Results 71 to 80 of about 10,382 (200)

Climate-human interaction associated with southeast Australian megafauna extinction patterns

Nature Communications, 2019
Whether Australia’s Pleistocene megafauna extinctions were caused by climate change, humans, or both is debated. Here, the authors infer the spatio-temporal trajectories of regional extinctions and find that water availability mediates the relationship ...
Frédérik Saltré, Joël Chadoeuf, Katharina J. Peters, Matthew C. McDowell, Tobias Friedrich, Axel Timmermann, Sean Ulm, Corey J. A. Bradshaw   +7 more
doaj   +1 more source

Few Annotations, High Accuracy: Transfer Learning and Data Augmentation Improve Passive Acoustic Monitoring of the Vulnerable African Manatee

Remote Sensing in Ecology and Conservation, EarlyView.
Can deep learning reliably detect a threatened species in passive acoustic monitoring with few annotations? Across 52 sites and 600 recording days, we compared two deep learning recognizers with the traditional machine learning Kaleidoscope for detecting African manatee vocalizations.
Lucas Dubus, Auguste Verdier, Nina Giotto, Grace Mbemba, Gabriel Michelin, Baptiste Mulot, Stéphanie Manel, David Mouillot   +7 more
wiley   +1 more source

Livestock grazing and geodiversity modulate wild herbivore distributions in an African community conservation area

Wildlife Biology, EarlyView.
The rapid decline of African wildlife populations demands immediate action to mitigate further losses and restore ecosystems. A key factor influencing wildlife distribution is the relationship between the energetic needs of species and the availability of forage, both in terms of quality and quantity.
Laura Ryge Koch, Jens‐Christian Svenning, Mads Gammelgaard, Robert Buitenwerf   +3 more
wiley   +1 more source

Freshwater megafauna shape ecosystems and facilitate restoration [PDF]

Freshwater megafauna, such as sturgeons, giant catfishes, river dolphins, hippopotami, crocodylians, large turtles, and giant salamanders, have experienced severe population declines and range contractions worldwide.
Tockner, Klement, Gessner, Jörn, Jähnig, Sonja C., He, Fengzhi, Kuemmerle, Tobias, Svenning, Jens-Christian, Chen, Xing, Le Roux, Elizabeth, Moleón, Marcos   +8 more
core   +5 more sources

Facing Truths About Population Management

Zoo Biology, EarlyView.
Populations of wildlife, and domestic animals have large sinks for surplus animals. By contrast, zoos don't. Humans in industrialized societies are socialized with companion animals, i.e. surplus (i.e., typically denied reproduction) originating from unseen breeding cores.
Marcus Clauss, Andrew J. Abraham, Jörg Beckmann, Mads F. Bertelsen, Laurie Bingaman Lackey, Anita Burkevica, Miguel Casares, Severin Dressen, Adam Eyres, Karin Federer, Richard Gibson, Sven Hammer, Therese Hard, Stefan Hoby, Felix V. Husemann, Jacques Kaandorp, Christine M. Kaandorp‐Huber, Bjarne Klausen, Tobias Knauf‐Witzens, José Kok, Maya S. Kummrow, Sébastien Laurent, Arne Lawrenz, Sabrina Linn, Imke Lueders, Pascal Marty, Dennis W. H. Müller, Baptiste Mulot, Rolf‐Arne Ølberg, Theo B. Pagel, Zjef Pereboom, Jan Pluháček, Emile F. Prins, Sandra Reichler‐Danielowski, Douglas Richardson, Marco Roller, Lara Scherer, Tim F. Schikora, Chrispijn M. Schilp, Mark Snowball, Julia Stagegaard, Hanspeter W. Steinmetz, Job B. G. Stumpel, Cyriel Ververs, Chris Walzer, Christian Wenker, Guido Westhoff, Brian Zimmerman, João Pedro Meireles   +48 more
wiley   +1 more source

On the Benthic Invertebrate Megafauna at the Mid-Atlantic Ridge, in the Vicinity of the Charlie-Gibbs Fracture Zone

, 2012
Little is known about the fauna that inhabits non-chemosynthetic environments associated with mid-ocean ridges. This thesis investigates a ridge and fracture zone system to assess its influence as a barrier to faunal dispersal, and as a unique bathyal ...
Alt, Claudia Hannelore. S.
core   +1 more source

Conservation beyond protected areas: Using vertebrate species ranges and biodiversity importance scores to inform policy for an east African country in transition

Conservation Science and Practice, 2020
Conservation in eastern and southern Africa has historically centered on megafauna and protected areas (PAs), yet, in the face of rapid change, biodiversity outside of PAs is under threat.
Peter Tyrrell, Johan T. duToit, David W. Macdonald   +2 more
doaj   +1 more source

Soil and microbial responses to wild ungulate trampling depend more on ecosystem type than trampling severity

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Physical trampling is a ubiquitous activity of walking vertebrates, but is poorly understood as a mechanism impacting biogeochemical cycling in soil. Lack of detailed knowledge of soil abiotic–biotic interactions underlying trampling effects, and the primary sources of ...
G. Adam Meyer, Shawn J. Leroux, Kathryn E. Hargan, Niels van Miltenburg   +3 more
wiley   +1 more source

Environmental drivers of megafauna and hominin extinction in Southeast Asia

, 2020
Southeast Asia has emerged as an important region for understanding hominin and mammalian migrations and extinctions. High-profile discoveries have shown that Southeast Asia has been home to at least five members of the genus Homo.
Roberts, Patrick, Roberts, P., Louys, Julien, Louys, J.   +3 more
core   +1 more source

Splendid oddness: revisiting the curious trophic relationships of South American Pleistocene mammals and their abundance

Anais da Academia Brasileira de Ciências, 2014
The South American Pleistocene mammal fauna includes great-sized animals that have intrigued scientists for over two centuries. Here we intend to update the knowledge on its palaeoecology and provide new evidence regarding two approaches: energetics and ...
RICHARD A. FARIÑA, ADA CZERWONOGORA, MARIANA DI GIACOMO   +2 more
doaj   +1 more source