On the rise: Climate change in New Zealand will cause sperm and blue whales to seek higher latitudes

Peters, Katharina J.; Stockin, Karen A.; Saltré, Frédérik

doi:10.1016/j.ecolind.2022.109235

Cited by 9 publications

(7 citation statements)

References 113 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The implications of migratory whale herd structure warrant particular consideration when predicting species’ resilience to a changing climate (e.g., Gulland et al, 2022; Hazen et al, 2012; Peters et al, 2022). Population structure that is mediated by behavior learned during the natal migration might be expected to change more rapidly than population structure defined by geographical constraints, possibly conferring greater resiliency to the changes in habitat quality expected to result from climate change (Keith & Bull, 2017).…”

Section: Discussionmentioning

confidence: 99%

The migratory whale herd concept: A novel unit to conserve under the ecological paradigm

Martien

Taylor

Lang

et al. 2023

Marine Mammal Science

View full text Add to dashboard Cite

Photographic and genetic studies have revealed the complex population structure of migratory large whales. Most research and management are geographically based, focusing on either wintering or summering areas, which in most cases fails to capture this complexity. We use examples from humpback whales (Megaptera novaeangliae) and gray whales (Eschrichtius robustus) to illustrate the concept of migratory herds, defined here as conspecific whales that migrate between the same wintering and feeding ground. In cases where individuals show strong fidelity to both feeding and wintering grounds, and therefore to a herd, dispersal between herds can be low enough to render them as demographically independent populations, where population dynamics are determined more by net internal recruitment (births minus deaths) than by immigration from outside sources. In these cases, the migratory whale herd is the appropriate unit to conserve under the ecological paradigm that focuses on groups united by demographic forces. We suggest that when addressing questions focused on ecological timescales for whale species with strong fidelity to migratory destinations, the migratory whale herd is a better initial working hypothesis rather than one based on geographically defined strata.

show abstract

Section: Discussionmentioning

confidence: 99%

The migratory whale herd concept: A novel unit to conserve under the ecological paradigm

Martien

Taylor

Lang

et al. 2023

Marine Mammal Science

View full text Add to dashboard Cite

show abstract

“…The phenomenon of increases in sea temperature, as a climate-related alteration to ocean conditions, has affected latitudinal shifts toward suitable habitats for cetaceans and changes in the timing of their migration [23,63]. In this study, the variability of SST averaged during March-April around the main hotspot of common dolphins was low over the past decade (Figure 5).…”

Section: Discussionmentioning

confidence: 64%

Environmental Factors Influencing Annual Changes in Bycatch per Unit Effort of Delphinus delphis around Their Main Hotspot in Korean Waters

Yoo,

Lee,

Joo

2024

JMSE

View full text Add to dashboard Cite

In this study, the characteristics of temporal changes in bycatch per unit effort (BPUE) as an index of the relative density of the common dolphin around their widest hotspot in the East Sea/Sea of Japan were examined from 2011 to 2021. BPUE rapidly increased from 2017 to 2019. The annual changes in BPUE were due to changes during March–April, which is the most abundant season for common dolphins. The annual relationship between BPUE and four variables (Pacific herring, common squid catches, chlorophyll-a concentration, and sea surface temperature) around their main hotspot for March–April was investigated using generalized linear models (GLMs) for gamma distribution. A stepwise Bayesian information criterion for the gamma GLM yielded significant retention of two variables, Pacific herring catch and chlorophyll-a concentration, over the study period, indicating that the rapid increase of the relative density of the common dolphin in the early spring during 2017–2019 could be due to the increase of their prey abundance caused by higher primary productivity. Therefore, ecosystem productivity altered by nutrient conditions could be a key biological process that enhances habitat use of cetaceans in highly productive seasons and regions.

show abstract

“…Sea ice declines and concomitant changes in ocean temperatures could be a critical catalyst in the emergence of infectious diseases in AMMs. Recent publications on climate change and marine mammal health demonstrate the gravity of the impact of changes in the environment on marine mammals [ 50 , 383 , 420 , 421 ]. Unfortunately, the lack of systematic monitoring for disease has resulted in knowledge gaps regarding the implications for the health status of AMMs.…”

Section: Discussionmentioning

confidence: 99%

A Review of Circumpolar Arctic Marine Mammal Health—A Call to Action in a Time of Rapid Environmental Change

et al. 2023

View full text Add to dashboard Cite

The impacts of climate change on the health of marine mammals are increasingly being recognised. Given the rapid rate of environmental change in the Arctic, the potential ramifications on the health of marine mammals in this region are a particular concern. There are eleven endemic Arctic marine mammal species (AMMs) comprising three cetaceans, seven pinnipeds, and the polar bear (Ursus maritimus). All of these species are dependent on sea ice for survival, particularly those requiring ice for breeding. As air and water temperatures increase, additional species previously non-resident in Arctic waters are extending their ranges northward, leading to greater species overlaps and a concomitant increased risk of disease transmission. In this study, we review the literature documenting disease presence in Arctic marine mammals to understand the current causes of morbidity and mortality in these species and forecast future disease issues. Our review highlights potential pathogen occurrence in a changing Arctic environment, discussing surveillance methods for 35 specific pathogens, identifying risk factors associated with these diseases, as well as making recommendations for future monitoring for emerging pathogens. Several of the pathogens discussed have the potential to cause unusual mortality events in AMMs. Brucella, morbillivirus, influenza A virus, and Toxoplasma gondii are all of concern, particularly with the relative naivety of the immune systems of endemic Arctic species. There is a clear need for increased surveillance to understand baseline disease levels and address the gravity of the predicted impacts of climate change on marine mammal species.

show abstract

On the rise: Climate change in New Zealand will cause sperm and blue whales to seek higher latitudes

Cited by 9 publications

References 113 publications

The migratory whale herd concept: A novel unit to conserve under the ecological paradigm

The migratory whale herd concept: A novel unit to conserve under the ecological paradigm

Environmental Factors Influencing Annual Changes in Bycatch per Unit Effort of Delphinus delphis around Their Main Hotspot in Korean Waters

A Review of Circumpolar Arctic Marine Mammal Health—A Call to Action in a Time of Rapid Environmental Change

Contact Info

Product

Resources

About