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Year Published: 2019

Role of recovering river herring population on smallmouth bass diet and growth

Fish assemblages in Atlantic coastal rivers have undergone extensive ecological change in the last two and a half centuries due to human influence, including extirpation of many migratory fish species, such as river herring (Alosa spp.) and introduction of nonnative piscivores, notably Smallmouth Bass Micropterus dolomieu. Recently, dam removals...

Watson, Jonathan M.; Coghlan, Stephen M.; Zydlewski, Joseph D.; Hayes, Daniel B.; Stich, Daniel S.

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Year Published: 2019

Life history of the endemic saddleback crayfish, Faxonius medius (Faxon, 1884), (Decapoda: Cambaridae) in Missouri, USA

The saddleback crayfish, Faxonius medius (Faxon, 1884), is endemic to a single drainage in eastern Missouri, USA, that is affected by heavy metals mining, and adjacent to a rapidly-expanding urban area. We studied populations of F. medius in two small streams for 18 months to describe the annual reproductive cycle and gather information about...

DiStefano, R.J.; Westhoff, J.T.; Rice, C.J.; Rosenberger, Amanda E.

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Year Published: 2019

Integration of social and ecological sciences for natural resource decision making: Challenges and opportunities

The last 25 years have witnessed growing recognition that natural resource management decisions depend as much on understanding humans and their social interactions as on understanding the interactions between non-human organisms and their environment. Decision science provides a framework for integrating ecological and social factors into a...

Fuller, Angela K.; Kelly F. Robinson; Richard C. Stedman; William F. Siemer; Daniel J. Decker

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Year Published: 2019

Understanding conservation decisions of agriculture producers

Most land in the United States (US) is privately owned and used for agriculture. To address the effect of agriculture on wildlife, conservation professionals and organizations need to understand the land use decisions made by farmers and ranchers. We developed a tool for categorizing farmers and ranchers by their conservation land use values (LUVs...

Gigliotti, Larry M.; Lily A. Sweikert

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Year Published: 2019

Flow-ecology relationships are spatially structured and differ among flow regimes

In streams, hydrology is a predominant driver of ecological structure and function. Providing adequate flows to support aquatic life, or environmental flows, is therefore a top management priority in stream systems. Flow regime classification is a widely accepted approach for establishing environmental flow guidelines. However, it is surprisingly...

Magoulick, Daniel D.

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Year Published: 2019

Evaluating the role of Farm Bill conservation program participation in conserving America’s grasslands

Grasslands are one of the most imperiled ecosystems in the world and the majority of the grassland ecosystem in the United States is privately owned and used for agriculture. Conversion of grasslands to row crops is expanding, fueled by commodity price increases, technological improvements, and agricultural policy. The U.S. government primarily...

Gigliotti, Larry M.; Lily A. Sweikert

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Year Published: 2019

Deer harvest variation in small and large management units in Pennsylvania

Large game management units often lead to criticisms from hunters because they assume smaller units possess less variation in wildlife populations and more closely represent their local area. In 2003, Pennsylvania, USA, replaced smaller, socio-political county-based management units with larger wildlife management units (WMUs). We tested the...

Diefenbach, Duane R.; Rosenberry, Christopher S.

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Year Published: 2019

Pitfall traps: A review of methods for estimating arthropod abundance

Pitfall traps are commonly used in diet studies for insectivorous and omnivorous wildlife. Pitfall trap methodologies and designs vary tremendously among studies and investigators, and this variation and lack of standardization limits scientists’ abilities to compare their results to others. We conducted a literature review to identify the most...

Conway, Courtney J.; Hohbein, Rhianna

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Year Published: 2019

Public acceptability of development in the Northern Forest of Vermont, USA – the influence of wildlife information, recreation involvement, and demographic characteristics

Increasing development such as roads and houses will alter future landscapes and result in biological, social, and economic trade-offs. Managing development requires information on the public’s acceptability of development and understanding which factors shape acceptability. In this study, we examined three questions: 1) What is the public’s...

Jessica Espenshade; James Murdoch; Donovan, Therese M.; Robert Manning; Charles Bettigale; John Austin

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Year Published: 2019

River reach restored by dam removal offers suitable spawning habitat for endangered Shortnose Sturgeon

The lowermost dam on the Penobscot River, Maine, was removed in 2013, making new habitat available for migratory fish. There is no evidence that endangered Shortnose Sturgeon Acipenser brevirostrum have spawned in the Penobscot River in recent years, but dam removal has facilitated access to potential freshwater habitat essential for spawning....

Zydlewski, Joseph D.; Catherine Johnston; Gayle Barbin Zydlewski; Sean Smith; Michael T. Kinnison

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Year Published: 2019

Incorporating productivity as a measure of fitness into models of breeding area quality of Arctic peregrine falcons

Using empirical location data from individuals to model habitat quality and species distributions is valuable towards understanding habitat use of wildlife, especially for conservation and management planning. Incorporating measures of reproductive success or survival into these models helps address the role of vital rates (a surrogate of fitness...

Andersen, David; Jason E. Bruggeman; Ted Swem; Patricia L. Kennedy; Debora Nigro

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Year Published: 2019

Modeling White Sucker (Catostomus commersonii) populations to assess commercial harvest influence on age structure

Commercial harvest of White Suckers Catostomus commersonii for bait in the American Lobster Homarus americanus industry is minimally regulated in Maine and there are concerns as to the influence of increasing harvest. We built a population model using parameters (i.e. age-specific mortality, age at maturity, and size-specific fecundity) from...

Zydlewski, Joseph D.; Begley, Meg; Stephen Coghlan Jr.