{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:51:29Z","timestamp":1791247889131,"version":"4.1.0"},"reference-count":54,"publisher":"Osmylus Scientific Publishers","issue":"3-4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Odonatologica"],"published-print":{"date-parts":[[2024,12,1]]},"abstract":"<jats:p>We investigated communal nocturnal roosting aggregations of Cratilla lineata in the Chia-Ling Lake area in Tainan, Taiwan. Communal roosting began during the colder months from late October to mid-March. The dragonflies roosted 2\u20134 m above the ground on slender vines such as Bauhinia championii, Dalbergia benthamii, Hiptage benghalensis, and Pothos chinensis, under open canopies along a forest path. The aggregations exhibited a sex ratio predominantly skewed towards males and their numbers were negatively correlated with daily mean temperature, indicating that more dragonflies roost as temperatures decrease. The dragonflies showed fidelity to specific roosts and vines. Roosting began between 15:30 h and 17:00 h CST (UTC+8) when light intensity was high (252\u20133 607 lux). They departed between 08:50 h and 12:00 h, 2\u20136 hours after sunrise, with light levels ranging from 1 103 to 9 567 lux. The mechanisms and adaptive value of this behaviour remain open to speculation.<\/jats:p>","DOI":"10.60024\/odon.v53i3-4.a8","type":"journal-article","created":{"date-parts":[[2024,12,9]],"date-time":"2024-12-09T08:09:21Z","timestamp":1733731761000},"page":"385-407","source":"Crossref","is-referenced-by-count":1,"title":["Cool season communal roosting of Cratilla lineata in a Taiwanese submontane forest (Odonata: Libellulidae)"],"prefix":"10.60024","volume":"53","author":[{"given":"Chih-Hsuan","family":"Cheng","sequence":"first","affiliation":[{"name":"Department of Ecology and Environmental Resources, National University of Tainan, 33 Su-Lin Street, Section 2, Tainan 700, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chia-Hsuan","family":"Hsu","sequence":"additional","affiliation":[{"name":"Biodiversity Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kent A.","family":"Hatch","sequence":"additional","affiliation":[{"name":"Department of Biology, Long Island University \u2013 Post, Brookville, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenbe","family":"Hwang","sequence":"additional","affiliation":[{"name":"Department of Ecology and Environmental Resources, National University of Tainan, 33 Su-Lin Street, Section 2, Tainan 700, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Szu-Lung","family":"Chen","sequence":"additional","affiliation":[{"name":"Taipei Zoo, 30 Xin Kuang Road, Sec 2 Mu Zha Wen Shan Taipei 116, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuan-Mou","family":"Chang","sequence":"additional","affiliation":[{"name":"Department of Ecology and Environmental Resources, National University of Tainan, 33 Su-Lin Street, Section 2, Tainan 700, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"39637","reference":[{"key":"1","doi-asserted-by":"crossref","unstructured":"A.I. Bijleveld, M. Egas, J.A. Van Gils, et al.  \"Oikos.\"  119, \"Beyond the information centre hypothesis: communal roosting for information on food, predators, travel companions and mates?\" 277- 285 (2010)","DOI":"10.1111\/j.1600-0706.2009.17892.x"},{"key":"2","doi-asserted-by":"crossref","unstructured":"G. Blanco  and J.L. Tella  \"Animal Behaviour.\"  57, \"Temporal, spatial and social segregation of redbilled choughs between two types of communal roost: a role for mating and territory acquisition.\" 1219-1227 (1999)","DOI":"10.1006\/anbe.1999.1103"},{"key":"3","doi-asserted-by":"crossref","unstructured":"A. Borkenstein  and R. J\u00f6dicke  \"Odonatologica.\"  51, \"Thermoregulatory behaviour of Sympetrum striolatum at low temperatures with special reference to the role of direct sunlight (Odonata: Libellulidae).