Mr John Gould

Mr John Gould

Casual Academic

School of Environmental and Life Sciences

Career Summary

Biography

Current PhD candidate at the University of Newcastle, Australia, studying the life history and reproductive biology of Australian amphibians. Broadly speaking, my research interests lie in understanding the adaptive purpose of animal behaviours, as well as how species have evolved in response to the selecting pressures of their environment, not only from a natural history perspective but to apply this knowledge to improve the efficacy of management programs. My goal is to acquire further experience in a laboratory position, where I hope to be able to utilise my skills to assist in biology or biochemistry related research. 

Qualifications

  • Bachelor of Science (Biological Science), University of Newcastle

Keywords

  • animal behaviour
  • biology
  • conservation
  • evolution
  • natural history
  • reproductive biology

Professional Experience

UON Appointment

Title Organisation / Department
Casual Academic University of Newcastle
School of Environmental and Life Sciences
Australia
Casual Academic University of Newcastle
School of Environmental and Life Sciences
Australia
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (16 outputs)

Year Citation Altmetrics Link
2021 Gould J, 'Hauling up a hefty meal: Long-Jawed spider (Araneae, Tetragnathidae) uses silk lines to transport large prey vertically through the air in the absence of a web', Ethology, 127 438-442 (2021) [C1]

The most well-known use of silk among spiders is the formation of webs to capture flying prey. However, spiders have evolved many different foraging strategies involving silk, inc... [more]

The most well-known use of silk among spiders is the formation of webs to capture flying prey. However, spiders have evolved many different foraging strategies involving silk, including the capture and subsequent manipulate of prey prior to consumption. Herein, I report on the use of silk lines by a long-jawed spider from the Tetragnatha genus to move a large prey item vertically through the air. Field observations revealed a long-jawed spider attaching multiple silk lines across the body of an adult dragonfly that had recently emerged from its final moult and attaching these threads to overlying vegetation to incrementally haul the prey item from the surface of a waterbody. My observations suggest that some Tetragnatha spiders are able to move large prey items that are much heavier then themselves using a series of silk lines that allow lift to be accomplished in a gradual and controlled manner. This is an interesting finding, given that other individuals from the same population were using web structures to passively catch much smaller, flying prey. This indicates that some Tetragnatha spiders not only participate in the mobile pursuit of prey but that they possess multiple foraging strategies that may allow them to exploit a larger number of prey types.

DOI 10.1111/eth.13137
Citations Web of Science - 1
2021 Gould J, Valdez JW, 'Terrestrial slug uses a vertical bridge of mucus to descend rapidly from heights', AUSTRAL ECOLOGY, (2021)
DOI 10.1111/aec.13011
2021 Gould J, Clulow J, Rippon P, Doody JS, Clulow S, 'Complex trade-offs in oviposition site selection in a cannibalistic frog', Animal Behaviour, 175 75-86 (2021) [C1]

For oviparous animals such as amphibians, the presence or absence of conspecifics can influence site selection, with each life history stage potentially influencing the decision-m... [more]

For oviparous animals such as amphibians, the presence or absence of conspecifics can influence site selection, with each life history stage potentially influencing the decision-making process in a different manner. In the present study, we tested the effect of conspecific life history stage on oviposition site selection in the sandpaper frog, Lechriodus fletcheri. We quantified preferences for spawning in pools that were unused by conspecifics, as well as pools with conspecific spawn or tadpoles present, or both. The study included two ecological contexts: a system of naturally occurring breeding pools and a field experiment with 40 artificial pools that controlled for habitat variation. Mothers preferred to oviposit in pools that already contained conspecific spawn, despite the likelihood of intense resource competition upon offspring hatching. This could be due to the potential benefits obtained by providing offspring access to a significant nutrient supply upon hatching via cannibalism of conspecific tadpoles and might be an important adaptation for completing tadpole development in highly ephemeral and resource-limited pools prior to desiccation. In contrast, mothers avoided ovipositing in pools with conspecific tadpoles, a probable adaptation to avoid their own offspring from becoming victims of cannibalism themselves prior to hatching. Such nuances in the effect of conspecific presence on offspring survival highlight the often complex decision-making process that amphibians need to make when selecting oviposition sites, as well as the influence cannibalism can have on the evolution of reproductive behaviour.

