, h-index: 11)
Intl. J. of Middle East Studies     Hybrid Journal   (Followers: 64, SJR: 0.501, h-index: 28)
Intl. J. of Technology Assessment in Health Care     Hybrid Journal   (Followers: 12, SJR: 0.854, h-index: 54)
Intl. J. of Tropical Insect Science     Hybrid Journal   (Followers: 1, SJR: 0.299, h-index: 20)
Intl. Labor and Working-Class History     Full-text available via subscription   (Followers: 11, SJR: 0.262, h-index: 14)
Intl. Organization     Full-text available via subscription   (Followers: 86, SJR: 3.67, h-index: 106)
Intl. Psychogeriatrics     Hybrid Journal   (Followers: 13, SJR: 1.068, h-index: 68)
Intl. Review of Social History     Full-text available via subscription   (Followers: 23, SJR: 0.185, h-index: 16)
Intl. Review of the Red Cross     Full-text available via subscription   (Followers: 10, SJR: 0.275, h-index: 10)
Intl. Theory: A J. of Intl. Politics, Law and Philosophy     Hybrid Journal   (Followers: 19, SJR: 0.774, h-index: 4)
Iraq     Full-text available via subscription   (Followers: 2)
Irish Historical Studies     Hybrid Journal   (Followers: 5, SJR: 0.101, h-index: 8)
Irish J. of Psychological Medicine     Hybrid Journal   (Followers: 1, SJR: 0.107, h-index: 14)
Israel Law Review     Hybrid Journal   (Followers: 3, SJR: 0.12, h-index: 2)
Itinerario     Full-text available via subscription   (Followers: 8, SJR: 0.195, h-index: 4)
J. of African History     Hybrid Journal   (Followers: 21, SJR: 0.381, h-index: 25)
J. of African Law     Full-text available via subscription   (Followers: 3, SJR: 0.125, h-index: 6)
J. of Agricultural and Applied Economics     Open Access   (Followers: 1)
J. of Agricultural Science     Full-text available via subscription   (Followers: 6, SJR: 0.56, h-index: 51)
J. of American Studies     Hybrid Journal   (Followers: 20, SJR: 0.133, h-index: 9)
J. of Anglican Studies     Hybrid Journal   (Followers: 6, SJR: 0.101, h-index: 1)
J. of Applied Animal Nutrition     Hybrid Journal   (Followers: 3)
J. of Asian Studies     Full-text available via subscription   (Followers: 36, SJR: 0.331, h-index: 31)
J. of Benefit-Cost Analysis     Hybrid Journal   (Followers: 2)
J. of Biosocial Science     Hybrid Journal   (Followers: 3, SJR: 0.561, h-index: 41)
J. of British Studies     Full-text available via subscription   (Followers: 30, SJR: 0.306, h-index: 23)
J. of Child Language     Hybrid Journal   (Followers: 20, SJR: 0.787, h-index: 55)
J. of Dairy Research     Full-text available via subscription   (Followers: 7, SJR: 0.682, h-index: 60)
J. of Demographic Economics     Hybrid Journal   (Followers: 3)
J. of Developmental Origins of Health and Disease     Hybrid Journal   (Followers: 2, SJR: 0.74, h-index: 11)
J. of Diagnostic Radiography and Imaging     Hybrid Journal   (Followers: 4)
J. of Ecclesiastical History     Hybrid Journal   (Followers: 19, SJR: 0.123, h-index: 14)
J. of Economic History     Full-text available via subscription   (Followers: 45, SJR: 1.224, h-index: 44)
J. of Experimental Political Science     Full-text available via subscription   (Followers: 5)
J. of Financial and Quantitative Analysis     Full-text available via subscription   (Followers: 33, SJR: 2.998, h-index: 80)
J. of Fluid Mechanics     Hybrid Journal   (Followers: 135, SJR: 1.45, h-index: 155)
J. of French Language Studies     Hybrid Journal   (Followers: 5, SJR: 0.158, h-index: 8)
J. of Functional Programming     Hybrid Journal   (Followers: 1, SJR: 0.917, h-index: 39)
J. of Germanic Linguistics     Full-text available via subscription   (Followers: 7, SJR: 0.219, h-index: 4)

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Journal Cover Canadian Entomologist
  [SJR: 0.388]   [H-I: 34]   [5 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0008-347X - ISSN (Online) 1918-3240
   Published by Cambridge University Press Homepage  [365 journals]
  • TCE volume 150 issue 2 Cover and Front matter
    • PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2018.6
      Issue No: Vol. 150, No. 2 (2018)
  • TCE volume 150 issue 2 Cover and Back matter
    • PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2018.7
