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Article
Shan Su, Auteur ; Phillip Cassey, Auteur ; Ellie E. Dyer, Auteur ; Tim M. Blackburn, AuteurThe international wildlife trade is a significant source of introduced alien species, some of which proceed to become invasive and cause negative environmental and economic effects. However, not all introduced aliens establish viable populations[...]
Article
Camille Duval, Auteur ; Phillip Cassey, Auteur ; P. George Lovell, Auteur ; Ivan Mikšík, Auteur ; S. James Reynolds, Auteur ; Karen A. Spencer, AuteurEgg camouflage may explain the adaptive significance of avian eggshell pigmentation in ground-nesting species. Eggshell maculation (spots) is predominantly due to protoporphyrin, but both biliverdin (antioxidant) and protoporphyrin (pro-oxidant)[...]
Article
Camille Duval, Auteur ; Phillip Cassey, Auteur ; P. George Lovell, Auteur ; Ivan Mikšík, Auteur ; S. James Reynolds, Auteur ; Karen A. Spencer, AuteurEgg camouflage may explain the adaptive significance of avian eggshell pigmentation in ground-nesting species. Eggshell maculation (spots) is predominantly due to protoporphyrin, but both biliverdin (antioxidant) and protoporphyrin (pro-oxidant)[...]
Article
Tim M. Blackburn, Auteur ; Ellie Dyer, Auteur ; Shan Su, Auteur ; Phillip Cassey, AuteurThe most significant single event in the study of alien bird invasions occurred in 1981, with the publication of John L. Long’s seminal book “ Introduced birds of the world” (full title: Introduced birds of the world: The worldwide history, dist[...]
Article
Corey J. A. Bradshaw, Auteur ; Barry W. Brook, Auteur ; Steven Delean, Auteur ; Damien A. Fordham, Auteur ; Salvador Herrando-Pérez, Auteur ; Phillip Cassey, Auteur ; Regan Early, Auteur ; Çagan H. Sekercioglu, Auteur ; Miguel B. Araújo, AuteurGeographical range dynamics are driven by the joint effects of abiotic factors, human ecosystem modifications, biotic interactions and the intrinsic organismal responses to these. However, the relative contribution of each component remains larg[...]
Article
Golo Maurer, Auteur ; Phillip Cassey, AuteurGloss is a striking characteristic of avian eggshells that may affect both egg recognition and clutch predation. Previously, gloss has proved difficult to quantify objectively. Newly developed handheld glossmeters seem to offer a solution. We ev[...]
Article
Phillip Cassey, Auteur ; John G. Ewen, Auteur ; N. Justin Marshall, Auteur ; Misha Vorobyev, Auteur ; Tim M. Blackburn, Auteur ; Mark E. Hauber, AuteurDiversity in the colour and appearance of avian eggshells has been proposed to serve a variety of visual functions, including crypsis from predation, mimicry and discrimination in facultative and obligate brood parasitism, and sexually selected [...]
Article
Phillip Cassey, Auteur ; Ivan Mikšík, Auteur ; Steven J. Portugal, Auteur ; Golo Maurer, Auteur ; John G. Ewen, Auteur ; Erica Zarate, Auteur ; Mary A. Sewell, Auteur ; Filiz Karadas, Auteur ; Tomáš Grim, Auteur ; Mark E. Hauber, AuteurThe colourful appearance of avian eggshells is a prominent aspect of maternal reproductive effort in birds. Some differences in eggshell coloration have been reported to co-vary with various measures of maternal condition and these patterns supp[...]
Article
Shane M. Baylis, Auteur ; Phillip Cassey, Auteur ; Mark E. Hauber, Auteur
Article
Golo Maurer, Auteur ; Steven J. Portugal, Auteur ; Phillip Cassey, AuteurThe thickness of avian eggshells is used to assess shell quality in wild and domestic species, as an indicator of environmental pollution and as an adaptive explanation for shell maculation. Both direct measurements and calculated eggshell thick[...]
Article
Branislav Igic, Auteur ; Mark E. Hauber, Auteur ; Josic A. Galbraith, Auteur ; Tomáš Grim, Auteur ; Donald C. Dearborn, Auteur ; Patricia L. R. Brennan, Auteur ; Csaba Moskát, Auteur ; Pankaj K. Choudhary, Auteur ; Phillip Cassey, AuteurThe study of avian eggshell structure, including composition, pigmentation, thickness, and strength, has important ecological and economic implications. Previous investigators have used a variety of techniques to derive either direct measures or[...]
Article
Julian D. Avery, Auteur ; Phillip Cassey, Auteur ; Julie L. Lockwood, AuteurAlthough the diversity in avian plumage coloration is striking, there is little known about the rate with which colour diverges. Eastern bluebirds Sialia sialis bermudensis on the island of Bermuda are considered endemic based upon differences i[...]
