Guido J. Parra

Scopus Publications

Whole-Genome-Sequencing Reveals Demographic History and Patterns of Parallel Adaptive Evolution in Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) Across Coastal Australian Seascapes
Svenja M. Marfurt, Adrien Tran Lu Y, Benjamin Dauphin, Manuela R. Bizzozzero, Masaomi Hatakeyama, et al.
Molecular Ecology, 2026
Understanding how demographic dynamics interact with environmental heterogeneity is central to explaining patterns of genomic variation in the marine realm. Indo‐Pacific bottlenose dolphins ( Tursiops aduncus ) occur along most of the Australian coastline, from tropical to temperate waters, encompassing pronounced differences in temperature, salinity, chlorophyll‐a concentration and ocean currents. Using whole‐genome sequencing of individuals covering this range, we examined population genetic structure and adaptive divergence at a continental scale. Genome‐wide variation mirrored geographic patterns, consistent with a common origin in the north, followed by two independent stepping‐stone‐like colonization patterns along the eastern and the western coastlines from north to south. In contrast, putatively adaptive loci clustered individuals by tropical waters regardless of geographic distance, indicating strong parallel adaptation in tropical habitats. Candidate loci were enriched for functions related to metabolism and ion transport, with some mapping to genes with regulatory functions. Additional signals potentially suggest involvement of neuronal pathways, consistent with adaptation in a highly social and cognitively advanced marine mammal. Our results highlight the complex interplay between demographic history and selection and suggest tropical–temperate, potentially ecotype‐like differentiation across Australian waters. In the face of accelerating climate change, recognizing such adaptive structuring is critical for preserving evolutionary potential. Incorporating adaptive genomic information into conservation planning, alongside neutral genetic data, will be essential for anticipating population responses to future environmental change and for identifying biologically meaningful conservation units.
Distance defines us: determining dolphin group membership through analysis of inter-individual distances
Anna I. Christie, Andrew P. Colefax, Charlie White, Guido J. Parra
Behavioral Ecology and Sociobiology, 2026
Group spacing and cohesion are fundamental aspects of social structure in group-living species, shaping interactions and ecological dynamics. Defining what constitutes a group can be problematic in highly mobile group-living species such as delphinids. Spatial proximity among individuals is often used to delimit group membership, yet threshold distances lack justification. In this study, we combined machine-learning methods with measurements extracted from drone-based observations to investigate how the sighting size, age composition, and behaviour influence nearest-neighbour distance (NND) and inter-individual distance (IID) among Indo-Pacific bottlenose dolphins ( Tursiops aduncus ) in Coffin Bay, South Australia. Our aim was to identify threshold distances for NND and IID that objectively define group membership based on spatial proximity. We identified threshold distances of 18 m for NND and 24 m for IID, based on the 95th percentile of their distributions across all sightings. Mixed-effects models showed statistically significant effects of sighting size, age composition and behaviour on both NND and IID, with effect sizes ranging from < 1 m to 12.6 m. Behaviour had the strongest impact, with dolphins exhibiting closer IID during socialising and travelling compared to foraging. Larger sighting sizes were associated with significant increases in both NND and IID, while higher proportions of juveniles and calves influenced spacing differently, and depended on sighting size. These findings reveal that dolphin spatial structure is dynamically shaped by sighting size, age composition and behaviour, advancing our understanding of the mechanisms governing group cohesion and coordination. The approach presented here provides an objective framework for defining delphinid groups, which is broadly applicable to other group-living mammals.
Two Cases of Early Orphan Survival in Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) From the Adelaide Dolphin Sanctuary, South Australia
Cristina Vicente‐Sánchez, Guido J. Parra, Catherine M. Kemper, Luciana M. Möller
Marine Mammal Science, 2026
Population Demographics of Killer Whales (Orcinus orca) in Western Australia
Marissa J. Hutchings, Guido J. Parra, Rebecca Wellard, John A. Totterdell, Isabella M. Reeves, et al.
