Guidelines for a cooperative approach to habitat management for a remnant native flock of prairie chickens near Hoyleton, Illinois

unpublishednot peer reviewedOpe

Annual Prairie-Chicken Management Report to Cooperators

Illinois Department of ConservationIllinois State Natural History SurveyIllinois Chapter, The Nature ConservancyIllinois Nature Preserves CommissionIllinois Endangered Species Protection Boardunpublishednot peer reviewedOpe

Annual Prairie-Chicken Management Report to Cooperators

Illinois Department of ConservationIllinois State Natural History SurveyIllinois Chapter, The Nature ConservancyIllinois Nature Preserves CommissionIllinois Endangered Species Protection Boardunpublishednot peer reviewedOpe

Grassland Wildlife Nest Studies, 1985

Illinois Department of Conservationunpublishednot peer reviewedOpe

Protection of Native Endangered Prairie-Chickens from Ring-Necked Pheasants on Illinois Sanctuaries 1 April - 31 August 1986

Illinois Department of Conservation Division of Natural Heritageunpublishednot peer reviewedOpe

Priorities for the Nongame Wildlife Conservation Fund

Handouts from sessions on Birds, Grassland/Agricultural, and ManagementWorkshop I. Species, B. Birds: Prairie Chickens - Why? | Workshop II. Habitats, C. Grassland/Agricultural: Prairie Chicken Habitat | Workshop III. Program Functions, B. Management: Prairie Chicken ManagementOpe

Prairie-Chicken research report to Cooperators February 1992

unpublishednot peer reviewedOpe

Acquisition and management of prairie chicken sanctuaries in Illinois

Ope

Evaluation of experimental genetic management in reintroduced bighorn sheep

Positive demographic responses have been reported in several species where the immigration or supplementation of genetically distinct individuals into wild populations has resulted in a genetic rescue effect. However, rarely have researchers incorporated what could be considerable risk of outbreeding depression into planning for genetic management programs. We assess the genetic effects of an experiment in genetic management involving replicate populations of California bighorn sheep (Ovis canadensis californiana) in Oregon, USA, which previously experienced poor productivity and numerical declines. In the experiment, two declining populations were supplemented with ewes from a more genetically diverse population of California bighorn sheep in Nevada. We incorporated analysis of genetic samples representing both experimental populations prior to supplementation, samples from the supplemented individuals, and samples collected from both experimental populations approximately one generation after supplementation. We used genetic analyses to assess the integration of supplemented and resident populations by identifying interpopulation hybrids. Further, we incorporated demographic simulations to assess the risk of outbreeding depression as a result of the experimental augmentation. Finally, we used data from microsatellites and mitochondrial sequences to determine if genetic management increased genetic diversity in the experimental populations. Our analyses demonstrated the success of genetic management by documenting interpopulation hybrids, identifying no evidence for outbreeding depression as a result of contact between the genetically distinct supplemented and resident populations, and by identifying increased population-level metrics of genetic diversity in postsupplementation populations compared with presupplementation levels

Selecting Indicator Portfolios for Marine Species and Food Webs: A Puget Sound Case Study

Ecosystem-based management (EBM) has emerged as a promising approach for maintaining the benefits humans want and need from the ocean, yet concrete approaches for implementing EBM remain scarce. A key challenge lies in the development of indicators that can provide useful information on ecosystem status and trends, and assess progress towards management goals. In this paper, we describe a generalized framework for the methodical and transparent selection of ecosystem indicators. We apply the framework to the second largest estuary in the United States – Puget Sound, Washington – where one of the most advanced EBM processes is currently underway. Rather than introduce a new method, this paper integrates a variety of familiar approaches into one step-by-step approach that will lead to more consistent and reliable reporting on ecosystem condition. Importantly, we demonstrate how a framework linking indicators to policy goals, as well as a clearly defined indicator evaluation and scoring process, can result in a portfolio of useful and complementary indicators based on the needs of different users (e.g., policy makers and scientists). Although the set of indicators described in this paper is specific to marine species and food webs, we provide a general approach that could be applied to any set of management objectives or ecological system