Publications


Peer reviewed publications | Non peer-reviewed publications | Oral presentations | Poster presentations | Supervision of internships-research projects



Peer reviewed publications:

Hartman, K.L.; Wittich, A; Cai, J.J; van der Meulen, F; and Azevedo, J. M.N. 2016. Estimating the age of Risso’s dolphins (Grampus griseus) based on skin appearance. Journal of Mammology. 97 (2): 490-502.
Download pdf: Hartman et al. Age Method 2016

Hartman, K.L., Fernandez, M., Wittich, A. and Azevedo, J.M.N. (2015b). Sex differences in residency patterns of Risso’s dolphins (Grampus griseus) in the Azores: causes and management implications. Marine Mammal Science, 31(3): 1153–1167.
Download pdf: Hartman et al. Sex differences 2015

Hartman, K.L., Fernandez, M. and Azevedo J.M.N. (2014). Spatial segregation of calving and nursing Risso's dolphins (Grampus griseus) in the Azores, and its conservation implications. Marine Biology, 161(6): 1419-1428.
Download pdf: Hartman et al. Spatial segregation 2014

Visser, F; Hartman, K.L.; Pierce. G.J; Valavanis V.D.S. and Huisman, J. (2011). Migration of baleen whales in relation to the North Atlantic spring bloom. Marine Ecology Progress Series, Vol.440: 267–279.
Download pdf: Visser et al Migration of baleen whales 2011

Visser, F; Hartman, K.L.; Rood, E. J.J., Hendriks, A. J. E., Zult, D. B., Wolff, W. J., Huisman, J. and Pierce, G.J. (2011). Risso’s dolphin (Grampus griseus) alters daily resting pattern in response to whale watching at the Azores. Marine Mammal Science, 27(2): 366–381.
Download pdf: Visser et al Azores 2011

Hartman , K.L.; Visser, F; and Hendriks A. J. E. 2008. Social structure of Risso's dolphins (Grampus griseus) at the Azores: a stratified community based on highly associated social units. Canadian Journal of Zoology 86(4): 294-306, April.
Download pdf: Hartman et al Gg Azores 2008

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Non peer-reviewed publications:

Hartman, K.L.; Annual Report Fieldwork Nova Atlantis 2016

Hartman, K.L.; Annual Report Fieldwork Nova Atlantis 2015

Chen, I; Hartman, K.L.; Simmonds, M, Wittich; A, Wright, A.J. (eds.), 2013. Grampus griseus 200th anniversary: Risso’s dolphins in the contemporary world. Report from the European Cetacean Society Conference Workshop, Galway, Ireland. European Cetacean Society Special Publication Series No 54.

Hartman, K.L.; Wittich; A. and Azevedo; J.M.N. 2012 . Show me your body and I tell you how old you are: A non-invasive method to define 6 life history- classes in Risso’s dolphins (Grampus
griseus) using an identified trial population in the Atlantic. In: European Cetacean Society Special Publication Series 54: 69-88.

Hartman, K.L.; and Azevedo, J.M.N. 2010.Biopsy report for Licenca 75/2009/DRA.

Hartman, K.L.; Casthilo, R; and Azevedo, J.M.N. 2009. Biopsy report for Licenca 75/2008/DRA.

Fernandez, M; Oviedo, L; Hartman, K.L.; Sousa, B; Azevedo, J.M.N. 2009. Differences in spatial distribution of two small delphinids (Delphinus delphis and Stenella frontalis) intwo islands of the Azores Archipelago. Reports of the International Whaling Commission: SC/61/SC8, May.

Visser, F; Hartman, K.L.; Rood, E.J.J; Hendriks, A.J.E; and Wolff, W.J. 2006. Effects of whale watching activities on Risso’s dolphin resting behaviour at the Azores. IWC report SC/58 of the sub-committee on whale watching.

Hartman, K.L.; Visser F. 2006. The case of the Risso's dolphin: Sustainable management in a critical habitat. Summary report Symposium 30 May, Faial Island.

Hartman, K.L.; Visser F; Hendriks A.J. E; and Wolff W.J. 2006. Summary Results Nova Atlantis Foundation 2005: Cetacean habitat model Azores, Risso Project and the Effects of whale watching activities. Annual Report for the Department of Ambient, Faial Island.

