Author of 18 Dryad datasets

• Data from: Decreased food intake as a fecundity-dependent cost of reproduction in keelback snakes (Tropidonophis mairii, Colubridae)

  Published Mar 12, 2025. Brown, Gregory P.; Shine, Richard

  The physical burden of pregnancy may render females slower and less able to evade predation, favouring a reduction in feeding in order to avoid a reduction in survivorship. Life-history theory predicts that an organism’s optimal level of investment into reproduction depends upon whether or not the associated “costs” (such as...

  Subjects: Biological sciences Life-history evolution Natricidae reproductive effort tropical ecology

• Does a biological invasion modify host immune responses to parasite infection?

  Published Dec 13, 2024. Brown, Gregory P.; Shine, Richard; Rollins, Lee

  Biological invasions disrupt the spatial structuring of antagonistic co-evolution between host and parasites. At the same time, the shifting demographic and selective landscapes during invasion can result in rapid evolution of traits in both host and parasite. Hosts at the invasion front may reduce investment into costly immune defences and...

  Subjects: Phagocytosis Biological sciences bacteria-killing Bufo marinus ecoimmunology leucocytes local adaptation

  Primary article: Brown, Shine, Rollins. (2025) Does a biological invasion modify host immune responses to parasite infection?. Royal Society Open Science

• Data from: A biological invasion modifies host immune responses to parasite infection

  Published Aug 22, 2024. Brown, Gregory P.

  Biological invasions can disrupt the close and longstanding co-evolved relationships between host and parasites. At the same time, the shifting selective forces acting on demograpy during invasion can result in rapid evolution of traits in both host and parasite. Hosts at the invasion front may reduce investment into costly immune...

  Subjects: Phagocytosis Animal and dairy science bacteria-killing Bufo marinus ecoimmunology leucocytes local adaptation

  Primary article: Brown, Shine, Rollins. (2025) Does a biological invasion modify host immune responses to parasite infection?. Royal Society Open Science

• Data from: Effect of parasite infection and invasion history on feeding, growth and energy allocation of cane toads

  Published May 18, 2024. Brown, Gregory P.

  The energy allocation decisions that organisms make can differ between sexes and populations and be influenced by factors such as age and parasite infection. We conducted experimental parasite infections on common-garden reared cane toads originating from sites across the species’ invasive range in Australia to assess how sex, parasite infection...

  Subjects: Natural sciences energy allocation Rhabdias pseudosphaerocephala Rhinella marina

  Primary article: Crane, Rollins, Shine, et al. (2024) Effect of parasite infection and invasion history on feeding, growth, and energy allocation of cane toads. Biological Journal of the Linnean Society

• Infection success data from experimental pairings of cane toad hosts and lungworm parasites

  Published Feb 02, 2024. Brown, Gregory P.

  By imposing novel selection pressures on both participants, biological invasions can disrupt evolutionary “arms races” between hosts and parasites. A spatially replicated cross-infection experiment reveals strong divergence in the ability of lungworms (Rhabdias pseudosphaerocephala) to infect invasive cane toads (Rhinella marina) in Australia. In areas colonised for > 20 years,...

  Subjects: Animal and dairy science Bufo marinus host-parasite interactions invasion biology local adaptation local maladaptation

  Primary article: Brown, Shine, Rollins. (2024) A biological invasion modifies the dynamics of a host–parasite arms race. Proceedings of the Royal Society B: Biological Sciences

• Sexual dimorphism in aipysurine sea snakes

  Published Sep 04, 2023. Shine, Richard; Shine, Terri; Brown, Gregory; Udyawer, Vinay

  The transition from terrestrial to aquatic life by hydrophiine elapid snakes modified targets of natural selection and likely affected sexual selection also. Thus, the shift to marine life also might have affected sexual dimorphism. Our measurements of 419 preserved specimens of six species of aipysurine snakes (genera Emydocephalus and Aipysurus)...

  Subjects: Sexual selection Biological sciences Elapidae Hydrophiinae

  Primary article: Shine, Shine, Brown, et al. (2023) Sexual dimorphism in aipysurine sea snakes (Elapidae, Hydrophiinae). Royal Society Open Science

• Do changes in body mass alter white blood cell profiles and immune function in Australian cane toads (Rhinella marina)?

  Published Oct 16, 2022. Brown, Gregory P.; Hudson, Cameron; Shine, Richard

  Variation in food resources can result in dramatic fluctuations in the body condition of animals dependent on those resources. Decreases in body mass can disrupt patterns of energy allocation and impose stress, thereby altering immune function. In this study we investigated links between changes in body mass of captive cane...

  Subjects: Animal and dairy science Bufo marinus energy budget leukogram stress

  Primary article: Brown, Hudson, Shine. (2023) Do changes in body mass alter white blood cell profiles and immune function in Australian cane toads ( Rhinella marina )?. Philosophical Transactions of the Royal Society B

• Rates of dispersal of cane toads during their global invasion

  Published May 05, 2022. Shine, Richard; Alford, Ross; Blennerhasset, Ryan; Brown, Gregory; DeVore, Jayna; et al

  Invasions often accelerate through time, as dispersal-enhancing traits accumulate at the expanding range edge. How does the dispersal behaviour of individual organisms shift to increase rates of population spread? We collate data from 44 radio-tracking studies (in total, of 650 animals) of cane toads (Rhinella marina) to quantify distances moved...

  Primary article: Shine, Alford, Blennerhasset, et al. (2021) Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion. Scientific Reports

• Divergence in life-history traits among three populations of the sea snake Emydocephalus anulatus

  Published Mar 23, 2022. Shine, Richard; Brown, Gregory; Goiran, Claire

  Life-history traits such as rates of growth, survival and reproduction can vary though time within a single population, or through space among populations, due to abiotically-driven changes in resource availability. In terrestrial reptiles, parameters such as temperature and rainfall generate variation in life-histories – but other parameters likely are more...

  Subjects: Biological sciences

  Primary article: Shine, Brown, Goiran. (2022) Divergence in life-history traits among three adjoining populations of the sea snake Emydocephalus annulatus (Hydrophiinae, Elapidae). Scientific Reports

• Colour polymorphism in the sea snake Emydocephalus annulatus

  Published Mar 14, 2022. Shine, Richard; Brown, Greg; Goiran, Claire

  Evolutionary theory suggests that polymorphic traits can be maintained within a single population only under specific conditions, such as negative frequency-dependent selection or heterozygote advantage. Non-venomous turtle-headed sea snakes (Emydocephalus annulatus) living in shallow bays near Noumea in New Caledonia exhibit three colour morphs: black, black-and-white banded, and an intermediate...

  Subjects: Biological sciences Elapidae Hydrophiinae