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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Overview of two introduced spiders, Tegenaria agrestis walckenaer and Tegenaria duellica simon (agelenidae), in Washington State life history development, interactions and medical importance /

Gaver-Wainwright, Melissa M. January 2009 (has links) (PDF)
Thesis (Ph. D.)--Washington State University, December 2009. / Title from PDF title page (viewed on Dec. 11, 2009). "Department of Entomology." Includes bibliographical references.
12

Aspects of the biology of the black widow spider, Latrodectus hesperus Chamberlin and Ivie (Araneae, Theridiidae)

Ross, Kenneth George January 1979 (has links)
No description available.
13

Characterizing Transient Regime Multi-frequency Raman Generation by the Aid of Spectral Phase Interferometry for Direct Electric-field Reconstruction

Yan, Hao 05 September 2013 (has links)
Multi-frequency Raman Generation (MRG) has been achieved in the transient regime excited by dual-wavelength chirped pump pulses. Spectral phase interferometry for direct electric-field reconstruction (SPIDER) technique is used to study the group velocity dispersion (GVD) of MRG. A few changes have been applied to the SPIDER set-up to adapt it to the multi-color but narrow-bandwidth pulses. The phase of orders from the 1st Stokes order through to the 1st anti-Stokes order are measured. The technique is applied on the study of phase dependency of the 1st anti-Stokes orders on frequency tuning through the Raman transition.
14

Molecular characterization and evolutionary study of spider silk proteins

Tian, Maozhen. January 2005 (has links)
Thesis (Ph. D.)--University of Wyoming, 2005. / Title from PDF title page (viewed on March 10, 2008). Includes bibliographical references (p. 89-96).
15

Revision of the Nearctic species of the pompilid genus Pepsis (Hymenoptera, Pompilidae)

Hurd, Paul David, January 1952 (has links)
Thesis--University of California. / Bibliography: p. 328-334.
16

Solid state molecular dynamics of spider silk peptides in a fiber

Nelson, Shane R. January 2006 (has links)
Thesis (Ph. D.)--University of Wyoming, 2006. / Title from PDF title page (viewed on June 26, 2008). Includes bibliographical references (p. 169-177).
17

Nucleotide sequence, evolution and expression of the fetal globin gene of the spider monkey Ateles geoffroyi

Giebel, Lutz B. January 1985 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1985. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 17-21).
18

Some behavioral, physiological and anatomical aspects of the somatic sensory nervous system of the spider monkey (Ateles)

Pubols, Lillian M. January 1966 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1966. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
19

Cladistic analysis of Macrobunidae Petrunkevitch, 1928 new rank and revision of Macrobuninae (Araneae). / Análise cladística de Macrobunidae Petrunkevitch 1928 stat. nov. e revisão de Macrobuninae (Araneae)

