Spatial distribution of Cydia fagiglandana (Zeller) in an exploited holm oak (Quercus ilex L.) forest

Jimenez-Pino, A.; Lopez-Martinez, M.; Ocete-Rubio, M. E.; Soria-Iglesias, F. J.

doi:10.5424/sjar/20110902-050-10

Cited by 10 publications

(13 citation statements)

References 18 publications

(18 reference statements)

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“…Larval stages of the moth species C. fagiglandana and C. splendana occur in considerable numbers in Northern Red Oak acorns, and for C. splendana there was no significant difference in numbers between the two oak species. The use of Northern Red Oak acorns may help to avoid competition with Curculio weevil larvae, which has been described previously in the case of C. fagiglandana (Jimenez-Pino et al 2011). In that study, inter-specific competition with the weevil C. elephas was the factor that most affected the spatial distribution of C. fagiglandana larvae (Jimenez-Pino et al 2011).…”

Section: Discussionmentioning

confidence: 62%

“…The use of Northern Red Oak acorns may help to avoid competition with Curculio weevil larvae, which has been described previously in the case of C. fagiglandana (Jimenez-Pino et al 2011). In that study, inter-specific competition with the weevil C. elephas was the factor that most affected the spatial distribution of C. fagiglandana larvae (Jimenez-Pino et al 2011). Apart from reduced competition with other seed eating insects the ability to develop larvae in the tissues of another host plant can increase the stability of the population.…”

Section: Discussionmentioning

confidence: 99%

“…are widely distributed Palearctic species which have large seeds in the form of acorns. The main pre-dispersal predators which strongly limit the reproductive success of oaks are insects, mainly Curculio beetles (Coleoptera: Curculionidae) and Cydia moths (Lepidoptera: Tortricidae) which infest a large proportion of the produced seeds (e.g., Gibson 1981;Jimenez-Pino et al 2011;Bonal et al 2012). Even if the seeds do not completely lose their ability to germinate, the fitness of seedlings from such infected seeds is significantly reduced by insect feeding compared to sound seeds (Bonal et al 2007;Perea et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…However, such heavy seeds are also a plentiful food resource used by many animals, both invertebrate and vertebrate, which results in high preand post-dispersal seed losses (e.g., Jimenez-Pino et al 2011;Bonal et al 2012;Bieberich 2016). High seed predation together with abiotic factors in some habitats are able to prevent successful regeneration of forest trees (Pulido and Díaz 2005).…”

Section: Introductionmentioning

confidence: 99%

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Acorns of invasive Northern Red Oak (Quercus rubra) in Europe are larval hosts for moths and beetles

et al. 2017

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In their first phase of expanding into new areas, invasive plants often take advantage of the inability of existing herbivores and pathogenic species to exploit them. However, in the longer term local enemies may adapt to using these invasive species as a food source. This study assesses the use of mature acorns of two oak species in Europe (the native Pedunculate Oak Quercus robur and the invasive Northern Red Oak Quercus rubra) by moths Cydia fagiglandana and Cydia splendana and beetles Curculio spp. We show that acorns of invasive oak species can be equally attractive to C. splendana but only partially so to C. fagiglandana where infestation rates where significantly lower (approximately half) compared to the native oak. The infestation by Curculio beetles of Northern Red Oak was marginal, less than 1% of the rate in the native oak species. The larval final weights did not differ significantly between host species, but emergence of C. splendana and Curculio spp. took significantly longer in acorns of Northern Red Oak. It is likely that C. fagiglandana and C. splendana have increased their niche breadths by exploiting invasive oak species and avoiding competition with the Curculio weevils. Furthermore, the occurrence of Northern Red Oak could stabilize food resources during years when native oak species have poor acorn crops.

