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Publications related to birds (10,000)
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Article
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Carl Bergmann was an astute naturalist and physiologist. His ideas about animal size and shape were important advances in the pre-Darwinian nineteenth century. Bergmann’s rule claims that that in cold climates, large body mass increases the ratio of volume-to-surface area and provides for maximum metabolic heat retention in mammals and birds. Conve...
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Background Darwin and others proposed that a species’ geographic range size positively influences speciation likelihood, with the relationship potentially dependent on the mode of speciation and other contributing factors, including geographic setting and species traits. Several alternative proposals for the influence of range size on speciation ra...
Article
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Seventy-five fecal, water and soil samples were collected from watering sites of wild migratory species in district Haripur, Khyberpakhtunkhwa, Pakistan. The samples included fecal, water and soil samples of the associated environment of wild birds for detection of multi-drug resistant (MDR) Shigella flexneri. The isolation strains were characteriz...
Article
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Aim: We investigated taxonomic and functional beta diversity of bird communities inhabiting Mediterranean olive groves subject to either intensive or extensive management of the ground cover and located in landscapes with different degrees of complexity. Location: Andalusia, southern Spain. Methods: We partitioned taxonomic and functional beta dive...
Conference Paper
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The field of Earth observation is dealing with increasingly large, multimodal data sets. An important processing step consists of providing these data sets with labels. However, standard label propagation algorithms cannot be applied to multimodal remote sensing data for two reasons. First, multimodal data is heterogeneous while classic label propa...
Article
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Species richness is a widely used proxy for patterns of biodiversity variation in metacommunities. However, deeper analyses require additional metrics, such as the occupancy-frequency distributions (SOFD) of different local communities. The SOFD patterns indicate the number of shared species between study sites; therefore, they can provide new insi...
Article
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Climate change and urbanization are two of the most important current global change drivers. However, most studies have focused on these issues in isolation, limiting our ability to predict the impacts of the two in tandem. During hot conditions, many birds reduce foraging activity to minimise heat gain, which can result in costly trade-offs, affec...
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In ecosystem, the most critical issue is the extinction and persistence of population. For this reason, various deterministic and stochastic models have been studied in the past decades. However, the effect of transitions which is caused by either internal or external environmental noise has given less attention. In this work, we introduce a robust...
Article
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Calls for urgent action to conserve biodiversity under global change are increasing, and conservation of migratory species in this context poses special challenges. In the last two decades the Convention on the Conservation of Migratory Species of Wild Animals (CMS) has provided a framework for several subsidiary instruments including action plans...
Article
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Bird wings are frequently modelled in the aerodynamics literature under the assumption that they are static aerofoils. Air flows over real bird wings can violate this assumption, both because of the topology of the wing and the fact that real wings typically undergo flapping and twisting motions during flight. There are many computational and numer...
Article
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Beach-nesting birds (plovers; Aves; Charadridae) are impacted by many natural and human-induced threats (e.g., people trampling, dogs, and natural predators). In this regard, the use of anti-predator cages on their nests is effective in order to mitigate some of these pressures (i.e., predation). To evaluate the efficacy of anti-predator cages and...
Article
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Numerical cognition is ubiquitous in the animal kingdom. Domestic chicks are a widely used developmental model for studying numerical cognition. Soon after hatching, chicks can perform sophisticated numerical tasks. Nevertheless, the neural basis of their numerical abilities has remained unknown. Here, we describe number neurons in the caudal nidop...
Article
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This study was conducted in Zalingei area in the year of 2021, to identify the current status of the Black Crown-crane. The statistical analytical method was used. The results showed that 97.8% of the respondents had seen a Crowne crane and 12.2% of them were not see the Crowne crane, while 2.2% had neither seen nor known the Crowne crane. 70.4% of...
Article
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Data on the breeding performance and territorial behaviour of two common tundra skuas were collected 1996–2000 (with some lacunae) in the vicinities of Medusa Bay (73°21′ N, 80°32′ E), northwestern Taimyr Peninsula. The spatial distribution of nests or centres of breeding territories in both skua species appear to be grouped (clustered). This means...
