A. Boom results 42
· Newest (Page 1/2, per page 25)
Author: A. Boom ×Clear All Filters
Search Results
Resident and Migratory Falcons' Breeding Phenology and Productivity Respond Differently to Weather and Climate Change Across the ArcticNARA Subscribed
Climate change is disproportionately warming the Arctic, leading to changes in weather patterns that affect breeding phenology for many Arctic species. Despite extensive research on non‐predatory birds, few studies have examined the impacts of climate change on higher trophic levels, especially those comparing breeding phenology and productivity between migratory and resident species. Our study used long‐term monitoring data f...
Assignment of wintering Barnacle Geese (Branta leucopsis) to breeding populations using genome-wide single-nucleotide polymorphismsNARA Subscribed
Migratory birds often traverse thousands of kilometers, yet some individuals may abandon migration and form sedentary populations—a process termed ‘migratory drop-off’. A key limitation in studying this phenomenon is the inability to distinguish between individuals from different populations, particularly when they share part of their range. We aimed to solve this problem for the Barnacle Goose ( Branta leucopsis ), a species...
Unprecedented Burning in Tropical Peatlands During the 20th Century Compared to the Previous Two MillenniaNARA Subscribed
Tropical peatland wildfire incidence has risen in recent decades, driven by drainage for land use and intensified by severe droughts with global climate change. These disturbances have altered vegetation structure, disrupted ecosystem functioning, and increased carbon emissions, particularly in Southeast Asia. However, the long‐term history and characteristics of wildfires in tropical peatlands remain largely unknown. Here, we...
Migratory Birds Advance Spring Arrival and Egg‐Laying in the Arctic, Mostly by Travelling FasterNARA Subscribed
In the current warming climate, many organisms in seasonal environments advance their timing of reproduction to benefit from resource peaks earlier in spring. For migrants, the potential to advance reproduction may be constrained by their migration strategies, notably their ability to advance arrival at the breeding grounds. Recent studies show various changes in migration strategies, including wintering closer to the breeding...
Peatlands of the central Congo Basin have accumulated carbon over millennia. They currently store some 29 billion tonnes of carbon in peat. However, our understanding of the controls on peat carbon accumulation and loss and the vulnerability of this stored carbon to climate change is in its infancy. Here we present a new model of tropical peatland development, DigiBog_Congo, that we use to simulate peat carbon accumulation and...
Climate change impacts on freshwater ecosystems and freshwater biodiversity show strong spatial variability, highlighting the importance of a global perspective. While previous studies on biodiversity mostly focused on species richness, functional diversity, which is a better predictor of ecosystem functioning, has received much less attention. This study aims to comprehensively assess climate change threats to the functional...
Year-round activity levels reveal diurnal foraging constraints in the annual cycle of migratory and non-migratory barnacle geeseNARA Subscribed
Performing migratory journeys comes with energetic costs, which have to be compensated within the annual cycle. An assessment of how and when such compensation occurs is ideally done by comparing full annual cycles of migratory and non-migratory individuals of the same species, which is rarely achieved. We studied free-living migratory and resident barnacle geese belonging to the same flyway (metapopulation), and investigated...
Barnacle geese Branta leucopsis breeding on Novaya Zemlya: current distribution and population size estimated from tracking dataNARA Subscribed
The Russian breeding population of barnacle geese Branta leucopsis has shown a rapid increase in numbers since 1980, which has coincided with a southwest-wards breeding range expansion within the Russian Arctic. Here barnacle geese also started to occupy coastal and marsh land habitats, in which they were not know to nest on their traditional breeding grounds. While these changes have been well documented by studies and observ...
Tree-ring oxygen isotopes record a decrease in Amazon dry season rainfall over the past 40 yearsNARA Subscribed
Extant climate observations suggest the dry season over large parts of the Amazon Basin has become longer and drier over recent decades. However, such possible intensification of the Amazon dry season and its underlying causes are still a matter of debate. Here we used oxygen isotope ratios in tree rings (δ 18 O TR ) from six floodplain trees from the western Amazon to assess changes in past climate. Our analysis shows that δ...
Changes in functional, phylogenetic and taxonomic diversities of lowland fens under different vegetation and disturbance levelsNARA Subscribed
Multiple measures of plant diversity are vital to understand the response of plant communities to changing environmental conditions in peatlands. We assessed whether functional, phylogenetic and taxonomic diversities of woody and herbaceous fen peatlands in East Anglia, UK varied between plant communities under different management practices (mowing and grazing). We adjusted the weight of phylogenetic distances in a combined f...
TRY plant trait database – enhanced coverage and open accessNARA Subscribed
Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodivers...
Climate warming may affect the optimal timing of reproduction for migratory geese differently in the low and high ArcticNARA Subscribed
Rapid climate warming is driving organisms to advance timing of reproduction with earlier springs, but the rate of advancement shows large variation, even among populations of the same species. In this study, we investigated how the rate of advancement in timing of reproduction with a warming climate varies for barnacle goose ( Branta leucopsis ) populations breeding at different latitudes in the Arctic. We hypothesized that p...