Results 91 to 100 of about 1,575,655 (240)

Spatial segregation and bycatch risk as potential drivers of population trends of wandering albatrosses at South Georgia

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
V. Warwick‐Evans   +3 more
wiley   +1 more source

Evolution of generic competitive strategies and the importance of Michael E. Porter La evolución de las estrategias genéricas de competición y la influencia de Michael E. Porter A evolução das estratégias genéricas de competição e a influência de Michael E. Porter

open access: yesREGE Revista de Gestão, 2010
Generic competitive strategies are considered almost as archetypes in Business Administration, sometimes leading to over simplification of their concepts as well as underestimation of their importance. Since publication in 1980, as part of Michael E. Porter's book Competitive Strategy, the generic strategies of Differentiation, Leadership in Total Cost
Wilson Weber, Edison Fernandes Polo
openaire   +1 more source

Heterogeneities in the Ecoepidemiology of Trypanosoma cruzi Infection in Rural Communities of the Argentinean Chaco [PDF]

open access: yes, 2014
We conducted a cross-sectional survey of Trypanosoma cruzi infection of Triatoma infestans as well as dogs and cats in 327 households from a well-defined rural area in northeastern Argentina to test whether the household distribution of infection ...
Alvarado Otegui, Julián Antonio   +8 more
core   +1 more source

Evolutionary and environmental determinants of heat tolerance and acclimation capacity in herpetofauna

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Exploring heat tolerance and acclimation capacity can provide an effective approach to evaluating species’ sensitivity to extremely high temperatures due to climate warming. Despite some work on amphibian and reptile thermophysiological adaptation, related questions remain. We reviewed the literature to provide a synthesis of worldwide data on
Zijian Sun   +8 more
wiley   +1 more source

Meiosis and fluorescent banding in Edessa meditabunda and E. rufomarginata (Heteroptera: Pentatomidae: Edessinae)

open access: yesEuropean Journal of Entomology, 2003
Species of Pentatomidae are cytogenetically characterized by the presence of holokinetic chromosomes, a pre-reductional type of meiosis, and a great constancy not only in chromosome number (2n = 14 in 85% of the 250 species analyzed) but also in the sex ...
Pablo J. REBAGLIATI   +2 more
doaj   +1 more source

La evolución del activismo digital en México: una historia de dos movimientos "EZLN" y "43 Ayotzinapa" [PDF]

open access: yes, 2018
There is an important tradition in Mexico related to the use of the Internet as a communication strategy for distributing subversive and alternative political discourse since mid-1995, the Zapatista Army of National Liberation (EZLN), named after Manuel ...
Ramírez Plascencia, David
core   +1 more source

Does beak size affect acoustic frequencies in woodcreepers? [PDF]

open access: yes, 2000
We assessed the effect of beak morphology on the acoustic structure of woodcreeper (subfamily Dendrocolaptinae) songs using a comparative analysis of independent contrasts.
Palacios, María Gabriela   +1 more
core   +1 more source

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

En busca de la estructura perfecta: La evolución de las family office en perspectiva a largo plazo

open access: yesRevista Galega de Economía, 2014
Desde los años sesenta del siglo XX, el crecimiento de la infraestructura relacionada con la educación en empresa familiar, incluido el desarrollo de centros y asociaciones profesionales específicos, ha permitido la transferencia de nuevas ideas y tendencias en dirección de empresas. Consultores, instituciones y académicos han impulsado un proceso
openaire   +1 more source

Meiotic irregularities in Alstroemeria andina var. Venustula (Alstroemeriaceae) [PDF]

open access: yes, 2007
Alstroemeria andina Phil. var. venustula (Phil.) M. Muñoz (sub nom. A. andina Phil. subsp. venustula (Phil.) Ehr. Bayer) is a perennial, small herb, 5-16 cm tall, that occurs mainly at 2,800-3,700 meters above sea level, in populations of limited ...
Sanso, Andrea Mariel   +1 more
core  

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