Inter- and intra-specific variation in movement behaviour of benthic macroinvertebrates from a transitional habitat: a laboratory experiment

Longo, Emanuela; Verschut, Thomas A.; Carrozzo, Leonardo; Zotti, Maurizio; Mancinelli, Giorgio

doi:10.1007/s12210-015-0475-5

Cited by 6 publications

(12 citation statements)

References 56 publications

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“…Lepidurus arcticus females in Spitsbergen reach maturity at a carapace length comprised between 4.1 and 9.0 mm (Lakka 2013 and literature cited); thus, the observed break falls within the size range characterizing sexual maturation. This is in agreement with previous observations on temperate amphipod and isopod species (Longo et al 2015) summarized in Table 3. Generalizing the line of reasoning proposed in the aforementioned study, movement strategy (and the metrics used to quantify it) can be considered, at least in part, as a behavioural trait (sensu Brommer 2013), comparable with other spatial memory mechanisms (e.g.…”

Section: Discussionsupporting

confidence: 94%

“…The general experimental setup is described in detail in Longo et al (2015). In brief, 24 h before the start of the trials, 50 specimens spanning the whole body size range were randomly selected from the aquaria and isolated into individual resource-free bottles with 100 ml FPW.…”

Section: Experimental Setup and Acquisition Of Movement Datamentioning

confidence: 99%

“…With 1994a, b;Angilletta et al 2008;Allema et al 2012Allema et al , 2014Kissling et al 2014; Barnes et al 2015). Only recently, attention has been given to brackish Mediterranean isopods (Mancinelli 2010;Potenza and Mancinelli 2010) and, subsequently, to other representative gastropod and crustacean species occurring in temperate environments Seuront 2011, 2013;Longo et al 2015;Augusiak and Van den Brink 2015).…”

Section: Introductionmentioning

confidence: 99%

“…In the present study a core question was addressed: do significant intra-specific, body size-related variations in movement patterns occur in Lepidurus arcticus? Intriguingly, the scant body of information available for brackish isopods and amphipods (Mancinelli 2010;Longo et al 2015) indicates that strong variations in movement complexity occur at an individual scale, i.e. movement trajectories shift progressively towards simpler, more linear patterns as the individual's size increases (see Mancinelli 2009 for a more complete discussion of related conceptual assumptions).…”

Section: Introductionmentioning

confidence: 99%

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Body size-related constraints on the movement behaviour of the arctic notostracan Lepidurus arcticus (Pallas, 1973) under laboratory conditions

Mancinelli

Pasquali

2016

Rend. Fis. Acc. Lincei

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The movement behaviour of individuals has long been acknowledged as a key determinant of species distribution in space and time. Information on benthic macroinvertebrates from aquatic habitats are still scant, however, and for polar species are virtually nonexistent. Here, the influence of body size on the movement behaviour of the arctic notostracan Lepidurus arcticus (Pallas) was examined under resource-free laboratory conditions. The mean step length, total path length and average speed were determined for specimens varying in body dry mass by six orders of magnitude. The scale-independent fractal dimension D was used to quantify movement path tortuosity. Among the different movement metrics considered, the body size of specimens scaled significantly only with path tortuosity; specifically, a negative relationship with a breakpoint was observed between individual body masses and the D values of the respective movement paths. The results are discussed considering similar results obtained for benthic crustaceans from temperate habitats. Additionally, their implications for future investigations explicitly considering temperature effects on movement behaviour are briefly considered. Keywords Arctic tadpole shrimp Á Locomotor activity Á Individual differences Á Fractal dimension This peer-reviewed article is a result of the multi and interdisciplinary research activities based at the Arctic Station ''Dirigibile Italia'', coordinated by the ''Dipartimento Scienze del Sistema Terra e Tecnologie per l'Ambiente'' of the National Council of Research of Italy.