      Issue No: Vol. 150, No. 2 (2018)
  • Akonesis+Opitz+(Coleoptera:+Cleridae:+Peloniinae)&rft.title=Canadian+Entomologist&rft.issn=0008-347X&">Taxonomy of the New World checkered beetle genus Akonesis Opitz
           (Coleoptera: Cleridae: Peloniinae)
    • Authors: Weston Opitz
      Pages: 141 - 155
      Abstract: The genera Akonesis Opitz, Crusbatus Opitz, and Diutius Opitz, which comprise a monophyletic group within Peloniinae (Coleoptera: Cleridae), are discussed. The species of Akonesis are reviewed. There are five recognised species of Akonesis: A. pictipennis (Gorham), A. privoatus Opitz new species, A. ridens (Gorham), A. strictus Opitz new species, and A. vittatus (Spinola). According to the morphological analysis performed herein, the species treated in this work are thought to be predatory. Colour patterns of the elytra and field observations suggest that members of Akonesis and Diutius are involved in Batesian mimicry with Chrysomelidae (Coleoptera), and in particular with Galerucinae. Included in this treatise are: a brief discussion of the natural history and evolution of Akonesis species, one Bootstrap consensus tree, a key to Akonesis species, a phylogenetic tree generated by WINCLADA in conjunction with NONA, 15 line drawings, 10 electron micrographs, one distribution map, four photographs of male terminalia, and five colour habitus photographs.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.67
      Issue No: Vol. 150, No. 2 (2018)
  • Elusively overwintering: a review of diamondback moth (Lepidoptera:
           Plutellidae) cold tolerance and overwintering strategy
    • Authors: Tina Dancau; Peter G. Mason, Naomi Cappuccino
      Pages: 156 - 173
      Abstract: There is no consensus on the overwintering strategy used by the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae). As a result, the topic of diamondback moth overwintering in temperate climates remains controversial. However, there has been general agreement that the diamondback moth does not overwinter in diapause. This review compiles data on low temperature survival to determine cold tolerance mechanisms and the cold tolerance strategy of the diamondback moth. According to cold tolerance data and observations from key overwintering studies in eastern North America, the diamondback moth likely overwinters in a quiescent state in no specific overwintering stage and is chill susceptible. Observations from key overwintering studies suggest a northern overwintering limit for diamondback moth of ~43°N in eastern North America. Climate change may alter winter conditions in temperate climates, making temperate regions susceptible to potential diamondback moth overwintering and recurring outbreaks.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2018.2
      Issue No: Vol. 150, No. 2 (2018)
  • Mindarus+abietinus+(Hemiptera:+Aphididae):+possible+implications+for+cold+hardiness+and+diapause+termination&rft.title=Canadian+Entomologist&rft.issn=0008-347X&çois&çois+Doherty&édéric+Guay,+Conrad+Cloutier&rft_id=info:doi/10.4039/tce.2017.61">Early springtime water absorption by overwintering eggs of Mindarus
           abietinus (Hemiptera: Aphididae): possible implications for cold hardiness
           and diapause termination
    • Authors: Jean-François Doherty; Jean-Frédéric Guay, Conrad Cloutier
      Pages: 174 - 179
      Abstract: Eggs of the balsam twig aphid Mindarus abietinus Koch (Hemiptera: Aphididae) overwinter for several months in obligate diapause, which terminates in early springtime when embryogenesis of the stem mother supposedly resumes. Important shape and size changes were observed on eggs collected at regular intervals during late winter and early spring. These observations led to the visual classification of eggs into three shape categories: flat eggs (C1), semi-flat eggs (C2), and round and turgid eggs (C3). Egg mass significantly increased with time during late winter and early spring, which coincided with the noticeable changes in morphological composition (i.e., from C2 to C3). Our observations suggest that free water surrounding eggs on fir (Abies balsamea (Linnaeus) Miller; Pinaceae) shoots is essential for M. abietinus normal embryonic development during snowmelt. Also, reduced egg water content during winter could modify its supercooling point, and the renewed availability of water in springtime may signal diapause termination and/or initiate embryogenesis of the stem mother.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.61