Marine Mammal Science, 2026
Understanding population demographics is crucial for the effective conservation of species. This is particularly important for apex predators, such as the killer whale ( Orcinus orca ), which play important roles in maintaining the structure and function of ecosystems. In this study, we used capture‐mark‐recapture (CMR) modeling to assess killer whale demographics at two distinct aggregation sites in Western Australia: the Ningaloo Reef (NW) and Bremer Sub‐basin (SW). Using 12 years of photo‐identification (photo‐ID) data from the NW and 6 years from the SW, we applied open population models (POPAN and Cormack–Jolly–Seber) to estimate the abundance ( N total ), apparent survival ( Phi ), capture probability ( p ), and probability of entry ( pent ) of killer whales inhabiting these key areas. Abundance estimates in the NW, which combined females, males, and individuals of unknown sex ( N total = 47 ± 2, 95% CI = 43–52), revealed a small, well‐marked, and frequently resighted population with high apparent survival ( Phi female = 0.98 ± 0.016, 95% CI = 0.91–0.99; Phi male = 0.88 ± 0.060, 95% CI = 0.71–0.96; Phi unknown = 0.82 ± 0.064, 95% CI = 0.66–0.92). In contrast, abundance estimates in the SW, which separated sexed adults ( N total = 102 ± 7, 95% CI = 88–117) from the unknown sex group, suggested a much larger and more transient population with variable apparent survival ( Phi female = 0.98 ± 0.001, 95% CI = 0.97–0.98; Phi male = 0.82 ± 0.012, 95% CI = 0.79–0.84; Phi unknown(T) = 0.65 ± 0.177, 95% CI = 0.29–0.90; Phi unknown(R) = 0.84 ± 0.185, 95% CI = 0.26–0.99). Variation in population demography between the two study areas likely reflects divergent ecological and evolutionary histories shaped by both genetic and environmental factors. Additionally, differences in habitat accessibility, individual distinctiveness, and sampling design may have influenced detectability and model outcomes. These results provide vital baseline demographic data for killer whales in Australian waters and highlight the need for standardized long‐term monitoring to inform conservation management strategies.
Sociality of Marine Mammals and Their Vulnerability to the Spread of Infectious Diseases: A Systematic Review
Caitlin R. Nicholls, Mauricio Cantor, Luciana Möller, Guido J. Parra
Mammal Review, 2026
Introduction Social structure plays a crucial role in shaping the transmission dynamics of infectious diseases within animal populations, yet its influence remains understudied in marine mammals. Aims This review investigates links between marine mammal sociality and disease vulnerability, focusing on social network metrics and their influence on disease transmission. The study aimed to (1) identify patterns in disease transmission, (2) map gaps in current knowledge to inform strategic directions for future investigation and (3) discuss implications for conservation and disease management. Methods Through systematic database searching, 14 studies were identified that investigated social network metrics and their influence on disease transmission in marine mammal social networks. Results Results show that stronger associations and greater social connectivity increase disease prevalence, although this relationship varied across species. Central individuals acted as ‘super‐spreaders’, facilitating disease spread to conspecifics and vaccination efforts targeting these individuals are a recurrent proposed mitigation strategy. At the population level, network fragmentation reduced disease burden, while highly connected subgroups facilitated pathogen transmission. Research is concentrated on few key species, revealing significant gaps in taxonomic and geographic representation. Additionally, studies were geographically biased toward North America and Australia, with limited collaboration across research clusters, highlighting the need for broader representation and interdisciplinary partnerships. Conclusion These findings underscore the need for interdisciplinary approaches integrating epidemiological modelling, social network analysis and conservation strategies to better predict and mitigate disease risks in marine mammal populations. Future research should expand species coverage and incorporate ecological and environmental variables to develop targeted disease management frameworks.
Vulnerability of marine megafauna to global at-sea anthropogenic threats
Michelle VanCompernolle, Juliet Morris, Hannah J. Calich, Jorge P. Rodríguez, Sarah A. Marley, et al.
Conservation Biology, 2026
Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species by assessing the vulnerability of 256 marine megafauna species to 23 at‐sea threats. The threats we considered included individual fishing gear types, climate‐change‐related subthreats not previously assessed, and threats associated with coastal impacts and maritime disturbances. Our ratings resulted in 70 species having high vulnerability ( v > 0.778 out of 1) to at least 1 threat, primarily drifting longlines, temperature extremes, or fixed gear. These 3 threats were also considered to have the most severe effects (i.e., steepest population declines). Overall, temperature extremes and plastics and other solid waste were rated as affecting the largest proportion of populations. Penguins, pinnipeds, and polar bears had the highest vulnerability to temperature extremes. Bony fishes had the highest vulnerability to drifting longlines and plastics and other solid waste; pelagic cetaceans to 4 maritime disturbance threats; elasmobranchs to 5 fishing threats; and flying birds to drifting longlines and 2 maritime disturbance threats. Sirenians and turtles had the highest vulnerability to at least one threat from all 4 categories. Despite not necessarily having severe effects for most taxonomic groups, temperature extremes were rated among the top threats for all taxa except bony fishes. The vulnerability scores we provide are an important first step in estimating the risk of threats to marine megafauna. Importantly, they help differentiate scope from severity, which is key to identifying threats that should be prioritized for mitigation.
