Ecosystems

Publications

Filter Total Items: 31,684
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Year Published: 2019

Using the STARS Model to evaluate the effects of the proposed project for the long-term operation of State Water Project Incidental Take Permit Application and CEQA compliance

The California Department of Water Resources (DWR) requested analysis of juvenile Chinook salmon survival in the Sacramento-San Joaquin River Delta (henceforth identified as “the Delta”) as part of an effects analysis that will be included in an Incidental Take Permit (ITP) Application. This application is in compliance with the California...

Perry, Russell W.; Hansen, Amy C.; Evans, Scott D.; Kock, Tobias J.
Perry, R.W., Hansen, A.C., Evans, S.D., and Kock, T.J., 2019, Using the STARS Model to evaluate the effects of the proposed project for the long-term operation of State Water Project Incidental Take Permit Application and CEQA compliance: U.S. Geological Survey Open-File Report 2019–1127, 31 p. plus appendixes, https://doi.org/10.3133/ofr20191127.

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Year Published: 2019

Unintentional and intentional poisoning or harassment of cranes related to agriculture

No abstract available.

Austin, Jane E.
Austin, J.E. 2019. Unintentional and intentional poisoning or harassment of cranes related to agriculture. In: Mirande, CM, Harris, JT, editors. Crane Conservation Strategy. Baraboo, Wisconsin, USA: International Crane Foundation. p. 135-141.

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Year Published: 2019

Changes in agricultural land use and practices

No abstract available.

Austin, Jane E.
Austin, J.E. 2019. Changes in agricultural land use and practices. In: Mirande, CM, Harris, JT, editors. Crane Conservation Strategy. Baraboo, Wisconsin, USA: International Crane Foundation. p. 104-111.

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Year Published: 2019

Conversion of wetlands for agriculture and other land development

No abstract available.

Austin, Jane E.
Austin, J.E. 2019. Conversion of wetlands for agriculture and other land development. Crane Conservation Strategy. Baraboo, Wisconsin, USA: International Crane Foundation. p. 77-83.

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Year Published: 2019

Using the STARS model to evaluate the effects of the proposed action for the reinitiation of consultation on the coordinated long-term operation of the Central Valley and State Water Project

In 2016, the U.S. Bureau of Reclamation (USBR) and California Department of Water Resources requested a reinitiation of consultation under Section 7 of the Endangered Species Act on the coordinated long-term operations of the Central Valley and State Water Projects. This resulted in a Biological Assessment released by USBR in 2019. In its analysis...

Perry, Russell W.; Pope, Adam C.; Sridharan, Vamsi K.
Perry, R.W., Pope, A.C., and Sridharan, V.K., 2019, Using the STARS model to evaluate the effects of the proposed action for the reinitiation of consultation on the coordinated long-term operation of the Central Valley and State Water Project: U.S. Geological Survey Open-File Report 2019–1125, 31 p. plus appendixes, https://doi.org/10.3133/ofr20191125.

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Year Published: 2019

Development of two quantitative PCR assays for detection of several Cottus species from environmental DNA in Pacific coast watersheds of North America

We developed two quantitative PCR assays for use with environmental DNA (eDNA) to detect numerous species in the genus Cottus that are indigenous to the Pacific coast watersheds of North America. We conducted in vitro assay validations on ten Cottus species and 32 potentially co-occurring non-Cottus species. We demonstrate the efficacy of these...

Hoy, Marshal; Ostberg, Carl

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Year Published: 2019

Malignant melanoma of Brown Bullhead (Ameiurus nebulosus) in Lake Memphremagog, Vermont/Quebec

In 2012, brown bullhead (Ameiurus nebulosus) with large, raised, black growths were first reported from multiple areas within the Vermont portion of Lake Memphremagog. Subsequent surveys conducted from 2014-2017 at two sites within the lake indicated a prevalence of 30% in adult brown bullhead 200 mm and above total length. These lesions ranged...

Blazer, Vicki S.; Shaw, Cassidy H.; Smith, Cheyenne R; Emerson, P; Jones, Thomas R.

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Year Published: 2019

Standardized IMGT nomenclature of salmonidae IGH genes, the paradigm of Atlantic salmon and rainbow trout: from genomics to repertoires

In teleost fish as in mammals, humoral adaptive immunity is based on B lymphocytes expressing highly diverse immunoglobulins (IG). During B cell differentiation, IG loci are subjected to genomic rearrangements of V, D, and J genes, producing a unique antigen receptor expressed on the surface of each lymphocyte. During the course of an immune...

Magadan, Susana; Krasnov, Aleksei; Hadi-Saljoki, Saida; Afanasyev, Sergey; Mondot, Stanislas; Castro, Rosario; Salinas, Irene; Sunyer, Oriol; Hansen, John; Koop, Ben F; Lefranc, Marie-Paule; Boudinot, Pierre

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Year Published: 2019

The importance of natural versus human factors for ecological conditions of streams and rivers

Streams are influenced by watershed-scale factors, such as climate, geology, topography, hydrology, and soils, which mostly vary naturally among sites, as well as human factors, agriculture and urban development. Thus, natural factors could complicate assessment of human disturbance. In the present study, we use structural equation modeling and...

Tang, Tao; Stevenson, R. Jan; Grace, James

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Year Published: 2019

Temporal variation in genetic structure within the threatened spectacled eider

We examined the genetic structure of the threatened spectacled eider 14–18 years after the initial assessment to evaluate the influence of population recovery on diversity. Concordant with the initial assessment, spectacled eiders were highly structured at mitochondrial (mt) DNA and lacked differentiation at microsatellite loci. The degree and...

Sonsthagen, Sarah A.; Haughey, Christy; Sexson, Matthew G.; Solovyeva, Diana V; Petersen, Margaret R.; Powell, Abby

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Year Published: 2019

The effects of management practices on grassland birds—Henslow’s Sparrow (Centronyx henslowii)

Keys to Henslow’s Sparrow (Centronyx henslowii) management are providing large grasslands with tall, dense, herbaceous vegetation and well-developed litter; avoiding habitat disturbances during the breeding season; and controlling plant succession. Henslow’s Sparrows have been reported to use habitats with less than or equal to (≤) 122 centimeters...

Herkert, James R.
Herkert, J.R., 2019, The effects of management practices on grassland birds—Henslow’s Sparrow (Centronyx henslowii), chap. II of Johnson, D.H., Igl, L.D., Shaffer, J.A., and DeLong, J.P., eds., The effects of management practices on grassland birds: U.S. Geological Survey Professional Paper 1842, 16 p., https://doi.org/10.3133/pp1842II.

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Year Published: 2019

Evaluation of potential sources of sauger Sander canadensis for reintroduction into Lake Erie

Sauger (Sander canadensis) supported recreational and commercial fisheries in Lake Erie until the fishery collapsed in the early-1950s, with extirpation of sauger occurring soon after. Previous attempts to rebuild populations via stocking programs were unsuccessful, and the reasons for lack of success are unclear. The Ohio Department of Natural...

Hartman, Travis; Tyson, Jeff; Page, Kevin; Stott, Wendylee