Results 151 to 160 of about 19,383 (290)

Aspects of genetic and morphological variation in selected new world land birds [PDF]

open access: yes, 2000
Thesis (M.S.) University of Alaska Fairbanks, 2000The objective of this thesis is to examine variation in certain New World land birds, focusing on morphological difference at the intraspecific level and genetic differences at the intra- and ...
Weicker, Jacqueline Joyce
core  

Beyond Sexual Selection: Natural Selection Related Camouflage and Thermoregulation Shape Sexual Color Dimorphism in Diploderma Lizards

open access: yesIntegrative Zoology, EarlyView.
Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley   +1 more source

Growing and laying performance of two different-plumage color Japanese quail varieties supplemented with corn silk in their diet. [PDF]

open access: yesPoult Sci, 2023
Kirrella AAK   +9 more
europepmc   +1 more source

Visual Satire Under German Censorship: The Card Game Pharo in Johann Heinrich Ramberg's Illustrations and in Contemporary Descriptions

open access: yesJournal for Eighteenth-Century Studies, EarlyView.
Abstract This article examines image–text relations in German illustrations of gambling around 1800, specifically focusing on the card game Pharo and the artist Johann Heinrich Ramberg. It shows Ramberg's technique of reuse and variation as well as the degree of satire in the designs and their accompanying descriptive or fictional texts.
Waltraud Maierhofer
wiley   +1 more source

Nest Survival Models and Genomics Illuminate Hybridisation Attempts, Guiding Culturally Informed Management to Recover a Critically Endangered Seabird

open access: yesAnimal Conservation, EarlyView.
Long‐term monitoring has revealed hybridisation attempts between the Critically Endangered Kuaka Whenua Hou (KWH, Pelecanoides whenuahouensis) and the abundant Kuaka (P. urinatrix). Here we use modelling based on population monitoring data in tandem with genomic data to investigate these attempts and the risk they pose to KWH recovery.
N. J. Forsdick   +4 more
wiley   +1 more source

Breeding rate is associated with pheomelanism in male and with eumelanism in female barn owls [PDF]

open access: yes, 2017
Melanin-based coloration exists in 2 types: black eumelanism and reddish-brown pheomelanism, which both have a strong heritable component. To test whether these 2 types of melanism are associated with alternative adaptations, we carried out a correlative
Altwegg, Res, Roulin, Alexandre
core  

Reframing the Chipped Edge: Combining Materiality, Ontology, and Embodiment to Rethink Stone Tool‐Making and Human Conscious Behavior in the Paleolithic Past

open access: yesAnthropology of Consciousness, EarlyView.
ABSTRACT Combining different theoretical frameworks can lead to new insights into the role of material things in shaping human experience in the Paleolithic period. This paper first presents a historical review of three theoretical approaches in archaeology, anthropology, and the philosophy of mind: Material culture and materiality studies, the ...
Bar Efrati
wiley   +1 more source

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