Drone Infrared Thermography for Detecting Skin Thermal Anomalies in Bottlenose Dolphins: Preliminary Insights
Charlie White, Andrew P. Colefax, Guido J. Parra
Ecology and Evolution, 2026
Monitoring the health of cetaceans is challenging as traditional approaches including vessel‐based surveys and necropsies are often opportunistic and limited in their ability to detect subtle physiological changes. Infrared thermography (IRT) offers a non‐invasive alternative by detecting surface temperature anomalies that may reflect localised physiological variation, including changes associated with inflammation, scarring, tissue disruption or thermoregulatory processes. Mounted on drones, IRT can enable remote thermal imaging of free‐ranging individuals. This case study presented preliminary observations from the exploratory use of drone‐IRT to detect localised thermal anomalies in the skin of bottlenose dolphins ( Tursiops truncatus ) under human care. A total of 14 adult dolphins were monitored across the Austral summer and winter, with two individuals exhibiting consistent thermal hotspots 3°C–5°C warmer than surrounding body surface temperatures. One individual exhibited a transient anomaly that resolved over time, whereas the other displayed persistent hotspots that became more pronounced. These anomalies corresponded with external markings, suggesting localised alterations in skin surface thermal patterns. This case study provided preliminary evidence that drone‐IRT can detect localised thermal anomalies in a dolphin's skin and highlights the potential for drone‐IRT as a non‐invasive tool for monitoring health in both managed and wild dolphin populations. Further quantitative investigations with larger sample sizes and concurrent veterinary assessments may provide validation regarding such observations and to evaluate whether such anomalies are indicative of underlying health issues.
Using drone-based infrared thermography for monitoring vital signs in dolphins
Charlie White, Andrew P. Colefax, Guido J. Parra
Journal of Thermal Biology, 2026
Global variation and drivers of shark predation risk experienced by estuarine and coastal dolphins
Jerry Hall Moxley, Jeremy J Kiszka, Krystan A Wilkinson, Guido Jose Parra, Michael R Heithaus
Marine Ecology Progress Series, 2026
Despite often being considered top predators, small delphinids (<3 m) face predation risk from large sharks (>2.5 m total length) in several marine ecosystems around the globe. Yet, estimating relative shark predation pressure and risk to cetacean species and populations, and how they might vary across ecological contexts, has been challenging. Evidence of unsuccessful predation, such as bite wounds, epidermal scarring, and related injuries, has been reported across multiple taxa and locations, providing broad insights into the extent of predation risk to odontocetes in several populations. Here, we synthesize 41 published studies that reported the prevalence of shark-inflicted injuries on 17 cetacean species across 62 locations globally to gain insights into the dynamics and drivers of shark predation on cetaceans. Using a subset of studies on small coastal delphinids, we further assess factors influencing variation in shark-inflicted injuries. Prevalence of injuries caused by sharks was significantly greater in populations from the southern hemisphere. Binomial logistic regression of proportions of individuals with shark-inflicted injuries across 3 coastal dolphin genera ( Tursiops , Orcaella , and Sousa ) suggests a lower prevalence in areas with high fishing pressure, large shark population declines, and other human impacts. Overall, our results suggest that throughout much of their ranges, coastal and estuarine delphinids currently experience lower than expected predation pressure, likely due to fishing pressure and the resulting declines of large sharks. However, conservation efforts focused on restoring shark populations may begin to reverse these trends in countries with strong fisheries management measures. Establishing and investigating baselines in predator-prey interactions among upper trophic level consumers can provide critical insights for understanding marine community dynamics and ecosystem-based management.
Shape variation in the eye patch and dorsal fin of southern hemisphere killer whales (Orcinus orca)
Marissa J. Hutchings, Rebecca Wellard, David M. Donnelly, John A. Totterdell, Guido J. Parra, et al.