Article
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The gut microbiota is viewed as the “second genome” of animals, sharing intricate relationships with their respective hosts. Because the gut microbial community and its diversity are affected by many intrinsic and extrinsic factors, studying intestinal microbes has become an important research topic. However, publications are dominated by studies o...
Article
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This essay explores the theorization of moral valuation outlined in Stefan Bargheer’s Moral Entanglements: Conserving Birds in Britain and Germany when extended to the climate crisis. It considers, first, how ‘nature’ is valued when it confronts people and societies as a source of threat, rather than of recreation or resources. Second, the essay cr...
Article
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The Subarctic and Arctic seas of the Northern Hemisphere contain productive ecosystems teeming with fish, shellfish, birds, sea mammals and seaweeds. These waters support coastal communities and productive industrial fisheries today, but things are changing. As climate warms, taxa are moving north, reassembling in new ecological configurations and...
Article
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Species Distribution Models (SDMs) are essential tools for predicting climate change impact on species' distributions and are commonly employed as an informative tool on which to base management and conservation actions. Focusing only on a part of the entire distribution of a species for fitting SDMs is a common approach. Yet, geographically restri...
Article
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The aim of present study was to understand the dietary effect of hydroponic wheat sprout (WS) on the growth performance, carcass characteristics and lipid profiles of broiler chickens. Two independent feeding trials were conducted using Cobb 500 broiler DOC for the period of 0 to 32 days. In the first trail, 264 DOC were allocated into 4 treatments...
Article
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Determining the dynamics of where and when individuals occur is necessary to understand population declines and identify critical areas for populations of conservation concern. However, there are few examples where a spatially and temporally explicit model has been used to evaluate the migratory dynamics of a bird population across its entire annua...
Article
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Reversing large-scale habitat degradation and deforestation goes beyond what can be achieved by site-level ecological restoration and a landscape ecology perspective is fundamental. Here we assess the relative importance of tree cover and its configuration on forest-dependent birds and late-successional tree seedlings in restoration sites in southe...
Conference Paper
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494 bird species which are documented number of 456 species have been recorded so far in Turkey, which is located at the intersection of three phytogeographical regions. 41 numbers of these species are in the category of diurnal raptor species. Three species (Greater Spotted Eagle, Imperial Eagle and Sooty Falcon) as vulnerable (VU) and four specie...
Article
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An increasing number of marine animals are equipped with biologgers, to study their physiology, behaviour and ecology, often for conservation purposes. To minimise the impacts of biologgers on the animals’ welfare, the Refinement principle from the Three Rs framework ( Replacement , Reduction , Refinement ) urges to continuously test and evaluate n...
Article
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The aim of present study was to understand the dietary effect of hydroponic wheat sprout (WS) on the growth performance, carcass characteristics and lipid profiles of broiler chickens. Two independent feeding trials were conducted using Cobb 500 broiler DOC for the period of 0 to 32 days. In the first trail, 264 DOC were allocated into 4 treatments...
Chapter
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The importance of Malta’s valleys for birds has been documented in several historical works. For example, in 1647, Gian Frangisk Abela described Wied ta’ Dejr is-Saff, Girgenti, as being ideal for catching beccafichi (Garden Warblers), tortore (Turtle Doves) and tordi (thrushes). The long association between birds and Malta’s valleys is also borne...
Conference Paper
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This experiment was conducted in the poultry field of the Department of Animal Production College of Agriculture Al-Qasim Green University for " the period 1/10 /2021 to 4/11/2021 The study aimed to add different levels of Chenopodium quinoa seed " powder to the diet and vitamin C to the drinking water to know the best levels of quinoa seed powder...
Article
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bA bird statuettes, figurines, and amulets are funerary objects that is commonly found in Egyptian museums. bA-figurines started to be common among funerary objects found in ancient Egyptian tombs since the New Kingdom. Unlike bA statuettes, bA figurines were intended to be attached to a coffin or a stela in many cases. Their existence increased in...
Preprint
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The taxonomic and functional diversity of bird assemblages is determined by diverse ecological and evolutionary processes. As species establish, biotic and abiotic conditions change, shaping the processes of succession or colonization. Sometimes these processes are altered by catastrophic events that impact species in different ways, functioning as...
