Accedi

Bibliografie tematiche / Predatory arthropod

Indice

Articoli di riviste
Tesi
Libri
Capitoli di libri
Atti di convegni

Letteratura scientifica selezionata sul tema "Predatory arthropod"

Autore: Grafiati

Pubblicato: 10 dicembre 2022

Ultima modifica: 28 gennaio 2023

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Predatory arthropod".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Predatory arthropod"

1

Stewart, Colin D., S. Kristine Braman e Beverly L. Sparks. "Abundance of Beneficial Arthropods on Woody Landscape Plants at Professionally-Managed Landscape Sites". Journal of Environmental Horticulture 20, n. 2 (1 giugno 2002): 67–72. http://dx.doi.org/10.24266/0738-2898-20.2.67.

Testo completo

Abstract (sommario):

Abstract Eight 0.2–0.4 ha (0.5–1.0 A) sites managed by landscape professionals were monitored biweekly for beneficial arthropod activity. More than 30 generalist predator taxa were identified. Spiders and green lacewings were the most numerous taxa and both were found on all plant taxa sampled. Green lacewings, especially the egg stage, were the most numerous natural enemies detected on birch, crape myrtle, cherry, and oak trees accounting for 52.5, 49.9, 43.5, and 38.1%, respectively. Spiders accounted for 56.2% of the insectivorous arthropods observed on magnolia and were the most abundant predatory arthropod on azaleas comprising 46.5% of all arthropod predators/parasites across all properties. The most abundant predatory arthropods on junipers were spiders accounting for 75.5% of the beneficials encountered with ants (associated with an early season aphid outbreak), green lacewing larvae, lady beetles, harvestmen, and parasitic wasps comprising 15.8, 0.4, 4.3, 0.4, and 1.2%, respectively. Spiders were the most abundant predators on boxwood accounting for 70.6% of the natural enemies.

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Stevenson, Misty, Kalynn L. Hudman, Alyx Scott, Kelsey Contreras e Jeffrey G. Kopachena. "High Survivorship of First-Generation Monarch Butterfly Eggs to Third Instar Associated with a Diverse Arthropod Community". Insects 12, n. 6 (21 giugno 2021): 567. http://dx.doi.org/10.3390/insects12060567.

Testo completo

Abstract (sommario):

Based on surveys of winter roost sites, the eastern migratory population of the monarch butterfly (Danaus plexippus) in North America appears to have declined in the last 20 years and this has prompted the implementation of numerous conservation strategies. However, there is little information on the survivorship of first-generation monarchs in the core area of occupancy in Texas, Oklahoma, and Louisiana where overwinter population recovery begins. The purpose of this study was to determine the survivorship of first-generation eggs to third instars at a site in north Texas and to evaluate host plant arthropods for their effect on survivorship. Survivorship to third instar averaged 13.4% and varied from 11.7% to 15.6% over three years. The host plants harbored 77 arthropod taxa, including 27 predatory taxa. Despite their abundance, neither predator abundance nor predator richness predicted monarch survival. However, host plants upon which monarchs survived often harbored higher numbers of non-predatory arthropod taxa and more individuals of non-predatory taxa. These results suggest that ecological processes may have buffered the effects of predators and improved monarch survival in our study. The creation of diverse functional arthropod communities should be considered for effective monarch conservation, particularly in southern latitudes.

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Legg, David A., Mark D. Sutton, Gregory D. Edgecombe e Jean-Bernard Caron. "Cambrian bivalved arthropod reveals origin of arthrodization". Proceedings of the Royal Society B: Biological Sciences 279, n. 1748 (10 ottobre 2012): 4699–704. http://dx.doi.org/10.1098/rspb.2012.1958.

Testo completo

Abstract (sommario):

Extant arthropods are diverse and ubiquitous, forming a major constituent of most modern ecosystems. Evidence from early Palaeozoic Konservat Lagerstätten indicates that this has been the case since the Cambrian. Despite this, the details of arthropod origins remain obscure, although most hypotheses regard the first arthropods as benthic predators or scavengers such as the fuxianhuiids or megacheirans (‘great-appendage’ arthropods). Here, we describe a new arthropod from the Tulip Beds locality of the Burgess Shale Formation (Cambrian, series 3, stage 5) that possesses a weakly sclerotized thorax with filamentous appendages, encased in a bivalved carapace, and a strongly sclerotized, elongate abdomen and telson. A cladistic analysis resolved this taxon as the basal-most member of a paraphyletic grade of nekto-benthic forms with bivalved carapaces. This grade occurs at the base of Arthropoda (panarthropods with arthropodized trunk limbs) and suggests that arthrodization (sclerotization and jointing of the exoskeleton) evolved to facilitate swimming . Predatory and fully benthic habits evolved later in the euarthropod stem-lineage and are plesiomorphically retained in pycnogonids (sea spiders) and euchelicerates (horseshoe crabs and arachnids).