Mammalian Biology, 2025
Morphological variation within and among species plays a critical role in evolutionary processes, influencing adaptation, survival, and reproductive success. Killer whale ( Orcinus orca ) morphology is known to vary on both an individual and population level with several ecotypes or forms documented worldwide. However, the extent of morphological variation among killer whales in Australian waters remains unclear, both among individuals within the region and in comparison to those in other parts of the southern hemisphere. This study assessed eye patch and dorsal fin shape variation in Australian and Antarctic killer whales to explore the evolutionary relationships among these groups. A large dataset of imagery was compiled and processed to achieve this, which provided representative sample sizes for five separate study groups: northwest Australia (NW), southwest Australia (SW), southeast Australia (SE), Antarctic type A (AA) and Antarctic type B1 (AB). Elliptical Fourier analysis was used to extract the feature outlines and enable multivariate data analyses. Principal component analysis and pairwise comparisons revealed significant morphological differences both within and between Australian and Antarctic killer whales. Eye patch shape variation was driven by the degree of taper and overall width whereas dorsal fin shape variation was driven by falcateness and broadness at its base. Hierarchical cluster analysis revealed considerable variation amongst these features, while linear discriminate analysis indicated that individuals could not be reliably classified into their respective study groups based on eye patch and dorsal fin shape alone. Nonetheless, these findings suggest the presence of both a tropical and temperate form of killer whale in Australia, with the latter resembling both the Antarctic Type A and B2s morphologically. To better understand their connectivity and divergence, dedicated research is needed to assess the evolutionary history of these populations. Such knowledge will be vital in defining global conservation management units for killer whales which are still considered a single, data deficient species by the International Union for Conservation of Nature (IUCN).
Decadal Shifts in Southern Right Whale (Eubalaena australis) Recovery in South Australian Waters: Implications for Conservation and Management
Bridgette O’Shannessy, Luciana Möller, Robert D. McCauley, Guido J. Parra, Joshua N. Smith, et al.
Marine Mammal Science, 2025
Association Patterns of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) in Waters off the North West Cape, Western Australia
Chloe M. Edwards, Jonathan Syme, Guido J. Parra
Marine Mammal Science, 2025
Ranging patterns and mortality of an at-risk marine mammal resident in a highly urbanized estuary
Michelle Newman, Mike Bossley, Ryan Baring, Luciana Möller, Aude Steiner, et al.
Animal Behaviour, 2025
Species Distribution Modeling of Killer Whales (Orcinus orca) in Australian Waters
Marissa J. Hutchings, Guido J. Parra, John A. Totterdell, Rebecca Wellard, David M. Donnelly, et al.
Ecology and Evolution, 2025
Movements and burrow use of newly emerged juvenile and adult female platypuses
Max Boulton, Jessica Thomas, Gilad Bino, Jessica Clayton, Guido J. Parra, et al.
Australian Mammalogy, 2025
Behavioural Processes Underlying the Habitat Selection of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) in the Ningaloo Marine Park and Exmouth Gulf, at the North West Cape, Western Australia
R. Haughey, T. N. Hunt, D. Hanf, C. Passadore, R. Baring, et al.
Aquatic Conservation Marine and Freshwater Ecosystems, 2025
Long-Term Demographic Trends of Near Threatened Coastal Dolphins Living in an Urban Estuary
Kennadie Haigh, Guido J. Parra, Luciana Möller, Aude Steiner, Mike Bossley
Ecology and Evolution, 2025
Behavioural variation facilitates coexistence and explains the functions of mixed-species groups of sympatric delphinids
Jonathan Syme, Jeremy J. Kiszka, Guido J. Parra
Animal Behaviour, 2024
Indo-Pacific and Australian humpback dolphins Sousa chinensis (Osbeck, 1765) and S. sahulensis Jefferson and Rosenbaum, 2014
Guido J. Parra, Thomas A. Jefferson
Coastal Dolphins and Porpoises Ridgway and Harrison S Handbook of Marine Mammals Volume 1, 2024
Nesting habitat characteristics of flatback Natator depressus, green Chelonia mydas and loggerhead Caretta caretta turtles in eastern Queensland, Australia
L Heddle, KJ Peters, M Hamann, GJ Parra
Endangered Species Research, 2024
Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids
Jonathan Syme, Jeremy J. Kiszka, Guido J. Parra
Scientific Reports, 2023
Australian humpback dolphin: Sousa sahulensis
Strahan S Mammals of Australia, 2023
Australian snubfin dolphin: Orcaella heinsohni
Strahan S Mammals of Australia, 2023
Incidence of shark-inflicted bite injuries on Australian snubfin (Orcaella heinsohni) and Australian humpback (Sousa sahulensis) dolphins in coastal waters off east Queensland, Australia
Caitlin R. Nicholls, Katharina J. Peters, Daniele Cagnazzi, Daniella Hanf, Guido J. Parra
Ecology and Evolution, 2023
Multiple social benefits drive the formation of mixed-species groups of Australian humpback and Indo-Pacific bottlenose dolphins
Jonathan Syme, Jeremy J. Kiszka, Guido J. Parra
Behavioral Ecology and Sociobiology, 2023
Coastal dolphins and marine megafauna in Exmouth Gulf, Western Australia: informing conservation management actions in an area under increasing human pressure
Kate R. Sprogis, Guido J. Parra
Wildlife Research, 2023
Seascape genomics of common dolphins (Delphinus delphis) reveals adaptive diversity linked to regional and local oceanography
Andrea Barceló, Jonathan Sandoval-Castillo, Chris J. Brauer, Kerstin Bilgmann, Guido J. Parra, et al.