\" 83-109 (2022)","DOI":"10.60024\/odon.v51i1-2.a5"},{"key":"4","unstructured":"M.H. Cao, W.Q. Ye, X.L. Chen,  \"Field guide of 120 species of dragonflies in Taiwan.\"  (2005)"},{"key":"5","unstructured":"C. Chen,  \"The impact of climate change on the risk of water shortage for Tseng-Wen Reservoir. Thesis, Hydraulic and Ocean Engineering.\"  (2012)"},{"key":"6","unstructured":"V. Clausnitzer,  \"Odonatologica.\"  25, \"Territoriality in Notio-themis robertsi Fraser (Anisoptera: Libellulidae).\" 335-345 (1996)"},{"key":"9","doi-asserted-by":"crossref","unstructured":"P.K. Eason  and P.V. Switzer  \"International Journal of comparative Psychology.\"  19, \"Spatial learning in dragonflies.\" 268-281 (2006)","DOI":"10.46867\/IJCP.2006.19.03.07"},{"key":"10","unstructured":"L.A. Eiserer,  \"Bird Behavior.\"  5, \"Communal roosting in birds.\" 61-80 (1984)"},{"key":"11","doi-asserted-by":"crossref","unstructured":"S.D. Finkbeiner,  \"Journal of the Lepidopterists' Society.\"  68, \"Communal roosting in Heliconius butterflies (Nymphalidae): roost recruitment, establishment, fidelity, and resource use trends based on age and sex.\" 10-16 (2014)","DOI":"10.18473\/lepi.v68i1.a2"},{"key":"12","doi-asserted-by":"crossref","unstructured":"S.D. Finkbeiner, A.D. Briscoe, R.D. Reed,  \"Proceedings of the Royal Society of London (B, Biological Sciences).\"  279, \"The benefit of being a social butterfly: communal roosting deters predation.\" 2769-2776 (2012)","DOI":"10.1098\/rspb.2012.0203"},{"key":"13","doi-asserted-by":"crossref","unstructured":"W.A. Foster  and J.E. Treherne  \"Nature.\"  293, \"Evidence for the dilution effect in the selfish herd from fish predation on a marine insect.\" 466-467 (1981)","DOI":"10.1038\/293466a0"},{"key":"14","unstructured":"R.M. Gambles,  \"The Nigerian Field.\"  36, \"Dragonfly dormitories.\" 166-170 (1971)"},{"key":"15","unstructured":"\"The Catalogue of Life Partnership: The World Odonata List. Cratilla lineata (Brauer, 1878).\"  (2024)"},{"key":"16","doi-asserted-by":"crossref","unstructured":"G.F. Grether  and P.V. Switzer  \"Animal Behaviour.\"  60, \"Mechanisms for the formation and maintenance of traditional night roost aggregations in a territorial damselfly.\" 569-579 (2000)","DOI":"10.1006\/anbe.2000.1511"},{"key":"17","doi-asserted-by":"crossref","unstructured":"W.D. Hamilton,  \"Journal of theoretical Biology.\"  31, \"Geometry for the selfish herd.\" 295-311 (1971)","DOI":"10.1016\/0022-5193(71)90189-5"},{"key":"18","unstructured":"A. Hassan,  \"Odonatologica.\"  5, \"Studies on the roosting behaviour of Palpopleura lucia lucia (Drury) and Acisoma panorpoides inflatum Selys (Anisoptera: Libellulidae).\" 323-329 (1976)"},{"key":"19","unstructured":"F.S. Hu  and C.H. Ma  \"Taiwanese Journal of entomological Studies.\"  3, \"Notes on communal roosting behavior in Potamarcha congener (Odonata: Libellulidae) in Taiwan.\" 27-31 (2018)"},{"key":"20","doi-asserted-by":"crossref","unstructured":"M. Hykel, F. Harabi\u0161, A. Doln\u00fd,  \"Entomological Science.\"  21, \"Diel changes in habitat use by dragonflies: Nocturnal roosting site selection by the threatened dragonfly Sympetrum depressiusculum (Odonata: Libellulidae).\" 154-163 (2018)","DOI":"10.1111\/ens.12292"},{"key":"21","unstructured":"A. Jangid, D. Meena, D. Yadav, et al.  \"Zoo's Print.\"  32, \"Roosting behaviour of greynite ghost dragonfly.\" 41-44 (2017)"},{"key":"22","unstructured":"K.J. Joseph  and A.R. Lahiri  \"Advances in Odonatology.\"  4, \"The diel patterns of communal roosting behaviour in Potamarcha congener (Rambur) (Anisoptera: Libellulidae).\" 45-52 (1989)"},{"key":"23","unstructured":"E. Kappes  and W. Kappes  \"Mercuriale.\"  13, \"Ein Schlafplatz von M\u00e4nnchen der Gro\u00dfen Pechlibelle Ischnura elegans in Mecklenburg-Vorpommern.