DOI 10.1016/j.anbehav.2021.02.021
Co-authors John Clulow, Simon Clulow, Paul Rippon
2020 Gould J, 'Build me up to break me down: frothed spawn in the sandpaper frog, Lechriodus fletcheri, is formed by female parents and later broken down by their offspring', Australian Journal of Zoology, 67 153-161 (2020) [C1]
DOI 10.1071/ZO20038
Citations Scopus - 1
2020 Gould J, Clulow J, Clulow S, 'Front Cover', Ethology, 126 (2020)
DOI 10.1111/eth.12895
2020 Gould J, 'Build me up to break me down: Frothed spawn in the sandpaper frog, Lechriodus fletcheri, is formed by female parents and later broken down by their offspring (2020)
DOI 10.1101/2020.02.06.937409
2020 Gould J, Clulow J, Clulow S, 'Food, not friend: Tadpoles of the sandpaper frog (Lechriodus fletcheri) cannibalise conspecific eggs as a food resource in ephemeral pools', Ethology, 126 486-491 (2020) [C1]
DOI 10.1111/eth.12995
Citations Scopus - 2Web of Science - 6
Co-authors Simon Clulow, John Clulow
2019 Gould J, Valdez JW, Upton R, 'Adhesive defence mucus secretions in the red triangle slug (Triboniophorus graeffei) can incapacitate adult frogs', ETHOLOGY, 125 587-591 (2019) [C1]
DOI 10.1111/eth.12875
Citations Scopus - 6Web of Science - 8
Co-authors Rose Upton Uon
2019 Gould J, 'Tadpoles of the sandpaper frog, Lechriodus fletcheri, hunt mosquito larvae in ephemeral pools', Australian Journal of Zoology, 67 9-11 (2019) [C1]
DOI 10.1071/ZO19065
2019 Gould J, Valdez JW, Clulow J, Clulow S, 'Diving beetle offspring oviposited in amphibian spawn prey on the tadpoles upon hatching', ENTOMOLOGICAL SCIENCE, 22 393-397 (2019) [C1]
DOI 10.1111/ens.12381
Citations Scopus - 5Web of Science - 4
Co-authors Simon Clulow, John Clulow
2019 Gould J, Valdez J, Upton R, 'Adhesive defence mucus secretions in the red triangle slug (Triboniophorus graeffei) can incapacitate adult frogs (2019)
DOI 10.1101/544775
2019 Gould J, Valdez J, Clulow S, Clulow J, 'Diving beetle offspring oviposited in amphibian spawn prey on the tadpoles upon hatching (2019)
DOI 10.1101/666008
2019 Hayward MW, Scanlon RJ, Callen A, Howell LG, Klop-Toker KL, Di Blanco Y, et al., 'Reintroducing rewilding to restoration Rejecting the search for novelty', Biological Conservation, 233 255-259 (2019) [C1]
DOI 10.1016/j.biocon.2019.03.011
Citations Scopus - 17Web of Science - 14
Co-authors Matthew Hayward, Simon Clulow, John Clulow, Andrea Griffin, Kaya Klop-Toker, Anita Chalmers, John Rodger, Alex Callen, Rose Upton Uon
2018 Clulow S, Gould J, James H, Stockwell M, Clulow J, Mahony M, 'Elevated salinity blocks pathogen transmission and improves host survival from the global amphibian chytrid pandemic: Implications for translocations', JOURNAL OF APPLIED ECOLOGY, 55 830-840 (2018) [C1]
DOI 10.1111/1365-2664.13030
Citations Scopus - 13Web of Science - 14
Co-authors Simon Clulow, Michelle Stockwell, John Clulow
Gould J, 'Safety Bubbles: A Review of the Proposed Functions of Froth Nesting among Anuran Amphibians', Ecologies, 2 112-137
DOI 10.3390/ecologies2010006
Gould J, Beranek C, Valdez J, Mahony M, 'Quality versus quantity: The balance between egg and clutch size among Australian amphibians is related to life history and environmental conditions
DOI 10.1101/2020.03.15.992495
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Mr John Gould

Positions

Casual Academic
School of Environmental and Life Sciences
College of Engineering, Science and Environment

Research Assistant
School of Environmental and Life Sciences
College of Engineering, Science and Environment

Casual Senior Research Assistant
School of Environmental and Life Sciences
College of Engineering, Science and Environment

Casual Research Assistant
School of Environmental and Life Sciences
College of Engineering, Science and Environment

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