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Anggraini, Erise, Roy Pardingotan, Siti Herlinda, Chandra Irsan e Muhammad Umar Harun. "Diversity of Predatory Arthropods in Soybean (Glycine max L) Refugia". Journal of Applied Agricultural Science and Technology 4, n. 2 (31 agosto 2020): 101–17. http://dx.doi.org/10.32530/jaast.v4i2.165.

Testo completo

Abstract (sommario):

Many problems arise in the cultivation of crops; one of these problems is insect pests that can threaten crop production. Integrated pest management is an alternative technique for managing the balance of the agricultural environment. Habitat manipulation by increasing plant diversity with refugia is considered an alternative way to maintain natural enemy in an agro ecosystem. The use of soybean as a refugium in a crop field is still limited. Research was conducted to investigate the diversity of predatory arthropods in soybean as a refugium in a chilli pepper crop field at the Agro-technology Training Centre (ATC) at the University of Sriwijaya. In this study, four varieties of soybean (Dena 1, Detam 3 PRIDA, Deja 1, and Devon 1) were used as refugia. Three observation methods were carried out using nets, pitfall traps and visual observation for 7 weeks. The results show that arthropod diversity in soybean plants comprised 6 orders with 10 families and 19 species. Odontoponera denticulata (Hymenoptera) was the most predominant arthropod predator, observed in 73% of all soybean varieties. The number of canopy-dwelling arthropod predators was similar in the four soybean varieties.

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Chan, Eric K. W., Yixin Zhang e David Dudgeon. "Arthropod 'rain' into tropical streams: the importance of intact riparian forest and influences on fish diets". Marine and Freshwater Research 59, n. 8 (2008): 653. http://dx.doi.org/10.1071/mf07191.

Testo completo

Abstract (sommario):

Terrestrial arthropods might represent an important energy source for stream predators, but these trophic linkages have seldom been studied in the tropics. Terrestrial arthropod inputs (essentially, arthropod ‘rain’) into four streams with different riparian vegetation (two draining shrublands and two draining forests) were measured over three consecutive seasons (dry, wet, dry) from 2005 to 2007 in monsoonal Hong Kong. Predatory minnows, Parazacco spilurus (Cyprinidae), were collected and their consumption of terrestrial arthropods was estimated. Inputs of arthropods were dominated by Diptera, Collembola, Formicidae and aerial Hymenoptera, accounting for ≥73% of the arthropod abundance. Seasonal variation was marked: numbers in the dry seasons were approximately half (47–57%) those in the wet season, and biomass fell to one-third (33–37%) of the wet-season value. Shrubland streams received 19–43% fewer individuals and 6–34% less biomass than shaded forest streams. An analysis of fish diets in three of the four streams showed that terrestrial insects and spiders were more important prey in the two forest streams, accounting for 35–43% of prey abundance (39–43% by volume) v. 28% (27%) in the shrubland stream. Because riparian vegetation is the source of terrestrial arthropod inputs to streams, degradation of streamside forests that reduce these inputs will have consequences for the diets of stream fishes.

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Gossler, Odair Santos, Denise Lange e Wedson Desidério Fernandes. "Can the absence of ants interfere in the arthropods abundance on corn plants (Zea mays L. - Poaceae)?" Comunicata Scientiae 8, n. 1 (6 aprile 2017): 9. http://dx.doi.org/10.14295/cs.v8i1.1730.

Testo completo

Abstract (sommario):

Alternative methods to reduce the chemical control in monoculture have been widely assessed in order to diminish the pesticide use. Thus, the efficiency of predator arthropods who work as population controllers in many agro-ecosystems has been tested. The current study aim to verify if the presence of ants interfere in the amount of arthropod herbivores and predators on corn plants, Zea mays L. (Poaceae). A total of 100 plants were assessed, out of them, 50 were isolated from ants and the other 50 were not. There were 25 taxa of arthropods on corn plants, in which 14 were herbivorous and 11 predators. The ants’ free access to the plants negatively influenced the Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae) amount, which is an important herbivorous plague in corn monoculture. It was also observed the greater amount of Doru sp.1 (Dermaptera: Forficulidae) on plants containing ants. Considering the assessed plants, the presence of ants did not influenced the abundance of other arthropods. These results suggest that the ant-plant-herbivore interactions in corn monoculture is a complex system, and the presence of predatory ants in plants not always influence the presence of other arthropods.

