Results 41 to 50 of about 1,746 (173)

Use of hormones in assessing reproductive physiology of humpback whales (Megaptera novaeangliae) from Juneau, Alaska

Theriogenology Wild, 2023
Humpback whales (Megaptera novaeangliae) in Southeast Alaska have been studied for over 50 years, and are largely considered a recovery success since the cessation of commercial whaling.
S. Atkinson, V. Melica, S. Teerlink, K. Mashburn, J. Moran, H. Pearson   +5 more
doaj   +1 more source

A Note on Suckling Behavior and Laterality in Nursing Humpback Whale Calves from Underwater Observations

Animals, 2017
We investigated nursing behavior on the Hawaiian breeding grounds for first year humpback whale (Megaptera novaeangliae) calves. We observed and video-documented underwater events with nursing behavior from five different whale groups.
Ann M. Zoidis, Kate S. Lomac-MacNair
doaj   +1 more source

High collocation of sand lance and protected top predators: Implications for conservation and management

Conservation Science and Practice, 2021
Spatial relationships between predators and prey provide critical information for understanding and predicting climate‐induced shifts in ecosystem dynamics and mitigating human impacts. We used Stellwagen Bank National Marine Sanctuary as a case study to
Tammy L. Silva, David N. Wiley, Michael A. Thompson, Peter Hong, Les Kaufman, Justin J. Suca, Joel K. Llopiz, Hannes Baumann, Gavin Fay   +8 more
doaj   +1 more source

Digital surveillance of animals and nature recovery

People and Nature, EarlyView.
Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley   +1 more source

Cetáceos de El Salvador, una revisión y actualización sobre sus registros

Revista Minerva, 2022
El presente trabajo comprende la revisión de diferentes fuentes bibliográficas, comunicaciones personales y registros de los autores entre 2002 y 2019. Además, se revisó el registro del Ministerio de Medio Ambiente y Recursos Naturales (MARN).
Ricardo Ibarra Portillo, José Enrique Barraza Sandoval, Luis Pineda, Wilfredo A. López, Lisa Ballance   +4 more
doaj   +1 more source

Microplastic in a macro filter feeder: Humpback whale Megaptera novaeangliae

Marine Pollution Bulletin, 2015
Marine filter feeders are exposed to microplastic because of their selection of small particles as food source. Baleen whales feed by filtering small particles from large water volumes. Macroplastic was found in baleen whales before. This study is the first to show the presence of microplastic in intestines of a baleen whale (Megaptera novaeangliae ...
Besseling, E., Foekema, E.M., van Franeker, J.A., Leopold, M.F., Bravo Rebolledo, E., Kühn, S., Mielke, L., Heberle-Bors, E., Ijzer, J., Kamminga, P., Koelmans, A.A.   +10 more
openaire   +3 more sources

Maximizing eDNA detections of rare marine organisms: A case study of a delphinid species

Methods in Ecology and Evolution, EarlyView.
Abstract Environmental DNA (eDNA) is an emerging tool for surveying marine organisms. Advances in molecular assay designs and bioinformatic methods provide new opportunities for detecting rare species; however, overcoming methodological challenges of rare species detection remains an important obstacle for the widespread deployment of eDNA methods for ...
Nastassia V. Patin, Eiren K. Jacobson, Zachary Gold, Amy M. Van Cise, Julie Dinasquet, Bryce Ellman, Robert H. Lampe, Anne Schulberg, Noelle Bowlin, Ryan Freedman, Erin Satterthwaite, Andrew E. Allen, Brice X. Semmens   +12 more
wiley   +1 more source

Comparative review of entanglement risk assessments for cetacean conservation and management

Conservation Biology, EarlyView.
Abstract Cetacean entanglement in fishing gear remains a major global threat that exposes persistent gaps in how fisheries management frameworks manage risk to nontarget species. Ecological risk assessment (ERA) offers a structured way to link exposure and consequences to an explicit statement of risk, but entanglement risk assessments vary widely in ...
Laura Joan Feyrer, Clair Evers, Hilary Moors‐Murphy   +2 more
wiley   +1 more source

Stranded humpback whale (Megaptera novaeangliae) (Cetacea: Balaenopteridae) in Paraná River Delta, Buenos Aires Province, Argentina. Comments on the occurrence of marine mammals in the La Plata River Basin

Papéis Avulsos de Zoologia, 2018
The humpback whale (Megaptera novaeangliae) is distributed among most oceans and seas of the globe (except Mediterranean Sea). These whales migrate from feeding regions in the Antarctic waters to breeding areas in tropical and subtropical seas.
Sergio O. Lucero, María Constanza Gariboldi, Valeria Bauni, Juan Manuel Meluso, Daniela del Castillo, Federico L. Agnolin, Sergio Bogan   +6 more
doaj   +1 more source

Time‐stressed Bar‐tailed Godwits exploit novel prey during migratory fuelling

Ibis, EarlyView.
Long‐distance migratory birds breeding in the Arctic face challenges as earlier snowmelt shifts the timing of vital resources. To keep up with these advancements, birds will need to modify their migration. Higher fuelling rates during stopover have been identified as a critical mechanism for accelerating migration, but this requires adequate food ...
Hailley Danielson‐Owczynsky, Allert I. Bijleveld, Ran Nathan, Sivan Toledo, Roeland A. Bom   +4 more
wiley   +1 more source