BMC Ecology and Evolution, 2022
How to define a dolphin “group”? Need for consistency and justification based on objective criteria
Jonathan Syme, Jeremy J. Kiszka, Guido J. Parra
Ecology and Evolution, 2022
Dredging activity in a highly urbanised estuary did not affect the long-term occurrence of Indo-Pacific bottlenose dolphins and long-nosed fur seals
Mike I. Bossley, Aude Steiner, Guido J. Parra, Frédérik Saltré, Katharina J. Peters
Marine Pollution Bulletin, 2022
Too Close for Comfort? Isotopic Niche Segregation in New Zealand’s Odontocetes
Katharina J. Peters, Sarah J. Bury, Bethany Hinton, Emma L. Betty, Déborah Casano-Bally, et al.
Biology, 2022
Corrigendum: Abundance and Potential Biological Removal of Common Dolphins Subject to Fishery-Impacts in South Australian Waters(Front. Mar. Sci., (2021), 8, (617075), 10.3389/fmars.2021.617075
Guido J. Parra, Kerstin Bilgmann, Katharina J. Peters, Luciana M. Möller
Frontiers in Marine Science, 2022
Isotopic niche overlap between sympatric Australian snubfin and humpback dolphins
Guido J. Parra, Zachary Wojtkowiak, Katharina J. Peters, Daniele Cagnazzi
Ecology and Evolution, 2022
Abundance and Potential Biological Removal of Common Dolphins Subject to Fishery Impacts in South Australian Waters
Guido J. Parra, Kerstin Bilgmann, Katharina J. Peters, Luciana M. Möller
Frontiers in Marine Science, 2021
Distribution and Habitat Preferences of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) Inhabiting Coastal Waters With Mixed Levels of Protection
Rebecca Haughey, Timothy N. Hunt, Daniella Hanf, Cecilia Passadore, Ryan Baring, et al.
Frontiers in Marine Science, 2021
Dynamics of Cetacean Mixed-Species Groups: A Review and Conceptual Framework for Assessing Their Functional Significance
Jonathan Syme, Jeremy J. Kiszka, Guido J. Parra
Frontiers in Marine Science, 2021
A Matter of Scale: Population Genomic Structure and Connectivity of Fisheries At-Risk Common Dolphins (Delphinus delphis) From Australasia
Andrea Barceló, Jonathan Sandoval-Castillo, Karen A. Stockin, Kerstin Bilgmann, Catherine R. M. Attard, et al.
Frontiers in Marine Science, 2021
Kinship and reproductive condition correlate with affiliation patterns in female southern Australian bottlenose dolphins
Fernando Diaz-Aguirre, Guido J. Parra, Cecilia Passadore, Luciana Möller
Scientific Reports, 2020
Identifying priority habitat for conservation and management of Australian humpback dolphins within a marine protected area
Tim N. Hunt, Simon J. Allen, Lars Bejder, Guido J. Parra
Scientific Reports, 2020
Vulnerability of threatened Australian humpback dolphins to flooding and port development within the southern Great Barrier Reef coastal region
Daniele Cagnazzi, Guido J. Parra, Peter L. Harrison, Lyndon Brooks, Robert Rankin
Global Ecology and Conservation, 2020
Foraging ecology of the common dolphin Delphinus delphis revealed by stable isotope analysis
KJ Peters, SJ Bury, EL Betty, GJ Parra, G Tezanos-Pinto, et al.
Marine Ecology Progress Series, 2020
Genomics of Population Differentiation in Humpback Dolphins, Sousa spp. In the Indo-Pacific Ocean
Ana R Amaral, Cátia Chanfana, Brian D Smith, Rubaiyat Mansur, Tim Collins, et al.