\" 43-44 (2013)"},{"key":"24","unstructured":"M. Koshkin, A. Schr\u00f6ter, H. Wildermuth,  \"Odonatologica.\"  45, \"The \u2018waterfall spectacle\u2019 of Libellula quadrimaculata-aggregations (Odonata: Libellulidae).\" 213-224 (2016)"},{"key":"25","doi-asserted-by":"crossref","unstructured":"S.E. Lewis,  \"Journal of Mammalogy.\"  76, \"Roost fidelity of bats: a review.\" 481-496 (1995)","DOI":"10.2307\/1382357"},{"key":"26","doi-asserted-by":"crossref","unstructured":"J.N. Liu  and W.H. Karasov  \"Journal of comparative Physiology (B).\"  181, \"Hibernation in warm hibernacula by free-ranging Formosan leafnosed bats, Hipposideros terasensis, in subtropical Taiwan.\" 125-135 (2011)","DOI":"10.1007\/s00360-010-0509-3"},{"key":"27","doi-asserted-by":"crossref","unstructured":"J.A. Lojewski  and P.V. Switzer  \"Behavioral Ecology and Sociobiology.\"  69, \"The role of landmarks in territory maintenance by the black saddlebags dragonfly, Tramea lacerata.\" 347-355 (2015)","DOI":"10.1007\/s00265-014-1847-z"},{"key":"28","doi-asserted-by":"crossref","unstructured":"P.E. Lutz  and A.R. Pittman  \"Ecology.\"  51, \"Some ecological factors influencing a community of adult Odonata.\" 279-284 (1970)","DOI":"10.2307\/1933664"},{"key":"29","unstructured":"J. Mallet,  \"National geographic Research.\"  2, \"Gregarious roosting and home range in Heliconius butterflies.\" 198-215 (1986)"},{"key":"30","doi-asserted-by":"crossref","unstructured":"M.L. May  and J.M. Baird  \"Journal of Insect Behavior.\"  15, \"A comparison of foraging behavior in two \u201cpercher\u201d dragonflies, Pachydiplax longipennis and Erythemis simplicicollis (Odonata: Libellulidae).\" 765-778 (2002)","DOI":"10.1023\/A:1021171306468"},{"key":"31","unstructured":"P.L. Miller,  \"Odonatologica.\"  18, \"Communal roosting in Potamarcha congener (Rambur) and its possible functions (Anisoptera: Libellulidae).\" 179-194 (1989)"},{"key":"32","doi-asserted-by":"crossref","unstructured":"K. Neubauer  and G. Rehfeldt  \"Entomologia generalis.\"  19, \"Roosting site selection in the damselfly species Calopteryx haemorrhoidalis (Odonata: Calopterygidae).\" 291-302 (1995)","DOI":"10.1127\/entom.gen\/19\/1995\/291"},{"key":"33","unstructured":"A.S. Opaev  and E.N. Panov  \"Odonatologica.\"  45, \"Space use in territorial and nonterritorial male Calopteryx splendens (Odonata: Calopterygidae).\" 57-76 (2016)"},{"key":"34","unstructured":"M.J. Parr  and M. Parr  \"Odonatologica.\"  3, \"Studies on the behaviour and ecology of Nesciothemis nigeriensis Gambles (Anisoptera: Libellulidae).\" 21-47 (1974)"},{"key":"35","doi-asserted-by":"crossref","unstructured":"D.R. Paulson,  \"Notulae odonatologicae.\"  9, \"Nocturnal roosting of neotropical libellulid dragonflies: perhaps only Orthemis roosts in groups.\" 285-290 (2021)","DOI":"10.60024\/zenodo.4746216"},{"key":"36","doi-asserted-by":"crossref","unstructured":"D.R. Paulson, A. Landeira-Dabarca, E. Haave-Audet,  \"Notulae odonatologicae.\"  9, \"First nocturnal roosting aggregations of dragonflies reported from the New World tropics.\" 263-268 (2020)","DOI":"10.60024\/zenodo.4268593"},{"key":"37","doi-asserted-by":"crossref","unstructured":"H.R. Pulliam,  \"Journal of theoretical Biology.\"  38, \"On the advantages of flocking.\" 419-422 (1973)","DOI":"10.1016\/0022-5193(73)90184-7"},{"key":"38","unstructured":"J.E. Rawlins  and R.C. Lederhouse  \"Journal of the Lepidopterists' Society.\"  32, \"The influence of environmental factors on roosting in the black swallowtail, Papilio poly-xenes asterius Stoll (Papilionidae).\" 145-159 (1978)"},{"key":"39","unstructured":"G.E. Rehfeldt,  \"Odona-tological Monographs.\"  1, \"Natural enemies, parasites and reproduction of Odonata.\" 1-173 (1995)"},{"key":"40","doi-asserted-by":"crossref","unstructured":"G. Roberts,  \"Animal Behaviour.\"  51, \"Why individual vigilance declines as group size increases.