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Outputs (136)

Intraspecific phenotypic differentiation by habitat depth in deep demersal fish species (2024)
Journal Article
Steeds, N., Zulqurnain, Z., Regnier, T., Gibb, F., Stirling, D., & Hoelzel, A. R. (2024). Intraspecific phenotypic differentiation by habitat depth in deep demersal fish species. Frontiers in Marine Science, 11, Article 1437952. https://doi.org/10.3389/fmars.2024.1437952

Introduction: Ocean habitat characteristics change with depth. This is due to physical properties such as light, temperature and hydrostatic pressure, but also species community. In some cases, this generates a boundary (e.g. when light is lost in th... Read More about Intraspecific phenotypic differentiation by habitat depth in deep demersal fish species.

Genomics of post-bottleneck recovery in the northern elephant seal. (2024)
Journal Article
Hoelzel, A. R., Gkafas, G. A., Kang, H., Sarigol, F., Le Boeuf, B., Costa, D. P., …Li, S. (2024). Genomics of post-bottleneck recovery in the northern elephant seal. Nature Ecology and Evolution, 8, 686-694. https://doi.org/10.1038/s41559-024-02337-4

Populations and species are threatened by human pressure, but their fate is variable. Some depleted populations, such as that of the northern elephant seal (Mirounga angustirostris), recover rapidly even when the surviving population was small. The n... Read More about Genomics of post-bottleneck recovery in the northern elephant seal..

Ancient and modern DNA track temporal and spatial population dynamics in the European fallow deer since the Eemian interglacial (2024)
Journal Article
Baker, K. H., Gray, H. W. I., Lister, A. M., Spassov, N., Welch, A. J., Trantalidou, K., …Hoelzel, A. R. (2024). Ancient and modern DNA track temporal and spatial population dynamics in the European fallow deer since the Eemian interglacial. Scientific Reports, 14, Article 3015. https://doi.org/10.1038/s41598-023-48112-6

Anthropogenic factors have impacted the diversity and evolutionary trajectory of various species. This can be through factors such as pressure on population size or range, habitat fragmentation, or extensive manipulation and translocation. Here we us... Read More about Ancient and modern DNA track temporal and spatial population dynamics in the European fallow deer since the Eemian interglacial.

Kinship study reveals stable non-kin-based associations in a medium-sized delphinid (2023)
Journal Article
Hartman, K. L., Chen, I., van der Harst, P. A., Moura, A. E., Jahnke, M., Pilot, M., …Hoelzel, A. R. (2023). Kinship study reveals stable non-kin-based associations in a medium-sized delphinid. Behavioral Ecology and Sociobiology, 77(12), Article 137. https://doi.org/10.1007/s00265-023-03411-w

Delphinids display a wide variety of social structures, in which local food availability and defensibility, sexual size dimorphism and interbirth intervals ultimately influence the role of kin within social units. Earlier studies of the social ecolog... Read More about Kinship study reveals stable non-kin-based associations in a medium-sized delphinid.

Where to now with the evolutionarily significant unit? (2023)
Journal Article
Hoelzel, A. R. (2023). Where to now with the evolutionarily significant unit?. Trends in Ecology and Evolution, 38(12), 1134-1142. https://doi.org/10.1016/j.tree.2023.07.005

The designation of units for conservation has been a necessary but challenging objective since conservation efforts began. Most species are divided, typically by environment, into populations with independent evolutionary trajectories. There are prac... Read More about Where to now with the evolutionarily significant unit?.

Genomics reveals the role of admixture in the evolution of structure among sperm whale populations within the Mediterranean Sea (2023)
Journal Article
Violi, B., de Jong, M. J., Frantzis, A., Alexiadou, P., Tardy, C., Ody, D., de Stephanis, R., Giménez, J., Lucifora, G., e Silva, M. A., Oliveira, C., Alves, F., Dinis, A., Tejedor, M., Fernández, A., Arregui, M., Arbelo, M., Lopez, A., Covelo, P., & Hoelzel, A. R. (2023). Genomics reveals the role of admixture in the evolution of structure among sperm whale populations within the Mediterranean Sea. Molecular Ecology, 32(11), 2715-2731. https://doi.org/10.1111/mec.16898

In oceanic ecosystems, the nature of barriers to gene flow and the processes by which populations may become isolated are different from the terrestrial environment, and less well understood. In this study we investigate a highly mobile species (the... Read More about Genomics reveals the role of admixture in the evolution of structure among sperm whale populations within the Mediterranean Sea.

Widespread southern elephant seal occupation of the Victoria land coast implies a warmer-than-present Ross Sea in the mid-to-late Holocene (2023)
Journal Article
Hall, B. L., Koch, P. L., Baroni, C., Salvatore, M. C., Hoelzel, A. R., de Bruyn, M., & Welch, A. J. (2023). Widespread southern elephant seal occupation of the Victoria land coast implies a warmer-than-present Ross Sea in the mid-to-late Holocene. Quaternary Science Reviews, 303, Article 107991. https://doi.org/10.1016/j.quascirev.2023.107991

Prediction of future ice-sheet behavior in Antarctica and its contribution to sea-level rise depends on accurate understanding of ice-sheet response to a warm climate. Examination of how the ice sheet reacted to past warm episodes affords a means of... Read More about Widespread southern elephant seal occupation of the Victoria land coast implies a warmer-than-present Ross Sea in the mid-to-late Holocene.

Strong and lasting impacts of past global warming on baleen whales and their prey (2022)
Journal Article
Cabrera, A. A., Schall, E., Bérubé, M., Anderwald, P., Bachmann, L., Berrow, S., Best, P. B., Clapham, P. J., Cunha, H., Dalla Rosa, L., Dias, C., Findlay, K., Haug, T., Heide‐Jørgensen, M. P., Hoelzel, A., Kovacs, K. M., Landry, S., Larsen, F., Lopes, X. M., Lydersen, C., …Palsbøll, P. J. (2022). Strong and lasting impacts of past global warming on baleen whales and their prey. Global Change Biology, 28(8), 2657-2677. https://doi.org/10.1111/gcb.16085

Global warming is affecting the population dynamics and trophic interactions across a wide range of ecosystems and habitats. Translating these real-time effects into their long-term consequences remains a challenge. The rapid and extreme warming peri... Read More about Strong and lasting impacts of past global warming on baleen whales and their prey.