Results 41 to 50 of about 296,433 (211)

In-Water Photo Identification, Site Fidelity, and Seasonal Presence of Harbor Seals (Phoca vitulina richardii) in Burrows Pass, Fidalgo Island, Washington

Oceans
Little is known about the in-water behavior and site fidelity of harbor seals (Phoca vitulina richardii), as most photo-identification (photo-ID) studies are typically conducted while they are hauled-out on land.
Ciera J. Edison, Cindy R. Elliser, Katrina H. White   +2 more
doaj   +1 more source

Elucidating Patterns in the Occurrence of Threatened Ground-Dwelling Marsupials Using Camera-Traps

Animals, 2019
Establishing trends in endangered fauna against management efforts is a key but often challenging enterprise. Camera-traps offer a new and literal window into monitoring many different mammalian species.
Andrew W. Claridge, David J. Paull, Dustin J. Welbourne   +2 more
doaj   +1 more source

Bird-nest analysis: A rarely tested noninvasive survey method for monitoring mammals [PDF]

Archives of Biological Sciences, 2018
Surveys of mammals can be difficult to carry out due to their elusive lifestyle and nocturnal behavior. In order to minimize the disturbance to target species, indirect or noninvasive methods are recommended. These techniques can enable the collection of
Láng Dávid L., Bíró Zsolt, Heltai Miklós, Patkó László   +3 more
doaj   +1 more source

Resident Harbor Porpoises (Phocoena phocoena vomerina) in the Salish Sea: Photo-Identification Shows Long-Term Site Fidelity, Natal Philopatry, and Provides Insights into Longevity and Behavior

Oceans
Harbor porpoises have been well studied in locations worldwide, but relatively little research has focused on site fidelity of individuals, which influences population structure and determines appropriate management and conservation measures.
Cindy R. Elliser, Katrina H. White, Maia C. Hansen   +2 more
doaj   +1 more source

Spacing behaviors and spatial recruitment of a wild rodent in response to parasitism

Ecosphere, 2017
Host spacing may benefit the parasites (e.g., enhance parasite transmission) or the hosts (e.g., reduce host infection), with profound consequences in epidemiology and host–parasite dynamics.
Pei‐Jen L. Shaner, Ai‐Yun Yu, Linghua Ke, Shou‐Hsien Li   +3 more
doaj   +1 more source

A System for Monitoring Acoustics to Supplement an Animal Welfare Plan for Bottlenose Dolphins

Journal of Zoological and Botanical Gardens, 2021
Animal sounds are commonly used by humans to infer information about their motivations and their health, yet, acoustic data is an underutilized welfare biomarker especially for aquatic animals.
Brittany L. Jones, Michael Oswald, Samantha Tufano, Mark Baird, Jason Mulsow, Sam H. Ridgway   +5 more
doaj   +1 more source

Acoustic behavior of melon-headed whales varies on a diel cycle. [PDF]

, 2015
Many terrestrial and marine species have a diel activity pattern, and their acoustic signaling follows their current behavioral state. Whistles and echolocation clicks on long-term recordings produced by melon-headed whales (Peponocephala electra) at ...
Baumann-Pickering, Simone, Hildebrand, John A, Roch, Marie A, Schnitzler, Hans-Ulrich, Wiggins, Sean M   +4 more
core   +2 more sources

Ecological drivers of movement for two sympatric marine predators in the California current large marine ecosystem

Movement Ecology
Background An animal’s movement reflects behavioral decisions made to address ecological needs; specifically, that movement will become less directional in regions with high prey availability, indicating foraging behavior.
Ladd M. Irvine, Barbara A. Lagerquist, Gregory S. Schorr, Erin A. Falcone, Bruce R. Mate, Daniel M. Palacios   +5 more
doaj   +1 more source

Effects of Failure on California Sea Lion (Zalophus californianus) Gameplay Strategies and Interest in a Cognitive Task: Implications for Cognitive Enrichment in Pinnipeds

Journal of Zoological and Botanical Gardens, 2023
Cognitive enrichment for professionally managed species has become more prevalent in recent years in both zoological and research settings and has been encouraged as a means of welfare enhancement.
Danielle L. Roberts, Holli C. Eskelinen, Kelley A. Winship, Amber M. Ramos, Mark J. Xitco   +4 more
doaj   +1 more source

Automatic Recognition of Mammal Genera on Camera-Trap Images using Multi-Layer Robust Principal Component Analysis and Mixture Neural Networks

, 2017
The segmentation and classification of animals from camera-trap images is due to the conditions under which the images are taken, a difficult task. This work presents a method for classifying and segmenting mammal genera from camera-trap images.
Diaz-Pulido, Angélica, Giraldo-Zuluaga, Jhony-Heriberto, Gomez, Alexander, Salazar, Augusto   +3 more
core   +1 more source