Journal of Heredity, 2020
Erratum: Satellite derived offshore migratory movements of southern right whales (Eubalaena australis) from Australian and New Zealand wintering grounds (PLoS ONE (2020) 15:5 (e0231577) DOI: 10.1371/journal.pone.0231577)
Alice I. Mackay, Frédéric Bailleul, Emma L. Carroll, Virginia Andrews-Goff, C. Scott Baker, et al.
Plos One, 2020
Satellite derived offshore migratory movements of southern right whales (Eubalaena australis) from Australian and New Zealand wintering grounds
Alice I. Mackay, Frédéric Bailleul, Emma L. Carroll, Virginia Andrews-Goff, C. Scott Baker, et al.
Plos One, 2020
Geographic and temporal variation in persistent pollutants in Australian humpback and snubfin dolphins
Daniele Cagnazzi, Peter L. Harrison, Guido J. Parra, Amanda Reichelt-Brushett, Letizia Marsili
Ecological Indicators, 2020
Photographic Capture-Recapture Analysis Reveals a Large Population of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) With Low Site Fidelity off the North West Cape, Western Australia
Rebecca Haughey, Tim Hunt, Daniella Hanf, Robert William Rankin, Guido J. Parra
Frontiers in Marine Science, 2020
Abundance estimates and habitat preferences of bottlenose dolphins reveal the importance of two gulfs in South Australia
Kerstin Bilgmann, Guido J. Parra, Lauren Holmes, Katharina J. Peters, Ian D. Jonsen, et al.
Scientific Reports, 2019
Genetic relatedness delineates the social structure of southern Australian bottlenose dolphins
Fernando Diaz-Aguirre, Guido J Parra, Cecilia Passadore, Luciana Möller
Behavioral Ecology, 2019
Assortative interactions revealed in a fission–fusion society of Australian humpback dolphins
Tim N Hunt, Simon J Allen, Lars Bejder, Guido J Parra
Behavioral Ecology, 2019
Modelling Dolphin Distribution to Inform Future Spatial Conservation Decisions in a Marine Protected Area
Cecilia Passadore, Luciana M. Möller, Fernando Diaz-Aguirre, Guido J. Parra
Scientific Reports, 2018
Kinship influences social bonds among male southern Australian bottlenose dolphins (Tursiops cf. australis)
Fernando Diaz-Aguirre, Guido J. Parra, Cecilia Passadore, Luciana Möller
Behavioral Ecology and Sociobiology, 2018
Occurrence, distribution and abundance of cetaceans off the western Eyre Peninsula in the Great Australian Bight
Kerstin Bilgmann, Guido J. Parra, Luciana M. Möller
Deep Sea Research Part II Topical Studies in Oceanography, 2018
Long-term trends in habitat use and site fidelity by Australian humpback dolphins Sousa sahulensis in a near-urban embayment
JJ Meager, ER Hawkins, I Ansmann, GJ Parra
Marine Ecology Progress Series, 2018
Social cohesion and intra-population community structure in southern Australian bottlenose dolphins (Tursiops sp.)
Nikki Zanardo, Guido J. Parra, Fernando Diaz-Aguirre, Eleanor A. L. Pratt, Luciana M. Möller
Behavioral Ecology and Sociobiology, 2018
Low genetic diversity, limited gene flow and widespread genetic bottleneck effects in a threatened dolphin species, the Australian humpback dolphin
Guido J. Parra, Daniele Cagnazzi, Maria Jedensjö, Corinne Ackermann, Celine Frere, et al.
Biological Conservation, 2018
High site fidelity and restricted ranging patterns in southern Australian bottlenose dolphins
Cecilia Passadore, Luciana Möller, Fernando Diaz‐Aguirre, Guido J. Parra
Ecology and Evolution, 2018
Demographic collapse and low genetic diversity of the Irrawaddy dolphin population inhabiting the Mekong River
Michael Krützen, Isabel Beasley, Corinne Y. Ackermann, Dietmar Lieckfeldt, Arne Ludwig, et al.
