Sergio Jansen González- Ph.D.
- Professor (Invitado) at University of Costa Rica
Sergio Jansen González
- Ph.D.
- Professor (Invitado) at University of Costa Rica
About
18
Publications
4,391
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Introduction
I am interested in the study of plant-insect interactions, particularly the emergence, evolution, and maintenance of mutualism. I am searching for chalcid wasps associated with angiosperm reproductive parts to understand the conditions necessary for antagonistic interactions to evolve into mutualism. I work on the taxonomy and systematics of the chalcid wasps I find during my search. Additionally, I work in insects as food and feed, and beekeeping with the New World African honeybee.
Current institution
Additional affiliations
January 2019 - October 2022
January 2015 - September 2015
Education
August 2009 - September 2013
February 2007 - February 2009
Independent Researcher
Field of study
- Entomology
January 2001 - June 2006
Publications
Publications (18)
Understanding tri-trophic interactions and the relationship among plants, herbivores, and their natural enemies is fundamental to advancing theoretical and practical ecology. Parasitoidism is among those interactions where tri-trophic levels are usually developed, with hyperparasitism and kleptoparasitism as examples. This study explores the intera...
In the complex dynamics of plant–insect interactions, the specialized galling of reproductive structures presents unique evolutionary adaptations. This study investigates the parasitic relationship between Arastichus gallicola (Hymenoptera, Eulophidae), an ovary-galling wasp, and the inflorescences of Thaumatophyllum bipinnatifidum (Araceae). We em...
Manual técnico básico sobre producción y procesamiento de grillo casero
Manual Técnico Básico para la producción y procesamiento de Hermetia illucens (Mosca Soldado Negra) en el contexto de Costa Rica
A new genus of a Neotropical gall inducing tetrastichine eulophid on Araceae is described and confirmed using Ultraconserved Elements (UCE) phylogenomic data. Arastichus Gates, Hanson, Jansen-González & Zhang, gen. nov. , includes two new species and one species transferred from Aprostocetus Westwood: A. capipunctata Gates, Hanson, Jansen-González...
A pesar de que hay una gran diversidad de hongos atacando insectos, hay pocos reportes de hongos entomopatógenos afectando especies de meliponinos. En este trabajo presentamos evidencia de un hospedero poco usual, Nemania abortiva (Xylariales: Xylariaceae), afectando adultos de Melipona beecheii (Apidae : Apinae : Meliponini). Individuos de M. beec...
The association between ontogenetic processes in plants and phytophagous insects is not traditionally considered in studies of insect-plant interactions. Angiosperm seeds impose important constraints on seed predators; the structural complexity of seeds and the progressive accumulation of resources throughout their development limit the time window...
The association between ontogenetic processes in plants and phytophagous insects is not traditionally considered in studies of insect-plant interactions. Angiosperm seeds impose important constraints on seed predators; the structural complexity of seeds and the progressive accumulation of resources throughout their development limit the time window...
Since the description of Quadrastichus erythrinae (Hymenoptera: Eulophidae: Tetrastichinae) in 2004, this invasive species has been reported in various tropical and subtropical regions, causing damage to several species of coral trees (Erythrina spp.). Here we report the presence of yet another invasive Quadrastichus attacking native and introduced...
Pepsis aquila (Hymenoptera: Pompilidae) is reported as an assiduous flower visitor and possible pollinator of Passiflora apetala, P. auriculata and P. holosericea in Costa Rica. The vertex and scutellum of P. aquila becomes abundantly covered with pollen while collecting the nectar from the cup nectaries of Passiflora. The Passiflora visited by P....
Several lineages of holometabolous insects converged in the way they use seeds as an alimentary resource. In Chalcidoidea (Hymenoptera) seed predation emerged independently in six families. In most cases, the adult female oviposits on developing seeds with a sedentary larvae feeding on a single seed. The seed can be nutritionally rich when compared...
Recent studies on the obligate interaction between fig trees and their pollinating agaonid wasps have focused on population aspects and wasp–seed exploitation at the level of the inflorescence. Detailed studies on larval and gall development are required to more fully understand how resources are exploited and adaptations fine-tuned by each partner...
Lifetime reproductive success in female insects is often egg-or time-limited. For instance in pro-ovigenic species, when oviposition sites are abundant, females may quickly become devoid of eggs. Conversely, in the absence of suitable oviposition sites, females may die before laying all of their eggs. In pollinating fig wasps (Hymenoptera: Agaonida...
The interaction between plants of the genus Ficus (Moraceae) and wasps of the family Agaonidae (Hymenoptera) has been well studied for a long time. However, there are few studies concerned with the basic biology of the wasps in general and even fewer studies in the Neotropics. This paper describes a new species of fig wasp, Pegoscapus bacataensis,...
Questions
Question (1)
I've seen females of these flies ovipositing on a Philodendron inflorescence and I would like to identify them if possible.