Hartman, K.L.; Visser F; Hendriks A.J. E; and Wolff W.J. 2005. Project Results 2003/2004, Nova Atlantis Foundation. Annual Report for the Department of Ambient, Faial Island.

Hartman, K.L.; Visser F; Hendriks A.J. E; and Wolff W.J. 2004. "Cetacean research results April/October 2003 off the south coast of Pico, Azores". Annual Report for the Department of Ambient, Faial Island.

Hartman, K.L.; Visser F; Hendriks A.J. E; and Wolff W.J. 2004. The Ocean Watch Project: A suggestion to regulate the commercial influence on cetaceans around the Azores. Annual Report for the Department of Ambient, Faial Island.

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Oral presentations in international and local conferences:

Hartman, K.L.; Fernandez, M; Wittich, A. and Azevedo J.M.N. 2014
The place to be?” Temporal and spatial residency patterns of Risso’s dolphins off Pico Island Proceedings of the 28 th Annual Conference of the European Cetacean Society. Liege, Belgium, April

Hartman, K.L.; Fernandez, M; and Azevedo J.M.N. 2013. Spatial segregation of calving and nursing Risso's dolphins (Grampus griseus)in the Azores, and its conservation implications. Conhecer o Mar dos Açores- fórum científico de apoio à decisão” Biblioteca Pública e Arquivo Regional João José da Graça, September

Hartman, K.L. 2012.”Long term monitoring of Risso's dolphins in the Azores: results, present work and future steps” . Workshop Grampus griseus 200th anniversary: Risso’s dolphins in the contemporary world. Held at the European Cetacean Society Conference, Galway, Ireland, April.

Hartman, K.L. 2011. “Long term monitoring of Risso's dolphins in the Azores: results, implications for management and future steps.” Conhecer o Mar dos Açores- fórum científico de apoio à decisão” Biblioteca Pública e Arquivo Regional João José da Graça, January.

Simiao, S; Hartman, K.L.; Hendriks, A.J.E; Visser, F; and Azevedo J. 2008. Residency patterns of bottlenose dolphins (Tursiops truncates) off Pico island, Azores. Proceedings of the 22 th Annual Conference of the European Cetacean Society. Egmond aan Zee, The Netherlands, March.

Visser, F; Hartman, K.L.; and Hendriks, A.J.E. 2007. Land observations at the Azores: efficient tool for management. Proceedings of the 21 th Annual Conference of the European Cetacean Society. San Sebastian, Spain, April.

Visser, F; Hartman, K.L.; Rood, E.J.J; Hendriks, A.J.E; and Wolff, W.J. 2006. Effects of whale watching activities on Risso’s dolphin resting behaviour at the Azores. Proceedings of the 20 th Annual Conference of the European Cetacean Society. Gdynia, Poland, April.

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Poster presentations:

Cucuzza M.; Hartman, K.L.; Olio, M.; Peres Santos, R.; Steiner, L.; . Stevick, P.T.; van der Linde, M. and Villa, E. 2015. The Azores Constitute a Migratory Stopover for Humpback Whales in the North Atlantic Ocean. Proceedings of the 21st Biennial Conference of the Society for Marine Mammalogy. San Fransico, United States of America.

Stap, Tim van der;Hartman, K.L.; Wittich, A.; Azevedo, J. M.N. & Heitkönig, I. M.A. 2013.Data analysis model selection for estimating local population size of the Risso’s dolphin (Grampus griseus) in the Azores. Proceedings of the 27 th Annual Conference of the European Cetacean Society. Setubal, Portugal, April.

Niemeijer, S. C.; Libotte, J. ; Hartman, K.L.; Steiner, L. & Azevedo, J. M.N. 2013.Presence of sperm whales (Physeter macrocephalus) around the Azores: A study of re-sightings off the South of Pico from 2003-2012. Proceedings of the 27 th Annual Conference of the European Cetacean Society. Setubal, Portugal, April.

Fernández, M; Hartman, K.L.; and Azevedo J.M.N.2012. Habitat differentiation between groups of Risso's dolphins as evidence of coastal nursery areas. Proceedings of the 26 th Annual Conference of the European Cetacean Society, Galway, Ireland, 24-28 March.

Hartman, K.L.; Wittich, A; Neves, D; and Azevedo, J.M.N.2011. Behavioural responses of Risso’s dolphin, Grampus griseus, to remote biopsy sampling. Proceedings of the 25 th Annual Conference of the European Cetacean Society, Cadiz, Spain, 21-23 March.