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Meidalima, Dewi, Ruarita Ramadhalina Kawaty e Erlan B. Gunawan. "DIVERSITY OF ARTHROPOD PREDATOR IN SWAMP RICE FIELDS IN SOUTH SUMATERA". JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA 18, n. 2 (25 marzo 2019): 112. http://dx.doi.org/10.23960/j.hptt.218112-118.

Testo completo

Abstract (sommario):

The abundance and diversity of arthropod in agro ecosystem depend on the level of synthetic pesticide contamination. This study aimed to explore, identify and analyze the diversity and abundance of predatory arthropods in swamp rice fields treated with pesticide application (in Pemulutan) and without pesticide application (in Musi 2). The swamp rice fields in Pemulutan are bordered by village, river and forest. The methods were survey and direct observation on 3 ha and 2 ha of swamp rice fields in Pemulutan and Musi 2, Palembang. Sampling of predatory arthropods were conducted at 20, 50, 80 and 110 days after rice planting using pitfall trap. Identification of predatory arthropods was conducted at Laboratory of Entomology showing that the arthropod collected consisted of 17 species of insects and 9 species of Arachnida. In Pemulutan Ogan Ilir were found 19 species (10 species of insect and 9 species of Arachnida) at the village area. In the area that was bordered by river were found 8 species (7 insect and 1 Arachnida). In the area bordered by forest were found 22 species (10 species of insects and 12 species of Arachnida). The diversity level, number of species, and arthropod specimen in the field without pesticide application at Musi 2 were higher than those in the fields with pesticide application in Pemulutan.

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Svobodová, Zdeňka, Yinghua Shu, Oxana Skoková Habuštová, Jörg Romeis e Michael Meissle. "Stacked Bt maize and arthropod predators: exposure to insecticidal Cry proteins and potential hazards". Proceedings of the Royal Society B: Biological Sciences 284, n. 1859 (19 luglio 2017): 20170440. http://dx.doi.org/10.1098/rspb.2017.0440.

Testo completo

Abstract (sommario):

Genetically engineered (GE) crops with stacked insecticidal traits expose arthropods to multiple Cry proteins from Bacillus thuringiensis (Bt). One concern is that the different Cry proteins may interact and lead to unexpected adverse effects on non-target species. Bi- and tri-trophic experiments with SmartStax maize, herbivorous spider mites ( Tetranychus urticae ), aphids ( Rhopalosiphum padi ), predatory spiders ( Phylloneta impressa ), ladybeetles ( Harmonia axyridis ) and lacewings ( Chrysoperla carnea ) were conducted. Cry1A.105, Cry1F, Cry3Bb1 and Cry34Ab1 moved in a similar pattern through the arthropod food chain. By contrast, Cry2Ab2 had highest concentrations in maize leaves, but lowest in pollen, and lowest acquisition rates by herbivores and predators. While spider mites contained Cry protein concentrations exceeding the values in leaves (except Cry2Ab2), aphids contained only traces of some Cry protein. Predators contained lower concentrations than their food. Among the different predators, ladybeetle larvae showed higher concentrations than lacewing larvae and juvenile spiders. Acute effects of SmartStax maize on predator survival, development and weight were not observed. The study thus provides evidence that the different Cry proteins do not interact in a way that poses a risk to the investigated non-target species under controlled laboratory conditions.

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Clark, Robert E., e Chad L. Seewagen. "Invasive Japanese Barberry, Berberis thunbergii (Ranunculales: Berberidaceae) Is Associated With Simplified Branch-Dwelling and Leaf-Litter Arthropod Communities in a New York Forest". Environmental Entomology 48, n. 5 (28 agosto 2019): 1071–78. http://dx.doi.org/10.1093/ee/nvz095.

Testo completo

Abstract (sommario):

Abstract Arthropod food webs can be indirectly impacted by woody plant invasions, with cascading consequences for higher trophic levels. There are multiple bottom-up pathways by which invasive plants can alter food webs: above-ground interactions based on plant-herbivore associations and below-ground at the interface of leaf-litter and soil food webs. We compared arthropod community composition in these two food web dimensions in a New York forest that has been heavily invaded by nonnative Japanese barberry. Using two sampling protocols, we compared arthropod community composition on Japanese barberry shrubs to multiple species of native host shrubs and then compared leaf-litter arthropod assemblages between forest patches with exceptionally high Japanese barberry densities and those with relatively little to no Japanese barberry present. Fitting with trends in other woody shrub invasions, arthropod species richness was significantly lower in the leaf litter around Japanese barberry and on Japanese barberry plants themselves. Although overall arthropod abundance was also significantly lower on and in the leaf litter around Japanese barberry than on and around native shrubs, total biomass did not differ due to the taxa associated with Japanese barberry tending to be larger-bodied. We observed a dramatic reduction in predatory arthropods in response to both bottom-up pathways, particularly among ants and spiders. Our results show that Japanese barberry-invaded habitats may be experiencing trophic downgrading as result of lower numbers of generalist predators like spiders and ants, which may have rippling effects up the food web to insectivorous animals and their predators.

