Diet–demography relationships in a long- lived predator: from territories to populations - Resano- Mayor - 2. Oikos. Understanding the mechanisms that shape animal population dynamics is of fundamental interest in ecology, evolution and conservation biology. Food supply is an important limiting factor in most animal populations and may have demographic consequences. Optimal foraging theory predicts greater consumption of preferred prey and less diet diversity when food is abundant, which may benefit key fitness parameters such as productivity and survival. Nevertheless, the correspondence between individual resource use and demographic processes in populations of avian predators inhabiting large geographic areas remains largely unexplored, particularly in complex ecosystems such as those of the Mediterranean basin. Based on a long- term monitoring program of the diet and demography of Bonelli's eagle Aquila fasciata in western Europe, here we test the hypothesis that a predator's diet is correlated to its breeding productivity and survival at both the territorial and population levels, and ultimately to its population growth rate. At the territorial level, we found that productivity increased with greater consumption of European rabbits Oryctolagus cuniculus, the Bonelli's eagle's preferred prey, and pigeons, an important alternative prey for this predator. The survival of territorial pairs was negatively affected by higher diet diversity, which probably reflected the inability to find sufficient high quality prey. Diet effects at the population level were similar but more noticeable than at the territorial level, i. Overall, our study illustrates how the diet of a predator species can be closely related to key individual vital rates, which, in turn, leave a measurable fingerprint on population dynamics within and among populations across large spatial scales. Diet Meal Plans - Eating. Well. These 7- day diet meal plans are designed by Eating. Well's food and nutrition experts to offer delicious, balanced meals for weight loss. Find the calorie level that is right for you with our 1,2. These weekly meal plans take the guesswork out of what to eat and make losing weight easy. Find the right calorie level and diet meal plan for you »Pictured Recipe: Sweet Potato Carbonara with Spinach & Mushrooms. A healthy diet can help you prevent, control, and even reverse diabetes. These tips will get you started. Nutrition is full of myths. What people believe is often the exact opposite of the truth. Here are 11 "diet" foods that are actually making people fatter. Eating enough high-fiber foods? Find out the dietary fiber content of common foods. 647 Washington St, Newton, MA 02458 (617) 965-2070. 1637 Beacon St # A, Waban, MA 02468 (617) 244-3962. 02468 (with variation) - accountability! I decided on the 02468 diet with these. Fast food, has become a bigger part of our diet and budget. 0 1.0 2.0 3.0 4.0 5.0 02468 1012 Dietary Knowledge Score. MyPyramid Intakes and Snacking Patterns of U.S. Adults Wh t W E t i A i NHANES 2007 2008 Highlights Food Surveys Research Group Dietary Data Brief No. 2012 ICN Food List For Interstitial. Learn more about the IC diet and find many IC friendly foods on our website and in the ICN Shop!
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
July 2017
Categories |