Cosentino,A, and Hartman, K.L. 2011. First resighting of killer whales (Orcinus orca) off the Azores Archipelago. Proceedings of the 25 th Annual Conference of the Europen Cetacean Society, Cadiz, Spain, 21-23 March.

Cosentino, A; Hartman, K.L.; Weilermann, D; Garcia, L.G; and Visser F. 2010. Spatial and temporal distribution of Hyperoodon ampullatus off Pico Island, Azores. Proceedings of the 24 th Annual Conference of the Europen Cetacean Society, Stralsund, Germany, 22-24 March.

Weilermann, D; Hartman, K.L.; Cosentino,A; Garcia, L.G; and Visser F. 2010. First ID Cataloque of Northern bottlenose whales Hyperoodon ampullatus off Pico island, Azores. Proceedings of the 24 th Annual Conference of the Europen Cetacean Society, Stralsund, Germany, 22-24 March.

Hartman, K.L.; Geelhoed, S; Visser, F; and Azevedo J. N. 2009. Temporal residency patterns of Risso’s dolphins (Grampus griseus) off Pico island. Proceedings of the 18th Biennial Conference of the Society for Marine Mammalogy. Quebec City, Canada.

Hartman, K.L.; Visser, F; and Hendriks A. J. E. 2008 . 2008. Social structure of Risso's dolphins (Grampus griseus) at the Azores: a stratified community based on highly associated social units. Proceedings of the 22 th Annual Conference of the European Cetacean Society. Egmond aan Zee, The Netherlands.

Van Geel, N; Visser, F; Hartman, K.L.; Hendriks, A.J.E; and Huisman, J. 2008. Spatial analyses of cetacean distribution off the south coast of Pico (Azores, Portugal) in relation to water depth and slope gradient. Proceedings of the 22 th Annual Conference of the European Cetacean Society. Egmond aan Zee, The Netherlands.

Visser, F; Hartman, K.L.; and Hendriks, A.J.E. 2008. Stepping stones Azores: Baleen whale feeding ground during migration over North Atlantis Ocean. Proceedings of the 22 th Annual Conference of the European Cetacean Society. Egmond aan Zee, The Netherlands.

Simiao, S; Hartman, K.L.; Hendriks, A.J.E; Visser, F; and Azevedo J.N. 2008. Residency patterns of bottlenose dolphins (Tursiops truncates) off Pico island, Azores. Proceedings of the 22 th Annual Conference of the European Cetacean Society. Egmond aan Zee, The Netherlands.

Lindeyer, C. M; Hartman, K.L.; Visser, F; Hendriks, A.J. E: and Van Dooren, T.M. 2007. Temporal patters of distribution of bottlenose dolphins (Tursiops truncates) off the south coast of Pico island, Azores. Proceedings of the 21 th Annual Conference of the European Cetacean Society. San Sebastian, Spain.

Oudejans, M; Visser, F; Hartman, K.L.; and Hendriks, A.J.E. 2007. High whale watching vessel abundance affects the daily resting patters of Risso’s dolphin. Proceedings of the 21 th Annual Conference of the European Cetacean Society. San Sebastian, Spain.

Visser, F; Hartman, K.L.; and Hendriks, A.J.E. 2007.
Land observations at the Azores: efficient tool for management. Proceedings of the 21 th Annual Conference of the European Cetacean Society. San Sebastian, Spain.

Visser, F; Hartman, K.L.; Rood, E.J.J; Hendriks, A.J.E; and Wolff, W.J. 2006. Effects of whale watching activities on Risso’s dolphin resting behaviour at the Azores. Proceedings of the 20 th Annual Conference of the European Cetacean Society. Gdynia, Poland.

Visser, F; Hartman, K.L.; Hendriks, A.J.E; and Huisman. J. 2005. The Azorean waters: Critical foraging habitat for cetaceans in the central North Atlantic Ocean. Proceedings of the 19th Annual Conference of the European Cetacean Society. La Rochelle, France.

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Supervision of internships-research projects:

Gherardi, S., 2016. “Male-male home range overlap of Risso’s Dolphin (Grampus griseus) off Pico Island (Azores)”. MSc Endangered Species Recovery and Conservation thesis, Nottingham Trent University, England, 1-57.

J. Libotte, 2014: “Impact of whale-watching tour boats on the behaviour of Risso's dolphin population off Pico Island, Azores”. Master thesis. University of Paris 13, France.

