Results 61 to 70 of about 1,701,221 (334)

Molt in Birds Inhabiting a Human-Dominated Habitat

Hayati Journal of Biosciences, 2018
Molt is one of the biological processes in the life of birds that requires high energy. Therefore, it usually occurs when food is abundant. However, molt and breeding overlap have been recorded in the tropics.
Yeni Aryati Mulyani, Fransisca Noni Tirtaningtyas, Nanang Khairul Hadi, Lina Kristina Dewi, Aronika Kaban   +4 more
doaj   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

The Breeding Ecology of Homed Puffins Fratercula comiculata in Alaska. [PDF]

, 2001
The Horned Puffin {Fratercula corniculata) is one of three North Pacific puffin species. Horned Puffins almost always nest amongst boulders and in rock crevices.
Harding, Ann Marie Aglionby
core  

The decline of ground nesting birds in Europe: Do we need to manage predation in addition to habitat?

Global Ecology and Conservation
Bird populations are declining globally with losses recorded in many European breeding birds. Habitat management measures have not resulted in widespread reversal of these declines. We analysed national bird population trends from ten European countries (
Barry J. McMahon, Susan Doyle, Francois Mougeot, Beatriz Arroyo   +3 more
doaj   +1 more source

Satellite Telemetry of Blue-Throated Macaws in Barba Azul Nature Reserve (Beni, Bolivia) Reveals Likely Breeding Areas

Diversity, 2021
The Blue-throated Macaw (Ara glaucogularis) is a Critically Endangered species endemic to the Llanos de Moxos ecosystem of Beni, Bolivia. To aid conservation of the northwestern population that utilizes the Barba Azul Nature Reserve during the non ...
Lisa C. Davenport, Tjalle Boorsma, Lucas Carrara, Paulo de Tarso Zuquim Antas, Luciene Faria, Donald J. Brightsmith, Sebastian K. Herzog, Rodrigo W. Soria-Auza, A. Bennett Hennessey   +8 more
doaj   +1 more source

ChicGrasp: Imitation‐Learning‐Based Customized Dual‐Jaw Gripper Control for Manipulation of Delicate, Irregular Bio‐Products

Advanced Robotics Research, EarlyView.
Automated poultry processing lines still rely on humans to lift slippery, easily bruised carcasses onto a shackle conveyor. Deformability, anatomical variance, and hygiene rules make conventional suction and scripted motions unreliable. We present ChicGrasp, an end‐to‐end hardware‐software co‐designed imitation learning framework, to offer a ...
Amirreza Davar, Zhengtong Xu, Siavash Mahmoudi, Pouya Sohrabipour, Chaitanya Pallerla, Yu She, Wan Shou, Philip Glen Crandall, Dongyi Wang   +8 more
wiley   +1 more source

Farmland birds and the field boundary evaluation and grading system in Ireland [PDF]

, 2012
Field boundaries are important habitats for birds within the agricultural landscape. In this study, bird surveys were carried out during the winter and breeding season on nine farms in the east and south-east of Ireland and field boundaries at each ...
McMahon, Barry J., Collier, Marcus, Whelan, John, Kirwan, Laura   +3 more
core   +1 more source

The use of drones to study the breeding productivity of Whooper Swan Cygnus cygnus

The European Zoological Journal, 2023
This research was carried out in north-eastern Poland, where Whooper Swan Cygnus cygnus is a sparse breeder. Whooper Swan is timid and exhibits a tendency to hide in emergent vegetation.
A. Sikora, D. Marchowski
doaj   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Cooperative breeding in birds: the role of ecology [PDF]

Behavioral Ecology, 1999
Theory predicts that cooperative breeding should only occur in species in which certain individuals are constrained from breeding independently by some peculiarity of the species' ecology. Here, we use comparative methods to examine the role of variation in ecology in explaining differences between taxa in the frequency of cooperative breeding.
Arnold, K. E., Owens, I. P. F.
openaire   +4 more sources