\" 1077-1086 (1996)","DOI":"10.1006\/anbe.1996.0109"},{"key":"41","doi-asserted-by":"crossref","unstructured":"P. Soini,  \"Folia prima-tologica.\"  49, \"Ecology of the saddlezack tamarin Saguinus fuscicollis illigeri on the Rio Pacaya, northeastern Peru.\" 11-32 (1987)","DOI":"10.1159\/000156305"},{"key":"42","doi-asserted-by":"crossref","unstructured":"P.V. Switzer,  \"Evolutionary Ecology.\"  7, \"Site fidelity in predictable and unpredictable habitats.\" 533-555 (1993)","DOI":"10.1007\/BF01237820"},{"key":"43","doi-asserted-by":"crossref","unstructured":"P.V. Switzer,  \"Animal Behaviour.\"  53, \"Factors affecting site fidelity in a territorial animal, Perithemis tenera.\" 865-877 (1997)","DOI":"10.1006\/anbe.1996.0352"},{"key":"44","doi-asserted-by":"crossref","unstructured":"P.V. Switzer  and G.F. Grether  \"Behaviour.\"  137, \"Characteristics and possible functions of traditional night roosting aggregations in rubyspot damselflies.\" 401-416 (2000)","DOI":"10.1163\/156853900502141"},{"key":"45","unstructured":"J.R.G. Turner,  \"Journal of the Lepidopterists' Society.\"  29, \"Communal roosting in relation to warning colour in two heliconiine butterflies (Nymphalidae).\" 221-226 (1975)"},{"key":"46","unstructured":"K. Vulinec,  \"Insect defenses.\"  \"Collective security: aggregation by insects as a defense.\" 251- 288 (1990)"},{"key":"47","unstructured":"D.A. Waller  and L.E. Gilbert  \"Journal of the Lepidopterists' Society.\"  36, \"Roost recruitment and resource utilization: observations on a Heliconius charitonia L. roost in Mexico (Nymphalidae).\" 178-184 (1982)"},{"key":"48","unstructured":"L.Z. Wang,  \"Dragonflies of Taiwan.\"  (2000)"},{"key":"49","doi-asserted-by":"crossref","unstructured":"P. Ward,  \"Ibis.\"  107, \"Feeding ecology of the blackfaced dioch Quelea quelea in Nigeria.\" 173-214 (1965)","DOI":"10.1111\/j.1474-919X.1965.tb07296.x"},{"key":"50","doi-asserted-by":"crossref","unstructured":"P. Ward  and A. Zahavi  \"Ibis.\"  115, \"The importance of certain assemblages of birds as \u201cinformation-centres\u201d for food-finding.\" 517-534 (1973)","DOI":"10.1111\/j.1474-919X.1973.tb01990.x"},{"key":"51","unstructured":"\"Emeraldbanded skimmer Cratilla lineata.\"  (2024)"},{"key":"52","unstructured":"C.Y. Yeh,  \"Resource use of three sympatric insectivorous bats in Kenting National Park.\"  (2021)"},{"key":"53","doi-asserted-by":"crossref","unstructured":"A. Zahavi,  \"Behavioral Ecology.\"  7, \"The evolution of communal roosts as information centers and the pitfall of group selection: a rejoinder to Richner and Heeb.\" 118-119 (1996)","DOI":"10.1093\/beheco\/7.1.118"},{"key":"54","doi-asserted-by":"crossref","unstructured":"Y.Q. Zhang, J.M. Chen, J.R. Miller,  \"Agricultural and Forest Meteorology.\"  133, \"Determining digital hemispherical photograph exposure for leaf area index estimation.\" 166-181 (2005)","DOI":"10.1016\/j.agrformet.2005.09.009"},{"key":"8","unstructured":"P.S. Corbet,  \"Dragonflies: Behavior and ecology of Odonata.\"  (1999)"},{"key":"7","unstructured":"P.S. Corbet,  \"A biology of dragonflies.\"  (1962)"}],"container-title":["Odonatologica"],"original-title":[],"deposited":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T23:59:28Z","timestamp":1791244768000},"score":1,"resource":{"primary":{"URL":"https:\/\/bioone.org\/journals\/odonatologica\/volume-53\/issue-3-4\/odon.v53i3-4.a8\/Cool-season-communal-roosting-of-Cratilla-lineata-in-a-Taiwanese\/10.60024\/odon.v53i3-4.a8.full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,12,1]]},"references-count":54,"journal-issue":{"issue":"3-4","published-online":{"date-parts":[[2024,12,1]]}},"URL":"https:\/\/doi.org\/10.60024\/odon.v53i3-4.a8","relation":{},"ISSN":["0375-0183","0375-0183"],"issn-type":[{"value":"0375-0183","type":"print"},{"value":"0375-0183","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,12,1]]}}}