Resultados de búsqueda - "Interspecific competition"

Trophic Resource Use by Sympatric vs. Allopatric Pelomedusid Turtles in West African Forest Waterbodies por Petrozzi, F., Gonedele Bi, S., Segniagbeto, G.H., Pacini, N., Fa, J.E., Luiselli, L.

“…Our study also showed that interspecific competition for food does not occur between these two species; instead, previous studies uncovered that a clear partitioning of the habitat niche occurs. …”
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Large herbivore responses to water and settlements in savannas por Ogutu, Joseph O., Piepho, Hans-Peter, Reid, Robin S., Rainy, M.E., Kruska, Russell L., Worden, J.S., Nyabenge, M., Hobbs, N.T.

“…The interaction between distances from settlement and water produced discernible spatial segregation among species in terms of the locations of their points of maximum density, presumably to minimize interspecific competition for forage and water. Settlements exerted relatively stronger influence on livestock distribution than water, resulting in densities that declined exponentially away from settlements at all distances from water.…”
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Temperature-specific competition in predatory mites: Implications for biological pest control in a changing climate por Guzman, Celeste, Aguilar-Fenollosa, Ernestina, Sahun, Rosa M., Ramon Boyero, Juan, Vela-López, José M., Wong, Eva, Jaques, Josep A., Montserrat, Marta

“…Population and community dynamics experiments were carried out at two abiotic conditions mimicking local climates in a Mediterranean region, to estimate the population cariying capacity (k) and interspecific competition (a) for each predatory mite species. …”
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Does host quality dictate the outcome of interference competition between sympatric parasitoids? Effects on their coexistence por Cebolla, Ruth, Bru, Pablo, Urbaneja, Alberto, Tena, Alejandro

“…Generally, within a host species, large hosts (i. e. older instars) are considered of higher quality for parasitoid development. Studies of interspecific competition between parasitoids have considered the effect of host instar on indirect competition but its effect on interference competition remains unknown. …”
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Positive and negative interspecific interactions between coexisting rice planthoppers neutralise the effects of elevated temperatures por Horgan, Finbarr G., Arida, Arriza, Ardestani, Goli, Almazan, Maria Liberty P.

“…Using a series of reciprocal density experiments with gravid females and developing nymphs, we examined interspecific competition between two coexisting phloem feeders Nilaparvata lugens (BPH) and Sogatella furcifera (WBPH), on rice at 25 and 30°C. …”
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Population regulation of African buffalo in the Mara–Serengeti ecosystem por Dublin, H.T., Ogutu, Joseph O.

“…Following reduction of rinderpest and buffalo population increase, interspecific competition for food, notably with cattle and wildebeest (Connochaetes taurinus Burchell), was thought to be the primary regulatory factor in the ecosystem. …”
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Foraging niche separation of social wasps in an invaded area: Implications for their management por Masciocchi, Maite, Unelius, Carl Rikard, Buteler, Micaela

“…Foraging niche separation may be a mechanism to promote coexistence of two competing species by concentrating intraspecific competition relative to interspecific competition. The present study investigated foraging behaviour and microhabitat use of two coexisting species of invasive social wasps, Vespula germanica and Vespula vulgaris, when foraging for two different food resources. …”
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Combined use of the larvo-pupal parasitoids Diachasmimorpha longicaudata and Aganaspis daci for biological control of the medfly por De-Pedro, Luis, Tormos, José, Harbi, Ahlem, Ferrara, Fernando, Sabater-Munoz, Beatriz, Asís, Josep D., Beitia, Francisco J.

“…However, the beneficial effects of natural enemies are not always additive because of several factors, including interspecific competition between these biocontrol agents. …”
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Browsing behaviour in complex ungulate multi-species systems in Southern Sweden por Sandberg, Jonatan

“…Ungulate species richness had a negative impact on browsing pressure which likely means that increased interspecific competition could cause a decrease in browsing pressure. …”
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Africa RISING Tanzania- Intensifying Maize-Based Cropping Systems Through Pigeonpea Integrations por World Agroforestry Centre, Sokoine University of Agriculture

“…Pigeonpea plants have both physiological and morphological attributes that may reduce interspecific competition in mixed culture. The initial slow growth of pigeonpea relative to cereals minimizes competition in intercropping systems, making pigeonpea compatible with most cereal-based systems. …”
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Intra-host interspecific larval parasitoid competition solved using modelling and bayesian statistics por Bruzzone, Octavio Augusto, Logarzo, Guillermo Alejandro, Aguirre, María Beatriz, Virla, Eduardo Gabriel

“…This study tests the influence of intrinsic interspecific competition between inmature stages within on an individual host, and parasitoid arrival order among the three parasitoid species. …”
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Effects of shade and humus fertility on boreal forest tree seedling growth, competition and mycorrhizal colonisation por Dehlin, Helena

“…The shade tolerant P. abies did not show any shade avoidance responses. Interspecific competition between seedlings was generally not significantly affected by humus and shade treatments. …”
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Intercropping for enhanced yield stability and food security por Raseduzzaman, Md.

“…Moreover N fertilizer significantly reduces LER values indicating that available soil N decreases the complementarity among the intercrop component crops and increases the interspecific competition. No significant difference was observed among the CV of cereal sole crop and intercrops except legume sole crop. …”
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The apparent population crash in heath-hares Lepus timidus sylvaticus of southern Sweden por Winiger, Alexander

“…It has been suggested that climate warming, habitat degradation, pathogens, predation and interspecific competition are potential candidates to drive this supposed decline. …”
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Infestation of fruit by conspecific and heterospecific females deters oviposition in two Tephritidae fruit fly species por Liendo, María Clara, Parreño, María Alejandra, Pietrek, Alejandro G., Bouvet, Juan Pedro, Milla, Fabian Horacio, Vera, María Teresa, Cladera, Jorge Luis, Segura, Diego Fernando

“…These responses indicate that cross‐recognition, supposedly a highly beneficial trait, could be occurring in nature, thus reducing interspecific competition and contributing to the coexistence of these species.…”
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Effects of nitrogen quality and quantity on weed-crop competition por Hallberg, Lukas

“…Higher resource pool diversity increased the interspecific competition between A. fatua and A. sativa. The unresponsiveness of A. fatua to changing nutrient regimes and competition suggests that reinforced competition from the crop could be used to exhaust the weed’s energy reserves. …”
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Fiskares uppfattning om förändring i status hos ett rödingbestånd i en Jämtländsk sjö por Malmgren, Johanna

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Life history and large-scale habitat use of brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis) por Öhlund, Gunnar

“…A powerful way of dealing with interspecific competition is measuring of species-specific changes in fitness over environmental and biotic gradients, an approach that requires accurate measurements of life historical metrics. …”
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How does the neighborhood of annual or perennial species affect the first one hundred days of the establishment of grasses? por Lavarello Herbin, Agustina, Gatti, María Laura Amalia, Golluscio, Rodolfo Ángel

“…We evaluated the early dynamics of tillering, carbon partitioning and both intra- and interspecific competition in – or between – an annual (Bromus willdenowii; prairie grass; Bw) and a perennial (Dactylis glomerata; orchard grass; Dg) C3 grass species. …”
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Land use changes and its consequences on moose habitat por Olofsson, Ida

“…But more research is needed to explore how other factors are influencing, for example intra- and interspecific competition. Based on my result, I suggest more research on moose habitats during spring in agricultural dominance landscapes and female moose ability to meet the growing need for energy during parturition and lactation.…”
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