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Documents disponibles écrits par cet auteur (11)
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Article
Mark C. Drever, Auteur ; Luis M. Bautista-Sopelana, Auteur ; Juan C. Alonso, Auteur ; Juan G. Navedo, Auteur ; Markus Hrachowitz, AuteurThe migration of birds through a stopover site may be understood as a physical process of hydrological flow through a reservoir whose water levels rise and fall over a migration period. Hydrological flow models show promise as a way of integrati[...]
Article
David J. Messmer, Auteur ; Matthieu Guillemain, Auteur ; Mark C. Drever, Auteur ; Tom Langendoen, Auteur ; Robert G. Clark, AuteurFew studies have explored population dynamics of species sharing life-history traits and common environmental drivers but living in widely separated regions or continents. Large-scale climate cycles can impact habitats and populations over broad[...]
Article
Ann E. McKellar, Auteur ; Yves Aubry, Auteur ; Mark C. Drever, Auteur ; Christian A. Friis, Auteur ; Cheri L. Gratto-Trevor, Auteur ; Julie Paquet, Auteur ; Cynthia Pekarik, Auteur ; Paul A. Smith, AuteurThe Western Hemisphere Shorebird Reserve Network (WHSRN) is an international conservation initiative designed to protect the key habitats and resources used by shorebirds throughout their ranges. WHSRN is based on a simple yet powerful concept: [...]
Article
David D. Hope, Auteur ; Cynthia Pekarik, Auteur ; Mark C. Drever, Auteur ; Paul A. Smith, Auteur ; Cheri Gratto-Trevor, Auteur ; Julie Paquet, Auteur ; Yves Aubry, Auteur ; GARRY Donaldson, Auteur ; Christian Friis, Auteur ; Kirsty Gurney, Auteur ; Jennie Rausch, Auteur ; Ann E. McKellar, Auteur ; BRAD Andres, AuteurPrioritizing taxa for conservation action is a critical step in assessing management needs for migratory birds. Recent evidence suggests that many shorebird species are experiencing population declines. Shorebirds breed, migrate, and spend the n[...]
Article
Mark C. Drever, Auteur ; Barbara A. Beasley, Auteur ; Yuri Zharikov, Auteur ; Moira J. F. Lemon, Auteur ; Paul G. Levesque, Auteur ; Michael D. Boyd, Auteur ; Adrian Dorst, AuteurThe Tofino Wah-nah-jus Hilth-hoo-is Mudflats on Vancouver Island, British Columbia, Canada, include both pristine areas and sites with residential and resort development. Shorebird counts were conducted at six sites around these mudflats in 2011[...]
Article
Bernt-Erik Saether, Auteur ; Magnar Lillegard, Auteur ; Vidar Grotan, Auteur ; Mark C. Drever, Auteur ; Steinar Engen, Auteur ; Thomas D. Nudds, Auteur ; Kevin M. Podruzny, Auteur1. Geographic gradients in population dynamics may occur because of spatial variation in resources that affect the deterministic components of the dynamics (i.e. carrying capacity, the specific growth rate at small densities or the strength of d[...]
Article
Andrea R. Norris, Auteur ; Mark C. Drever, Auteur ; Kathy Martin, AuteurLarge-scale insect outbreaks, typical of temperate ecosystems, may increase food availability and influence species interactions in insectivorous bird communities. We assessed how population densities of a secondary cavity nester, the Mountain C[...]
Article
Mark C. Drever, Auteur ; Moira J. F. Lemon, Auteur ; Robert W. Butler, Auteur ; Rhonda L. Millikin, AuteurThe Fraser River Delta in British Columbia, Canada, is a globally significant stopover site for shorebirds, but the population status and trends of many species that use the site remain uncertain. We describe an ongoing program to monitor popula[...]
Article
Juan G. Navedo, Auteur ; Guillermo Fernández, Auteur ; Juanita Fonseca, Auteur ; Mark C. Drever, AuteurShrimp aquaculture farms have greatly expanded at tropical areas worldwide, especially during the past three decades. One of the main core areas of this expansion was the northwestern coast of Mexico, prompting conservation concern for the shore[...]
Article
Kristina L. Cockle, Auteur ; Kathy Martin, Auteur ; Mark C. Drever, AuteurTree cavities are proposed to limit populations and structure communities of cavity-nesting birds. Although the greatest diversity of cavity-nesting birds is found in tropical and subtropical moist forests, little is known about how tropical log[...]
Article
Mark C. Drever, Auteur ; Kathryn E. H. Aitken, Auteur ; Andrea R. Norris, Auteur ; Kathy Martin, AuteurWoodpeckers (family Picidae) show promise as indicators of avian diversity in forests because their populations can be reliably monitored, and their foraging and nesting activities can positively influence the abundance and richness of other for[...]
