Results 61 to 70 of about 1,175 (199)

Diversity in olfactory bulb size in birds reflects allometry, ecology, and phylogeny [PDF]

open access: yes, 2015
The relative size of olfactory bulbs (OBs) is correlated with olfactory capabilities across vertebrates and is widely used to assess the relative importance of olfaction to a species’ ecology.
Alma   +165 more
core   +3 more sources

Interaction Between Traditional Fishers and the Neotropical Otter Lontra longicaudis (Olfers, 1818) in a Brazilian Amazon Estuary

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT The neotropical otter Lontra longicaudis (Olfers, 1818) is a semi‐aquatic carnivore from the Mustelidae family with a piscivorous habit that interacts with riverine populations because of fishing resources, and this relationship is often negative, especially in the Amazon where fishing represents an important activity for several communities ...
Dayse Souza Marques   +4 more
wiley   +1 more source

METAXYTHERIUM MEDIUM (MAMMALIA: SIRENIA) FROM UPPER MIOCENE SEDIMENTS OF THE ARENARIA DI PONSANO FORMATION (TUSCANY, ITALY) [PDF]

open access: yes, 2003
Records of Metaxytherium medium (Mammalia: Sirenia) from Tononian (Late Miocene) sediments from che Arenaria di Ponsano Formation (Tuscany, Italy) are described.
BIANUCCI, GIOVANNI, LANDINI, WALTER.
core   +6 more sources

Australian environmental issues : an overview. [PDF]

open access: yes, 1998
Australia is experiencing significant environmental problems both on land and in its marine areas and several of these problems are interconnected. Clearing of trees and woodland is still substantial and apart from adding to CO2 emissions, has a number ...
Tisdell, C. A. (Clement Allan)
core  

Morphology and function of pinniped necks: The long and short of it

open access: yesThe Anatomical Record, Volume 308, Issue 12, Page 3175-3185, December 2025.
Abstract Terrestrial vertebrates from at least 30 distinct lineages in both extinct and extant clades have returned to aquatic environments. With these transitions came numerous morphological adaptations to accommodate life in water. Relatively little attention has been paid to the cervical region when tracking this transition.
Justin Keller   +3 more
wiley   +1 more source

Marine mammal bycatch in gillnet and other entangling net fisheries, 1990 to 2011

open access: yesEndangered Species Research, 2013
Since the 1970s the role of fishery bycatch as a factor reducing, or limiting the recovery of, marine mammal populations has been increasingly recognized.
RR Reeves, K McClellan, TB Werner
doaj   +1 more source

Marine mammals and fisheries interactions in Indian seas [PDF]

open access: yes, 2013
Incidental capture of marine mammals in fishing gear is a major cause of concern. The International Union for Conservation of Nature (IUCN) identified bycatch as one of the serious threats to the marine mammals.
Jeyabaskaran, R, Vivekanandan, E
core  

Drone photogrammetry reveals contrasting body conditions of dugongs across the Indo‐Pacific

open access: yesRemote Sensing in Ecology and Conservation, Volume 11, Issue 6, Page 701-718, December 2025.
The monitoring of body condition has gained traction as a way to provide early warning signals of population decline, prompting conservation actions. However, the environmental and anthropogenic drivers of body condition variations are rarely investigated.
Camille Goudalier   +16 more
wiley   +1 more source

The Marine Mammal Class II Major Histocompatibility Complex Organization

open access: yesFrontiers in Immunology, 2019
Sirenians share with cetaceans and pinnipeds several convergent traits selected for the aquatic lifestyle. Living in water poses new challenges not only for locomotion and feeding but also for combating new pathogens, which may render the immune system ...
André Luiz Alves de Sá   +7 more
doaj   +1 more source

Tooth wear and dental calculus in a group of orca (Orcinus orca) stranded on the New Zealand southern coast

open access: yesJournal of the Royal Society of New Zealand, Volume 55, Issue 6, Page 2042-2059, December 2025.
ABSTRACT In 2014, a group of nine orca stranded in Te Waewae Bay, Western Southland, and their remains were collected, processed and studied in partnership with Ōraka Aparima Rūnaka. A total of 436 teeth were analysed to determine the location, type and intensity scores of tooth wear.
Carolina Loch   +8 more
wiley   +1 more source

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