Results 81 to 90 of about 103,701 (215)

Jaw musculature during the dawn of turtle evolution [PDF]

open access: yes, 2018
Using a new approach to study muscle anatomy in vertebrates, the fully differentiated jaw musculature of 42 turtle species was studied and character mappings were performed. Soft tissue arrangements were correlated to the temporal openings (emarginations)
Werneburg, Ingmar
core  

Gender identification using acoustic analysis in birds without external sexual dimorphism [PDF]

open access: yes, 2015
Anna V. Klenova   +3 more
core   +1 more source

Every partridge counts, successful techniques used in the captive conservation breeding programme for wild grey partridge in Ireland [PDF]

open access: yes, 2012
Between 1998 and 2001 the last remaining wild grey partridge (Perdix perdix) population in Ireland faced imminent extinction with an estimated spring population of 4–6 pairs, and an autumn population of 22–24 birds.
Buckley, K.   +5 more
core   +1 more source

Zero Augmentation: A method for fitting zero-modified count models that allows both zero-inflation and zero-deflation [PDF]

open access: yes, 2010
The concept of zero-inflation is now well established, and several software packages exist that fit zero-inflated models. Whilst there is some mention of zero-deflation in the literature, there is very little published evidence of research into zero ...
Wilson, Paul
core  

A temporal and spatial study of invertebrate communities associated with hard-bottom habitats in the South Atlantic Bight [PDF]

open access: yes, 1984
Species composition, biomass, density, and diversity of benthic invertebrates from six bard-bottom areas were evaluated. Seasonal collections using a dredge, trawl, and suction and grab samplers yielded 432, 525, and 845 taxa, respectively.
Hinde, P.   +3 more
core  

Possible steps in the evolutionary development of bird navigation [PDF]

open access: yes
Hypotheses are presented to explain the evolutionary development of navigational ability in migratory birds. Areas of discussion to describe the possible techniques are: (1) sun compass, (2) bicoordinate navigation, (3) star compass, (4) wind cues, (5 ...
Bellrose, F. C.
core   +1 more source

Worldwide Phylogenetic Relationship of Avian Poxviruses [PDF]

open access: yes, 2013
Blanco, JM   +19 more
core   +1 more source

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