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Wenninger, Erik J., Jessica R. Vogt, Jeffrey Lojewski, Oliver T. Neher, Don W. Morishita e Kristin E. Daku. "Effects of Strip Tillage in Sugar Beet on Density and Richness of Predatory Arthropods". Environmental Entomology 49, n. 1 (15 dicembre 2019): 33–48. http://dx.doi.org/10.1093/ee/nvz135.

Testo completo

Abstract (sommario):

Abstract Strip tillage, in which tillage and seedbed preparation are limited to a narrow band where the subsequent crop is planted, provides many potential agronomic benefits, including reduced fuel and labor costs, reduced erosion, and improved soil tilth. Lower soil disturbance and enhanced water retention associated with strip tillage also may affect density and diversity of predatory arthropods, which have been little studied in sugar beet. We examined the effects of tillage (conventional versus strip) on the predatory epigeal arthropod fauna in sugar beet. Studies were conducted over three growing seasons (2010–2012) in Idaho using both fenced and unfenced pitfall traps to sample arthropods. Unfenced pitfall traps often captured a greater activity density and richness of predators, and showed no bias of higher captures in conventionally tilled plots as has been shown elsewhere. Total density of predators was higher in strip tillage only during 2011. Density and species richness of carabid beetles did not differ between tillage treatments during the course of the study. Density of the other major taxa (staphylinid beetles, spiders, and Opiliones) was higher under strip tillage during some years, especially early in the season, but richness showed little or no relationship with tillage. Predaceous arthropods might be favored by enhanced ground cover, higher humidity, more moderate temperatures, and/or less habitat disturbance associated with strip-tilled plots. The results suggest that certain groups of soil-dwelling predatory arthropods can be favored by strip tillage in sugar beet, which further adds to the benefits of conservation tillage in this system.

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Tesi sul tema "Predatory arthropod"

1

Dieterich, Mabin Molly E. "Effects of conservation biological control practices on predatory arthropod assemblages and molecular identification of cucumber beetle biological control agents". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492531428052099.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Li, Yunhe. "Ecological risks of insecticidal transgenic crops on arthropod predators /". [S.l.] : [s.n.], 2009. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Omena, Paula Munhoz 1982. "Effects of predators on bromeliad-aquatic arthropod communities and ecosystem functioning". [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315725.

Testo completo

Abstract (sommario):

Orientador: Gustavo Quevedo Romero
Texto em português e inglês
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-08-24T16:18:04Z (GMT). No. of bitstreams: 1 Omena_PaulaMunhoz_D.pdf: 3562543 bytes, checksum: 5d44970e0b040040755da9a84ed62a42 (MD5) Previous issue date: 2014
Resumo: Com a intensificação das transformações dos sistemas naturais pela atividade humana, o entendimento dos processos que afetam as comunidades e o funcionamento dos ecossistemas tornou-se um tema central para a ecologia contemporânea. As interações entre as espécies, bem como as interações entre as espécies e os componentes abióticos do meio ambiente, afetam tanto os padões de diversidade biológica como funções ecossistêmicas. Neste trabalho, buscou-se compreender o papel relativo das interações predador-presa e dos componentes abióticos sobre as propriedades das comunidades e funcionamento dos ecossistemas. No primeiro capítulo, investiguei o papel do tamanho do habitat sobre os efeitos de predadores terrestres na estrutura de comunidades e funcionamento de ecossistemas adjacentes. O tamanho do habitat modera cascatas tróficas dentro de ecossistemas, deste modo, esperei que efeitos similares do tamanho do habitat poderiam afetar cascatas tróficas que ocorrem através dos limites dos ecossistemas. No segundo capítulo, explorei predições relacionadas a variação no formato de pirâmides tróficas de biomassa ao longo de gradientes ambientais (tamanho do habitat, concentração de detritos e produtividade). Além disso, investiguei a contribuição relativa dos efeitos de consumo direto e do risco de predação nas interações predador-presa como mecanismos estruturadores de pirâmides tróficas de biomassa. No terceiro capítulo, tive como objetivo investigar os efeitos de dois extremos de um gradiente ambiental e os efeitos de predadores sobre os componentes da diversidade de presas detritívoras (i.e., diversidade funcional, filogenética e taxonômica). Além disso, explorei o papel relativo do ambiente, dos predadores e dos componentes da diversidade sobre o funcionamento ecossistêmico (i.e., decomposição e fluxo de nitrogênio). Os resultados encontrados nos três capítulos demonstram que fatores abióticos são cruciais na determinação das propriedades das comunidades, interações predador-presa e, consequentemente, no funcionamento ecossistêmico. O papel relativo dos efeitos cascatas de predadores é altamente dependente das condições ambientais que medeiam as interações entre predadores e presas
Abstract: In the face of the increasing transformation of environmental conditions by human activity, understanding the processes that affect communities and ecosystem functioning has become fundamental goals in ecology. The interactions between coexisting species and, their interactions with the abiotic components of environment, affect the patterns of biological diversity and functions of ecosystems. In this study, I sought to understand the relative role of predator-prey interactions and of abiotic factors on the communities¿ properties and ecosystem functioning. In the first chapter, I investigated the role of habitat size in mediating the effects of terrestrial predators on the structure of communities and the functioning of adjacent ecosystems. Habitat size mediated trophic cascades within ecosystems; therefore, I expected that similar effects of habitat size affect cross-ecosystem trophic cascades. In the second chapter, I explored predictions related to the variation of trophic pyramids of biomass across environmental gradients (i.e., habitat size, detritus concentration and productivity). Furthermore, I investigated the relative contribution of consumptive and non-consumptive effects of predators on the shape of trophic pyramids of biomass. In the third chapter, I sought to investigate the effects of two extremes of an environmental gradient and the effects of predators on the components of detritivores diversity (i.e., functional, phylogenetic and taxonomic). Moreover, I explored the relative role of environment, predators and detritivore diversity components on the functioning of ecosystems (i.e., detritus processing and nitrogen flux). The results from this study demonstrated that abiotic factors are crucial determinants of community properties, predator-prey interactions and ecosystem functioning. The relative role of the predators cascading effects are strongly dependent on the environmental conditions which mediate the interactions between predators and prey
Doutorado
Ecologia
Doutora em Ecologia

