Fish & Aquatic Species
Fish & Aquatic Species
Energy & Wildlife
Energy & Wildlife
Tools & Technology
Tools & Technology
Species Management Research Program
The Species Management Research Program provides science that is used by managers, policy makers, and others for decisions that protect, conserve, and enhance healthy fish and wildlife populations across the United States and beyond.
News
Publications
Arctic marine mammals have had little exposure to vessel traffic and potential associated disturbance, but sea ice loss has increased accessibility of Arctic waters to vessels. Vessel disturbance could influence marine mammal population dynamics by altering behavioral activity budgets that affect energy balance, which in turn can affect birth and death rates. As an initial step in studying these l
Assembly methods for an external acoustic transmitter attachment device for fish telemetry studies
The purpose of this report is to describe the assembly methods for an external acoustic transmitter attachment device that can be used during fish telemetry studies. External attachment is a simple procedure that can limit handling and reduce recovery times on fish. This report provides step-by-step directions to assemble devices; this assembly method can be used for telemetry studies where extern
Terrestrial invertebrate diversity and occurrence in restored hardwood forest floodplains, Indiana, United States, June–August 2016
This report provides a summary of terrestrial invertebrates collected at old field, mature, and restored hardwood forest floodplain sites in northeast Indiana. Invertebrate populations were sampled at selected sites using walking butterfly transects, pitfall-enhanced Malaise invertebrate traps (PEMITs), and sweep nets. We identified a total of 19 taxonomic groups of butterflies, with 1, 11, and 18
Science
Population Ecology of Red Knots (C. c. roselaari) in the Pacific-Americas Flyway
The Red Knot (Calidris canutus roselaari) is long-distance migrant in the Pacific-Americas Flyway. The subspecies relies on a small number of stopover sites between Mexico and Alaska during migration. Extreme site fidelity and small population size make it vulnerable to environmental impacts and the effects of climate change.
Biology, Impacts and Control of Invasive Reptiles in the Everglades
Invasive species are considered to be second only to habitat degradation in terms of negative impacts on the Earth’s ecosystems, and our scientists make up a significant proportion of the global expertise in the rapidly-growing problem of invasive reptiles.
Ecology and Control of Invasive Reptiles in Florida
This project involves ongoing development of tools for the detection and control of invasive reptiles in Florida, with an emphasis on Burmese pythons (Python bivittatus) and Black and white tegu lizards (Salvator merianae). The goals are to reduce the risk of reptile invasions into, and impacts on, high-value resources such as Everglades National Park, Big Cypress National Preserve, and the...