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Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acorns of invasive Northern Red Oak (Quercus rubra) in Europe are larval hosts for moths and beetles

et al. 2017

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“…In this study, we have analysed the effects of age and connectivity of forest patches in the composition of the granivore guild of insects and the consequences (negative, positive, neutral) for acorn predation in expanding holm oak (Quercus ilex L.) forests in NE Spain. These include weevils (Curculio glandium Marsham and C. elephas Gyllenhal (Curculionidae)) and moths (Cydia fagiglandana Zeller (Tortricidae)) (Espelta, Cortés, Molowny-Horas, & Retana, 2009;Jimenez-Pino, 2011), which differ in their dispersal ability (higher in C. fagiglandana, intermediate in C. glandium and lower in C. elephas) and resilience to unsuitable conditions (Jimenez-Pino, 2011;Pélisson, Bernstein, François, Menu, & Venner, 2013;Schumacher, Weyeneth, Weber, & Dorn, 1997;Soria, 1999). These new Mediterranean forests offer an ideal study system to assess these questions as Q. ilex can be considered a foundation species with large implications in ecosystem functioning (sensu Angelini, Altieri, Silliman, & Bertness, 2011) and its acorns are heavily depredated by a guild of predators.…”

Section: Introductionmentioning

confidence: 99%

Zero‐sum landscape effects on acorn predation associated with shifts in granivore insect community in new holm oak (Quercus ilex) forests

Ruiz‐Carbayo

Bonal

Pino

et al. 2018

Diversity and Distributions

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Aim: Landscape attributes can determine plant-animal interactions via effects on the identity and abundance of the involved species. As most studies have been conducted in a context of habitat loss and fragmentation, we know very little about interaction assembly in new habitats from a landscape approach. This study aimed to test the effect of forest age and connectivity on acorn predation by a guild of predator insects differing in dispersal ability and resilience mechanisms: two weevils (Curculio elephas and C. glandium) and one moth (Cydia fagiglandana) in expanding Quercus ilex forests. Location: Barcelona, Spain. Methods:We assessed the proportion of infested acorns and identified the predator at the species level in five patches of connected old forests, connected new forests and isolated new forests. Effects of habitat age and connectivity at three scales (tree, patch and landscape) were analysed using generalized linear mixed-effects models.Results: Predation by weevils was positively associated with old connected forests, while moths, with better dispersal ability, were able to predate upon all patches equally. Moreover, C. elephas, the weevil with lower dispersal ability, exhibited colonization credits in the new isolated patches. In spite of these changes in the guild of seed predators, the proportion of infested acorns was non-significantly different among forests. Main conclusions:The guild of seed predators may vary depending on forest age and connectivity. However, because those with higher dispersal ability may replace less mobile species, this resulted in zero-sum effects of landscape attributes on acorn predation (i.e., similar predation rates in well-connected old forests vs. isolated new forests). K E Y W O R D Sacorn predation, biotic interactions, forest regeneration, landscape structure, life-history traits, spatiotemporal effects, zero-sum effects

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Insects of Reproductive Structures

Strong

Mangini

Candau

2023

Forest Entomology and Pathology

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The insects that feed on reproductive structures of forest trees are not only economically important, they are fascinating examples of the ability of insects to adapt to and exploit the many niches available in forest ecosystems. Cones, fruits, seeds, nuts, catkins and pollen are rich food sources available to insect herbivores. These reproductive structures are qualitatively and quantitatively different from vegetative parts of the tree, in terms of food quality, spatial and temporal distribution, and plant protective strategies. In this chapter we will explore types of reproductive structure herbivory, nutritive value and host defenses, insect strategies and community structure, evolutionary consequences for the host, and implications for management.

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Spatial distribution of Cydia fagiglandana (Zeller) in an exploited holm oak (Quercus ilex L.) forest

Cited by 10 publications

References 18 publications

Acorns of invasive Northern Red Oak (Quercus rubra) in Europe are larval hosts for moths and beetles

Acorns of invasive Northern Red Oak (Quercus rubra) in Europe are larval hosts for moths and beetles

Zero‐sum landscape effects on acorn predation associated with shifts in granivore insect community in new holm oak (Quercus ilex) forests

Insects of Reproductive Structures

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