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Introduction
Hello! I’m Joana P. Haedo, a Doctor in Biology and postdoctoral fellow at CONICET, Argentina.
My research focuses on enhancing crop pollination by studying wild and managed pollinators. During my PhD, I identified the most effective wild pollinators of alfalfa in Argentina and compared them with managed ones. Currently, I’m developing strategies that combine both to optimize pollination services and promote sustainable agricultural practices.
Publications
Publications (15)
Biotic pollination is an essential ecosystem service for agricultural production and is reflected in the high number of crops that depend on insect pollination in order to produce profitable yields. Alfalfa (Medicago sativa) is a crop whose flowers need to be visited by a bee to be pollinated for seed production, making it highly pollinator-depende...
La polinización biótica afecta de forma directa al rendimiento de la mayoría de especies vegetales cultivadas. Por eso es importante monitorear el estado del servicio de polinización en un lote; sin embargo, es raro que esto se lleve a cabo. A la hora de realizar mediciones, ciertos mecanismos de polinización-como el mecanismo explosivo-le permitir...
The topological structure of interaction networks determines community dynamics and stability. Closeness centrality is a species-level attribute that measures the relative position and proximity of species in the interaction network. We assessed the link between closeness centrality of crops in plant-pollinator interaction networks and crop seed pr...
There is a growing consensus that the world is facing a pollination crisis. To mitigate crop pollination deficits, some management strategies include the massive introduction of managed bee species, yet quite often they are applied blindly, as information on crop pollination effectiveness for each single pollinator species of assemblages is usually...
The transformation of natural landscapes for agricultural purposes may severely affect wild bee and wasp reproduction.
In this study, we located trap‐nests on 18 natural Mediterranean communities within agricultural areas to study the effects of landscape (% natural areas and heterogeneity) and local flowering communities (flower abundance and rich...
Several crops depend on both managed and wild bees to produce fruits and/or seeds, and the efficiency of numerous wild bees is higher than that of some managed species. Therefore, knowing and understanding the required resources for wild bees could enabled the establishment of management practices to increase their populations. Here, we provide inf...
The change in nutrient availability in the soil can affect key functions of forest ecosystems, such as insect herbivory. Although insect herbivory is particularly relevant because it can impact on the growth and mortality of forest plant species, the evidence of the impacts of fertilizers addition on herbivory patterns is limited. In this study, we...
Semi-natural habitats in agricultural landscapes offer reproduction and feeding sites for natural predators of pests. Spiders are among the most abundant and diverse generalist predators and can efficiently suppress pest populations in agroecosystems. However, despite the importance of these habitats, there is a significant gap of knowledge on ovip...
Bee flies of the genus Heterostylum Macquart are medium-sized species (10–15 mm) characterized primarily by a robust body covered with long pile and by an indented hind margin of the eye (Cunha et al. 2007). There are several studies on the immatures of some species of Heterostylum (Bohart et al. 1960; Yeates & Greathead 1997), which are considered...
Most of the flowering plants depend on pollinators, in different degrees, for their reproduction. The degree of pollinator dependence is especially important in exotic plants because it could determine their colonization success in new locations. The objective of this study was to determine the degree of pollinator dependence in five exotic entomop...
The exotic syrphid Eumerus strigatus (Fallén) is reported for the first time in Argentina. Individuals of this species were captured in two sites distant more than 1,000 km (Villalonga, province of Buenos Aires, and Pocito, province of San Juan) associated with onion crops (Allium cepa L.). We propose the monitoring of this phytophagous hover fly b...
Agricultural landscapes include patches of cropped and non‐cropped habitats. Non‐cropped fragments are often source habitats for natural pest predators which colonise less suitable agricultural fields. The goals of the present study were: (a) to evaluate the contribution of non‐cropped fragments to agro‐ecosystems as biodiversity reservoirs and eco...
