Results 31 to 40 of about 10,382 (200)

Santa Elina, Mato Grosso, site ancien au centre de l’Amérique du Sud

open access: yesBrésil(s), 2022
Due to its geographical location and its Pleistocene-era antiquity, the Santa Elina rock shelter renews the analysis of prehistoric settlements in South America. In the mountains where the shelter is hidden, Pleistocene men hunted a Glossotherium, 27,000
Denis Vialou, Águeda Vilhena Vialou
doaj   +1 more source

Supplementary Material for "Rethinking megafauna"

open access: yes, 2020
Concern for megafauna is increasing among scientists and non-scientists. Many studies have emphasized that megafauna play prominent ecological roles and provide important ecosystem services to humanity. But, what precisely are ‘megafauna’?
Rebecca Lewison (93006)   +26 more
core   +1 more source

Using Drone Footage to Analyze the Effect of Diver Presence on Juvenile Manta Ray Behavior

open access: yesDrones
Manta ray tourism has become a multi-million-dollar industry proposed as a conservation tool in recent decades; however, its impacts remain unclear. We use drones and Markov models to quantify the effects of diver presence on a juvenile population of the
Miguel de Jesús Gómez-García   +2 more
doaj   +1 more source

Contrasting Habitat Use and Population Dynamics of Reef Manta Rays Within the Nusa Penida Marine Protected Area, Indonesia

open access: yesFrontiers in Marine Science, 2019
Manta rays (Mobula spp.) are highly valued in nature-based tourism globally. In Indonesia, although manta rays are protected, critical information is lacking on their habitat use, population dynamics and movements. We investigate the population structure
Elitza S. Germanov   +15 more
doaj   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Saving the World's Terrestrial Megafauna [PDF]

open access: yes, 2016
From the late Pleistocene to the Holocene and now the so-called Anthropocene, humans have been driving an ongoing series of species declines and extinctions (Dirzo et al. 2014).
Campos-Arceiz, Ahimsa   +132 more
core   +2 more sources

Trophic and feeding ecology of whale sharks (Rhincodon typus) using bulk stable isotope analysis

open access: yesFrontiers in Fish Science
IntroductionDespite their size, relatively passive behavior, and commercial significance, knowledge of the behavioral ecology of whale sharks remains limited.
Clare E. M. Prebble   +4 more
doaj   +1 more source

Are we eating the world's megafauna to extinction?

open access: yesConservation Letters, 2019
Many of the world's vertebrates have experienced large population and geographic range declines due to anthropogenic threats that put them at risk of extinction. The largest vertebrates, defined as megafauna, are especially vulnerable.
William J. Ripple   +9 more
doaj   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

open access: yesThe Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman   +9 more
wiley   +1 more source

Drone-Based Assessment of Marine Megafauna off Wave-Exposed Sandy Beaches

open access: yesRemote Sensing, 2023
The wave-impacted waters off exposed sandy beaches support marine megafauna, including dolphins, whales, sharks, rays and turtles. To characterise variation in megafaunal assemblages in this challenging habitat, we used drone-based remote sensing to ...
Brendan P. Kelaher   +6 more
doaj   +1 more source

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