Results 51 to 60 of about 1,471 (183)

COMPOSIÇÃO FLORÍSTICA E ESPECTRO BIOLÓGICO DE UM CAMPO DE ALTITUDE NO PARQUE ESTADUAL DA SERRA DO BRIGADEIRO, MINAS GERAIS - BRASIL,

Rodriguésia
RESUMO Nas elevadas altitudes do sudeste brasileiro são encontrados os campos de altitude. A fisionomia mais freqüentemente encontrada nos platôs relativamente extensos é a de arbustos inseridos em uma matriz de touceiras de gramíneas, com esparsas ervas
Alessandra Nasser Caiafa, Alexandre Francisco da Silva   +1 more
doaj   +1 more source

ELEVATIONAL RANGES AND LOCAL EXTINCTION RISK OF BEETLES OCCURRING IN THE “CAMPOS DE ALTITUDE” IN SOUTHEASTERN BRAZIL

Oecologia Australis, 2016
The mountaintops of the Atlantic Rainforest in Southeastern Brazil are dominated by high altitude grasslands, named Campos de Altitude (CA). Considering the location and the smaller habitat areas of communities on the mountaintops and the high frequency of endemic species, the assemblages in these habitats are particularly threatened by climate ...
Margarete Valverde Macedo, Vivian Flinte, Cristina de Oliveira Araujo, Luiz Felipe Lima da Silveira, Angela Machado Bouzan, Raíssa Dufrayer, Jéssica Herzog Viana, Rodrigo de Oliveira Araujo, Ethel Hentz, Ricardo Ferreira Monteiro   +9 more
openaire   +2 more sources

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

Strategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani, Mariano Mastrogiorgio, Giuseppe Carignani   +2 more
wiley   +1 more source

Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab

Symbolic Interaction, EarlyView.
How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz, Leslie DeChurch, Noshir Contractor   +2 more
wiley   +1 more source

Gesneriaceae da Serra da Pedra Branca, Caldas, Estado de Minas Gerais, Brasil

Hoehnea, 2019
RESUMO A Serra da Pedra Branca (SPB) localiza-se no sul do Estado de Minas Gerais, no município de Caldas (21°58’-21°55’S e 46°24’-46°22’W). Inserida no Domínio Atlântico e considerada área prioritária para a conservação da flora no Estado de Minas ...
Luciana Carvalho Pereira, Munike Gonçalves de Rezende, Alain Chautems, Luiz Menini Neto   +3 more
doaj   +1 more source

Improving manual tagging of camera trap videos for wildlife studies: a visual assistance tool applied to the endangered huillin Lontra provocax

Wildlife Biology, EarlyView.
In the last decades, the use of camera traps for wildlife studies has increased significantly due to advancements in technology leading to cost reduction and improved reliability. They facilitate the study of wild animals in their natural environment in a minimally invasive manner, eliminating the need for researchers to remain in the field for long ...
Luciano Marpegan, Kenya Campos Haedo, Carla Pozzi and (cpozzi@apn.gob.ar)   +2 more
wiley   +1 more source

Comparison of Three Sympatric Desert Lizards: Digestive Tract Structure, Digestive Enzyme Activities, Gut Microbiota, and Metabolites

Integrative Zoology, EarlyView.
We performed 16S rDNA sequencing and metabolite profiling for three sympatric lizard species—Teratoscincus roborowskii, Phrynocephalus axillaris, and Eremias roborowskii—and compared their goblet cell and enzyme activities in the digestive tract. Our study suggests that the dietary niche may promote divergence or convergence of microbiota across host ...
Yi Yang, Ziyi Wang, Ruichen Wu
wiley   +1 more source

Holocene vegetation, climate and fire dynamics in the Serra dos Órgãos, Rio de Janeiro State, southeastern Brazil

Acta Palaeobotanica, 2020
We analysed pollen and macro-charcoal from a sediment core representing the last 9840 cal yr BP, collected at 2003 m a.s.l. in a patch of upper montane Atlantic Rain Forest (UMARF) embedded in a campos de altitude (high-elevation grassland) matrix in the
Maria Carolina Guarinello de Oliveira Portes, Hermann Behling, Vincent Montade, Hugh Deforest Safford   +3 more
doaj   +1 more source

Scientists’ warning on the global destruction of rock outcrop ecosystems

Conservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula, Lucas N. Perillo, Gianluigi Ottaviani, Flávio F. Carmo, Mandar N. Datar, Katherine C. Enebeli‐Ekwutoziam, Bruno Fogliani, Stephen D. Hopper, Aboli Kulkarni, Hans Lambers, Rafael F. Magalhães, Frederico S. Neves, Jean‐François Ponge, Stefan Porembski, Bruno H. P. Rosado, Fernando M. G. Santos, Elycée Tindano, Bram Vanschoenwinkel, Aparna Watve, Fernando A. O. Silveira   +19 more
wiley   +1 more source

The former distribution of White‐tailed Eagles in Iberia, the Mediterranean and the Middle East: a case study of the importance of understanding historical distribution in informing current conservation and restoration interventions

Ibis, EarlyView.
The importance of considering historical data in developing conservation and restoration measures for individual species and for wider ecological restoration has been pointed out by recent reviews but often remains neglected in practice. This paper provides a case study illustrating the issue through a review of the former breeding distribution of the ...
Duncan J. Halley
wiley   +1 more source