Article
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Terrestrial and aquatic birds congregate in and around the open sewage lagoon (27.44ºN, 89.65ºE) located south of Thimphu city (2,265 m asl; c.10 ha), including a large stretch of the Wangchhu River that flows adjacent to the lagoon. Sewage lagoon supports a variety of bird species (Zimmerling 2006; Tere & Parasharya 2013) due to the easy availabil...
Article
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Acoustic communication serves a crucial role in the social interactions of vocal animals. Duetting—the coordinated singing among pairs of animals—has evolved independently multiple times across diverse taxonomic groups including insects, frogs, birds, and mammals. A crucial first step for understanding how information is encoded and transferred in...
Article
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Respiratory systems of birds may be parasitized by rhinonyssid and ereynetid mites, which are commonly found in their nasal cavities. Levels of infection caused by mites in relation to maturity and gender of birds have been poorly investigated. Although Columba livia is the host of both Tinaminyssus and Trispeleognathus species worldwide, there are...
Article
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Animal collective motion is a natural phenomenon readily observable in various taxa. Although theoretical models can predict the macroscopic pattern of group movements based on the relative spatial position of group members, it is poorly understood how group members exchange directional information, which enables the spatial coordination between in...
Article
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Infrared small target detection has always been a difficult problem in the field of object detection. The main reason affecting the accuracy is that the small infrared target has fewer pixels and weaker features. The current optimization methods for the small target are mainly based on multi-scale feature fusion or super-resolution enhancement. Whe...
Article
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When we imaginatively picture what might happen, we may take what we imagine to be either realistic or fantastic. A wine glass falling to the floor and shattering is realistic. A wine glass falling and morphing into a bird and flying away is fantastic. What does the distinction consist in? Two important necessary conditions are here defined. The fi...
Article
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Coronavirus is a fatal disease that affects mammals and birds. Usually, this virus spreads in humans through aerial precipitation of any fluid secreted from the infected entity's body part. This type of virus is fatal than other unpremeditated viruses. Meanwhile, another class of coronavirus was developed in December 2019, named Novel Coronavirus (...
Article
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Chaotic dynamics are thought to be rare in natural populations but this may be due to methodological and data limitations, rather than the inherent stability of ecosystems. Following extensive simulation testing, we applied multiple chaos detection methods to a global database of 172 population time series and found evidence for chaos in >30%. In c...
Article
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Alien invasive plant species are a major problem globally, threatening ecosystem functioning and biodiversity. Native bird species facilitate their spread through mutualistic relationships. Studies of seed dispersal of alien invasive plants are important for effective management. In the present study, we investigated the role of native bird species...
Article
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Climate and land-use changes are expected to negatively affect many species and ecological processes, leading to biodiversity loss. However, some species can adapt to these changes. Wide-ranging species are expected to be less impacted by such changes, but they can occur in different domains with contrasting environmental conditions , resulting in...
Article
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The relationships between avian brood parasites and their hosts are widely recognised as model systems for studying coevolution. However, while most brood parasites are known to parasitise multiple species of host and hosts are often subject to parasitism by multiple brood parasite species, the examination of multispecies interactions remains rare....
Article
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Species with similar ecological characters often compete with each other; however, a species may also facilitate the survival or reproduction of another ecologically similar species, although such interaction is rarely documented in birds. Here, we reported a facilitative species interaction between Asian house martins (Delichon dasypus) and russet...
Article
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It is fascinating that the amnion and serosa/chorion, two extraembryonic (EE) tissues that are characteristic of the amniote vertebrates (mammals, birds, and reptiles) have also independently evolved in insects. In this review, we offer the first detailed, macroevolutionary comparison of EE development and tissue biology across these animal groups....
Article
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Using low‐coverage whole‐genome sequencing, analysis of vocalizations, and inferences from natural history, we document a first‐generation hybrid between a rose‐breasted grosbeak (Pheucticus ludovicianus) and a scarlet tanager (Piranga olivacea). These two species occur sympatrically throughout much of eastern North America, although were not previ...