Article
Kaat Brulez, Auteur ; Phillip Cassey, Auteur ; Alan Meeson, Auteur ; Ivan Mikšík, Auteur ; Simone L. Webber, Auteur ; Andrew G. Gosler, Auteur ; S. James Reynolds, AuteurEggshell maculation of most passerines is due to the deposition of the pigment protoporphyrin which is produced during biosynthesis of blood haem. Its functional significance has only received empirical attention in recent years. This interest h[...]
Article
Phillip Cassey, Auteur ; Carolyn J. Hogg, AuteurWorldwide, invasive alien species increasingly contribute to environmental change and are a massive drain on social and economic resources. In Australia, the detection of new vertebrate incursions (i.e., alien species not currently established) [...]
Article
Rebecca L. Boulton, Auteur ; Phillip Cassey, AuteurWhile understanding heat exchange between incubating adults and their eggs is central to the study of avian incubation energetics, current theory based on thermal measurements from dummy eggs reveals little about the mechanisms of this heat exch[...]
Article
Steven J. Portugal, Auteur ; Patrick J. Butler, Auteur ; Jonathan A. Green, Auteur ; Phillip Cassey, AuteurBone is continually undergoing cycles of apposition and resorption referred to as adaptive remodelling. We tested the hypothesis that captive moulting Barnacle Geese (Branta leucopsis) would show adaptive bone mineralisation during the flightles[...]
Article
Mark E. Hauber, Auteur ; Bill M. Strausberger, Auteur ; Kevin A. Feldheim, Auteur ; Justin Lock, Auteur ; Phillip Cassey, AuteurIn theory, obligate brood parasitic birds are freed from several of the temporal and spatial constraints of parental care for dependent young. Yet, similar to parental bird species, adults in several avian brood parasites show a territorial spac[...]
Article
Phillip Cassey, Auteur ; Tim M. Blackburn, Auteur ; Richard P. Duncan, Auteur ; Julie L. Lockwood, AuteurIt has been previously suggested that the characteristics that are driving the taxonomic homogenisation of the global avifauna, through the extinction of native bird species and the establishment of exotic bird species, are opposite sides of the[...]
Article
Wendy Henderson, Auteur ; Mary Bomford, Auteur ; Phillip Cassey, AuteurContext. Biological invasions are a profound contribution to human-induced environmental change. Although intentional introductions of vertebrate species have largely declined, global transport and communication networks continue to increase. As[...]
Article
Phillip Cassey, Auteur ; John G. Ewen, Auteur ; Rebecca L. Boulton, Auteur ; Filiz Karadas, Auteur ; Anders P. Moller, Auteur ; Tim M. Blackburn, AuteurMaternally deposited carotenoids are a prominent component of egg yolk and are vital for the development and growth of the embryo. In most studies of avian yolk carotenoids, eggs are destructively sampled and this may limit both the number of cl[...]
Article
Zachary Aidala, Auteur ; Nicola Chong, Auteur ; Michael G. Anderson, Auteur ; Luis Ortiz-Catedral, Auteur ; Ian G. Jamieson, Auteur ; James V. Briskie, Auteur ; Phillip Cassey, Auteur ; Brian J. Gill, Auteur ; Mark E. Hauber, AuteurThe three species of New Zealand's endemic Mohoua genus are sole hosts of the obligate brood parasitic Long-tailed Cuckoo (Eudynamys taitensis), making their intrageneric phylogenetic relationships particularly important for coevolutionary studi[...]
Article
Golo Maurer, Auteur ; Steven J. Portugal, Auteur ; Phillip Cassey, AuteurCurrent research into the evolution and adaptive function of avian eggshell pigmentation, including maculation, has focused mostly on signalling-based and structural function hypotheses but ignored the potential consequences of shell pigmentatio[...]
Article
Lenka Polacikova, Auteur ; Mark E. Hauber, Auteur ; Petr Procházka, Auteur ; Phillip Cassey, Auteur ; Marcel Honza, Auteur ; Tomáš Grim, AuteurThe rejection of eggs of brood parasites in several species of hosts is based on cues only at the blunt pole (BP) and not at the sharp pole (SP) of the foreign and own eggshell. We investigated whether intraclutch variation is confined to a spec[...]
Article
Phillip Cassey, Auteur ; Julie L. Lockwood, Auteur ; Katherine H. Fenn, AuteurWildlife managers must find ways of detecting meaningful shifts in population size or extent if they are to effectively implement recovery programs for threatened and endangered species. This task is made difficult by the oft-flawed survey infor[...]
Article
Kaat Brulez, Auteur ; Pankaj K. Choudhary, Auteur ; Golo Maurer, Auteur ; Steven J. Portugal, Auteur ; Rebecca L. Boulton, Auteur ; Simone L. Webber, Auteur ; Phillip Cassey, AuteurEggshell pattern scoring, a method to quantify the degree of surface maculation, can potentially be a quick, inexpensive and reliable method to obtain information on eggshell appearance and spot patterns. The key pigment responsible for red-brow[...]