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Section: Discussionsupporting

confidence: 94%

Section: Experimental Setup and Acquisition Of Movement Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Body size-related constraints on the movement behaviour of the arctic notostracan Lepidurus arcticus (Pallas, 1973) under laboratory conditions

Mancinelli

Pasquali

2016

Rend. Fis. Acc. Lincei

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“…The significant density increase of detritivores is potentially a mixed result of the active colonisation of the treatments' mesocosms by new G. aequicauda and of increased juvenile recruitment. While G. aequicauda is a very active swimmer (swimming speed up to 20 cm.s -1 in laboratory conditions) with a moving capacity considered relatively high for a benthic amphipod (verscHut et al 2015;LOnGO et al 2016), amphipod juveniles are a major component of litter meiofauna (Mascart et al 2015a) and the experiment duration (14 days) would have allowed juveniles to reach the 500 µm size needed to be retained by sieving.…”

Section: Remy F Et Al Effect Of Resource Pulse On Seagrass Macrophmentioning

confidence: 99%

Effects of an experimental resource pulse on the macrofaunal assemblage inhabiting seagrass macrophytodetritus

2017

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ABSTRACT. Physical disturbances and resource pulses are major structuring drivers of terrestrial and aquatic ecosystems. The accumulations of exported dead leaves from the Neptune grass, Posidonia oceanica (L.) Delile are ephemeral and highly dynamic detrital habitats offering food sources and shelter for vagile macrofauna community. These habitats are frequently subject to wind and storms which can add "new" detrital material to previous accumulations; these can be defined as resource pulses and could potentially impact the associated macrofauna. This study assesses the impact of an experimental resource pulse on the macrofauna associated with exported P. oceanica litter accumulations. The experimental design consisted of two pulse treatments (the addition of dead leaves with and without the associated fauna), and two controls (one procedural, and one total control), where the added material was left underwater for 14 days. Invertebrates then present in the sampled detritus were all identified and counted. Our data suggest that the responses of these invertebrates to resource pulses present intermediate characteristics between aquatic and terrestrial ecosystems responses. Inputting a moderate amount of dead P. oceanica leaves into experimental mesocosms had a non-negligible impact and rapidly affected the macrofauna community. Specialist detritivores species were boosted while herbivore/detritivore species dramatically decreased. Predators also showed a modest but significant density increase, demonstrating the fast propagation of the pulse response throughout the entire community and through several trophic levels. Strict hypoxia-tolerant species were also only observed in the treated mesocosms, indicating the strong influence of resource pulses on physico-chemical conditions occurring inside litter accumulations.

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The relative importance of metabolic rate and body size to space use behavior in aquatic invertebrates

Shokri,

Marrocco,

Cozzoli

et al. 2024

Ecology and Evolution

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Elucidating the underlying mechanisms behind variations of animal space and resource use is crucial to pinpoint relevant ecological phenomena. Organism's traits related to its energy requirements might be central in explaining behavioral variation, as the ultimate goal of a forager is to fulfill its energy requirements. However, it has remained poorly understood how energy requirements and behavioral patterns are functionally connected. Here we aimed to assess how body mass and standard metabolic rate (SMR) influence behavioral patterns in terms of cumulative space use and time spent in an experimental patchy environment, both within species and among individuals irrespective of species identity. We measured the behavioral patterns and SMR of two invertebrate species, that is, amphipod Gammarus insensibilis, and isopod Lekanesphaera monodi, individually across a range of body masses. We found that species of G. insensibilis have higher SMR level, in addition to cumulatively exploring a larger space than L. monodi. Cumulative space use scaled allometrically with body mass, and it scaled isometrically with SMR in both species. While time spent similarly in both species was characterized by negative body mass and SMR dependence, it was observed that L. monodi individuals tended to stay longer in resource patches compared to G. insensibilis individuals. Our results further showed that within species, body mass and metabolic rate explained a similar amount of variation in behavior modes. However, among individuals, regardless of species identity, SMR had stronger predictive power for behavioral modes compared to body mass. This suggests that SMR might offer a more generalized and holistic description of behavioral patterns that extend beyond species identity. Our study on the metabolic and body mass scaling of space and resource use behavior sheds light on higher‐order ecological processes such as species' competitive coexistence along the spatial and trophic dimensions.

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Inter- and intra-specific variation in movement behaviour of benthic macroinvertebrates from a transitional habitat: a laboratory experiment

Cited by 6 publications

References 56 publications

Body size-related constraints on the movement behaviour of the arctic notostracan Lepidurus arcticus (Pallas, 1973) under laboratory conditions

Body size-related constraints on the movement behaviour of the arctic notostracan Lepidurus arcticus (Pallas, 1973) under laboratory conditions

Effects of an experimental resource pulse on the macrofaunal assemblage inhabiting seagrass macrophytodetritus

The relative importance of metabolic rate and body size to space use behavior in aquatic invertebrates

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