Dawson M. Brown and Matthew S. Lattanzio


Intraspecific social dominance hierarchies should be influenced by environmental variation; however, in colour polymorphic species, dominance hierarchies are often assumed fixed, and thus insensitive to environmental variability. We ran a series of experiments using the colour polymorphic long-tailed brush lizard (Urosaurus graciosus) to challenge this assumption. We staged contests between orange and yellow morph males over a single heated perch, two perches at the same temperature, or two perches differing in temperature. Our first experiment revealed that orange-throated males are socially dominant. However, this hierarchy collapsed in our other experiments as yellow males became more aggressive. Interestingly, both males only ever secured their own perch where the perches differed in temperature. These findings mirror observations of morph behavioural flexibility in nature and studies of behaviour–environment interactions in non-polymorphic taxa. We conclude that colour morphs may have an underappreciated ability to assess resource-level changes and respond with concomitant flexibility in behaviour.

Brown, Keven, Heravi, Najib Mayel, Khodaverdian, Shahram, Melvin-Koushki, Matthew and Pakatchi, Ahmad

James W. Pellegrino, Susan R. Goldman, Matthew Brown, Banu Oney, Denise Conanan Nacu and Robert Plants

Alizadeh, Mahbanoo, Bahramian, Ali, Brown, Keven, Bulookbashi, Ali A., Gholami, Rahim, Gholami, Yadollah, Jozi, Mohammad Reza, Manouchehri, Faramarz Haj, Melvin-Koushki, Matthew, Negahban, Farzin, Pakatchi, Ahmad, Poor, Daryoush Mohammad, Sajjadi, Sadeq, Shah-Kazemi, Reza, Tareh, Masoud and Waley, Muhammad Isa

Indro Nugroho-Heins, Clara Brakel-Papenhuyzen, László Sluimers, Shigeru Sato, Karel Steenbrink, P.N. Holtrop, Jaap Timmer, Aletta Biersack, Peter Boomgaard, Christine Dobbin, Ian Brown, George Hicks, Ian Brown, Fukuda Shozo, Matthew I. Cohen, Laurie J. Sears, J. Goor, Anthony Reid, J. Goor, Anthony Reid, David Henley, Saya S. Shiraishi, Gerrit Knaap and P. Jobse

- Peter Boomgaard, Christine Dobbin, Asian entrepreneurial minorities; Conjoint communities in the making of the world economy, 1570-1940. Richmond: Curzon Press, 1996, xiii + 246 pp. [Nordic Institute of Asian Studies Monograph Series 71.] - Ian Brown, Fukuda Shozo, With sweat and abacus; Economic roles of Southeast Asian Chinese on the eve of World War II, edited by George Hicks. Singapore: Select Books, 1995, xii + 246 pp. - Ian Brown, George Hicks, Chinese organisations in Southeast Asia in the 1930s. Singapore: Select Books, 1996, xv + 168 pp. - Matthew I. Cohen, Laurie J. Sears, Shadows of empire; Colonial discourse and Javanese tales. Durham/London: Duke University Press, 1996, xxi + 349 pp. - J. van Goor, Anthony Reid, Southeast Asia in the age of commerce 1450-1680. Vol. II: Expansion and crisis. New Haven/London: Yale University Press, 1993, xv + 390 pp. - J. van Goor, Anthony Reid, Southeast Asia in the age of commerce 1450-1680. Vol. I: The lands below the winds. New Haven/London: Yale University Press, 1988, xvi + 275 pp. - David Henley, Saya S. Shiraishi, Young heroes; The Indnesian family in politics. Ithaca/New York: Southeast Asia Program, Cornell University, Southeast Asia Program Publications, 1997, 183 pp. [Studies on Southeast Asia 22.] - Gerrit Knaap, P. Jobse, Bronnen betreffende de Midden-Molukken 1900-1942. Den Haag: Instituut voor Nederlandse Geschiedenis, 1997. 4 volumes. Rijks Geschiedkundige Publicatiën, Kleine Serie, 81, 82, 83, 84. Volume 1 bewerkt door P. Jobse, 2 en 3 door Ch.F. van Fraassen, 4 door Ch.F van Fraassen en P. Jobse. xii + 578, xii + 578, xii + 711, x + 655, xi + 261 pp., Ch. F. van Fraassen (eds.) - Indro Nugroho-Heins, Clara Brakel-Papenhuyzen, Classical Javanese dance; The Surakarta tradition and its terminology. Leiden: KITLV Press, 1995, xi + 252 pp. [Verhandelingen 155.] - László Sluimers, Shigeru Sato, War, nationalism and peasants; Java under the Japanese occupation, 1942-1945. Armonk, New York: Sharpe, St. Leonards: Allen and Unwin, 1994. xx + 280 pp. [ASAA Southeast Asia Publication Series.] - Karel Steenbrink, P.N. Holtrop, Een bundel opstellen over de Zending van de Gereformeerde Kerken in Nederland ter gelegenheid van de honderdjarige hedenking van de Synode van Middelburg 1896. Kampen: Werkgroep voor de Geschiedenis van de Nederlandse Zending en Overzeese Kerken, 1996, 199 pp. - Jaap Timmer, Aletta Biersack, Papuan borderlands; Huli, Duna, and Ipili perspectives on the Papua New Guinea Highlands. Ann Arbor: University of Michigan Press, 1995, xii + 440 pp., bibliography, index.