D. Suijker, 2013: “Detailed insights in the functioning of the male Risso’s dolphins (Grampus griseus) reproduction strategies”. Master thesis, Wageningen University, The Netherlands

T. van der Stap, 2013: “Data analysis model selection for estimating local population size of the Risso’s dolphin (Grampus griseus) in the Azores . Master thesis, Wageningen University, The Netherlands

C. Neijmeijer 2012: “Updating the Sperm Whale catalogue from Pico Island”, resulted in a poster presentation at ECS, internship for Hogeschool Den Bosch, The Netherlands.

POSTER: Niemeijer, S. C.; Libotte, J. ; Hartman, K. L.; Steiner, L. & Azevedo, J. M.N. 2013. Presence of sperm whales (Physeter macrocephalus) around the Azores: A study of re-sightings off the South of Pico from 2003-2012. Proceedings of the 27 th Annual Conference of the European Cetacean Society. Setubal, Portugal, April.

B. Adam, 2011: “The social structure of Risso’s Dolphins (Grampus griseus) off the south coast of Pico Island, Azores”. Master thesis. University of Natural Resources and Life Sciences, Vienna, Austria.

P. Biekart, 2010: “Preliminary analysis of the spatial distribution of different group types of Grampus griseus off Pico Island, Azores”. Bachelor thesis, Hogeschool Zeeland, Vlissingen, The Netherlands.

2009: Two bachelor internships resulting in and updated identification catalogue for Northern bottlenose whales, Hyperoodon ampullatus, and 2 posters at ECS:
1)-Cosentino, A; Hartman, K.L; Weilermann, D; Garcia, L.G; and Visser F. 2010. Spatial and temporal distribution of Hyperoodon ampullatus off Pico Island, Azores. Proceedings of the 24 th Annual Conference of the Europen Cetacean Society, Stralsund, Germany, 22-24 March.
2)-Weilermann, D; Hartman, K.L; Cosentino,A; Garcia, L.G; and Visser F. 2010. First ID Cataloque of Northern bottlenose whales, Hyperoodon ampullatus off Pico island, Azores. Proceedings of the 24 th Annual Conference of the Europen Cetacean Society, Stralsund, Germany, 22-24 March.

S. Simiao 2007: "Photo Identification of Bottlenose Dolphin (Tursiops truncatus) off the south coast of Pico, Azores". Bachelor thesis, University of the Azores, Biology Department.

F. Adamcyk, 2007: "The effect of whale watching boats on behavior of the Risso’s dolphin (Grampus griseus), Azores". Master thesis, University of Wageningen, The Netherlands .

N. van Geel, 2006: "Spatial and temporal analyses of cetacean distribution off the south coast of Pico (Azores, Portugal) in relation to the`bathymetric features water depth and slope gradient". Master thesis, Utrecht University-University of Amsterdam, The Netherlands.

C. Lindeyer, 2006: "Temporal patters of distribution of bottlenose dolphins (Tursiops truncates) off the south coast of Pico island, Azores.". Master thesis, University of Leiden, The Netherlands.

M. Oudejans, 2005: "The effect of whale watching on Risso's dolphins: Behavioral differences between male and mother groups." Master thesis, international MSc program ‘Limnology & Oceanography’, University of Amsterdam, The Netherlands.

M.de Ruyter, 2005: "Photo identification and the set up of a ID-Catalogue of the bottlenose dolphins (Tursiops truncatus) off Pico island." Bachelor degree Van Hall Institute/University of Wageningen, The Netherlands.

E. Rood, 2004: "Risso's Resilience in a Disturbed environment: alterations of the short term behaviour of the Risso's dolpin (Grampus griseus), in response to whale watching activities in the Bay of Ribeiras, Pico, the Azores". Master thesis, international MSc program ‘Limnology & Oceanography’, University of Amsterdam, The Netherlands.

R. Hensgens, 2004: "Photo Identification of the Risso's dolphin (Grampus griseus) off the south coast of Pico, Azores". Bachelor degree, VU, University of Amsterdam The Netherlands

F. Visser, 2003: "Social structure and behavioral patterns of the Risso's dolphin (Grampus griseus) off the south coast of Pico, Azores". Master thesis, international MSc program ‘Limnology & Oceanography’, University of Amsterdam, The Netherlands.

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