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To authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1523-1739.2009.01295.x Byline: BRITTA EGGERS (*), ANDREA MATERN (*), CLAUDIA DREES (*), JAN EGGERS (*), WERNER HARDTLE (*), THORSTEN ASSMANN (*) Keywords: carabid beetle; connectivity; corridor; forest; fragmentation Abstract: Abstract: To counteract habitat fragmentation, the connectivity of a landscape should be enhanced. Corridors are thought to facilitate movement between disconnected patches of habitat, and linear strips of habitat connecting isolated patches are a popular type of corridor. On the other hand, the creation of new corridors can lead to fragmentation of the surrounding habitat. For example, heathland corridors connect patches of heathland and alternatively hedgerows connect patches of woodland. Nevertheless, these corridors themselves also break up previously connected patches of their surrounding habitat and in so doing fragment another type of habitat (heathland corridors fragment woodlands and woodland strips or hedgerows fragment heathlands). To overcome this challenge we propose the use of semi-open habitats (a mixture of heathland and woodland vegetation) as conservation corridors to enable dispersal of both stenotopic heathland and woodland species. We used two semi-open corridors with a mosaic of heathland and woody vegetation to investigate the efficiency of semi-open corridors for species dispersal and to assess whether these corridors might be a suitable approach for nature conservation. We conducted a mark-recapture study on three stenotopic flightless carabid beetles of heathlands and woodlands and took an inventory of all the carabid species in two semi-open corridors. Both methodological approaches showed simultaneous immigration of woodland and heathland species in the semi-open corridor. Detrended correspondence analysis showed a clear separation of the given habitats and affirmed that semi-open corridors are a good strategy for connecting woodlands and heathlands. The best means of creating and preserving semi-open corridors is probably through extensive grazing. Abstract (Spanish): El Valor de Corredores Semiabiertos para la Conexion Simultanea de Habitats Abiertos y Boscosos: un Caso de Estudio con Escarabajos del Suelo Resumen. Para contrarrestar la fragmentacion de habitat, se debe incrementar la conectividad de un paisaje. Se piensa que los corredores facilitan el movimiento entre fragmentos de habitat desconectados, las franjas lineales de habitat que conectan fragmentos aislados son un tipo de corredor popular. Por otra parte, la creacion de nuevos corredores puede conducir a la fragmentacion del habitat circundante. Por ejemplo, los corredores de brezales conectan fragmentos de brezal y alternativamente los cercos vivos conectan fragmentos de bosque. Sin embargo, estos corredores a su vez interrumpen paisajes previamente conectados con su habitat circundante y al hacerlo fragmentan otro tipo de habitat (los brezales fragmentan bosques y los cercos vivos fragmentan brezales). Para superar este reto, proponemos el uso de habitats semiabiertos (una mezcla de brezal y bosque) como corredores para permitir la dispersion de especies estenotopicas de brezal y de bosque. Utilizamos dos corredores semiabiertos con un mosaico de vegetacion de brezal y de bosque para investigar la eficiencia de corredores semiabiertos para la dispersion de especies y para evaluar si estos corredores pueden ser un metodo adecuado para la conservacion de la naturaleza. Realizamos un estudio de marcaje-recaptura con tres espceis estenotopicas de escarabajos carabidos no voladores en brezales y bosques e hicimos un inventario de todas las especies de carabidos en dos corredores semiabiertos. Ambos enfoques metodologicos mostraron una inmigracion simultanea de especies de bosque y de brezal en el corredor semiabierto. El analis de correspondencia sin tendencias mostro una clara separacion de los habitats y afirmo que los corredores semiabiertos son una buena estrategia para conectar bosques y brezales. Probablemente, la mejor manera de crear y preservar corredores semiabiertos es mediante el pastoreo extensivo. Author Affiliation: (*)Leuphana University Lueneburg, Institute of Ecology and Environmental Chemistry, Scharnhorststrasse 1, D-21335 Lueneburg, Germany Article History: Paper submitted October 17, 2008; revised manuscript accepted April 15, 2009

To purchase or authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1523-1739.2008.00977.x Keywords: anglers; Atlantic salmon; cutthroat trout; Great Barrier Reef; marine protected areas; recreational fishing; rockfish; stakeholders; taimen; westslope cutthroat trout; yellowfish Abstract: Abstract: Globally, the number of recreational fishers is sizeable and increasing in many countries. Associated with this trend is the potential for negative impacts on fish stocks through exploitation or management measures such as stocking and introduction of non-native fishes. Nevertheless, recreational fishers can be instrumental in successful fisheries conservation through active involvement in, or initiation of, conservation projects to reduce both direct and external stressors contributing to fishery