Open Access

“Would you like to open a subscription to this journal?” “Download this article for $35.00.” “Sign up to receive access to this article.” During my summer research I saw a lot of these windows pop up on my computer screen. One dead end followed by another. I grew weary of not having access to the studies that were highly pertinent to my area of research. Although my frustrations were never abated, I accepted this as my reality. I’ve acquiesced to the idea that my future as a researcher will be filled with endless hours of staring at a computer screen constantly telling me “No you may not read this article.” [excerpt

Freeing Nemo

Floating on the surface of the water, I observe the life teeming below me. The waves were carrying my body further and further into the beautiful reef; but all I was conscious of was the cleaner wrasse below bouncing from fish to fish, the parrotfish scraping algae from the coral, and the anemone protecting the ornate clownfish living within. [excerpt

Rape Culture Ruined My Favorite 80s Movie

I will admit that I wish my best friend was Duckie, I want to attend just one Saturday detention with Emilio Estevez, and I listen to an unhealthy amount of music from the Smiths and the Psychedelic Furs. Yes, I am a child of the nineties, but I spent many high school nights watching John Hughes films and attempting to dye my hair the perfect shade of Molly Ringwald red. [excerpt

What It\u27s Like to be a Radical Conservative

“What is your major?” “Environmental Science.” The snarky retort, “Don’t go joining GreenPeace now, you’re becoming a radical.” I know there are many uses of the word “radical,” but in this context, I know that it is not meant as a compliment. Because I study environmental science and global climate change, this person associates me with radicals – those utilizing extreme methods to bring about extreme changes. [excerpt

The F-Word

I’m thinking of a word. Can you guess it? This word is considered negative and harsh. It’s generally avoided in everyday conversations. You wouldn’t normally hear this word spoken by professors or sophisticated celebrities. It starts with an F… Do you know it? That’s right folks! It’s “feminist”. [excerpt

Fearless: Steph Adamczak

Steph Adamczak ’15 has been shaking things up on campus by having some fearless conversations about the current investments Gettysburg College is making in fossil fuels. Steph hopes that by opening these important conversations, the college will consider divesting from these specific investments, especially with increased support from the Gettysburg College student body. [excerpt

Culture Shock

Take one week living in our culture: Monday: A student quotes other students on Overheard at Gettysburg. “In the commons at 8:50am. Two girls. Completely serious. Girl 1: Have you been outside? Girl 2: Yea! It’s rape weather. Girl 1: I know. A girl could totally get raped out there.” [excerpt

Estimating reproductive costs in marine mammal bioenergetic models : a review of current knowledge and data availability

This review was funded by the Office of Naval Research (N000142012392), with support from the Marine Mammal Commission (MMC 19-173).Reproductive costs represent a significant proportion of a mammalian female's energy budget. Estimates of reproductive costs are needed for understanding how alterations to energy budgets, such as those from environmental variation or human activities, impact maternal body condition, vital rates and population dynamics. Such questions are increasingly important for marine mammals, as many populations are faced with rapidly changing and increasingly disturbed environments. Here we review the different energetic costs that marine mammals incur during gestation and lactation and how those costs are typically estimated in bioenergetic models. We compiled data availability on key model parameters for each species across all six marine mammal taxonomic groups (mysticetes, odontocetes, pinnipeds, sirenians, mustelids and ursids). Pinnipeds were the best-represented group regarding data availability, including estimates of milk intake, milk composition, lactation duration, birth mass, body composition at birth and growth. There were still considerable data gaps, particularly for polar species, and good data were only available across all parameters in 45\poor, with some species having little or no data for any parameters, particularly beaked whales. Even for species with moderate data coverage, many parameter estimates were tentative or based on indirect approaches, necessitating reevaluation of these estimates. We discuss mechanisms and factors that affect maternal energy investment or prey requirements during reproduction, such as prey supplementation by offspring, metabolic compensation, environmental conditions and maternal characteristics. Filling the existing data gaps highlighted in this review, particularly for parameters that are influential on bioenergetic model outputs, will help refine reproductive costs estimated from bioenergetic models and better address how and when energy imbalances are likely to affect marine mammal populations.Publisher PDFPeer reviewe

Fearless: The Next Wave of Insurgents

As we close out on another school year, the Surge staff is looking back on an awesome semester and preparing for a new year with new leadership. Katie Patterson ’15, Rashida Aluko-Roberts ’15,Steph Adamczak ’15, and Kathryn Bucolo ’14 are fearlessly taking the reigns and will continue bringing thought-provoking, challenging, and creative articles each week to Surge, and we can’t wait to see what they will do! [excerpt

Growth in marine mammals : a review of growth patterns, composition and energy investment

Funded under award from Office of Naval Research: N000142012392. DPC and SA were funded under the E&P Sound and Marine Life Joint Industry Programme of the International Association of Oil and Gas Producers (IOGP; grant 00-07-23). CRM is supported by the Australian Integrated Marine Observing System (IMOS), IMOS s enabled by the National Collaborative Research Infrastructure Strategy.Growth of structural mass and energy reserves influences individual survival, reproductive success, population and species life history. Metrics of structural growth and energy storage of individuals are often used to assess population health and reproductive potential, which can inform conservation. However, the energetic costs of tissue deposition for structural growth and energy stores and their prioritization within bioenergetic budgets are poorly documented. This is particularly true across marine mammal species as resources are accumulated at sea, limiting the ability to measure energy allocation and prioritization. We reviewed the literature on marine mammal growth to summarize growth patterns, explore their tissue compositions, assess the energetic costs of depositing these tissues and explore the tradeoffs associated with growth. Generally, marine mammals exhibit logarithmic growth. This means that the energetic costs related to growth and tissue deposition are high for early postnatal animals, but small compared to the total energy budget as animals get older. Growth patterns can also change in response to resource availability, habitat and other energy demands, such that they can serve as an indicator of individual and population health. Composition of tissues remained consistent with respect to protein and water content across species; however, there was a high degree of variability in the lipid content of both muscle (0.1–74.3%) and blubber (0.4–97.9%) due to the use of lipids as energy storage. We found that relatively few well-studied species dominate the literature, leaving data gaps for entire taxa, such as beaked whales. The purpose of this review was to identify such gaps, to inform future research priorities and to improve our understanding of how marine mammals grow and the associated energetic costs.Publisher PDFPeer reviewe