Results 71 to 80 of about 323,005 (266)
The Anatomical Record, EarlyView.Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli +6 more
wiley +1 more source
Large‐scale patterns of green turtle trophic ecology in the eastern Pacific Ocean
Ecosphere, 2021 Trophic position and niche width are fundamental components of a species’ ecology, reflecting resource use, and influencing key demographic parameters such as somatic growth, maturation, and survival.
Jeffrey A. Seminoff +20 more
doaj +1 more source
Cross-species overlap in isotopic niche pre- and post-bloom.
, 2014 Isotopic niche overlap defined as an area common for the two populations in relation to the total isotopic space occupied by these populations (proportion; left y-axis) and total community niche (arbitrary units; right y-axis) calculated using pre-bloom ...
Elena Gorokhova (178084) +2 more
core +1 more source
The Anatomical Record, EarlyView.Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison +9 more
wiley +1 more source
Perspectives in Ecology and ConservationIn naturally flowing waters, communities are expected to increase their taxonomic and functional diversity as well as increase the complexity of food web architecture along the longitudinal gradient from headwaters to mouth.
Anahí López-Rodríguez +9 more
doaj +1 more source
The trophic niche of Mesoclemmys vanderhaegei (Testudines: Chelidae): evidence from stable isotopes
Zoologia (Curitiba), 2017 Ecological niche is the multidimensional space comprising the resources used by an organism. Intraspecific variation in resource exploitation is common in reptile populations to maximize coexistence of individuals.
Thiago S. Marques +6 more
doaj +1 more source
Stable isotope ecology and interspecific dietary overlap among dolphins in the Northeast Atlantic
Frontiers in Marine Science, 2023 Dolphins are mobile apex marine predators. Over the past three decades, warm-water adapted dolphin species (short-beaked common and striped) have expanded their ranges northward and become increasingly abundant in British waters.
Tessa Plint +10 more
doaj +1 more source
Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]
, 2010 Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena +3 more
core +1 more source
Isotopic niche partitioning between two apex predators over time [PDF]
Journal of Animal Ecology, 2017 Summary Stable isotope analyses have become an important tool in reconstructing diets, analysing resource use patterns, elucidating trophic relations among predators and understanding the structure of food webs. Here, we use stable carbon and nitrogen isotope ratios in bone collagen to reconstruct and compare the isotopic niches of adult South ...
Massimiliano Drago +8 more
openaire +4 more sources
The Anatomical Record, EarlyView.Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri +8 more
wiley +1 more source