Habitat use and spatial fidelity of male South American sea lions during the nonbreeding period

first_imgConditions experienced during the nonbreeding period have profound long-term effects on individual fitness and survival. Therefore, knowledge of habitat use during the nonbreeding period can provide insights into processes that regulate populations. At the Falkland Islands, the habitat use of South American sea lions (Otaria flavescens) during the nonbreeding period is of particular interest because the population is yet to recover from a catastrophic decline between the mid-1930s and 1965, and nonbreeding movements are poorly understood. Here, we assessed the habitat use of adult male (n = 13) and juvenile male (n = 6) South American sea lions at the Falkland Islands using satellite tags and stable isotope analysis of vibrissae. Male South American sea lions behaved like central place foragers. Foraging trips were restricted to the Patagonian Shelf and were typically short in distance and duration (127 ± 66 km and 4.1 ± 2.0 days, respectively). Individual male foraging trips were also typically characterized by a high degree of foraging site fidelity. However, the isotopic niche of adult males was smaller than juvenile males, which suggested that adult males were more consistent in their use of foraging habitats and prey over time. Our findings differ from male South American sea lions in Chile and Argentina, which undertake extended movements during the nonbreeding period. Hence, throughout their breeding range, male South American sea lions have diverse movement patterns during the nonbreeding period that intuitively reflects differences in the predictability or accessibility of preferred prey. Our findings challenge the long-standing notion that South American sea lions undertake a winter migration away from the Falkland Islands. Therefore, impediments to South American sea lion population recovery likely originate locally and conservation measures at a national level are likely to be effective in addressing the decline and the failure of the population to recover.last_img read more

4 steps to relieve money stress

first_img 61SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr,Wendy Moody Wendy Moody is a Senior Editor with CUInsight.com. Wendy works with the editorial team to help edit the content including current news, press releases, jobs and events. She keeps … Web: www.cuinsight.com Details There’s a plethora of reasons that a person can feel stressed about money like being behind on bills or living paycheck to paycheck, and even if you are surviving just knowing that you owe money can cause you stress. It’s a situation that many people have found themselves in at one point or another, so even though you may feel alone in the moment you certainly aren’t.  While you might not be able to make the problem go away immediately, you can control your response to it.1. Change your languageThis is more than just a cliché – choosing to speak positively about a situation can improve your outlook and make you feel empowered. Instead of saying “I want to save more” try saying “I will spend less.”2. Stay in the presentMany people focus on the worst case when it comes to money, particularly if we are feeling overwhelmed or down. Try reminding yourself to take it one step at a time and not get upset over things that may or may not happen.3. Take a mental breakWhen you feel yourself starting to feel stress, take a walk, play with your kids or pet, or watch your favorite TV show. A break allows you to regain composure and control.4. Choose to build wealthMake your focus on achieving financial freedom, it will give you more joy that any material object ever could. When you feel yourself wanting to make an impulse buy think of all choices you will be giving yourself down the road by saving 10% now.last_img read more