Orman ağacı ıslah çalışmalarında, uzun süre gözlemlenen genetik testler ile programları için parametreler tahmin edilmektedir. Söz konusu parametrelerin tahminleri programını etkileyeceğinden kullanılacak doğrusal karma modelin seçimi büyük önem taşımaktadır. Kullanılan modellerde tahmin, genellikle artık (residual) veya kısıtlı maksimum olabilirlik (REML) yöntemi kullanılarak elde edilir. Fark...

Deciding how to establish woodland in forest restoration is not straightforward as different outcomes may be obtained from establishment approaches, each with cost implications and degree of success limitations attached. Planning requires knowledge site conditions, including sites are likely respond under climate change. For objectives production high timber quality it that ground preparation w...

-We evaluated selection of nest sites by male Red-cockaded Woodpeckers (Picoides borealis) in Texas relative to the age of the cavity when only cavities excavated by the woodpeckers were available and when both naturally excavated cavities and artificial cavities were available. We also evaluated nest-cavity selection relative to the ability of naturally excavated cavity trees to produce resin,...

Tree fruit breeding is an inherently long-term process. The average generation time can range from 2 to 20 years depending on the species. While the production of large numbers of progeny favors the appearance of rare but desired recombinants, large tree size limits the number of progeny that can be planted and maintained. Significant genotype x environment interactions require multiple test si...

Forestry, 37150, Kastamonu, Turkey. Corresponding author: [email protected] 2 Assist. Prof. Dr. Hakan Sevik, Kastamonu University, Faculty of Engineering and Architecture, 37150, Kastamonu, Turkey 3 Canan Unal, Forest Tree Seeds and Tree Breeding Research Directorate, Gazi, Ankara, Turkey UDK 630* 181.5 (001) Izvorni znanstveni članci – Original scientific papers Šumarski list, 1–2 (2...

Replacement of the average numerator relationship matrix derived from the pedigree with the realized genomic relationship matrix based on DNA markers might be an attractive strategy in forest tree breeding for predictions of genetic merit. We used genotypes from 3461 single-nucleotide polymorphism loci to estimate genomic relationships for a population of 165 loblolly pine (Pinus taeda L.) indi...

Island species typically exist in pathogen and predator sparse environments before human settlement, and are particularly vulnerable to the impacts of invasive species. In this study, we used the variable circular-plot method to estimate the density of birds in the highlands of Floreana Island, Galápagos Archipelago, where introduced parasites, predators, and habitat degradation are a known thr...

Invasive alien parasites and pathogens are a growing threat to biodiversity worldwide, which can contribute to the extinction of endemic species. On the Galápagos Islands, the invasive parasitic fly Philornis downsi poses a major threat to the endemic avifauna. Here, we investigated the influence of this parasite on the breeding success of two Darwin's finch species, the warbler finch (Certhide...

Background Growing demand for food and fiber, and a rapidly changing climate will require that plant breeders accelerate the improvement of germplasm adapted to new sources of biotic and abiotic stress. In trees, the threat from climate change is more evident and the solutions more challenging than in any other plant species, due to the complexity and cost of breeding programs, and the long bre...

The tree shrew (Tupaia belangeri) is a promising laboratory animal that possesses a closer genetic relationship to primates than to rodents. In addition, advantages such as small size, easy breeding, and rapid reproduction make the tree shrew an ideal subject for the study of human disease. Numerous tree shrew disease models have been generated in biological and medical studies in recent years....