Plos One, 2018
Demography of southern Australian bottlenose dolphins living in a protected inverse estuary
Cecilia Passadore, Luciana Möller, Fernando Diaz‐Aguirre, Guido J. Parra
Aquatic Conservation Marine and Freshwater Ecosystems, 2017
Anthropogenic threat assessment of marine-associated fauna in Spencer Gulf, South Australia
William D. Robbins, Charlie Huveneers, Guido J. Parra, Luciana Möller, Bronwyn M. Gillanders
Marine Policy, 2017
Ensemble modelling of southern Australian bottlenose dolphin Tursiops sp. distribution reveals important habitats and their potential ecological function
N Zanardo, GJ Parra, C Passadore, LM Möller
Marine Ecology Progress Series, 2017
Humpback Dolphins: Sousa teuszii, S. plumbea, S. chinensis and S. sahulensis
Guido J. Parra, Thomas A. Jefferson
Encyclopedia of Marine Mammals Third Edition, 2017
Demographic characteristics of australian humpback dolphins reveal important habitat toward the southwestern limit of their range
TN Hunt, L Bejder, SJ Allen, RW Rankin, D Hanf, et al.
Endangered Species Research, 2017
Site fidelity, residency, and abundance of bottlenose dolphins (Tursiops sp.) in Adelaide's coastal waters, South Australia
Nikki Zanardo, Guido J. Parra, Luciana M. Möller
Marine Mammal Science, 2016
Net loss of endangered humpback dolphins: Integrating residency, site fidelity, and bycatch in shark nets
S Atkins, M Cantor, N Pillay, G Cliff, M Keith, et al.
Marine Ecology Progress Series, 2016
Socio-genetic structure of short-beaked common dolphins in southern Australia
N. Zanardo, K. Bilgmann, G. J. Parra, L. M. Möller
Journal of Zoology, 2016
Conservation status of the Australian humpback dolphin (Sousa sahulensis) using the IUCN Red List Criteria
Guido J. Parra, Daniele Cagnazzi
Advances in Marine Biology, 2016
Humpback dolphins of Western Australia: A review of current knowledge and recommendations for future management
Daniella M. Hanf, Tim Hunt, Guido J. Parra
Advances in Marine Biology, 2016
Sexual dimorphism and geographic variation in dorsal fin features of Australian humpback dolphins, Sousa sahulensis
Alexander M. Brown, Lars Bejder, Guido J. Parra, Daniele Cagnazzi, Tim Hunt, et al.
Advances in Marine Biology, 2016
Habitat and resource partitioning among Indo-Pacific bottlenose dolphins in Moreton Bay, Australia
Ina C. Ansmann, Janet M. Lanyon, Jennifer M. Seddon, Guido J. Parra
Marine Mammal Science, 2015
Erratum: Estimates of abundance and apparent survival of coastal dolphins in Port Essington harbour, Northern Territory, Australia (Wildlife Research (2014) 41:1 (35-45) DOI: 10.1071/WR14031)
Wildlife Research, 2015
Local assessments of marine mammals in cross-cultural environments
li-Anthawirriyarra Sea Rangers, A. Grech, Yanyuwa Families, G. J. Parra, I. Beasley, et al.
Biodiversity and Conservation, 2014
Population differentiation and hybridisation of Australian snubfin (Orcaella heinsohni) and Indo-Pacific humpback (Sousa chinensis) dolphins in North-Western Australia
Alexander M. Brown, Anna M. Kopps, Simon J. Allen, Lars Bejder, Bethan Littleford-Colquhoun, et al.
Plos One, 2014
Multiple management units of short-beaked common dolphins subject to fisheries bycatch off southern and southeastern Australia
K Bilgmann, GJ Parra, N Zanardo, LB Beheregaray, LM Möller
Marine Ecology Progress Series, 2014
Stomach contents of Australian snubfin (Orcaella heinsohni) and Indo-Pacific humpback dolphins (Sousa chinensis)
Guido J. Parra, Maria Jedensjö
Marine Mammal Science, 2014
Collation and review of sightings and distribution of three coastal dolphin species in waters of the Northern Territory, Australia
Carol Palmer, Guido J Parra, Tracey Rogers, John Woinarski
Pacific Conservation Biology, 2014
Estimates of abundance and apparent survival of coastal dolphins in Port Essington harbour, Northern Territory, Australia
Carol Palmer, Lyndon Brooks, Guido J. Parra, Tracey Rogers, Debra Glasgow, et al.
Wildlife Research, 2014
Discriminating between the vocalizations of Indo-Pacific humpback and Australian snubfin dolphins in Queensland, Australia
Alvaro Berg Soto, Helene Marsh, Yvette Everingham, Joshua N. Smith, Guido J. Parra, et al.
Journal of the Acoustical Society of America, 2014
Integrating multiple lines of evidence to better understand the evolutionary divergence of humpback dolphins along their entire distribution range: A new dolphin species in Australian waters?
