Results 11 to 20 of about 4,758 (197)

A Derived Morphology of the Quadrate May Support a Previously Unrecognized Major Higher-Level Clade of Neoavian Birds. [PDF]

J Morphol
The avian quadrate plays a critical role in cranial kinesis, but few comparative studies exist of its morphological variation across higher‐level taxa. In this study, the occurrence of a markedly concave articular facet of the condylus medialis is surveyed across neornithine birds.
Mayr G.
europepmc   +2 more sources

Rapid Global Deforestation Leaves Forest-Dependent Raptors With Half of Their Suitable Habitat Remaining. [PDF]

Glob Chang Biol
We analyzed high‐resolution global data on forest change between 2001 and 2023 within the ranges of 369 forest‐dependent raptor species. On average, these species have lost 10% of forest within their ranges since 2001. Seventy‐seven species had already lost at least 15% of additional forest cover within their ranges in the latter half of the 20th ...
O'Bryan CJ, Xie Z, Li H, Buechley ER, Bader MK, Allan JR, Buij R.   +6 more
europepmc   +2 more sources

Nidificación del halcón serlvático de collar (Micrastur semitorquatus) en un complejo arqueológico en el estado de Campeche, México

Acta Zoológica Lilloana, 2022
El halcón selvático de collar (Micrastur semitorquatus) es el miembro más grande de su género. Se encuentra en una amplia variedad de hábitats desde el centro de México hasta el sur de Brasil. Registramos un nido de M. semitorquatus dentro de una de las
Alvaro Monter-Pozos, Julio C. Hernández-Hernández   +1 more
doaj   +1 more source

BIRDS OF CONSERVATION CONCERN AT AL-NAJAF DESERT, SOUTHERN DESERT OF IRAQ

Bulletin of the Iraq Natural History Museum, 2022
One eighth of the bird species in the world is considered globally threatened;the avifauna of Iraq comprises 409 species and is considered as the major indicator of the health of Iraq’s biological resources.
Hayder M. Al-Rammahi, Mohammad K. Mohammad   +1 more
doaj   +1 more source

Frugivory in Raptors: New Observations from Australia and a Global Review

Birds, 2021
The diets of raptors are some of the best studied and well-known of all bird groups. Raptors are typically carnivores, hunting and feeding on vertebrates and, for some species, invertebrates. Here, we described instances of the Black Kite (Milvus migrans)
James A. Fitzsimons, Jack Leighton
doaj   +1 more source

Bactris gasipaes fruits consumption by Caracara plancus in the Municipality of Brasiléia, southwestern Amazon, Brazil

Revista Peruana de Biología, 2019
The Southern Caracara (Caracara plancus) is a South American falconid that over the years has been colonizing open areas of the Southwestern Amazon. Regarding food habits, it is considered an opportunistic/generalist species.
Edson Guilherme
doaj   +1 more source

Histomorphometrical study of the tongue epithelium of the peregrine falcon (Falco peregrinus)

Brazilian Journal of Biology, 2021
The aim of this study is to examine the dorsal lingual epithelium of the peregrine falcon (Falco peregrinus) of the family Falconidae. The tongue in its dorsal, lateral and ventral surfaces is covered with a non-keratinized multilayered stratified ...
F. A. Al-Nefeiy
doaj   +1 more source

Functional and Phylogenetic Structure of Forest Bird Assemblages Along an Afrotropical Elevational Gradient. [PDF]

Ecol Evol
On Mt. Cameroon, functional richness and taxonomic diversity decreased with elevation, while functional nearest neighbor distance, functional evenness, and mean nearest taxon distance showed positive trends. Traits related to resource use indicated that higher‐elevation species were functionally less similar than expected by chance, supporting ...
Pernice R, Sedláček O, Albrecht T, Tomášek O, Kauzál O, Kauzálová T, Motombi FN, Ewome FL, Ferenc M, Chmel K, Mlíkovský J, Riegert J, Kamga SM, Hořák D.   +13 more
europepmc   +2 more sources

Multidirectional chromosome painting substantiates the occurrence of extensive genomic reshuffling within Accipitriformes. [PDF]

, 2015
BACKGROUND: Previous cross-species painting studies with probes from chicken (Gallus gallus) chromosomes 1-10 and a paint pool of nineteen microchromosomes have revealed that the drastic karyotypic reorganization in Accipitridae is due to extensive ...
Beiyuan Fu, Bertrand Bed’Hom, Fengtang Yang, Gauthier Dobigny, Jinghuan Wang, Kai He, Malcolm A. Ferguson-Smith, Patricia C. M. O’Brien, Vitaly Volobouev, Weiting Su, Wenhui Nie   +10 more
core   +4 more sources

The shapes of bird beaks are highly controlled by nondietary factors [PDF]

, 2016
Bird beaks are textbook examples of ecological adaptation to diet, but their shapes are also controlled by genetic and developmental histories. To test the effects of these factors on the avian craniofacial skeleton, we conducted morphometric analyses on
Beecher, Cardini, Emily J. Rayfield, Fritz, Guangdi, Jen A. Bright, Jesús Marugán-Lobón, Samuel N. Cobb, Villmoare, Zusi, Zusi   +10 more
core   +5 more sources