Barometric pressure influences host-orientation behavior in the larva of a dipteran ectoparasitoid

Crespo, José E.; Castelo, Marcela K.

doi:10.1016/j.jinsphys.2012.09.010

Cited by 20 publications

(18 citation statements)

References 35 publications

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“…High atmospheric pressure is usually associated with sunny weather, but drops in pressure are usually followed by rain and possibly floods if the rain is heavy and persistent (Bonan, ). Several studies recently demonstrated that atmospheric pressure can influence both the behavioural and ecological attributes of insects (Crespo & Castelo, ; Pellegrino et al, ; Zagvazdina et al, ). Our previous findings regarding T. tenuicornis microhabitat choice led us to hypothesize that groundhoppers can predict weather by sensing changes in atmospheric pressure and that, if the pressure is low (signalling rainy weather), individuals actively search for dense, protective vegetation (Musiolek & Kočárek, ).…”

Section: Discussionmentioning

confidence: 99%

Effect of substrate on the risk of being washed away by floods for the Groundhoppers Tetrix subulata and Tetrix tenuicornis (Orthoptera: Tetrigidae)

Musiolek

Kočárek

2017

River Research & Apps

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Inundation zones of rivers are risky environments for terrestrial animals because of the regular or irregular occurrence of floods. Although animals in these zones have evolved several strategies to survive floods, behavioural anti-flooding strategies have seldom been studied but could play an important role in their life history strategies. We previously reported that the groundhopper Tetrix tenuicornis moves to dense vegetation in response to low atmospheric pressure (which may signal rain and flooding) but prefers mossy microhabitats and bare ground under high atmospheric pressure. In the current study, we found that the ability of the semi-aquatic groundhoppers T. tenuicornis and Tetrix subulata to withstand direct water flow was greater in patches of dense vegetation than in patches of moss or on bare ground. Even a relatively low water velocity led to water transport (presumably passive) of both species, perhaps because they lack arolia or other adhesive devices on their tarsi. This morphological limitation precludes vertical migration on vegetation, which is a common anti-flooding strategy in insects. Our results suggest that, by moving to dense vegetation in response to drops in atmospheric pressure, groundhoppers may reduce their risk of being washed away by floods.

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Section: Discussionmentioning

confidence: 99%

Effect of substrate on the risk of being washed away by floods for the Groundhoppers Tetrix subulata and Tetrix tenuicornis (Orthoptera: Tetrigidae)

Musiolek

Kočárek

2017

River Research & Apps

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“…New filter papers were placed at the beginning of every trial. All experiments were conducted between 10.00 and 17.00 hours on days where the barometric pressure was stable or increasing, because it has been shown that drops in barometric pressure halt the orientation behaviour of the larvae (Crespo & Castelo, 2012). Experiments were carried out under laboratory conditions (26 ± 1.0 ∘ C) and in darkness.…”

Section: Host Orientationmentioning

confidence: 99%

Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid

Martinez

Castelo

Crespo

2017

Ecological Entomology

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1. Accurate measurement of external conditions is fundamental for survival. For parasitoids, in particular, sensing the environmental conditions is key because they are short-lived animals that must acquire information shortly after emergence.2. This study investigated whether conspecifics during larval growth can influence and modify the decision to orient to different quality hosts in a parasitoid with an active host-seeking larva. How the density of conspecifics during growth modifies these decisions was also studied.3. When larvae were submitted to increases in the intensity of pre-parasitism competition and then offered different host odours, they increased the orientation to poor-quality hosts likewise. It was also found that this behaviour is general to orientation to hosts in different physiological states.4. These results show that pre-parasitism competition can influence and modulate orientation to poor-quality hosts when high-quality hosts are not available.

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“…Therefore, especially pressure drops are associated with adverse and detrimental weather, conditions that can be devastating for insects (Wellington, ). Barometric pressure was already shown affecting the behavior of vertebrates, as rats (Mizoguchi et al, ) and sparrows (Metcalfe, Schmidt, Kerr, Guglielmo, & MacDougall‐Shackleton, ), and insects from different orders (Crespo & Castelo, ; Dagaeff et al, ; Pellegrino et al, ). In social insects, although certain behavioral modifications have previously been correlated with changes in barometric pressure (Southwick & Moritz, ), no investigation has directly linked them through observations under controlled conditions.…”

Section: Introductionmentioning

confidence: 97%

Foraging activity of leaf‐cutter ants is affected by barometric pressure

et al. 2019

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Among all activities displayed by ant colonies, searching for food is essential for all individuals survival. However, many external activities are hazardous or restrictive for the entire society. Even though leaf‐cutter ants are highly successful insects, they are subject to extreme aspects of foraging, as raindrops and wind. Although recruitment and food exploitation are known to change with temperature and humidity, barometric pressure changes and how they affect ant behavior remain unknown. We aimed to determine how an increase or decrease in barometric pressure might modify foraging strategies of the leaf‐cutter ant Atta sexdens compared to steady pressure. The first modification observed in the workers behavior was the scouts greater promptness in leaving the nest when the barometric pressure decreased. Regard to the foragers, there was no difference in the number of individuals recruited for collecting leaves. However, it was cut and brought into the nest 1.5 and 2 times more leaves during the pressure drop, respectively. The reason for this foraging efficiency as a whole was ultimately the sum of the efficiency of each forager. The shifts in behavior, therefore, could be related to the indirect consequences of a pressure decrease, such as rainfall and strong winds, both strong constraints on ants on a trail. This is the first report of barometric pressure affecting the behavior of a social insect under controlled conditions.

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Barometric pressure influences host-orientation behavior in the larva of a dipteran ectoparasitoid

Cited by 20 publications

References 35 publications

Effect of substrate on the risk of being washed away by floods for the Groundhoppers Tetrix subulata and Tetrix tenuicornis (Orthoptera: Tetrigidae)

Effect of substrate on the risk of being washed away by floods for the Groundhoppers Tetrix subulata and Tetrix tenuicornis (Orthoptera: Tetrigidae)

Behavioural plasticity induced by intraspecific competition in host orientation in a parasitoid

Foraging activity of leaf‐cutter ants is affected by barometric pressure

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