Martin Mendez, Thomas A. Jefferson, Sergios‐Orestis Kolokotronis, Michael Krützen, Guido J. Parra, et al.
Molecular Ecology, 2013
First insights into the effects of swim-with-dolphin tourism on the behavior, response, and group structure of southern Australian bottlenose dolphins
Katharina J. Peters, Guido J. Parra, Pawel P. Skuza, Luciana M. Möller
Marine Mammal Science, 2013
Monitoring Dolphins in an Urban Marine System: Total and Effective Population Size Estimates of Indo-Pacific Bottlenose Dolphins in Moreton Bay, Australia
Ina C. Ansmann, Janet M. Lanyon, Jennifer M. Seddon, Guido J. Parra
Plos One, 2013
At the Heart of the Industrial Boom: Australian Snubfin Dolphins in the Capricorn Coast, Queensland, Need Urgent Conservation Action
Daniele Cagnazzi, Guido J. Parra, Shane Westley, Peter L. Harrison
Plos One, 2013
Acoustic alarms elicit only subtle responses in the behaviour of tropical coastal dolphins in Queensland, Australia
A Berg Soto, D Cagnazzi, Y Everingham, GJ Parra, M Noad, et al.
Endangered Species Research, 2013
Anthropogenic contaminants in Indo-Pacific humpback and Australian snubfin dolphins from the central and southern Great Barrier Reef
Daniele Cagnazzi, Maria Cristina Fossi, Guido J. Parra, Peter L. Harrison, Silvia Maltese, et al.
Environmental Pollution, 2013
Dolphins restructure social system after reduction of commercial fisheries
Ina C. Ansmann, Guido J. Parra, B. Louise Chilvers, Janet M. Lanyon
Animal Behaviour, 2012
Fine-scale genetic population structure in a mobile marine mammal: Inshore bottlenose dolphins in Moreton Bay, Australia
Ina C. Ansmann, Guido J. Parra, Janet M. Lanyon, Jennifer M. Seddon
Molecular Ecology, 2012
Sociogenetic structure, kin associations and bonding in delphinids
LUCIANA M. MÖLLER
Molecular Ecology, 2012
The North West Cape, Western Australia: A potential hotspot for indo-pacific humpback dolphins Sousa chinensis?
Alex Brown, Lars Bejder, Daniele Cagnazzi, Guido J Parra, Simon J Allen
Pacific Conservation Biology, 2012
Grouping and fission-fusion dynamics in Australian snubfin and Indo-Pacific humpback dolphins
Guido J. Parra, Peter J. Corkeron, Peter Arnold
Animal Behaviour, 2011
Multiple lines of evidence for an Australasian geographic boundary in the Indo-Pacific humpback dolphin (Sousa chinensis): Population or species divergence?
C. H. Frère, J. Seddon, C. Palmer, L. Porter, G. J. Parra
Conservation Genetics, 2011
Analysis of mitochondrial DNA clarifies the taxonomy and distribution of the Australian snubfin dolphin (Orcaella heinsohni) in northern Australian waters
Carol Palmer, Stephen A. Murphy, Deborah Thiele, Guido J. Parra, Kelly M. Robertson, et al.
Marine and Freshwater Research, 2011
Mitogenomic phylogenetic analyses of the Delphinidae with an emphasis on the Globicephalinae
Julia T Vilstrup, Simon YW Ho, Andrew D Foote, Phillip A Morin, Danielle Kreb, et al.
BMC Evolutionary Biology, 2011
Humpback dolphins: S. chinensis and s. teuszii
Guido J. Parra, Graham J.B. Ross
Encyclopedia of Marine Mammals, 2009
Observations of an Indo-Pacific humpback dolphin carrying a sponge: Object play or tool use?
Guido J. Parra
Mammalia, 2007
Resource partitioning in sympatric delphinids: Space use and habitat preferences of Australian snubfin and Indo-Pacific humpback dolphins
GUIDO J. PARRA
Journal of Animal Ecology, 2006
Population sizes, site fidelity and residence patterns of Australian snubfin and Indo-Pacific humpback dolphins: Implications for conservation
Guido J. Parra, Peter J. Corkeron, Helene Marsh
Biological Conservation, 2006
Distribution of Irrawaddy dolphins, Orcaella brevirostris, in Australian waters
Raffles Bulletin of Zoology, 2002
Sounds produced by Australian Irrawaddy dolphins, Orcaella brevirostris
Sofie M. Van Parijs, Guido J. Parra, Peter J. Corkeron
Journal of the Acoustical Society of America, 2000

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