Lina Maria Almeida-Silva 26 August 2013 (has links)
Macrobuninae Petrunkevitch is revised and submitted to a cladistic analysis. Macrobuninae, once considered the biggest Amaurobiidae Thorell subfamily is now proved to be not even closely related to Amaurobiinae, the \"true amaurobiids\". Our matrix, composed by 82 terminal taxa and 107 characters, includes representatives of all Macrobuninae genera and new taxa we believed to be part of Macrobuninae. As out-groups, we included representatives of the families Agelenidae Koch, Amaurobiidae, Amphinectidae Forster & Wilton, Chummidae Jocqué, Desidae Pocock, Dictynidae O. P.-Cambridge, Phyxelididae Lehtinen, Stiphidiidae Dalmas, Tengellidae Dahl, Titanoecidae Lehtinen, Zorocratidae Dahl and Zoropsidae Bertkau, which were suggested as related to Macrobuninae by previous studies. Our main results confirm Macrobuninae as not forming a monophyletic group with Amaurobiidae and shows the need to erect Macrobunidae Petrunkevitch, 1928 new rank to include Macrobuninae and relatives. Three other subfamilies are proposed here: Retirinae subfam. nov., Pakehinae subfam. nov., and Zanomyinae Ubick, 2005 new rank. Chummidae, currently composed by one genus and two species, is considered a junior-synonym with Macrobunidae. Amaurobiidae appears as sister group of the \"Oval Calamistrum Clade\" and the \"Fused Paracribellar clade\". The subfamily Macrobuninae is revised at the generic-level and redelimited to include a total of 26 genera. Of those, thirteen are newly described: Siyabonga gen. nov., Peckmaria gen. nov., Ijoubetumsam gen. nov., Imbumbulu gen. nov., Ibhulashi gen. nov., Umunwe gen. nov., Pigozzoi gen. nov., Samadhia gen. nov., Naynay gen. nov., Segoko gen. nov., Deusemais gen. nov., Madiba gen. nov. and Ushaka gen nov.. The remaining known genera are redescribed including their type-species, except the ones with recent, up to date descriptions. Seventeen new species are described: Emmenomma joshuabelli sp. nov., Macrobunus alejandrosanzi, sp. nov., Macrobunus eniomattosi sp. nov., Yupanquia lenktaitisi sp. nov., Ijoubetumsam frizzellae sp. nov., Deusemais viximaria sp. nov., Naynay meikleae sp. nov., Pigozzoi pifozonho sp. nov., Samadhia kellyfujiharae sp. nov., Siyabonga kakhulu sp. nov., Imbumbulu westhuizenis sp. nov., Madiba haddadi sp. nov., Ushaka umsila sp. nov., Ushaka philai sp. nov., Ibhulashi lakeside sp. nov., Umunwe ndabae sp. nov. and Segoko chueneorum sp. nov. Eight genera removed from Macrobuninae are assigned to other subfamilies and/or families. All taxonomic changes are justified by the phylogenetic analysis. For the first time the male specimens of Hicanodon Tullgren, Yupanquia Lehtinen and Chresiona Simon are described; Anisacate fuegianum bransfield Usher is raised to the species level, A. bransfield Usher new rank; Emmenomma beauchenicum Usher is considered junior synonym of E. oculatum Simon; Emmenomma oculatum obscurum Simon is removed from the synonym with E. oculatum and raised to the species level, Emmenomma obscurum Simon new rank. The type specimens of Macrobunus backhauseni (Simon) are considered non co-specifics and a new species Macrobunus alejandrosanzi sp. nov. is described based on the female. The true female of M. backhauseni is described for the first time. Other taxonomic changes include: removal of Notolathys Mello-Leitão from synonymy with Auximella Strand and placement as a junior synonym of Retiro Mello-Leitão; to consider Urepus Roth a junior synonym of Auximella; and Tymbira Mello-Leitão a junior synonym of Metaltella Mello-Leitão / Macrobuninae é alvo de uma revisão e análise cladística. Esta subfamília, que já foi considerada a maior de Amaurobiidae, mostra-se pouco relacionada aos Amaurobiinae ou \"amaurobiideos verdadeiros\". A matriz deste estudo, composta por 82 taxa terminais e 107 caracteres inclui representantes de todos os gêneros de Macrobuninae e novos taxa desta subfamília. Como grupo-externo, foram utilizados representantes de: Agelenidae Koch, Amaurobiidae, Amphinectidae Forster & Wilton, Chummidae Jocqué, Desidae Pocock, Dictynidae O. P.