Generic Diversity in Phase of Rhythm in Formicine Ants

McCluskey, Elwood S.

doi:10.1155/1973/91652

Cited by 12 publications

(5 citation statements)

References 22 publications

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“…This idea represented a major step in the history of ecology, leading to the development of a variety of approaches to investigate the possible role of competition from patterns of species co-occurrence [23][24][25][26][27][28][29][30]. Although competition may occur between non-congeners, and congeners may not significantly compete, in general, taxonomically closely related species are also ecologically similar, and hence subject to higher competition [31][32][33][34][35][36][37]. If competition is stronger between congeneric species, species belonging to different genera will co-occur in the same habitats more often than congeneric species, thus increasing generic diversity (because species are less concentrated into genera).…”

Section: Introductionmentioning

confidence: 99%

Elevational Patterns of Generic Diversity in the Tenebrionid Beetles (Coleoptera Tenebrionidae) of Latium (Central Italy)

et al. 2020

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The concept of generic diversity expresses the ‘diversification’ of species into genera in a community. Since niche overlap is assumed to be higher in congeneric species, competition should increase generic diversity. On the other hand, generic diversity might be lower in highly selective environments, where only species with similar adaptations can survive. We used the distribution of tenebrionid beetles in Central Italy to investigate how generic diversity varies with elevation from sea level to 2400 m altitude. Generic diversity of geophilous tenebrionids decreased sharply with elevation, whereas the generic diversity of xylophilous tenebrionids showed similarly high values across the gradient. These results suggest that geophilous species are more sensitive to variation in environmental factors, and that the advantages of close relationships (similar adaptations to harsh conditions) are greater than the possible drawbacks (competition). This is consistent with the fact that geophilous tenebrionids are mostly generalist detritivores, and hence weakly affected by competition for resources. By contrast, xylophilous species are more protected from harsh/selective conditions, but more limited by competition for microhabitats and food. Our results support the environmental filtering hypothesis for the species composition of tenebrionid beetles along an elevational gradient.

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Section: Introductionmentioning

confidence: 99%

Elevational Patterns of Generic Diversity in the Tenebrionid Beetles (Coleoptera Tenebrionidae) of Latium (Central Italy)

et al. 2020

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“…These data contrast with other data in litt . for which different nests were sampled at different times, and individual ants or parts of a colony were subjected to artificial LD experiments (e.g., McCluskey, 1973; North, 1987, 1991, 1993; Rosengren and Fortelius, 1986; Table 1). In situ, under natural LD conditions, both ant species revealed comparable ultradian, infradian, and daily rhythms.…”

Section: Discussionmentioning

confidence: 99%

First In Situ Identification of Ultradian and Infradian Rhythms, and Nocturnal Locomotion Activities of Four Colonies of Red Wood Ants (Formica rufa-Group)

Berberich

Berberich²,

Ellison

et al. 2019

J Biol Rhythms

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In situ activity patterns of 2 Formica rufa-group species (F. pratensis; F. polyctena) were continuously studied at 4 different red wood-ant nests for 6 months in each of the years 2010, 2011, 2012, and 2016 and related to weather factors and variations in the Earth's magnetic field. The in situ activity patterns of both species were similarly periodic and exhibited ultradian, and short-and long infradian rhythms under natural LD conditions. Crepuscular and nocturnal activities shorter than or equal to 4 h were observed in both species, especially at the new moon and first quarter after the astronomical twilight in a period of darkness in fall. We hypothesize that local variability in the Earth's magnetic field affects these long-term activity patterns, whereas humidity and temperature were more strongly associated with ultradian rhythms (less than 20 h).

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“…In several species of ants the winged males display rhythmic aggregation, which persists with remarkable precision for several weeks under LD and DD conditions in the laboratory (Kannowski 1959(Kannowski , 1963McCluskey 1958McCluskey , 1965McCluskey , 1967McCluskey , 1974McCluskey and Soong 1979). The virgin queens (winged females), on the other hand, display a circadian rhythm of activity, in phase with the activity of the males (McCluskey 1967;McCluskey and Carter 1969).…”

Section: Discussionmentioning

confidence: 99%

“…The winged females of Veromessor andrei and V. pergandei showed daily activity peaks that corresponded to their time of mating flight in the field. The activity level of the winged females started to increase even before the sun had set, and the activity peaks maintained definite phase relationship with the external day, which could be changed by manipulating LD cycles (McCluskey 1958(McCluskey , 1965(McCluskey , 1967(McCluskey , 1974(McCluskey , 1992McCluskey and Soong 1979). Activity/rest cycles also persisted with circadian periodicity under constant dim light in an artificial nest (McCluskey 1992), which could be reproduced even in constant temperature conditions, and when isolated from other castes.…”

Section: Introductionmentioning

confidence: 99%

“…Several species of ants exhibit circadian rhythms of activity/rest under controlled conditions in the laboratory (McCluskey 1958(McCluskey , 1965(McCluskey , 1967(McCluskey , 1974(McCluskey , 1992McCluskey and Soong 1979), and the activity/rest cycles of some species of ants entrained to light/dark (LD) cycles of 12:12 h or to 12:12 h cool/warm cycles in constant dark (DD) regimes (Rosengren 1977;Rosengren and Fortelius 1986). Furthermore, mating flights of several species of ants appear to be timed by circadian clocks.…”

Section: Introductionmentioning

confidence: 99%

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Clocks for sex: loss of circadian rhythms in ants after mating?

Sharma

Lone

Goel

2004

Naturwissenschaften

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This paper describes experiments on the locomotor activity rhythm of queens of the ant species Camponotus compressus, which were performed to investigate the consequences of mating on circadian clocks. Locomotor activity rhythm of virgin and mated queens was monitored individually under constant conditions of the laboratory. The locomotor activity rhythm of virgin queens entrained to a 24 h (12:12 h) laboratory light/dark (LD) cycle and free-ran under constant dim red light (RR) with a free-running period ( tau) of approximately 24 h. The locomotor activity of the mated queens on the other hand was arrhythmic during the period when they were laying eggs, and robust rhythmicity appeared soon after the egg-laying phase was over. The tau of the locomotor activity rhythm of mated queens was significantly greater than that of virgin queens. These results are contrary to the commonly held belief that the role of circadian clocks in ant queens ceases after mating flights, thus suggesting that circadian clocks of ant queens are adaptively plastic and display activity patterns, perhaps depending on their physiological state and tasks in the colony.

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Generic Diversity in Phase of Rhythm in Formicine Ants

Cited by 12 publications

References 22 publications

Elevational Patterns of Generic Diversity in the Tenebrionid Beetles (Coleoptera Tenebrionidae) of Latium (Central Italy)

Elevational Patterns of Generic Diversity in the Tenebrionid Beetles (Coleoptera Tenebrionidae) of Latium (Central Italy)

First In Situ Identification of Ultradian and Infradian Rhythms, and Nocturnal Locomotion Activities of Four Colonies of Red Wood Ants (Formica rufa-Group)

Clocks for sex: loss of circadian rhythms in ants after mating?

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