Results 71 to 80 of about 63,162 (298)

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

The 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

A cost-effective method to quantify biological surface sediment reworking [PDF]

, 2013
We propose a simple and inexpensive method to determine the rate and pattern of surface sediment reworking by benthic organisms. Unlike many existing methods commonly used in bioturbation studies, which usually require sediment sampling, our approach is ...
AD Huryn, Antoine Lecerf, AP Covich, B Statzner, BA Zanetell, E Kristensen, Eve De Nadaï-Monoury, F Gilbert, F Gilbert, F Mermillod-Blondin, F Mermillod-Blondin, Franck Gilbert, I Sanpera-Calbet, Julie Canal, JW Moore, K Hollertz, K Mazik, K Robert, Laëtitia Buisson, LT Dafoe, M Gerino, M Solan, M-Y Sun, MA Palmer, N Friberg, O Dangles, O Maire, O Maire, P Berg, P Marmonier, Pascal Laffaille, R Development Core Team, RC Aller, RP Creed, S Lagauzère, S Mulsow, S Navel, S Schmidt   +37 more
core   +4 more sources

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Dead or alive: the effect of shells and living individuals of Sinanodonta woodiana (Lea, 1834) on habitat selection and behaviour of European unionid bivalves [PDF]

NeoBiota
1. Ecosystem engineering freshwater bivalves, burrowing in the substratum and accumulating shell deposits, transform bottom habitats. Especially the invasive Asian bivalve Sinanodonta woodiana (SW), due to its rapid growth, large size, and high fecundity,
Kamil Wiśniewski, Daniel Szarmach, Jarosław Kobak, Tomasz Kakareko, Łukasz Jermacz, Małgorzata Poznańska-Kakareko   +5 more
doaj   +3 more sources

Trophic specialization drives morphological evolution in sea snakes [PDF]

Royal Society Open Science, 2018
Viviparous sea snakes are the most rapidly speciating reptiles known, yet the ecological factors underlying this radiation are poorly understood. Here, we reconstructed dated trees for 75% of sea snake species and quantified body shape (forebody relative
Emma Sherratt, Arne R. Rasmussen, Kate L. Sanders   +2 more
doaj   +1 more source

Reproductive Den Habitat Characterization of American Badgers (\u3cem\u3eTaxidea taxus\u3c/em\u3e) in Central California [PDF]

, 2010
The American badger (Taxidea taxus) is a species of special concern in California, and, as such, conservation measures are necessary. The goal of this study was to identify potential reproductive den habitat characteristics in order to more accurately ...
Huck, Katrina Louise
core   +1 more source

The influence of macrofaunal burrow spacing and diffusive scaling on sedimentary nitrification and denitrification: An experimental simulation and model approach [PDF]

, 2003
The influence of burrow spacing on nitrification and denitrification was simulated experimentally using sediment plugs of different thicknesses immersed in aerated seawater reservoirs.
Aller, Robert Curwood, Gilbert, Franck, Hulth, Stefan   +2 more
core   +4 more sources

Patterns of interspecific variation in labial microarchitecture among anthropoid primates and the evolution of the hominin lips

The Anatomical Record, EarlyView.
Comparative histological and semi‐automated image analysis of primate lips: Masson's trichrome‐stained sagittal sections were segmented to quantify the connective tissue, adipose, and muscular components, enabling interspecific comparisons of labial architecture.
Liat Rotenstreich, Kfir Eliyahu, Nir Edery, Lior Moss, Saleem Eben Bari, Assaf Marom   +5 more
wiley   +1 more source

Descriptive, comparative, and functional anatomy of the facial musculature in cattle (Bos taurus)

The Anatomical Record, EarlyView.
Abstract Facial expressions can provide insight into animal emotions and pain, but no standardized system for assessing the entire facial display in cattle (Bos taurus Linnaeus) exists. The Facial Action Coding System (FACS), originally developed for humans, identifies distinct facial movements based on mimetic muscles.
Maja Söderlind, Bridget Cain, Katrina Ask, Jean‐Francois Valarcher, Elin Hernlund, Pia Haubro Andersen, Marie Rhodin   +6 more
wiley   +1 more source

Mechanical Properties Of Sediment Determine Burrowing Success And Influence Distribution Of Two Lugworm Species [PDF]

, 2017
We apply new perspectives on how organisms burrow by examining the association of in situ variation in sediment mechanical properties with burrowing ability and species distribution of two sympatric lugworms, Abarenicola pacifica and Abarenicola ...
Crane, R. L., Merz, Rachel
core   +3 more sources