      Issue No: Vol. 150, No. 2 (2018)
  • Abundance and stability of populations of chewing lice (Phthiraptera:
           Amblycera and Ischnocera) infesting two species of woodpeckers (Aves:
           Piciformes: Picidae)
    • Authors: Robert J. Lamb; Terry D. Galloway
      Pages: 180 - 189
      Abstract: The annual abundance of chewing lice (Phthiraptera) was recorded from 1996 to 2015 in Manitoba, Canada, on two species of woodpeckers (Piciformes: Picidae). Yellow-bellied sapsuckers (Sphyrapicus varius (Linnaeus)) were infested with Menacanthus pici (Denny) (Amblycera: Menoponidae) and Penenirmus auritus (Scopoli) (Ischnocera: Philopteridae); northern flickers (Colaptes auratus (Linnaeus)) were also infested with M. pici, as well as two other Ischnocera, Penenirmus jungens (Kellogg) and Picicola porisma Dalgleish. The mean annual abundance varied from nine to 51 lice per bird for the four species, with prevalence, mean intensity, sex ratio, and nymphs per female also varying among louse species. Menacanthus pici populations on both hosts were unstable: abundance rose over two decades because of increasing prevalence, whereas the abundance of the other three louse species fluctuated around a mean. Population variability was similar for the lice on both hosts, with the metric, PV, ranging from 0.41 to 0.51 on a 0–1 scale, once the effect of the trend in abundance for M. pici had been removed. Although the population dynamics for species of lice on these two woodpeckers were distinct, inter-specific differences in population stability were less pronounced than observed in the few other species of bird lice studied in this way.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.62
      Issue No: Vol. 150, No. 2 (2018)
  • Nabis+(Hemiptera:+Nabidae)+predators+to+leafhopper+prey+(Hemiptera:+Cicadellidae)&rft.title=Canadian+Entomologist&rft.issn=0008-347X&,+Thomas+O.+Crist&rft_id=info:doi/10.4039/tce.2017.68">The functional response and prey preference of generalist Nabis
           (Hemiptera: Nabidae) predators to leafhopper prey (Hemiptera:
    • Authors: David J. Stasek; James N. Radl, Thomas O. Crist
      Pages: 190 - 200
      Abstract: Insects of the family Nabidae (Hemiptera) are generalist predators commonly found in agroecosystems, but little is known about their predation rates on common pests of forage crops. We determined the functional response and prey preference of Nabis Latreille species to two common leafhopper pests of red clover (Trifolium pratense Linnaeus; Fabaceae): Agallia constricta Van Duzee (Hemiptera: Cicadellidae) and Ceratagallia agricola (Hamilton) (Hemiptera: Cicadellidae). We also determined the survivorship of A. constricta to predation by Nabis species over the course of five days. The Nabis species displayed a Type III functional response to both leafhopper species with a preference for A. constricta. The 10-A. constricta/cage treatments and 20-A. constricta/cage treatments had the highest survival probabilities after five days with survival probabilities of 0.19 and 0.23, respectively. These results indicate that Nabis species may help in controlling leafhopper populations in forage-crop systems.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.68
      Issue No: Vol. 150, No. 2 (2018)
  • Phlebopenes+(Hymenoptera:+Eupelmidae),+with+the+first+record+of+Phlebopenes+longicaudata+attacking+nests+of+oil-collecting+bees+of+the+genus+Tetrapedia+(Hymenoptera:+Apidae)&rft.title=Canadian+Entomologist&rft.issn=0008-347X&éo&éo+Correia+da+Rocha-Filho&ófalo,+Gary+A.P.+Gibson&rft_id=info:doi/10.4039/tce.2017.69">The hosts of Phlebopenes (Hymenoptera: Eupelmidae), with the first record