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Prasifka, Jarrad Reed. "The role of grain sorghum in conservation of predatory arthropods of Texas cotton". [College Station, Tex. : Texas A&M University, 2004. http://hdl.handle.net/1969.1/504.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Gómez, Polo Priscila. "Molecular identification and feeding ecology of arthropod generalist predators present in Mediterranean lettuce crops". Doctoral thesis, Universitat de Lleida, 2014. http://hdl.handle.net/10803/285489.

Testo completo

Abstract (sommario):

The aphid Nasonovia ribisnigri (Hemiptera: Aphididae) and the thrips Frankliniella occidentalis (Thysanoptera: Thripidae) are two of the main pests in Mediterranean lettuce crops. The general goal of this Doctoral Thesis is to deepen in the study of the trophic interactions present in Mediterranean lettuce crops, in order to develop, apply and improve conservation biological control (CBC) programs using molecular techniques. Results showed the most abundant predator were Orius laevigatus, O. majusculus and O. niger (Hemiptera: Anthocoridae), the hoverflies Eupeodes corollae, Episyrphus balteatus and Sphaerophoria scripta/S. rueppellii (Diptera: Syrphidae), the coccinelid Coccinella septempunctata (Coleoptera : Coccidellidae) and spiders (Araneae: Linyphiidae, Thomosidae). Moreover, coccinellids were only found in spring, syrphids mainly in spring, but also in summer and Orius were only found in summer. With these abundances, the coccinellids were the most efficient predators of N. ribisnigri in spring; syrphids were the most efficient predators of F. occidentalis in spring; and Orius were the most efficient control agents of F. occidentalis in summer. In conclusion, molecular analysis of predation has allowed the characterization of the trophic links present in Mediterranean lettuce crops, which is of a great importance in order to develop CBC programs in those crops.
El pulgón Nasonovia ribisnigri ( Hemiptera: Aphididae ) y el trips Frankliniella occidentalis (Thysanoptera: Thripidae) son dos de las principales plagas en cultivos de lechuga mediterráneos. El objetivo general de esta Tesis Doctoral es profundizar en el estudio de las interacciones tróficas presentes en cultivos de lechuga mediterráneos, con el fin de desarrollar, aplicar y mejorar programas de control biológico (CB) por conservación mediante métodos moleculares. Los resultados mostraron que los depredador más abundantes fueron Orius laevigatus, O. majusculus y O. níger (Hemiptera: Anthocoridae ), los sírfidos Eupeodes corollae , Episyrphus balteatus y Sphaerophoria scripta / S. rueppellii (Diptera: Syrphidae), el coccinélido Coccinella septempunctata (Coleoptera : Coccidellidae) y arañas (Araneae: Linyphiidae, Thomosidae). Además los coccinélidos se encontraron sólo en primavera, los sírfidos principalmente en primavera, aunque también en verano y los Orius sólo en verano. Con estas abundancias, los coccinélidos fueron los depredadores más eficientes de N. ribisnigri en primavera; los sírfidos fueron los depredadores más eficientes de F. occidentalis en primavera; y Orius fueron los agentes de control más eficiente de F. occidentalis en verano. En resumen, los análisis moleculares de depredación han permitido la caracterización de las relaciones tróficas presentes en cultivos de lechuga del Mediterráneo, lo cual es de gran importancia para el desarrollo de programas de CB de este cultivo en esta zona.
El pugó Nasonovia ribisnigri (Hemiptera : Aphididae) i el trips Frankliniella occidentalis (Thysanoptera : Thripidae) són dues de les principals plagues en cultius d'enciam mediterranis . L'objectiu general d'aquesta Tesi Doctoral és aprofundir en l'estudi de les interaccions tròfiques presents en cultius d'enciam mediterranis , per tal de desenvolupar , aplicar i millorar programes de control biològic (CB) per conservació . Els resultats van mostrar que els tàxons de depredador més abundants van ser Orius laevigatus , O. majusculus i O. níger (Hemiptera : Anthocoridae), els sírfids Eupeodes corollae , Episyrphus balteatus i Sphaerophoria scripta / S. rueppellii (Diptera : Syrphidae), el coccinélid Coccinella septempunctata (Coleoptera : Coccidellidae) i aranyes (Araneae: Linyphiidae, Thomosidae). A més els coccinélidos es van trobar només a la primavera , els sírfids principalment a la primavera , encara que també a l'estiu i els Orius només a l'estiu . Amb aquestes abundàncies , els coccinélidos van ser els depredadors més eficients de N. ribisnigri a la primavera ; els sírfids van ser els depredadors més eficients de F. occidentalis a la primavera ; i Orius van ser els agents de control més eficient de F. occidentalis a l'estiu.En resum, les anàlisis moleculars de depredació han permès la caracterització de relacions tròfiques presents en cultius d'enciam de la Mediterrània la qual cosa és de gran importància per al desenvolupament de programes de CB d'aquest cultiu a la zona estudiada.

