Results 21 to 30 of about 13,957 (247)
Extrinsic Inter- and Intraspecific Competition in Parasitoid Wasps
Annual Review of Entomology, 2022 The diverse ecology of parasitoids is shaped by extrinsic competition, i.e., exploitative or interference competition among adult females and males for hosts and mates. Adult females use an array of morphological, chemical, and behavioral mechanisms to engage in competition that may be either intra- or interspecific.
Ode, Paul J. +2 more
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Mathematical Model of Iteroparous and Semelparous Species Interaction
Cauchy: Jurnal Matematika Murni dan Aplikasi, 2022 A species can be categorized based on its reproductive strategy, including semelparous and iteroparous. Semelparous species is a species that reproduces only once in its lifetime shortly before dying, while iteroparous species is a species that ...
Arjun Hasibuan +2 more
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Cricotopus lebetis Intraspecific Competition and Damage to Hydrilla [PDF]
Florida Entomologist, 2020 Cricotopus lebetis Sublette (Diptera: Chironomidae) is an aquatic insect adventive in Florida. Evidence from previous studies suggest the insect may have value as an augmentative biological control agent for hydrilla, Hydrilla verticillata (L.f.) Royle (Hydrocharitaceae), but there are gaps in knowledge of the biology and life history traits.
Baniszewski, Julie +4 more
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Genetic divergence and aggressiveness within a supercolony of the invasive ant Linepithema humile [PDF]
NeoBiota, 2022 Biological invasions constitute an opportunity to study the evolutionary processes behind species’ adaptations. The invasive potential of some species, like the Argentine ant (Linepithema humile), has likely been increasing because they show low ...
Iago Sanmartín-Villar +4 more
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Intraspecific Competition and the Promotion of Ecological Specialization [PDF]
, 2021 Abstract The evolution of ecological specialization can be summed up in a single question: why would a species evolve a more-restricted niche space? Various hypotheses have been developed to explain the promotion or suppression of ecological specialization. One hypothesis, competitive diversification, states that increased intraspecific
Abdel H. Halloway, Joel S. Brown
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Competition between Medicago sativa and Dactylis glomerata in mixed culture
Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 1991 The higs yield obtained from mixte culture of Medicago sativa and Dactylis glomerata in favourable cultivating conditions, show the superiority of this mixture in obtaining rich and constant yields.
Ioan ROTAR, Aurelia MOLDOVAN
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Virus infection suppresses Nicotiana benthamiana adaptive phenotypic plasticity. [PDF]
PLoS ONE, 2011 Competition and parasitism are two important selective forces that shape life-histories, migration rates and population dynamics. Recently, it has been shown in various pathosystems that parasites can modify intraspecific competition, thus generating an ...
Stéphanie Bedhomme, Santiago F Elena
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Egg chemoattractants moderate intraspecific sperm competition [PDF]
Evolution Letters, 2017 AbstractInteractions among eggs and sperm are often assumed to generate intraspecific variation in reproductive fitness, but the specific gamete-level mechanisms underlying competitive fertilization success remain elusive in most species. Sperm chemotaxis–the attraction of sperm by egg-derived chemicals—is a ubiquitous form of gamete signaling ...
Lymbery, Rowan A. +2 more
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Frontiers in Marine ScienceIntraspecific competition and resource diversity are considered major drivers of niche differentiation, which are expected to promote population niche expansion by driving individuals to feed on alternative resources and/or by enhancing individual diet ...
Rodgee Mae Guden +3 more
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Widespread disruptive selection in the wild is associated with intense resource competition
BMC Evolutionary Biology, 2012 Background Disruptive selection has been documented in a growing number of natural populations. Yet, its prevalence within individual systems remains unclear. Furthermore, few studies have sought to identify the ecological factors that promote disruptive
Martin Ryan A, Pfennig David W
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