Edinburgh Napier University

Migratory timing of humpback whales (Megaptera novaeangliae) in the central North Pacific varies with age, sex and reproductive status.

Journal Article

Craig, A. S., Herman, L. M., Gabriele, C. M., & Pack, A. A. (2002)

Migratory timing of humpback whales (Megaptera novaeangliae) in the central North Pacific varies with age, sex and reproductive status. Behaviour, 140, (981-1000). doi:10.1163/156853903322589605. ISSN 0005-7959

Humpback whales migrate seasonally between high-latitude summer feeding grounds and low-latitude winter breeding grounds. Identification photographs of humpback whales were co...

Resightings of humpback whales in Hawaiian waters over spans of 10-32 years: Site fidelity, sex ratios, calving rates, female demographics, and the dynamics of social and behavioral roles of individuals

Journal Article

Herman, L. M., Pack, A. A., Rose, K., Craig, A., Herman, E. Y. K., Hakala, S., & Milette, A. (2011)

Resightings of humpback whales in Hawaiian waters over spans of 10-32 years: Site fidelity, sex ratios, calving rates, female demographics, and the dynamics of social and behavioral roles of individuals. Marine Mammal Science, 27(4), 736-768. https://doi.org/10.1111/j.1748-7692.2010.00441.x

From a database of approximately 5,000 Hawaiian humpback whales identified photographically between 1976 and 2010, we extracted 71 males and 39 females having resighting spans...

Diurnal increases in depths of humpback whale (Megaptera novaeangliae) mother‐calf pods off West Maui, Hawaiʻi: A response to vessels?

Journal Article

Pack, A. A., Waterman, J. O., & Craig, A. S. (2022)

Diurnal increases in depths of humpback whale (Megaptera novaeangliae) mother‐calf pods off West Maui, Hawaiʻi: A response to vessels?. Marine Mammal Science, 38(4), 1340-1356. https://doi.org/10.1111/mms.12926

Studies of humpback whale (Megaptera novaeangliae) habitat use in their Hawaiian breeding grounds have revealed that mother-calf pairs favor shallow waters to avoid harassment...

Size-assortative pairing and discrimination of potential mates by humpback whales in the Hawaiian breeding grounds

Journal Article

Pack, A. A., Herman, L. M., Spitz, S. S., Craig, A. S., Hakala, S., Deakos, M. H., …Lowe, C. (2012)

Size-assortative pairing and discrimination of potential mates by humpback whales in the Hawaiian breeding grounds. Animal Behaviour, 84(4), 983-993. https://doi.org/10.1016/j.anbehav.2012.07.024

Assortative pairing, and its relation to mate choice, has rarely been documented in mammals. Using data collected from 1998-2007, we investigated size-assortative pairing as i...

Habitat segregation by female humpback whales in Hawaiian waters: avoidance of males?

Journal Article

Craig, A. S., Herman, L. M., Pack, A. A., & Waterman, J. (2014)

Habitat segregation by female humpback whales in Hawaiian waters: avoidance of males?. Behaviour, 151(5), 613-631. https://doi.org/10.1163/1568539x-00003151

Humpback whales congregate annually in low-latitude winter breeding and calving grounds. While on these grounds, females with a dependent calf (‘maternal females’) are sometim...

Habitat preferences by individual humpback whale mothers in the Hawaiian breeding grounds vary with the age and size of their calves

Journal Article

Pack, A. A., Herman, L. M., Craig, A. S., Spitz, S. S., Waterman, J. O., Herman, E. Y., …Lowe, C. (2017)

Habitat preferences by individual humpback whale mothers in the Hawaiian breeding grounds vary with the age and size of their calves. Animal Behaviour, 133, 131-144. https://doi.org/10.1016/j.anbehav.2017.09.012

We investigated whether calf age and calf size influence habitat choice by humpback whale motherecalf pairs in their breeding grounds. During 1997e2008, we conducted focal fol...

Male mate choice and male-male competition coexist in the humpback whale (Megaptera novaeangliae).

Journal Article

Craig, A. S., Herman, L. M. & Pack, A. A. (2002)

Male mate choice and male-male competition coexist in the humpback whale (Megaptera novaeangliae). Canadian Journal of Zoology. 80, 745-755. doi:10.1139/z02-050. ISSN 0008-4301

Male humpback whales (Megaptera novaeangliae) outnumber females on the winter grounds and compete physically for proximity to females. Analyses of identification photographs c...

Estimating the mortality rate of humpback whale calves in the central North Pacific ocean.

Journal Article

Gabriele, C. M., Straley, J. M., Mizroch, S. A., Baker, C. S., Craig, A. S., Herman, L. M., …Jacobsen, J. K. (2000)

Estimating the mortality rate of humpback whale calves in the central North Pacific ocean. Canadian Journal of Zoology. 79, 589-600. doi:10.1139/cjz-79-4-589. ISSN 0008-4301

Sighting histories of individually identified female humpback whales (Megaptera novaeangliae) in their winter and summer ranges were used to investigate mortality of North Pac...

Penis extrusions by humpback whales (Megaptera novaeangliae) on the Hawaiian winter grounds.

Journal Article

Pack, A. A., Herman, L. M., Craig, A. S., Spitz, S. S. & Deakos, M. H. (2001)

Penis extrusions by humpback whales (Megaptera novaeangliae) on the Hawaiian winter grounds. Aquatic mammals. 28, 131-146. ISSN 0167-5427

The annual winter assembly of humpback whales (Megaptera novaeangliae) in tropical waters has been linked to reproductive activities, including birthing, calf-rearing, and mat...