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Collins, Katherine Lucy. "The effect of habitat creation for predatory arthropods on aphid populations in winter wheat". Thesis, Open University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298183.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Dunkley, Felicity Ann. "Management options for hedgerow vegetation : combining weed control with habitat improvement for predatory arthropods". Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241946.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Chapman, Paul. "Short-term effects of vegetation management on epigeal predatory arthropods in organic farming systems". Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU094109.

Testo completo

Abstract (sommario):

Predatory arthropods such as carabid beetles and spiders are generally thought to be favoured by crop management that results in dense vegetation. In grassland, silage production increases vegetarian density compared to grazed grass but involves disturbance from cutting, while intercropping with clover increases the vegetation density of vegetable crops, but causes yield loss through interspecific competition. The first part of this thesis compares the predatory arthropod fauna of silage with grazed grass. There were small differences between the carabid assemblages of the two habitats before the first silage cut, when the contrast between silage and grazed grass was greatest, and a general reduction in species richness following silage cutting. However, the responses of individual species varied greatly. Agonum muelleri and Calathus fuscipes were associated with grazing management, but no species were consistently favoured by silage production. For Loricera pilicornis, this may have been due to cool weather creating similar conditions in silage and grazed grass, while for Nebria brevicollis, which was susceptible to disturbance, the timing of cutting determined its distribution. Spiders showed a more uniform association with structurally complex vegetation and were thus generally found in higher numbers under silage management. The second part of the thesis investigates daily movements of predatory arthropods between dense vegetation, such as clover intercropped vegetables, and adjacent open, weeded crops. The results suggested that nocturnal carabids and spiders of the genus Erigone sheltered in dense vegetation by day and moved into the open at night. Thus intercropping only parts of a vegetable crop would enhance predatory arthropod activity throughout the crop, while reducing interspecific competition. These results showed that the relationship between increased vegetation density and predatory arthropod activity is less important in the habitats studied than other factors, such as disturbance and daily movements in determining the distribution of these animals.

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Lecq, Stéphane. "Importance de la structure des haies, des lisières, et de la disponibilité en abris sur la biodiversité, implications en termes de gestion". Phd thesis, Université de Poitiers, 2013. http://tel.archives-ouvertes.fr/tel-00938190.