-Cambridge, Phyxelididae Lehtinen, Stiphidiidae Dalmas, Tengellidae Dahl, Titanoecidae Lehtinen, Zorocratidae Dahl e Zoropsidae Bertkau, uma vez que estas famílias foram relacionadas a Macrobuninae em outros estudos. Os resultados principais confirmam que Macrobuninae não está intimamente relacionada a Amaurobiidae e confirma a necessidade de elevar Macrobuninae à categoria de família, Macrobunidae Petrunckevitch, 1928 status nov. a fim de incluir os Macrobuninae e generos relacionados. Três subfamílias aqui descritas: Retirinae subfam. nov., Pakehinae subfam. nov., and Zanomyinae Ubick, 2005 status nov.. Chummidae Jocqué, atualmente composta por um gênero e duas espécies, passa a ser considerada sinônimo-junior de Macrobunidae. Amaurobiidae aparece como grupo-irmão dos clados \"paracribellares fundidas\" e calamistro oval. A subfamília Macrobuninae é revisada em nível genérico e redelimitada a fim de incluir um total de 26 gêneros. Destes, treze gêneros novos são descritos: Siyabonga gen . nov., Peckmaria gen. nov., Ijoubetumsam gen. nov., Imbumbulu gen. nov., Ibhulashi gen. nov., Umunwe gen. nov., Pigozzoi gen. nov., Samadhia gen. nov., Naynay gen. nov., Segoko gen. nov., Deusemais gen. nov., Madiba gen. nov. and Ushaka gen nov.. Dos treze gêneros conhecidos, apenas os que possuem descriçoões recentes e atualizadas não tiveram suas espécies-tipo redescritas. Dezessete espécies novas são descritas: Emmenomma joshuabelli sp. nov., Macrobunus alejandrosanzi, sp. nov., Macrobunus eniomattosi sp. nov., Yupanquia lenktaitisi sp. nov., Ijoubetumsam frizzellae sp. nov., Deusemais viximaria sp. nov., Naynay meikleae sp. nov., Pigozzoi pifozonho sp. nov., Samadhia kellyfujiharae sp. nov., Siyabonga kakhulu sp. nov., Imbumbulu westhuizenis sp. nov., Madiba haddadi sp. nov., Ushaka umsila sp. nov., Ushaka philai sp. nov., Ibhulashi lakeside sp. nov., Umunwe ndabae sp. nov. e Segoko chueneorum sp. nov.. Oito gêneros são removidos de Macrobuninae e transferidos para outras subfamílias e/ou famílias. As mudanças taxonômicas apresentadas são corroboradas pela análise cladística. São apresentadas as primeiras descrições de machos de espécies de Hicanodon Tullgren, Yupanquia Lehtinen e Chresiona Simon. Anisacate fuegianum bransfield Usher é elevada a categoria de espécie, A. bransfield Usher stat. nov.. Emmenomma beauchenicum Usher é considerada sinônimo junior de E. oculatum. Emmenomma oculatum obscurum Simon é removida da sinonímia e elevada a categoria de espécie, Emmenomma obscurum Simon stat. nov.. Os espécimes-tipo de M. backhauseni são aqui considerados duas espécies diferentes e com base na fêmea uma espécie nova M. alejandrosanzi sp. nov. é descrita. A verdadeira fêmea de M. backhauseni (Simon) é descrita pela primeira vez. Outras mudanças taxonômicas proveniente do estudo dos espécimes-tipo incluem remover Notolathys Mello-Leitão da sinonímia com Auximella Strand e transferir Notolathys para sinônimo-junior de Retiro Mello-Leitão; sinonimizar Urepus Roth e Auximella; considerar Tymbira Mello-Leitão sinônimo-junior de Metaltella Mello-Leitão
20

Impact and Management of Twospotted Spider Mite in Pre-Flowering Cotton

Scott, William Sidney 12 May 2012 (has links)
Experiments were conducted to determine the impact of twospotted spider mite, Tetranychus urticae Koch, on cotton injury and yield. Artificial infestations were initiated at the three leaf stage of cotton growth and removed after specified durations of infestation. Yields were reduced for durations of infestation 21 days or greater. In a second experiment, the interactions between twospotted spider mite, thrips, at-planting insecticides, and foliar insecticides were studied to determine their impact on cotton yields. Twospotted spider mites and thrips reduced cotton yield. In a third experiment, twospotted spider mites were released from a central point in 0.024 hectare blocks of cotton and injury was recorded at various distances from that point. Injury was clearly visible seven meters from the infestation point within 16-28 days after infestation. Twospotted spider mites caused significant yield losses in cotton in all of these experiments.

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