Results 41 to 50 of about 4,485 (147)
The island syndrome in plants on New Zealand's outlying islands: a review
ABSTRACT The island syndrome is defined as a suite of predictable and consistent differences between island and mainland organisms. In seed plants, much of what we know about the island syndrome comes from work in the Southwest Pacific, which is comprised of the three main islands of New Zealand and ten surrounding archipelagos.
Riccardo Ciarle, Kevin C. Burns
wiley +1 more source
ABSTRACT International research on disturbed landscapes has shown that active erosion of soil‐free bare ground can maintain distinctive local geological features and biodiversity by preventing incursion of a robust vegetation cover. In this study, we have tested this approach by removing exotic vegetation and associated proto‐soil that had encroached ...
Cathy Rufaut, Dhana Pillai, Dave Craw
wiley +1 more source
Broad-scale recombination pattern in the primitive bird Rhea americana (Ratites, Palaeognathae). [PDF]
Birds have genomic and chromosomal features that make them an attractive group to analyze the evolution of recombination rate and the distribution of crossing over.
Lucía Del Priore, María Inés Pigozzi
doaj +1 more source
Changes in the Air Cell Volume of Artificially Incubated Ostrich Eggs. [PDF]
A total of 2160 images of candled, incubated ostrich eggs were digitized to determine the percentage of egg volume occupied by the air cell at different stages of incubation. The air cell on average occupied 2.5% of the volume of fresh eggs.
Brand, Z. +3 more
core +3 more sources
Avian Influenza annual report 2024
Abstract This report summarises the outcomes of avian influenza (AI) surveillance activities conducted in 2024 in the context of the Avian Influenza Data Collection (AIDC), the One Health (OH) initiatives of the EU4Health Programme (EU4H, 2022 co‐funded grant agreements on emerging and re‐emerging zoonotic pathogens) and the SENTINEL project ...
European Food Safety Authority (EFSA) +8 more
wiley +1 more source
Parasite Fauna of Ostriches, Emus and Rheas
In most parts of the world ratite farming (i.e. farming of ostriches, emus and rheas) is a new fi eld of livestock production. These birds are livestock with broad utilisation of their products.
Nemejc Karel, Lukesova Daniela
doaj +1 more source
What's in a name? The use of birds in Aotearoa New Zealand business names
Abstract The use of animal symbolism or names is a common practice in advertising and branding. Businesses use animals to project attributes of their brand and thus contribute to public familiarity with the species. In New Zealand, birds are arguably the most prominent animals in national conservation priorities and citizen science activities.
Jan‐Hendrik Dudenhöffer +10 more
wiley +1 more source
Seasonal changes in plasma levels of sex hormones in the greater Rhea (Rhea americana), a South American Ratite with a complex mating system. [PDF]
Seasonal rhythm in sex hormones has been extensively studied in birds, as well as its relationship with the type of mating system. The Greater Rhea (Rhea americana), a South American ratite species, reproduces seasonally and has a complex mating system ...
Diego J Valdez +6 more
doaj +1 more source
A phylogeny of the tinamous (Aves: Palaeognathiformes) based on integumentary characters [PDF]
A cladistic analysis of the tinamous, including the 47 currently recognized species and some distinct subspecies, was conducted based on 80 integumentary characters from adult and natal plumage, ramphoteca (corneum sheath of bill), and podoteca (horny ...
Bertelli, Sara Beatriz +2 more
core +1 more source
Reduced Adult Neurogenesis in Humans Results From a Tradeoff Rather Than Direct Negative Selection
Embryonic radial glia (RG) generate neurons, glial cells, and later adult neural stem cells, which sustain adult neurogenesis (top, left to right). Human‐specific genetic modifications (blue arrow), selected to boost early RG neurogenic activity, may lead to premature RG exhaustion and reduced adult neurogenesis in the human brain (bottom).
David Morizet, Laure Bally‐Cuif
wiley +1 more source