Testo completo

Abstract (sommario):

Au cours des dernières décennies, d'énormes quantités de haies, de lisières ont été détruites en Europe tandis que le régime des incendies majeurs augmente dans les milieux méditerranéens. La perte de ces milieux de type lisières s'accompagne d'une chute catastrophique de la biodiversité. Notamment par la perte des refuges disponibles pour la faune. Cette thèse s'intéresse à l'importance des abris à différentes échelles et sur différents modèles biologiques. Premièrement, l'influence de la disponibilité en abris au pied des haies sur la biodiversité a été démontrée à l'aide d'inventaires et grâce à une expérimentation sur le terrain. Pour cela, une nouvelle approche d'inventaire qui combine les avantages des inventaires rapides et des techniques non létales a été mise au point. A une échelle intermédiaire, l'impact positif de l'ouverture du milieu forestier sur des populations de reptiles a été mis en évidence. Enfin, un suivi au niveau individuel de tortues d'Hermann a permis de suivre les conséquences de modifications l'habitat suite à un incendie majeur ; il suggère que les habitats brûlés restent favorables sur le long terme. En conclusion, l'importance des abris pour la biodiversité a été démontrée à plusieurs échelles d'espace, de temps et de précision. La conséquence pratique est que les fiches techniques de gestion des haies et des lisières devraient en tenir compte, ce qui n'est pas le cas actuellement.

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Attah, P. K. "The insect pests and polyphagous arthropod predators associated with crops of oilseed rape in North Yorkshire and Humberside". Thesis, University of York, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373304.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Libri sul tema "Predatory arthropod"

1

1945-, Evans David L., e Schmidt Justin O. 1947-, a cura di. Insect defenses: Adaptive mechanisms and strategies of prey and predators. Albany: State University of New York Press, 1990.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Barrett, Norman S. Poisonous insects. New York: F. Watts, 1991.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Invasive Alien Arthropod Predators And Parasitoids An Ecological Approach. Springer, 2011.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Roy, Helen, Eric Wajnberg, Patrick De Clercq, Lori-Jayne Lawson Handley, John J. Sloggett e Remy L. Poland. Invasive Alien Arthropod Predators and Parasitoids: An Ecological Approach. Springer, 2013.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Pappas, Maria L., George D. Broufas, Alberto Pozzebon, Carlo Duso e Felix Wäckers, a cura di. Ecosystem Services and Disservices Provided by Plant-Feeding Predatory Arthropods. Frontiers Media SA, 2020. http://dx.doi.org/10.3389/978-2-88963-299-2.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Wheeler, Alfred G. Biology of the Plant Bugs (Hemiptera : Miridae): Pests, Predators, Opportunists (Cornell Series in Arthropod Biology). Comstock Publishing, 2001.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Shattuck, S. Australian Ants. CSIRO Publishing, 1999. http://dx.doi.org/10.1071/9780643100671.

Testo completo

Abstract (sommario):

Ants are one of the most influential elements in Australian ecosystems, having a major impact on plant growth and reproduction, and soil structure. They act as predators and competitors of other arthropods, and are an important food source for other animals. The book provides details on separating genera from those which are superficially similar and those which are commonly confused. The distribution, habitat preferences and general biologies of each genus are discussed, and there is an introduction to the more important research papers investigating each group.

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Bittleston, Leonora S. Commensals of Nepenthes pitchers. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198779841.003.0023.

Testo completo

Abstract (sommario):

Carnivorous Nepenthes pitcher plants contain aquatic ecosystems within each fluid-filled pitcher. Communities of arthropods and microbes colonize pitcher pools, and some organisms are endemic to the pitcher habitat. Flies and mites are the most apparent colonizers, and together with numerous protists, fungi, and bacteria, they form a food web of predators, decomposers, and primary producers. Bacterial diversity and composition are correlated strongly with fluid pH. Closely related organisms co-occur within pitchers, suggesting that competition is not the primary structuring force of pitcher communities. Pitchers are ephemeral habitats when compared with surrounding soil, and the former communities have fewer organisms and are less predictable than the latter. It is still unknown to what extent pitcher plants and their inhabitants influence one another’s fitness.

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Beehag, Gary, Jyri Kaapro e Andrew Manners. Pest Management of Turfgrass for Sport and Recreation. CSIRO Publishing, 2016. http://dx.doi.org/10.1071/9781486305759.

Testo completo

Abstract (sommario):

Vital for a game of cricket or golf and enjoyable when picnicking in the park, turfgrass provides a wide range of aesthetic and recreational benefits. However, managed turfgrass is prone to damaging outbreaks of insects and mites. Pest Management of Turfgrass for Sport and Recreation is the first comprehensive work on the plant-eating insects and mites of the grass and non-grass species currently maintained as ornamental lawns and turfgrass playing surfaces throughout Australia, the South Pacific and South-East Asia. This book provides an industry reference for the identification of pests affecting the roots, stems and leaves of turfgrass and control of these species through integrated pest management. It contains information on the distribution, ecology and biology of pests and how to monitor them. The integrated pest management approach outlined in the book includes natural environmental controls, beneficial and predatory species of arthropods, resistant cultivars and insecticidal and miticidal pesticides. Pest Management of Turfgrass for Sport and Recreation is an essential manual for managers of sportsgrounds, bowling greens, lawn tennis courts, golf courses, racecourses, ornamental landscapes, amenity parklands, public reserves and turfgrass production farms.

