Results 81 to 90 of about 169,832 (303)
Divergent functional traits in three sympatric Arctic charr Salvelinus alpinus morphs are not coupled with the age of the lineage divergence [PDF]
, 2016 Three genetically discrete morphs of Arctic charr in Loch Rannoch, Scotland originated from a recent divergence within the lake (in situ) (piscivore and benthivore morphs) and from secondary contact of two older lineages (ex situ; a planktivore–piscivore/
Adams, Colin +4 more
core +2 more sources
Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint
The Anatomical Record, EarlyView.Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler +8 more
wiley +1 more source
Adélie penguin foraging location predicted by tidal regime switching. [PDF]
PLoS ONE, 2013 Penguin foraging and breeding success depend on broad-scale environmental and local-scale hydrographic features of their habitat. We investigated the effect of local tidal currents on a population of Adélie penguins on Humble Is., Antarctica.
Matthew J Oliver +6 more
doaj +1 more source
The large carpenter bee Xylocopa augusti (Hymenoptera: Apidae): new record for Chile [PDF]
, 2013 The large carpenter bee Xylocopa (Neoxylocopa) augusti Lepeletier de Saint Fargeau, 1841, is here recorded for the first time in Chile. This new record increases to four the number of carpenter bees known for the country.
Allendes, Juan L. +2 more
core +4 more sources
The Anatomical Record, EarlyView.Analysis of cranial endocast data of 181 extant and 41 fossil species from Euarchontoglires shows that there was a reduction in olfactory bulb size in Crown Primates, but that there were also subsequent reductions in various other primate clades (Anthropoidea, Catarrhini, Platyrrhini, crown Cercopithecoidea, Hominoidea).
Madlen Maryanna Lang +6 more
wiley +1 more source
Adaptive collective foraging in groups with conflicting nutritional needs [PDF]
Royal Society Open Science, 2016 Collective foraging, based on positive feedback and quorum responses, is believed to improve the foraging efficiency of animals. Nutritional models suggest that social information transfer increases the ability of foragers with closely aligned ...
Alistair M. Senior +5 more
doaj +1 more source
The movement of a forager: Strategies for the efficient use of resources [PDF]
, 2016 We study a simple model of a foraging animal that modifies the substrate on which it moves. This substrate provides its only resource, and the forager manage it by taking a limited portion at each visited site.
Abramson, Guillermo +2 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo +4 more
wiley +1 more source
Fine‐scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic
Ecology and Evolution, 2021 Habitat selection and spatial usage are important components of animal behavior influencing fitness and population dynamic. Understanding the animal–habitat relationship is crucial in ecology, particularly in developing strategies for wildlife management
Mathilde Huon +5 more
doaj +1 more source
On the Origin of Risk Sensitivity: the Energy Budget Rule Revisited
, 2015 The risk-sensitive foraging theory formulated in terms of the (daily) energy budget rule has been influential in behavioural ecology as well as other disciplines.
Lim, Ik Soo +2 more
core +1 more source