Results 281 to 290 of about 6,704,120 (325)

Interspecific Pollen-Pistil Interaction in Eucalyptus L'Hér. (Myrtaceae): The Effect of Taxonomic Distance

Annals of Botany, 1991
M Sedgley
exaly   +2 more sources

Disturbance, interspecific interaction and diversity in metapopulations

Biological Journal of the Linnean Society, 1991
Metapopulation diversity patterns depend on the relations among the timescales of local biological interactions (predation, competition), the rates of dispersal among local populations and the patterns of disturbance. We investigate these relationships using a family of simple non-linear Markov chain models.
H. Caswell, J. Cohen
semanticscholar   +2 more sources

VARIATION IN INTERSPECIFIC INTERACTIONS

Annual Review of Ecology and Systematics, 1988
Deux aspects sont etudies: la repartition des resultats,a l'interieur des populations,en fonction de la variation de l'âge et de la taille des individus,la densite,la taille et la structure des populations,ou la repartition des genotypes;et la variation des resultats en fonction de l'environnement.
openaire   +1 more source

Interspecific interactions in temperate agroforestry

Agroforestry Systems, 2004
The ecological principles that define the competitive and complementary interactions among trees, crops, and fauna in agroforestry systems have received considerable research attention during the recent past. These principles have not yet, however, been adequately integrated and synthesized into an operational approach.
S. Jose, A.R. Gillespie, S.G. Pallardy
openaire   +1 more source

Interspecific interactions in a methane‐utilizing mixed culture

Biotechnology and Bioengineering, 1980
AbstractA two‐member methane‐utilizing mixed culture of bacteria, formed by combining two pure cultures isolated from a naturally occurring methane‐utilizing mixed culture, was studied in continuous culture. From the nutritional requirements and substrate ranges of the pure cultures, a mechanism for the interspecific interactions occurring in the mixed
S C, Lamb, J C, Garver
openaire   +2 more sources

Nuclear-cytoplasmic interactions in amoeba interspecific hybrids

Experimental Cell Research, 1974
Abstract Interspecific hybrids between two species of amoeba, A. proteus and A. indica have been produced by reciprocal nuclear transfer after enucleating the host cells. In the hybrid cells the diameter of the transplanted nucleus changes to that characteristic of the host cell nucleus. In the combination of A. indica nucleus and A.
S, Chatterjee, M V, Rao
openaire   +2 more sources

Heterogenous interspecific interactions in a host–parasite system

International Journal for Parasitology, 2006
Macroparasites of vertebrates usually occur in multi-species communities, producing infections whose outcome in individual hosts or host populations may depend on the dynamics of interactions amongst the different component species. Within a single co-infection, competition can occur between conspecific and heterospecific parasite individuals, either ...
Jackson, J. A., Pleass, R. J., Cable, J., Bradley, J. E., Tinsley, R. C.   +4 more
openaire   +3 more sources

Stomach parasites of donkeys in Morocco: habitat and interspecific interactions

Veterinary Parasitology, 1993
One hundred and four donkeys originating from several regions of Morocco were necropsied during 1 year. The parasites in their stomachs were counted and locations determined in the cardiac, fundic and pyloric portions. Synergistic or antagonistic interactions between parasites were assessed by a principal component analysis.
Pandey, V. S., Cabaret, J.
openaire   +3 more sources

Interspecific Interactions II: Competition and Mutualism

2020
Competition and mutualism are important forms of biotic interaction in aquatic communities. Quantification of the population and community-level effects of these interactions has historically been less common in fisheries analyses than predation. In part, this reflects the difficulties in conducting controlled experiments for larger-bodied organisms in
Michael J. Fogarty, Jeremy S. Collie
openaire   +1 more source

Interspecific Interaction and Similarity in Species Composition

The American Naturalist, 1988
To resolve the controversy initiated by Connor and Simberloff's (1978) analysis of similarity among the biota of the Galapagos Islands, we analyze the theoretical relationship between interspecific interactions and similarity. A counterintuitive result from our analysis is that all interspecific interactions, including competition, tend to increase ...
David N. Hamill, S. Joseph Wright
openaire   +1 more source