Results 71 to 80 of about 44,579 (279)
Journal of Animal Ecology, EarlyView.We provide a framework for extending commonly used integrated population models to a metapopulation framework for testing novel ecological hypotheses about how changing environmental conditions within and among subpopulations drive changes in animal abundance.
Alexander R. Schindler +5 more
wiley +1 more source
RELAXING SELECTIVE PRESSURES ON DEVELOPMENTALLY COMPLEX INTEGUMENTARY STRUCTURES: FEATHER VANE SYMMETRY EVOLVES IN ADDITION TO BODY MASS AND WING LENGTH AFTER FLIGHT LOSS IN RECENT BIRDS [PDF]
, 2023 Evan T. Saitta +3 more
openalex +1 more source
Journal of the Royal Anthropological Institute, EarlyView.In recent decades, solid waste has proliferated worldwide, becoming a pressing global issue. This article explores the role of Indigenous people dwelling within and upon emerging waste scenarios, with a specific focus on involved forms of sociality and ontological contestation. Drawing on the case of a municipal landfill sited on a Guarani community in
Vanesa Martín Galán
wiley +1 more source
Energy efficient engine high-pressure turbine detailed design report [PDF]
The energy efficient engine high-pressure turbine is a single stage system based on technology advancements in the areas of aerodynamics, structures and materials to achieve high performance, low operating economics and durability commensurate with ...
Howe, D. C. +2 more
core +1 more source
Cambios estacionales en los ensambles de aves en un ecotono bosque-estepa del norte de Patagonia [PDF]
, 2018 Estudiamos las variaciones estacionales en una comunidad de aves que habitan el ecotono bosque-estepa del norte de Patagonia. Analizamos los cambios en la riqueza de especies, la composición de especies y la abundancia total, y a nivel de las especies ...
Cueto, Víctor +1 more
core
A PRIMER ON SUMMARIZING MOLT DATA FOR FLIGHT FEATHERS [PDF]
The Condor, 2008 Abstract Once established with reliability, the rules of flight feather replacement become an important component of comparative life-history studies. Here I illustrate the form of tables that should be used to describe the pattern and intensity of flight feather molt.
openaire +1 more source
The predatory behavior of ants: an impressive panoply of morphological adaptations
Insect Science, EarlyView.This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean +6 more
wiley +1 more source
Flap-lag-torsion aeroelastic stability of a circulation control rotor in forward flight [PDF]
The aeroelastic stability of a circulation control rotor blade undergoing three degrees of motion (flap, lag, and torsion) is investigated in forward flight.
Chopra, Inderjit, Hong, Chang-Ho
core +1 more source
An economical vent cover [PDF]
, 1972 Inexpensive formed-plastic vent cover has been developed that allows controlled purge of vent systems and also provides blowout protection. Cover can also be used in relief mode to allow normal system relief flows without disengaging from vent system ...
Lee, A. C., Mcdonald, M. D.
core +1 more source
Integrative Zoology, EarlyView.In this study, we systematically analyzed the utilization patterns of Chinese pangolin burrows by sympatric species in Guangdong Province, China, including differences in species composition using burrow mounds and burrow tunnels. We found that repeated visits to burrows by Chinese pangolin promoted the use of burrows by sympatric species, suggesting ...
Song Sun +9 more
wiley +1 more source