Linking foraging behavior to lifetime reproductive success for an insect parasitoid: adaptation to host distributions

Vos, Matthijs; Hemerik, Lia

doi:10.1093/beheco/14.2.236

Cited by 38 publications

(35 citation statements)

References 25 publications

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“…Where colony-specific resources differ, substantially different foraging strategies may be favoured at each location, each maximising lifetime reproductive output relative to background resource availability (Endler 1977, Suryan et al 2000, Vos & Hemerik 2002. Entrained by population-specific foraging behaviour, physiological characteristics such as chick developmental patterns may also diverge and become population-specific (Arendt 1997).…”

Section: Introductionmentioning

confidence: 99%

Colony-specific foraging behaviour and co-ordinated divergence of chick development in the wedge-tailed shearwater Puffinus pacificus

Peck

Congdon²

2005

Mar. Ecol. Prog. Ser.

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We examined divergence in foraging, provisioning and chick developmental patterns between wedge-tailed shearwaters Puffinus pacificus breeding at a temperate (Lord Howe Island) and sub-tropical (Heron Island) location. We aimed to evaluate the potential for different foraging environments to cause co-ordinated adaptive divergence in these characteristics. Adult foraging and provisioning behaviour differed significantly between locations, reflecting lower near-colony resource availability at Heron Island. Chick developmental patterns also differed significantly between locations. Overall, chicks at Lord Howe Island grew faster and had greater skeletal growth per gram of food delivered. In contrast, chicks at Heron Island exhibited greater body mass gains per gram of food delivered. Based on previously observed physiological or facultative responses to changes in provisioning rates in seabirds and long-term patterns of primary productivity at each location, we propose these developmental differences reflect colony-specific physiological adaptations to differences in long-term provisioning rates. If so, our results suggest co-ordinated environmentally determined divergent coevolution of chick and adult life-history parameters between these 2 locations.KEY WORDS: Procellariiform · Shearwater · Chick development · Co-ordinated divergence · Foraging behaviour · AdaptationResale or republication not permitted without written consent of the publisher

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Section: Introductionmentioning

confidence: 99%

Colony-specific foraging behaviour and co-ordinated divergence of chick development in the wedge-tailed shearwater Puffinus pacificus

Peck

Congdon²

2005

Mar. Ecol. Prog. Ser.

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“…1 below), and (2) the interval between encounters with prey (IBE) from an exponential distribution. On each leaf the predator encounters and eats a prey item (if drawn GUT [ drawn IBE) or leaves the patch (when drawn GUT B drawn IBE), like in earlier simulation studies (Driessen and Hemerik 1992;Driessen and Bernstein 1999;Vos and Hemerik 2003;Wajnberg et. al.…”

Section: Methodsmentioning

confidence: 89%

“…For the encounter rate of prey items, the same approach is used as in the appendix of Vos and Hemerik (2003). Those authors assume that both the IBEs and the GUTs result from an exponential distribution with parameters r enc and h 0 , respectively.…”

Section: Other Rate Parametersmentioning

confidence: 99%

“…The calculated value was 539 s, and the number of realized IBE intervals and GUT intervals in our data were 162 and 52 (fractions 0.76 and 0.24). Under the assumption of exponentially distributed encounters and GUTs, we know from the appendix of Vos and Hemerik (2003) that the fraction of realized encounters with prey (f enc ) and the fraction of realized GUTs (1 -f enc ) are derived as, respectively, f enc = r enc / (r enc ? h 0 ) and 1 -f enc = h 0 /(r enc ?…”

Section: Other Rate Parametersmentioning

confidence: 99%

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Scaling up from individual behaviour of Orius sauteri foraging on Thrips palmi to its daily functional response

Hemerik¹,

Yano

2011

Population Ecology

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Functional responses of predators are generally measured under laboratory conditions at rather high prey densities. This is also true for the predation capability of the anthocorid predatory bug Orius sauteri (Poppius). To quantify the daily impact of one female Orius predator on its prey Thrips palmi Karny on greenhouse eggplants where the prey is present below the economic threshold density, we use its patch-leaving and feeding behaviour on eggplant leaves with different prey numbers and scale up to the larger spatio-temporal scale of the greenhouse and one foraging day by means of a simulation model. For this, we also use literature data on the distribution of T. palmi over eggplant leaves. The simulation results in a typical type II functional response for O. sauteri as a function of average T. palmi density: O. sauteri can find and eat approximately 10 prey items per day if T. palmi is present around its economic injury level. The daily mean number of prey eaten per O. sauteri predator, i.e., its predation capability, is highly sensitive to the actual baseline leaving tendency, the effect size of the presence of prey on the baseline leaving tendency and the effect size of the encounter rate with prey thereon.

