Results 111 to 120 of about 53,339 (306)
International Journal of Osteoarchaeology, EarlyView.ABSTRACT Limited evidence of nutritional deficiencies has been identified in bioarchaeological studies of Native California populations, although isotopic and ethnohistoric research provides evidence of regional, seasonal, and cultural variability in food shortages.
Alyson Caine +3 more
wiley +1 more source
Pesquisa Veterinária BrasileiraRESUMO: A distribuição espacial e a abundância de carrapatos em estágio de vida livre foram examinadas em fragmentos de Mata Atlântica no Nordeste do Brasil.
Cristina F. da Fonseca +7 more
doaj +1 more source
Microhabitat of hatchery rainbow trout
, 1969 Hatchery rainbow trout, wild rainbow trout, or wild brown trout were introduced into a flume that simulated a natural stream. Fish were observed hourly and parameters of the selected microhabitat locations were measured. Fishes differed in water velocity of microhabitat areas selected, water strata utilized, and degree of thigmotaxis exhibited ...
Turner, Spencer Edward, author +3 more
openaire +1 more source
Oikos, EarlyView.By dispersing seeds, frugivorous animals affect spatial co‐occurrence of plants, ultimately influencing plant community dynamics. Frugivorous animals are intrinsically involved in plant community dynamics, by dispersing seeds of fleshy‐fruited plants and influencing their spatial co‐occurrence.
Antonio J. Perea +8 more
wiley +1 more source
Hawaiianische Käfer der Gattung Blackburnia (Coleoptera, Carabidae, Platynini) : ökologische Spezialisierungen und Implikationen für den Artenschutz [PDF]
, 2008 The Hawaiian Islands have arisen in isolation in the middle of the Pacific Ocean due to volcanism unleashed by interaction of mantle-deep thermal plumes with the overlying Pacific Plate (MONTELLI et al. 2004, ABOUCHAMI et al. 2005). This volcano “factory”
Liebherr, James K.
core
Community dynamics of lignicolous lichens on standing deadwood in a 275‐year chronosequence
Oikos, EarlyView.Dead trees provide discrete habitat patches in which patch quality changes gradually due to wood decomposition. Although in most cases these patches persist for not more than a few decades, in some ecosystems deadwood decomposition and the consequent change in habitat patch quality can be a centuries‐long process, potentially leading to dynamics of ...
Aleksi Nirhamo +4 more
wiley +1 more source
Scientia Marina, 2014 Local patterns of fish density, microhabitat use, feeding behaviour, bite rate, territory area and agonistic interactions were recorded for Ophioblennius trinitatis at an oceanic archipelago (southwestern Atlantic).
Paulo R. Medeiros +2 more
doaj +1 more source
Fruit‐quality tradeoffs generate asymmetry in plant reliance on mutualistic frugivores
Oikos, EarlyView.Seed dispersal is a fundamental ecological process influencing the evolution of plant life‐history strategies. In fleshy‐fruited plants dispersed by mutualistic frugivores, variation in fruit traits among closely related species may shape the temporal and spatial dynamics of dispersal events critical to population success.
João Vitor S. Messeder, Tomás A. Carlo
wiley +1 more source
Polymorphic mimicry, microhabitat use, and sex‐specific behaviour [PDF]
Journal of Evolutionary Biology, 2005 AbstractIn order to assess the adaptive importance of microhabitat segregation for the maintenance of mimetic diversity, I explore how flight height varies between the sympatric forms of the polymorphic butterfly Heliconius numata and their respective models in the genus Melinaea.
openaire +2 more sources
The effects of single versus successive warm summers on an intertidal community
Oikos, EarlyView.To accurately predict how organisms and ecological communities will respond to future conditions caused by climate change, we must consider the temporal dynamics of environmental stressors, including the effects of repeated exposures to stress. We performed a two‐year passive thermal manipulation in coastal British Columbia, Canada to determine how ...
Amelia V. Hesketh +3 more
wiley +1 more source