A5104439373- Insect-Plant Interactions and Control
- Plant and animal studies
- Plant Parasitism and Resistance
- Forest Insect Ecology and Management
- Insect and Pesticide Research
- Insect symbiosis and bacterial influences
- Land Use and Ecosystem Services
- Insect behavior and control techniques
- Insect and Arachnid Ecology and Behavior
- Insect Pest Control Strategies
- Ecology and Vegetation Dynamics Studies
- Research on scale insects
- Agronomic Practices and Intercropping Systems
- Hymenoptera taxonomy and phylogeny
- Parasite Biology and Host Interactions
University of Wisconsin–Madison
2022-2024
University of Haifa
2012-2022
Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield-related services can be maintained by a few dominant species or rely on high richness remains unclear. Using database from 89 studies (with 1475 locations), we partition the relative importance of richness, abundance, dominance for pollination; biological pest control; final yields in context ongoing land-use change. Pollinator enemy directly supported...
Significance Decades of research have fostered the now-prevalent assumption that noncrop habitat facilitates better pest suppression by providing shelter and food resources to predators parasitoids crop pests. Based on our analysis largest pest-control database its kind, surrounding farm fields does affect multiple dimensions control, but actual responses pests enemies are highly variable across geographies cropping systems. Because often not enhance biological more information about local...
ABSTRACT Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield-related services can be maintained by few abundant species or rely on high richness remains unclear. Using a database from 89 systems, we partition the relative importance of abundance for pollination, biological pest control final yields in context on-going land-use change. Pollinator enemy directly supported independent abundance. Up 50%...
Liriomyza huidobrensis (Blanchard) is native to South America but has expanded its range and invaded many regions of the world, primarily on flowers a lesser extent horticultural product shipments. As result initial invasion into an area, damage caused usually significant not necessarily sustained. Currently, it economic pest in selected world. Adults cause by puncturing abaxial adaxial leaf surfaces for feeding egg laying sites. Larvae mine parenchyma tissues which can lead leaves drying...
Abstract Sugar from nectar or honeydew can prolong parasitoids’ lifespan, enhance their fecundity and foraging ability, thereby increase pest suppression efficiency. sources within crop monocultures are considered to be limiting for parasitoids. Nevertheless, only few studies have measured the sugar feeding of parasitoid assemblages in agricultural areas surrounding non‐crop habitats. We used cold anthrone tests compare frequency communities, inside pomegranate orchards adjacent natural...
When ecological and evolutionary dynamics occur on comparable timescales, persistence of the ensuing eco-evolutionary requires both stability. This unites key questions in ecology evolution: How do species coexist, what maintains genetic variation a population? In this work, we investigated host-parasitoid system which pea aphid hosts rapidly evolve resistance to
Agricultural habitats are frequently disturbed, and disturbances could have major effects on species in upper trophic levels such as hymenopteran parasitoids that important for biological control. A strategy conservation control is to provide a diversified agricultural landscape which increases the availability of resources sugar required by parasitoid agents. Here, we ask whether occurring agriculture benefit from more or less than natural surrounding fields. We collected alfalfa fields,...
Parasitoids that encounter a previously parasitized host inspect it externally and internally, sometimes eventually laying additional eggs (superparasitism). The fitness effects of increased clutch sizes generated through superparasitism are widely studied, whereas the consequences multiple probings during inspection received less attention. To address this issue, we offered to 1–5 females encyrtid wasp Copidosoma koehleri consecutively, or presented times single female. We noted whether...
Parasitoids are important natural enemies of many agricultural pests. Preserving habitats around fields may support parasitoid populations. However, the success such an approach depends on ability parasitoids to utilize both crop and habitats. While these aspects have been studied extensively in temperate regions, very little is known about communities desert agroecosystems. We took one step this direction by sampling six vineyards their surrounding habitat a hyper-arid region Negev Desert...
Abstract Life‐history traits are increasingly used to understand how arthropod communities assemble and function under diverse conditions, for example why some species better adapted agricultural intensification than others. We aimed which characterise parasitoid wasps disturbances. To this end, we studied from pomegranate orchards nearby natural habitats in Israel. Ten sites along a climate gradient were sampled thrice one fruit‐growing season. compiled information on life‐history...
Abstract BACKGROUND Mating disruption (MD) employs high doses of a pest's synthetic sex pheromone in agricultural plots, to interfere with its reproduction. MD is assumed have few behavioral effects on non‐target arthropods, because pheromones are highly species‐specific and non‐toxic. Nevertheless, some natural enemies use their host's as foraging cues, thus may be attracted plots. To investigate this hypothesis, we compared parasitoid spider assemblages paired plots five Israeli vineyards...
Abstract Natural enemies that can use multiple habitats are thought to better withstand disturbances in agricultural systems than natural habitat specialists. This is because generalists have populations serve as sources of immigrants into an crop following a disturbance. In contrast, the dynamics specialists tightly coupled with those one crop. Nonetheless, some successful highly disturbed environments. To test how magnitude within‐field disturbance affects biological control agents, we...
Abstract Maladaptive behaviors reflecting a “bad” choice of habitat or resource have been widely documented; however, their persistence is often difficult to interpret. The potter wasp Delta dimidiatipenne constructs mud cells, in each which it lays single egg and places several caterpillars feed its offspring. Preliminary observations indicated that portion these were already parasitized contained the offspring gregarious parasitoid Copidosoma primulum . As result, failed develop. To...
Abstract The enemy release hypothesis, that the success of invading species is due to from natural enemies occur in their home range but not new range, can be an important explanation for successful invasions. Testing this hypothesis difficult, however, because testing requires documented cases only successful, also unsuccessful Therefore, observational data on after-the-fact establishment following unintentional introductions insufficient, they include Here, we investigate role parasitoid...
1. Life‐history theory predicts a trade‐off between the resources allocated to reproduction and those survival. Early maturation of eggs (pro‐ovigeny) is correlated with small body size low adult longevity in interspecific comparisons among parasitoids, demonstrating this trade‐off. The handful studies that have tested for similar correlations within species produced conflicting results. 2. Egg patterns related life‐history traits were studied polyembryonic parasitoid wasp, C opidosoma...