Results 21 to 30 of about 3,578 (217)

MARCAS EM FÓSSEIS DE MEGAFAUNA EM LAGOA DA PEDRA, SALGUEIRO-PE

Clio Arqueológica, 2020
Este trabalho descreve marcas encontradas em fósseis de mamíferos pleistocênicos do Sítio Lagoa da Pedra, que fica localizado no distrito de Conceição das Creoulas, identificando possíveis relações temporais e/ou físicas entre os grupos pré-históricos e ...
Eduarda Tavares Peters, Edison Vicente Oliveira   +1 more
doaj   +1 more source

Habitat Use, Residency, and Connectivity of Bull Sharks (Carcharhinus leucas) in the Bazaruto Seascape, Mozambique

Fishes
Bull sharks (Carcharhinus leucas) are highly mobile coastal predators, whose broad movements complicate conservation planning, particularly in the Western Indian Ocean, where key habitats remain poorly understood.
Stephanie K. Venables, Lukas Müller, Christoph A. Rohner, Andrea D. Marshall, Jimmy van Rijn, Nilza de Catarina, John D. Filmalter, Ryan Daly   +7 more
doaj   +1 more source

Climate Change Will Re-draw the Map for Marine Megafauna and the People Who Depend on Them

Frontiers in Marine Science, 2020
Climate change is expected to dramatically alter the distribution of many marine megafauna, impacting the people and economies that depend upon them. We build on the recent literature by developing a framework to describe the effects these changes will ...
Susan O. Grose, Linwood Pendleton, Linwood Pendleton, Linwood Pendleton, Linwood Pendleton, Linwood Pendleton, Amanda Leathers, Andrew Cornish, Sheridan Waitai   +8 more
doaj   +1 more source

Cutmarked bone of drought-tolerant extinct megafauna deposited with traces of fire, human foraging, and introduced animals in SW Madagascar

Scientific Reports, 2022
People could have hunted Madagascar’s megafauna to extinction, particularly when introduced taxa and drought exacerbated the effects of predation. However, such explanations are difficult to test due to the scarcity of individual sites with unambiguous ...
Sean W. Hixon, Alejandra I. Domic, Kristina G. Douglass, Patrick Roberts, Laurie Eccles, Michael Buckley, Sarah Ivory, Sarah Noe, Douglas J. Kennett   +8 more
doaj   +1 more source

The functional extinction of Andean megafauna [PDF]

Ecology, 2016
AbstractControversy exists over the cause and timing of the extinction of the Pleistocene megafauna. In the tropical Andes, deglaciation and associated rapid climate change began ~8,000 years before human arrival, providing an opportunity to separate the effects of climate change from human hunting on megafaunal extinction. We present a paleoecological
Angela, Rozas-Davila, Bryan G, Valencia, Mark B, Bush   +2 more
openaire   +2 more sources

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

Drones
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, Amanda L. O’Brien, Jessica H. Pate   +2 more
doaj   +1 more source

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

Frontiers 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, Elitza S. Germanov, Elitza S. Germanov, Lars Bejder, Lars Bejder, Delphine B. H. Chabanne, Delphine B. H. Chabanne, Dharmadi Dharmadi, I. Gede Hendrawan, Andrea D. Marshall, Simon J. Pierce, Mike van Keulen, Mike van Keulen, Neil R. Loneragan, Neil R. Loneragan, Neil R. Loneragan   +15 more
doaj   +1 more source

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

Frontiers 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, Lydie I. E. Couturier, Christoph A. Rohner, Simon J. Pierce, Clive N. Trueman   +4 more
doaj   +1 more source

Are we eating the world's megafauna to extinction?

Conservation 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, Christopher Wolf, Thomas M. Newsome, Matthew G. Betts, Gerardo Ceballos, Franck Courchamp, Matt W. Hayward, Blaire VanValkenburgh, Arian D. Wallach, Boris Worm   +9 more
doaj   +1 more source

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

Brésil(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