declines. Understanding fishers' concerns for sustained access to the resource and developing methods for their meaningful participation can have positive impacts on conservation efforts. We examined a suite of case studies that demonstrate successful involvement of recreational fishers in conservation and management activities that span developed and developing countries, temperate and tropical regions, marine and freshwater systems, and open- and closed-access fisheries. To illustrate potential benefits and challenges of involving recreational fishers in fisheries management and conservation, we examined the socioeconomic and ecological contexts of each case study. We devised a conceptual framework for the engagement of recreational fishers that targets particular types of involvement (enforcement, advocacy, conservation, management design [type and location], research, and monitoring) on the basis of degree of stakeholder stewardship, scale of the fishery, and source of impacts (internal or external). These activities can be enhanced by incorporating local knowledge and traditions, taking advantage of leadership and regional networks, and creating collaborations among various stakeholder groups, scientists, and agencies to maximize the probability of recreational fisher involvement and project success. Abstract (Spanish): Involucrando a Pescadores Recreativos en el Manejo y la Conservacion: Estudios de Caso Globales Resumen: Globalmente, el numero de pescadores recreativos es considerable y esta incrementando en muchos paises. Esta tendencia se asocia con el potencial de impactos negativos sobre la disponibilidad de peces mediante la explotacion o medidas de manejo como el aprovisionamiento e introduccion de peces no nativos. Sin embargo, los pescadores recreativos pueden jugar un papel decisivo en el exito de la conservacion de pesquerias mediante su participacion activa en, o en el inicio de, proyectos de conservacion para reducir los factores estresantes, tanto directos como externos, que contribuyen a la declinacion de las pesquerias. El entendimiento de las preocupaciones de los pescadores por el acceso sustentable al recurso y por el desarrollo de metodos para una participacion significativa puede tener impactos positivos sobre los esfuerzos de conservacion. Examinamos un conjunto de estudios de caso que demuestran una participacion exitosa de pescadores recreativos en actividades de manejo y conservacion en paises desarrollados y en desarrollo, regiones templadas y tropicales, sistemas marinos y dulceacuicolas y en pesquerias de acceso abierto y cerrado. Para ilustrar los beneficios y retos potenciales de involucrar a pescadores recreativos en el manejo y la conservacion de pesquerias, examinamos el contexto socioeconomico y ecologico de cada estudio de caso. Disenamos un marco conceptual para comprometer a pescadores recreativos que enfoca diferentes tipos de compromiso (coercion, intercesion, conservacion, diseno de manejo [tipo y localidades], investigacion y monitoreo) con base en el grado de responsabilidad de las partes interesadas, la escala de la pesqueria y la fuente de impactos (interna o externa). Estas actividades se pueden mejorar mediante la incorporacion del conocimiento y tradiciones locales, el aprovechamiento de las redes regionales de liderazgo y la creacion de colaboraciones entre los diferentes grupos de interes, cientificos y agencias para maximizar la probabilidad de la participacion de pescadores recreativos y el exito del proyecto. Author Affiliation: (*)Environmental Science and Management, Portland State University, P.O. Box 751, Portland, OR 92707, U.S.A., emailgraneke@pdx.edu ([dagger])Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, U.S.A. ([double dagger])U.S. Bureau of Land Management, P.O. Box 2965, Portland, OR 97204, U.S.A. (s.)Department of Environmental Sciences, University of Technology, Sydney, P.O. Box 123 Broadway, NSW 2007, Australia (**)Great Barrier Reef Marine Park Authority, P.O. Box 1379, Townsville, QLD 4810, Australia ([dagger][dagger])Department of Natural Resources and Environmental Science, University of Nevada-Reno, 1000 Valley Road, M.S. 186, Reno, NV 89512, U.S.A. ([double dagger][double dagger])Sport Fishing Institute, 67 McKenzie Crescent, Sidney, BC V8L 5Y7, Canada (s.s.)C.A.P.E. Estuaries Programme, CapeNature, Private Bag 5014, Stellenbosch 7599, South Africa (***)Trout Unlimited, 329 Crater Lake Avenue, Medford, OR 97504, U.S.A. ([dagger][dagger][dagger])Department of Biological Sciences, University of Calgary, 2500 University Drive, Calgary, AB T2N 1N4, Canada ([double dagger][double dagger][double dagger])Institute of Inland Fisheries, Im Konigswald 2, 14469 Potsdam-Sacrow, Germany (s.s.s.)Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Department of Biology and Ecology of Fishes, Muggelseedamm 310, 12587 Berlin, Germany, and Humboldt-University of Berlin, Institute of Animal Sciences, Inland Fisheries Management Lab, Philippstrasse 13, Haus 7, 10115 Berlin, Germany Article History: Paper submitted July 18, 2007; revised manuscript accepted January 14, 2008.Correction added after publication 15 July 2008; Authorship was amended for accuracy. Article note: (****) Authors contributed equally