Article
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The domestic cat (Felis catus) is one of the most abundant predators and a serious threat to many wildlife species. While a large body of literature explores the number and diversity of individuals depredated by pet cats, the drivers of predation have been investigated much less. Although the environment of the cat, the owner behavior, and the intr...
Article
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Egg rejection is a crucial defence strategy against brood parasitism that requires the host to correctly recognise the foreign egg. Rejection behaviour has, thus, evolved in many hosts, facilitated by the visual differences between the parasitic and host eggs, and driving hosts to rely on colour and pattern cues. On the other hand, the need to reco...
Article
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Nature’s contribution to people (i.e. ecosystem services) is becoming integral to conservation science and policy, yet our knowledge is restricted to only a few services and taxa. Vultures (family: Accipitridae and Cathartidae), most of which are threatened with extinction, have been touted for delivering regulation and maintenance services via the...
Article
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The Birds Directive (2009/147/EC) states that migratory game birds are not hunted “during their return to their rearing grounds”. It follows that for each huntable species, Member States shall assess the 10-day period (TDP) in which the pre-nuptial migration starts. For birds wintering in Europe, the onset of northward movements cannot be easily de...
Article
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Wind has a significant yet complex effect on bird migration speed. With prevailing south wind, overall migration is generally faster in spring than in autumn. However, studies on the difference in airspeed between seasons have shown contrasting results so far, in part due to their limited geographical or temporal coverage. Using the first full-year...
Article
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Understanding bird migration strategies is crucial for identifying the habitat of birds. Recently, GPS tracking has been utilized to identify bird migration routes. The Chinese egret Egretta eulophotes is a migratory bird distributed in East Asia; most populations breed on uninhabited islands off the west coast of the Korean Peninsula. Location tra...
Article
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The sphenoid bone is an unpaired bone that contributes to the formation of the skull base. Despite the enormous progress in transnasal endoscopic visualisation, imaging techniques remain the cornerstones to characterise any pathological condition arising in this area. In the present review, we offer a bird’s-eye view of the developmental, inflammat...
Article
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Context Species distribution modeling (SDM) is an integral tool for conservation, biogeography, and climate change biology. However, practioners have to choose from increasingly numerous SDM algorithms performing well under different conditions, including clade and resolution. Objectives To identify the most suitable SDM algorithms for trees, bird...
Article
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Detecting global patterns in the environment is essential to object perception and recognition. Consistent with this, pigeons have been shown to readily detect and locate geometrically arranged, structured targets embedded in randomized backgrounds. Here we show for the first time that pigeons can detect and localize trial-unique targets derived so...
Article
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Background Avian haemosporidia infect both domestic and wild birds, causing anemia, acute tissue degeneration, and depopulation in wild birds. Poultry and wild birds have been reported as common reservoirs of haemosporidia, but limited information is available for red junglefowl (Gallus gallus) in China. The present study investigated the prevalenc...
Article
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This experiment aimed to evaluate the effect of cricket meal substituted soybean meal in the diet of white-eared Junglefowl (Gallus gallus) on feed intake and weight gain. The experiment was arranged in a completely randomized design with 3 treatments and 4 replicates (4 white-eared Junglefowl per replication). The treatments consisted of control:...
Article
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Community-level evaluations of space use patterns are critical to understand how species separate themselves across habitats and the extent of overlap (complementarity vs. redundancy) between species. Differential space use patterns have cascading effects on community assembly and ecosystem function and can alter the robustness of communities to pe...
Article
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The loss of open habitats in Europe has led to severe declines in birds associated with these habitats. However, certain ecological disturbances reverse the trend towards afforestation and create appropriate conditions for open-habitat species. Yet, open-habitat bird occupancy dynamics after disturbance depend on a complex combination of as-yet poo...
Article
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Common myna (Acridotheres tristis) is a passerine bird native to south-east Asia, established as an alien in many parts of the world including South Africa, where it is invasive. Common mynas are synanthropic birds with a strong preference for urban areas that usually do not expand into natural areas. However, as we document here, since the first r...