KELLY MICHELE JERSTAD, MD

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This research studied how climate change and other biological factors affect the survival and reproduction of different species, including trees and primates. The findings revealed that species with shorter lifespans are more affected by multiple climate factors, which can make their populations decline faster. Interestingly, considering how the number of individuals in a population impacts survival can help lessen the negative effects of climate change. Who this helps: This helps conservationists and wildlife managers in protecting species vulnerable to climate change.

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This study looked at the mating habits of white-throated dippers over 41 years, analyzing nearly 2,900 breeding events. Researchers found that about 7% of breeding events involved males with multiple partners, and this rate remained stable over time. Interestingly, polygynous males were not found in better quality territories than their monogamous peers, but they tended to be older and a higher proportion of them returned to polygynous arrangements. Who this helps: This research benefits ornithologists and conservationists studying bird behavior and mating strategies.

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This study looked at how changing conditions in nature affect the timing of when birds and mammals breed. Researchers analyzed data from 39 populations of 21 animal species and found that the best breeding times vary each year. While these fluctuations impact how strongly certain traits are favored, they don’t always change the direction of selection. This research helps us understand how animals adapt to their environments, which is important for conservation and managing wildlife populations. Who this helps: This helps conservationists and wildlife managers.

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This study looked at how changes in river conditions affect when white-throated dippers, a type of bird, breed. The researchers found that these birds started breeding earlier when river water levels were high during winter, with breeding times shifting significantly over the years. Specifically, dippers bred 20 days earlier on average in territories with high winter river flow compared to those with lower flow levels, indicating that climate change is affecting their breeding patterns. Who this helps: This information helps conservationists and wildlife managers better understand and protect bird populations that depend on river ecosystems.

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This study looked at how landscape features and climate influence when white-throated dippers breed over a 34-year period in Norway. Researchers found that the birds began hatching their eggs nearly nine days earlier due to warmer temperatures, with earlier breeding occurring in warmer springs and at lower altitudes. This earlier breeding helps improve their chances of having more young, which is crucial for their survival as they depend on aquatic food sources. Who this helps: This benefits researchers and conservationists interested in bird reproductive success and climate impacts.

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This study looked at how Atlantic salmon and brown trout affect the population and breeding success of the white-throated dipper bird in a river in Norway. Researchers found that even though the number of juvenile salmon increased significantly after salmon returned to the river, there was no change in the dipper population size or breeding success from 1993 to 2014. However, they did discover that as water quality improved thanks to liming, the breeding success of dippers went up, indicating that better water conditions lead to more food for the birds. Who this helps: This research benefits conservationists and ecologists working to improve river ecosystems.

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This study looked at how environmental factors like altitude and temperature affect the reproductive traits of a bird called the white-throated dipper over 35 years. Researchers found that the best laying dates for eggs and the number of eggs laid changed depending on the climate and population density, with birds laying eggs earlier when their population was high. Understanding these changes helps scientists learn how animals adapt to changing environments. Who this helps: This helps conservationists and wildlife managers working to protect bird populations.

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This study looked at how winter temperatures and population size affect the survival of a small bird species as climate change progresses. Researchers found that while warmer winters can lead to more birds overall, the population becomes more vulnerable during cold winters because of increased competition for resources. This indicates that understanding the complete effects of climate change on populations is crucial for making effective conservation plans. Who this helps: This research benefits conservationists and wildlife managers focused on protecting vulnerable bird species.

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This study looked at how changes in bird populations are influenced by environmental factors and population size. Researchers analyzed data from 13 bird populations and found that environmental changes mainly drive fluctuations in population size, while population control happens through higher death rates when the population gets too large. Crucially, they found that smaller populations are more affected by environmental conditions for new births, while larger populations are more impacted by the death of existing birds. Who this helps: This information helps conservationists and wildlife managers understand how to better protect bird populations.

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This study looked at how climate change impacts the survival of the little auk, a seabird in the Arctic. Over eight years, researchers found that warmer temperatures and shifts in weather patterns led to a decrease in adult survival rates, meaning fewer of these birds lived to reproduce. Specifically, as sea temperatures rose, food sources for the little auks decreased, resulting in lower survival rates over time. Who this helps: This research helps conservationists and environmental scientists working to protect Arctic wildlife.

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This study looked at how climate change affects the population of the white-throated dipper bird in southern Norway over 31 years. Researchers found that factors like winter temperatures and the timing of ice formation explained 84% of the changes in the bird population, revealing that harsh winters can severely limit their numbers. As winters warm, the bird population may grow, but erratic climate conditions may lead to fluctuations between growth and declines in their numbers. Who this helps: This research helps conservationists and wildlife managers understand how to better protect the white-throated dipper and similar species facing climate challenges.

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Researchers studied how to use measurements of baby white-throated dipper birds to estimate when these birds breed, especially since data on breeding times is often missing. They found that by using standard measurements like the birds' weight and feather length, they could accurately model growth and predict breeding timing, with suggestions for best practices based on nestling age. This research is important because it allows scientists to gather climate change data without needing extensive new studies, which can be expensive and time-consuming. Who this helps: This benefits ecologists and conservationists who study bird populations and their responses to climate change.

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This study looked at whether using patches that were prepared and stored for six weeks is as good as using freshly made patches to find contact allergies. Out of 71 patients, there were 169 positive allergy reactions, and the results showed that both types of patches worked similarly in catching allergies. This matters because it could save time and money in allergy testing without losing accuracy. Who this helps: This helps patients who need allergy testing and doctors conducting those tests.

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This study examined how climate change impacts the population growth of a small songbird called the dipper. Researchers found that changes, particularly in winter temperatures, significantly affect the bird's population, with the predicted climate change potentially leading to a much larger increase in their numbers than previously thought. This is important because it helps us understand how climate factors can dramatically alter wildlife populations and the ecosystems they inhabit. Who this helps: This information benefits conservationists and wildlife managers working to protect bird populations.

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This study looked at how air pollution affects heavy metal build-up in a bird called the dipper in Norway. Researchers found that lead levels in these birds were higher in Southern Norway compared to Central Norway and dropped by over 40% from 1987 to 1994. However, other metals like cadmium, copper, and zinc showed no significant changes in their levels across different regions or years, suggesting that local pollution sources are more responsible for these metals. Who this helps: This information is useful for environmental scientists and conservationists monitoring pollution's effects on wildlife.