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“…concluded by ovipositions, as soon as not all modules are acceptable, that is α < 1), an assumption fairly admissible and commonly referred to (Sugimoto, 1980: 15;Kuhlmann et al, 1998;Wool & Ben-Zvi, 1998;Kagata & Ohgushi, 2002;Vos & Hemerik, 2003;Ives & Godfray, 2006);…”

Section: A Brief Summary Of the "Melba" Procedures Assumptions Involvementioning

confidence: 99%

Quantifying the gap between the actual incidence of leaf-mining or leaf-galling insects and the proportion of host-leaves potentially acceptable by them

Béguinot

2012

Annales de la Société entomologique de France (N.S.)

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Abstract. The impact of phyto-endophagous insects on their host-plants is restricted, at fi rst, by the plants own defences, which more or less limit the proportion of host-leaves potentially acceptable by egg-laying mothers in view of the future successful development of the brood. But, due to the supplementary contributions of top-down and horizontal regulations, the actual incidence of endophagous insects (especially leaf-miners and leaf-gallers) among leaves is likely being still (quite) lower than the proportion of potentially acceptable host-leaves. But, more precisely, how large and how variable is the gap between the proportion of potentially acceptable resource and the fraction actually exploited, i.e. the actual incidence of the insect? While the topic has been treated within a few particular couples herbivore-host, we still lack of a larger overview of the subject, at the scale of a reasonably representative set of members of the guilds of leaf-miners and leaf-gallers. We address the issue, taking advantage of a specifi cally designed procedure that allows the convenient and quick indirect estimate of the proportion of host-leaves potentially acceptable by mothers (a proportion that, otherwise, seems virtually impossible to record directly in the fi eld). Considering a large fi eld survey (115 samples, 22 couples insect/host-plant), the estimated gap between the potentially acceptable resource and the actual incidence reveals on average quite signifi cant, while strongly variable from case to case: indeed, the exploitation ratio of the potentially acceptable resource may, occasionally, be as low as 20% for some gall-inducers and even decrease to less than 10% for some mine-fomers. Accordingly, as expected, the recorded incidence of the insects may not at all serve as a reasonable predicator of the maximum possible incidence that would be authorised by the potential of acceptable host-resource.Résumé. Quantifi er l'écart entre l'incidence réelle des insectes mineurs de feuilles et inducteurs de galles de feuilles et la proportion de feuilles-hôtes potentiellement acceptable par ceuxci. L'impact des insectes endo-phytophages sur leurs plantes-hôtes est en premier lieu restreint par les propres défenses des plantes, lesquelles limitent la part des feuilles potentiellement acceptables par les mères pondeuses, afi n d'assurer le bon développement de leur descendance. En raison des contributions supplémentaires propres aux régulations «top-down» et «horizontale», l'incidence effective des insectes endo-phytophages (en particulier fonceurs de mines et inducteurs de galles foliaires) est ordinairement bien inférieure à la proportion des feuilles potentiellement acceptables. Mais quelle peut-être l'amplitude de l'écart entre incidence effective et ressource potentiellement acceptable? Bien que le sujet ait à l'occasion été traité pour quelques couples herbivore-hôte, on manque encore d'une vision plus globale de la question, à l'échelle d'un large échantillonnage raisonnablement représentatif des guildes d'ins...

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Linking foraging behavior to lifetime reproductive success for an insect parasitoid: adaptation to host distributions

Cited by 38 publications

References 25 publications

Colony-specific foraging behaviour and co-ordinated divergence of chick development in the wedge-tailed shearwater Puffinus pacificus

Colony-specific foraging behaviour and co-ordinated divergence of chick development in the wedge-tailed shearwater Puffinus pacificus

Scaling up from individual behaviour of Orius sauteri foraging on Thrips palmi to its daily functional response

Quantifying the gap between the actual incidence of leaf-mining or leaf-galling insects and the proportion of host-leaves potentially acceptable by them

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