           of Phlebopenes longicaudata attacking nests of oil-collecting bees of the
           genus Tetrapedia (Hymenoptera: Apidae)
    • Authors: Léo Correia da Rocha-Filho; Carlos Alberto Garófalo, Gary A.P. Gibson
      Pages: 201 - 204
      Abstract: Two rearing records from trap nests set in São Paulo State, Brazil and one oviposition observation show that the parasitoid wasp Phlebopenes longicaudata (Westwood) (Hymenoptera: Eupelmidae: Eupelminae) parasitises the nests of oil-collecting bees of the genus Tetrapedia Klug (Hymenoptera: Apidae). Based on this and one previously published host record, species of Phlebopenes Perty are newly hypothesised to be parasitoids of solitary wasps and bees rather than wood-boring Coleoptera. Other Eupelmidae reported as parasitoids of aculeate wasps are summarised.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.69
      Issue No: Vol. 150, No. 2 (2018)
  • Modernisation of the Hymenoptera: ants, bees, wasps, and sawflies of the
           early Eocene Okanagan Highlands of western North America
    • Authors: S. B. Archibald; Alexandr P. Rasnitsyn, Denis J. Brothers, Rolf W. Mathewes
      Pages: 205 - 257
      Abstract: Most major modern families of Hymenoptera were established in the Mesozoic, but the diversifications within ecologically key trophic guilds and lineages that significantly influence the character of modern terrestrial ecosystems – bees (Apiformes), ants (Formicidae), social Vespidae, parasitoids (Ichneumonidae), and phytophagous Tenthredinoidea – were previously known to occur mostly in the middle to late Eocene. We find these changes earlier, seen here in the early Eocene Okanagan Highlands fossil deposits of western North America. Some of these may have occurred even earlier, but have been obscured by taphonomic processes. We provide an overview of the Okanagan Highlands Hymenoptera to family level and in some cases below that, with a minimum of 25 named families and at least 30 when those tentatively assigned or distinct at family level, but not named are included. Some are poorly known as fossils (Trigonalidae, Siricidae, Peradeniidae, Monomachidae), and some represent the oldest confirmed occurrences (Trigonalidae, Pompilidae, Sphecidae sensu stricto, Peradeniidae, Monomachidae, and possibly Halictidae). Some taxa previously thought to be relictual or extinct by the end of the Cretaceous (Angarosphecidae, Archaeoscoliinae, some Diapriidae) are present and sometimes abundant in the early Eocene. Living relatives of some taxa are now present in different climate regimes or on different continents.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.59
      Issue No: Vol. 150, No. 2 (2018)
  • Insecticidal and synergistic activity of two monoterpenes against
           diamondback moth (Lepidoptera: Plutellidae)
    • Authors: A.E. Webster; P. Manning, J.M. Sproule, N. Faraone, G.C. Cutler
      Pages: 258 - 264
      Abstract: We examined the insecticidal activity of linalool and thymol, against diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae), and whether they would synergise the activity of spinosad against this pest. Both linalool and thymol were toxic to diamondback moth larvae by topical and oral exposure, but orders of magnitude less so than spinosad. We found that low concentrations of linalool weakly synergised spinosad, increasing its toxicity more than twofold. An interaction between spinosad, and acetone meant it was not possible to identify any potential synergisms between thymol and spinosad. Our results demonstrate limited potential for thymol and linalool to act as biopesticides or synergists for managing diamondback moth.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.63
      Issue No: Vol. 150, No. 2 (2018)
  • Conserving carnivorous arthropods: an example from early-season cranberry
           (Ericaceae) flooding
    • Authors: J. van Zoeren; C. Guédot, S.A. Steffan
      Pages: 265 - 273
