Hyperparasitism and seasonal patterns of parasitism as potential causes of low top-down control in Euproctis chrysorrhoea L. (Lymantriidae)

Frago, Enric; Pujadé-Villar, Juli; Guara, Miguel; Selfa, Jesús

doi:10.1016/j.biocontrol.2011.11.013

Cited by 15 publications

(11 citation statements)

References 19 publications

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“…Both intra‐ and interspecifically, preference for different host stages by parasitoids can also increase resource heterogeneity (e.g., Price , Frago et al. ). Theoretical models also suggest that under certain conditions host stage‐structure can allow for parasitoid coexistence (Briggs ).…”

Section: Discussionmentioning

confidence: 99%

Host size and spatiotemporal patterns mediate the coexistence of specialist parasitoids

Pekas

Tena

Harvey

et al. 2016

Ecology

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Abstract.Many insect parasitoids are highly specialized and thus develop on only one or a few related host species, yet some hosts are attacked by many different parasitoid species in nature. For this reason, they have been often used to examine the consequences of competitive interactions. Hosts represent limited resources for larval parasitoid development and thus one competitor usually excludes all others. Although parasitoid competition has been debated and studied over the past several decades, understanding the factors that allow for coexistence among species sharing the same host in the field remains elusive. Parasitoids may be able to coexist on the same host species if they partition host resources according to size, age, or stage, or if their dynamics vary at spatial and temporal scales. One area that has thus far received little experimental attention is if competition can alter host usage strategies in parasitoids that in the absence of competitors attack hosts of the same size in the field. Here, we test this hypothesis with two parasitoid species in the genus Aphytis, both of which are specialized on the citrus pest California red scale Aonidiella aurantii. These parasitoids prefer large scales as hosts and yet coexist in sympatry in eastern parts of Spain. Parasitoids and hosts were sampled in 12 replicated orange groves. When host exploitation by the stronger competitor, A. melinus, was high the poorer competitor, A. chrysomphali, changed its foraging strategy to prefer alternative plant substrates where it parasitized hosts of smaller size. Consequently, the inferior parasitoid species shifted both its habitat and host size as a result of competition. Our results suggest that density-dependent size-mediated asymmetric competition is the likely mechanism allowing for the coexistence of these two species, and that the use of suboptimal (small) hosts can be advantageous under conditions imposed by competition where survival in higher quality larger hosts may be greatly reduced.

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Section: Discussionmentioning

confidence: 99%

Host size and spatiotemporal patterns mediate the coexistence of specialist parasitoids

Pekas

Tena

Harvey

et al. 2016

Ecology

Self Cite

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“…Furthermore, seasonality was also reflected in the high temporal turnover. This phenological asynchrony allows the coexistence of species with similar trophic habits, and may be an indicator of differences in their strategies for exploiting their hosts (Frago et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Diversity of Ichneumonidae (Insecta: Hymenoptera) in a protected area of Central Spain: What are we protecting?

Mazón

Bordera

2014

Insect Conserv Diversity

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Invertebrates are rarely considered when designing protected areas, and their biodiversity patterns in these areas are almost always unknown. We studied the spatial and temporal diversity of Ichneumonidae in five selected habitats of Cabañeros National Park: grazing pastureland, shrubland, and three types of woodland (Pyrenean oak, cork oak, and ash woodlands). We focused on 11 subfamilies, with species classified into trophic guilds. The highest diversity and richness of Ichneumonidae were found in ash woodland and pastureland, each with similar structural habitat complexity. Species turnover between habitats was about 50% and it contributed more to the total species richness than the fauna inherent to the habitats, though less to the total species diversity. Shrubland is transitional between pasture and woodland and Ichneumonidae assemblages in this habitat are rather different in their species composition from the others. Parasitoids of phytophages are well represented in all habitats; other guilds are more related to specific habitats, e.g. parasitoids of xylophages in shrubland. We suggest that shrub may be invading and isolating some of the woodlands. The mosaic landscape of the National Park, including open areas, is essential to ensure the conservation of parasitoids.

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“…as a natural enemy in biological control as practiced by Barloggio et al (2015) appears effective, because the damage caused by pests was minimized. The parasitoids usage as natural enemies must consider the fluctuations and seasonal patterns of the main agent and its competitors, so the biological control process is effective (Frago et al, 2012). Also, habitat engineering needed so that parasitoids can survive and develop naturally, especially related to the food needs of these natural enemies (Rizali et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

FLUCTUATION OF Doleschallia bisaltide LARVAE (LEPIDOPTERA: NYMPHALIDAE) ON CARICATURE-PLANT (Graptophyllum pictum)

Adi

Susanti

Wijaya

2020

JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

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Fluctuation of Doleschallia bisaltide larvae (Lepidoptera: Nymphalidae) on caricature-plant (Graptophyllum pictum).Caricature-plant cultivation is often damaged due to the attack of Doleschallia bisaltide larvae. High reproduction ability ofD. bisaltide is a serious problem that need to be managed, therefore it will not inflict a financial losses. This study was aimedto determine the fluctuation of D. bisaltide larval population in the caricature-plant plantation in Kalisoro, Tawangmangu.The observations were carried out with a survey method on five observation plots for seven months from March to September2018. The data were analyzed by descriptive statistics and the Spearman rank correlation coefficient test. The results showedthat the population structure was changed during the observations with the highest larval population in May. The results ofSpearman rank correlation coefficient test showed significant and positive correlation between third, fourth, and fifth instarslarvae with the rainfall. The control of D. bisaltide can not only depend on the presence of natural enemies, therefore controlinterventions were needed especially at a suitable time and environment whne the population increased.

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Hyperparasitism and seasonal patterns of parasitism as potential causes of low top-down control in Euproctis chrysorrhoea L. (Lymantriidae)

Cited by 15 publications

References 19 publications

Host size and spatiotemporal patterns mediate the coexistence of specialist parasitoids

Host size and spatiotemporal patterns mediate the coexistence of specialist parasitoids

Diversity of Ichneumonidae (Insecta: Hymenoptera) in a protected area of Central Spain: What are we protecting?

FLUCTUATION OF Doleschallia bisaltide LARVAE (LEPIDOPTERA: NYMPHALIDAE) ON CARICATURE-PLANT (Graptophyllum pictum)

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