312 results on '"Portugal, Steven J."'
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2. A seabird’s eye view: visual fields of some seabirds (Laridae and Procellariidae) from tropical latitudes
3. No evidence for a signal in mammalian basal metabolic rate associated with a fossorial lifestyle
4. Can local ecological knowledge establish conservation baselines for the Critically Endangered Blue‐crowned Laughingthrush?
5. Patterns of Genetic Diversity and Gene Flow Associated With an Aridity Gradient in Populations of Common Mole-rats, Cryptomys hottentotus hottentotus.
6. New insights into morphological adaptation in common mole‐rats (Cryptomys hottentotus hottentotus) along an aridity gradient.
7. Global diversity and adaptations of avian eggshell thickness indices.
8. Binocular field configuration in owls: the role of foraging ecology
9. Binocular vision and foraging in ducks, geese and swans (Anatidae)
10. Metabolic rate does not explain performance on a short-term memory task or personality traits in juvenile chickens ( Gallus gallus domesticus )
11. The coevolutionary biology of brood parasitism : a call for integration
12. Convergent evolution of reduced eggshell conductance in avian brood parasites
13. Speed consensus and the ‘Goldilocks principle’ in flocking birds (Columba livia)
14. Influence of behavioural and morphological group composition on pigeon flocking dynamics
15. Surface texture heterogeneity in maculated bird eggshells
16. The origin and maintenance of metabolic allometry in animals
17. Boldness traits, not dominance, predict exploratory flight range and homing behaviour in homing pigeons
18. Siamese fighting fish
19. Eggshell composition and surface properties of avian brood-parasitic species compared with non-parasitic species
20. Introduction: Moving in a moving medium: new perspectives on flight
21. Does hyperthermia constrain flight duration in a short-distance migrant?
22. Biologically inspired herding of animal groups by robots
23. Bringing a Time–Depth Perspective to Collective Animal Behaviour
24. Associations between Resting, Activity, and Daily Metabolic Rate in Free-Living Endotherms : No Universal Rule in Birds and Mammals
25. Supplementary Material from Surface texture heterogeneity in maculated bird eggshells
26. Supplementary Information 1 from Eggshell composition and surface properties of avian brood-parasitic species compared to non-parasitic species
27. Supplementary Information 1 from Eggshell composition and surface properties of avian brood-parasitic species compared with non-parasitic species
28. When flocking is costly: reduced cluster-flock density over long-duration flight in pigeons
29. Tissue Oxidative Ecology along an Aridity Gradient in a Mammalian Subterranean Species
30. Secretary birds
31. FLOCK STASIS DRIVES FLYING SPEED IN PIGEONS, WHILE ARTIFICIAL MASS ADDITIONS DO NOT
32. Global diversity and adaptations of avian eggshell thickness indices
33. Matching times of leading and following suggest cooperation through direct reciprocity during V-formation flight in ibis
34. First light for avian embryos : eggshell thickness and pigmentation mediate variation in development and UV exposure in wild bird eggs
35. Pigeon leadership hierarchies are not dependent on environmental contexts or individual phenotypes
36. Homing pigeon (Columba livia) dominance hierarchies are stable over time and resistant to perturbation
37. Supplementary material and Model description from Emergence of splits and collective turns in pigeon flocks under predation
38. Avian eggshell pigments are not consistently correlated with colour measurements or egg constituents in two Turdus thrushes
39. Behavioural compensation reduces energy expenditure during migration hyperphagia in a large bird
40. Emergence of splits and collective turns in pigeon flocks under predation
41. Self-organization of collective escape in pigeon flocks
42. Review: an embryo's eye view of avian eggshell pigmentation
43. Eggshell Permeability: A Standard Technique for Determining Interspecific Rates of Water Vapor Conductance
44. Recording Raptor Behavior on the Wing via Accelerometry
45. Respirometry: Anhydrous Drierite Equilibrates with Carbon Dioxide and Increases Washout Times
46. Externally attached biologgers cause compensatory body mass loss in birds
47. Embryo movement is more frequent in avian brood parasites than birds with parental reproductive strategies
48. Overall dynamic body acceleration as an indicator of dominance in Homing Pigeons (Columba livia)
49. Ecological drivers of eggshell wettability in birds
50. How much calcium to shell out? Eggshell calcium carbonate content is greater in birds with thinner shells, larger clutches and longer lifespans
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