      Abstract: Biological control plays an important role in many integrated pest management programmes, but can be disrupted by other control strategies, including chemical and cultural controls. In commercial cranberry (Vaccinium macrocarpon Aiton; Ericaceae) production, a spring flood can replace an insecticide application, providing an opportunity to study the compatibility of the flood (a cultural control) with biological control. We suspect that chemical controls will tend to reduce the number of natural enemies, while the flood, through removal of detritus and detritivores, may cause generalist predators to prey-switch to consume proportionally more pest individuals. We measured the abundance of herbivores (Lepidoptera), detritivores, Arachnida, and parasitoids (Hymenoptera) every week for six weeks in Wisconsin (United States of America) cranberry beds following either an insecticide spray or a cultural control flood. We found that detritivore populations rapidly declined in both flood and spray treatments; conversely, carnivore populations (spiders and parasitoids) were more abundant in the flooded beds than in sprayed beds. Populations of key cranberry pests were similar between flooded and sprayed beds. Our results showed that early-season flooding preserved more natural enemies than an insecticide application. This increase in natural enemy abundance after the flood may allow for greater continuity in herbivore suppression, potentially providing a basis for long-term cranberry pest management.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.66
      Issue No: Vol. 150, No. 2 (2018)
  • Microctonus+aethiopoides+(Hymenoptera:+Braconidae),+a+parasitoid+of+the+alfalfa+weevil+(Coleoptera:+Curculionidae),+across+the+northern+Great+Plains+of+North+America&rft.title=Canadian+Entomologist&rft.issn=0008-347X&,+Randa+Jabbour,+Jonathan+G.+Lundgren,+Debra+K.+Waters&rft_id=info:doi/10.4039/tce.2017.65">Evaluating the establishment success of Microctonus aethiopoides
           (Hymenoptera: Braconidae), a parasitoid of the alfalfa weevil (Coleoptera:
           Curculionidae), across the northern Great Plains of North America
    • Authors: Tatyana A. Rand; Makenzie Pellissier, Randa Jabbour, Jonathan G. Lundgren, Debra K. Waters
      Pages: 274 - 277
      Abstract: The alfalfa weevil (Hypera postica (Gyllenhal); Coleoptera: Curculionidae), is a destructive pest of alfalfa (Medicago sativa Linnaeus; Fabaceae) worldwide. The biological control parasitoid, Microctonus aethiopoides Loan (Hymenoptera: Braconidae), was successfully introduced, and considered highly effective, in the eastern and mid-western United States of America. Redistribution efforts carried out throughout the 1980s reported initial establishment in the northern Great Plains, however follow-up studies to assess long-term persistence and efficacy are lacking. We resurveyed the counties in which M. aethiopoides had been initially recovered following redistribution in Montana (Flathead and Petroleum counties), Wyoming (Platte County), and South Dakota (Brookings County), to gauge whether this species has become permanently established and, if so, assess levels of parasitism in the field. We collected adult weevils from five fields in each county, and reared them in the laboratory to assess parasitism. Despite rearing more than 1000 weevils, no parasitoids were recovered from any of the locations sampled in our study, suggesting a widespread failure of M. aethiopoides to persist in the region. Thus, M. aethiopoides does not currently appear to be an important biological control agent of alfalfa weevil in the northern Great Plains. More intensive surveys will be required to assess the extent of the distributional limits of this species throughout the region.
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2017.65
      Issue No: Vol. 150, No. 2 (2018)
  • Conserving carnivorous arthropods: an example from early-season cranberry
           (Ericaceae) flooding—ADDENDUM
    • Authors: J. van Zoeren; C. Guédot, S.A. Steffan
      Pages: 278 - 278
      PubDate: 2018-04-01T00:00:00.000Z
      DOI: 10.4039/tce.2018.11
      Issue No: Vol. 150, No. 2 (2018)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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