Temporal Dynamics and Resource Availability for Drosophilid Fruit Flies (Insecta, Diptera) in a Gallery Forest in the Brazilian Savanna

Valadão, Henrique; Hay, John Du Vall; Tidon, Rosana

doi:10.1155/2010/152437

Cited by 21 publications

(18 citation statements)

References 44 publications

(49 reference statements)

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“…This is consistent with previous observations that D. erecta aggregate at high densities in the wild, which suggests that competition for the seasonally restricted Pandanus fruit may select for increased aggregation rates in this species. The generalists D. pseudoobscura, D. melanogaster , D. simulans and D. willistoni , which are often found competing with other species for food in nature, also aggregated at high levels in our assay as well as in the wild, further suggesting that selection in food competitive environments may drive aggregation levels. The remaining species, including the noncompeting dietary specialists D. arizonae and D. sechellia , aggregated poorly; unlike D. erecta , the food source for D. arizonae and D. sechellia are temporally and spatially abundant.…”

Section: Resultsmentioning

confidence: 65%

Conservation of the behavioral and transcriptional response to social experience among Drosophilids

Shultzaberger

Johnson

Wagner

et al. 2018

Genes Brain and Behavior

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While social experience has been shown to significantly alter behaviors in a wide range of species, comparative studies that uniformly measure the impact of a single experience across multiple species have been lacking, limiting our understanding of how plastic traits evolve. To address this, we quantified variations in social feeding behaviors across 10 species of Drosophilids, tested the effect of altering rearing context on these behaviors (reared in groups or in isolation) and correlated observed behavioral shifts to accompanying transcriptional changes in the heads of these flies. We observed significant variability in the extent of aggressiveness, the utilization of social cues during food search, and social space preferences across species. The sensitivity of these behaviors to rearing experience also varied: socially naive flies were more aggressive than their socialized conspecifics in some species, and more reserved or identical in others. Despite these differences, the mechanism of socialization appeared to be conserved within the melanogaster subgroup as species could cross-socialize each other, and the transcriptional response to social exposure was significantly conserved. The expression levels of chemosensory-perception genes often varied between species and rearing conditions, supporting a growing body of evidence that behavioral evolution is driven by the differential regulation of this class of genes. The clear differences in behavioral responses to socialization observed in Drosophilids make this an ideal system for continued studies on the genetic basis and evolution of socialization and behavioral plasticity.

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Section: Resultsmentioning

confidence: 65%

Conservation of the behavioral and transcriptional response to social experience among Drosophilids

Shultzaberger

Johnson

Wagner

et al. 2018

Genes Brain and Behavior

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“…For spatially restricted species, such as central placed foragers, knowledge of the environment and resource distribution may contribute to consistent spatial movement patterns over time. However, short-term temporal changes in resource distribution may occur in response to environmental change within the familiar range of a species [26,27]. Here, we examine how temporal changes in resource availability elicit a response in the movement patterns of a volant species, an insectivorous bat, Myotis mystacinus.…”

Section: Introductionmentioning

confidence: 99%

Prey field switching based on preferential behaviour can induce Lévy flights

Lundy

Harrison

Buckley

et al. 2013

J. R. Soc. Interface.

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Using the foraging movements of an insectivorous bat, Myotis mystacinus, we describe temporal switching of foraging behaviour in response to resource availability. These observations conform to predictions of optimized search under the Lévy flight paradigm. However, we suggest that this occurs as a result of a preference behaviour and knowledge of resource distribution. Preferential behaviour and knowledge of a familiar area generate distinct movement patterns as resource availability changes on short temporal scales. The behavioural response of predators to changes in prey fields can elicit different functional responses, which are considered to be central in the development of stable predator -prey communities. Recognizing how the foraging movements of an animal relate to environmental conditions also elucidates the evolution of optimized search and the prevalence of discrete strategies in natural systems. Applying techniques that use changes in the frequency distribution of movements facilitates exploration of the processes that underpin behavioural changes.

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“…(); 31, Santos and Valente (); 32, Sevenster and Van Alphen (); 33, Sturtevant (); 34, Valadão and Tidon (); 35, Valadão et al . (); 36, Valente and Araujo (); 37, Valente and Araújo (); 38, Valente et al . (); 39, Vilela and Selivon (); 40, Vilela (); 41, Wheeler et al .…”

Section: Data Collection and Analysismentioning

confidence: 98%

Fruit‐breeding drosophilids (Diptera) in the Neotropics: playing the field and specialising in generalism?

Valadão

Proença

Kuhlmann

et al. 2019

Ecological Entomology

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1. Species of Drosophilidae are frequently used as model organisms, but their relationships with the environment, particularly in immature stages, remain poorly known. 2. This is the most comprehensive survey to date of fruit‐breeding drosophilids and their hosts in the Neotropics. Drosophilid host‐utilisation patterns were analysed as to geographic origin (native versus exotic) and level of specialisation. 3. The 180 species of plants recorded as drosophilid hosts are distributed across the main Angiosperm lineages and fleshy‐fruited orders; plant families that hosted the greatest number of drosophilid species were Arecaceae, Moraceae, and Myrtaceae. The 100 nominal drosophilid species recorded breeding in fruits belong to just over one‐third of Neotropical genera; most species (91) belong to Drosophila. Drosophilid species with the greatest resource breadth were Drosophila simulans, Drosophila nebulosa, and Zaprionus indianus. 4. Exotic drosophilids breed in more plant species than Neotropical drosophilids and use exotic hosts more frequently, possibly because they are generalists that have survived the trial of introduction and establishment in the Neotropics. Native drosophilids are more variable in resource breadth and sometimes adopt exotic hosts. 5. Amongst the 49 drosophilids with enough records for analysis (> 4), 48 were categorised as generalists. One possible explanation for such overwhelming generalism is the high diversity of Neotropical habitat or hosts. A second, non‐exclusive explanation, suggested by recent studies and empirically supported by the absence of host specialisation found in this study, is that drosophilids could be selective of the dominant yeasts and bacteria in host tissue, and not of the hosts themselves.

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Temporal Dynamics and Resource Availability for Drosophilid Fruit Flies (Insecta, Diptera) in a Gallery Forest in the Brazilian Savanna

Cited by 21 publications

References 44 publications

Conservation of the behavioral and transcriptional response to social experience among Drosophilids

Conservation of the behavioral and transcriptional response to social experience among Drosophilids

Prey field switching based on preferential behaviour can induce Lévy flights

Fruit‐breeding drosophilids (Diptera) in the Neotropics: playing the field and specialising in generalism?

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