Gli stili APA, Harvard, Vancouver, ISO e altri

Capitoli di libri sul tema "Predatory arthropod"

1

Sabelis, Maurice W., Arne Janssen, Jan Bruin, Frank M. Bakker, Bas Drukker, Petru Scutareanu e Paul C. J. van Rijn. "Interactions between arthropod predators and plants: A conspiracy against herbivorous arthropods?" In Ecology and Evolution of the Acari, 207–29. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1343-6_15.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Van Driesche, Roy G., e Thomas S. Bellows. "Biology of Arthropod Parasitoids and Predators". In Biological Control, 309–36. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1157-7_15.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Van Driesche, Roy G., e Thomas S. Bellows. "Parasitoids and Predators of Arthropods and Molluscs". In Biological Control, 37–65. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1157-7_3.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Stanley, Johnson, e Gnanadhas Preetha. "Pesticide Toxicity to Arthropod Predators: Exposure, Toxicity and Risk Assessment Methodologies". In Pesticide Toxicity to Non-target Organisms, 1–98. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7752-0_1.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Geden, C. J. "Coleopteran and Acarine Predators of House Fly Immatures in Poultry Production Systems". In Biocontrol of Arthropods Affecting Livestock and Poultry, 177–200. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9780429043338-14.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Ho, Chyi-Chen, Harvey L. Cromroy e Richard S. Patterson. "Mass Production of the Predaceous Mite, Macrocheles muscaedomesticae (Scopoli) (Acarina: Macrochelidae), a Predator of the House Fly". In Biocontrol of Arthropods Affecting Livestock and Poultry, 201–13. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9780429043338-15.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Binisha, K. V., Haseena Bhaskar e Sosamma Jacob. "Diversity of Mites on Vegetable Crops, Kerala, South India: Documentation for Conserving Predatory and Other Beneficial Mites on Vegetables". In Economic and Ecological Significance of Arthropods in Diversified Ecosystems, 257–69. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1524-3_13.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Dawes-Gromadzki, Tracy. "Preliminary analyses of the responses of a semi-arid arthropod community to predator and nutrient manipulations". In The Other 99%: The Conservation and Biodiversity of Invertebrates, 60–67. P.O. Box 20, Mosman NSW 2088, Australia: Royal Zoological Society of New South Wales, 1999. http://dx.doi.org/10.7882/rzsnsw.1999.012.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Perring, T. M., e J. A. McMurtry. "Chapter 2.3 Other predatory arthropods". In World Crop Pests, 471–79. Elsevier, 1996. http://dx.doi.org/10.1016/s1572-4379(96)80029-7.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Kendall, David. "Soil Tillage and Epigeal Predatory Arthropods". In Advances in Agroecology. CRC Press, 2002. http://dx.doi.org/10.1201/9781420040609.ch11.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Predatory arthropod"

1

Dieterich Mabin, Molly E. "Molecular identification of arthropod predators of cucumber beetles". In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.115066.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Goldmann, Aviva. "Arthropod predators of Asian citrus psyllid (Diaphorina citri) in southern California". In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.115494.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Liu, Chenying, Zhong You e Perla Maiolino. "Kinematics of an Origami Inspired Millipede Robot". In ASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/detc2022-88998.

Testo completo

Abstract (sommario):

Abstract A millipede is a worm-like arthropod with a relatively hard exoskeleton, a segmented body, and numerous pairs of legs. Its appendage helps to coordinate the behaviour of multiple body segments to generate a peristaltic wave, so that efficient locomotion can be achieved on uneven surfaces and limited space. When sensing danger or disturbed, the millipede curls up into a coil shape to protect itself against predators. The curling behaviour of a millipede has also been found in some of its close relatives in the arthropod family, such as pill bugs and lobsters. Inspired by its peristaltic and curling behaviours, we propose an origami-based concept for a robot that imitates the motion of a millipede. The mechanism is made with a chain of interlinked modules, mimicking the segments in a millipede. Each module is an assembly of rigid facets with a uniform and finite thickness, reducing the overall degrees of freedom (DoF) to a manageable number. Given its unique geometric design, the assembly can contain any number of modules without an excessively large DoF. Its curling and peristaltic motions are quantified kinematically in the paper, which paves the way for the millipede robot design with actuation and control components integrated. In addition, a few other configurations of the proposed origami mechanism and its geometric variants are presented, thus opening up design space for other possible applications.

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!