Results 51 to 60 of about 74,533 (314)
HeliyonIn this era of climate change, some biological conservationists' concerns are based on seasonal studies that highlight how wild birds' physiological fitness are interconnected with the immediate environment to avoid population decline.
Felix A. Andong +4 more
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Species composition and number of breeding birds in urban parks in Novi Sad [PDF]
Zbornik Matice Srpske za Prirodne Nauke, 2010 Numbers of breeding pairs of breeding birds and breeding density are established by territory mapping in Limanski (12.9 ha), Futoški (8.26 ha), and Dunavski (3.9 ha) Parks in Novi Sad from early March to late June 2007.
Tucakov Marko J.
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Advanced Robotics Research, EarlyView.Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings +6 more
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Global Ecology and ConservationBird 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 +3 more
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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
Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution
Advanced Science, EarlyView.Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley +1 more source
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 +8 more
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The decline of farmland birds in Sweden [PDF]
, 2006 Many farmland bird species have declined rapidly throughout Europe during the last 30 years and studies, mainly from the UK, suggest that these declines have been caused by agricultural intensification.
Wretenberg, Johan
core
Geolocators reveal migration and pre-breeding behaviour of the critically endangered Balearic Shearwater Puffinus mauretanicus [PDF]
, 2012 Using combined miniature archival light and salt-water immersion loggers, we characterise the year-round individual at-sea movements of Europe’s only critically endangered seabird, the Balearic shearwater Puffinus mauretanicus, for the first time ...
Meier, R +40 more
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Advanced Science, EarlyView.ABSTRACT The muscle capsule of Trichinella is a critical structure that impedes immune attacks and drug penetration, yet the molecular mechanisms underlying its formation remain poorly understood. Using a high‐quality super‐pangenome comprising 12 Trichinella species, we compared extensive genomic variations between encapsulating and non‐encapsulating ...
Qingbo Lv +8 more
wiley +1 more source