Abstract:
:We demonstrate that natural heat stress on wild larval Drosophila melanogaster results in severe developmental defects in >10% of eclosing adults, and that increased copy number of the gene encoding the major inducible heat shock protein of D. melanogaster, Hsp70, is sufficient to reduce the incidence of such abnormalities. Specifically, non-adult D. melanogaster inhabiting necrotic fruit experienced severe, often lethal heat stress in natural settings. Adult flies eclosing from wild larvae that had survived natural heat stress exhibited severe developmental anomalies of wing and abdominal morphology, which should dramatically affect fitness. The frequency of developmental abnormalities varied along two independent natural thermal gradients, exceeding 10% in adults eclosing from larvae developing in warm, sunlit fruit. When exposed to natural heat stress, D. melanogaster larvae with the wild-type number of hsp70 genes (n=10) developed abnormal wings significantly more frequently than a transgenic sister strain with 22 copies of the hsp70 gene.
journal_name
Oecologiajournal_title
Oecologiaauthors
Roberts SP,Feder MEdoi
10.1007/s004420050935subject
Has Abstractpub_date
1999-11-01 00:00:00pages
323-329issue
3eissn
0029-8549issn
1432-1939pii
10.1007/s004420050935journal_volume
121pub_type
杂志文章相关文献
OECOLOGIA文献大全abstract::Interrelationships between morphology, microhabitat, water relations, and photosynthesis of a xeric fern, Notholaena parryi D.C. Eat. (Pteridaceae), were examined in the western Colorado desert. In its typical microhabitat rock outcroppings protected N. parryi from direct sunlight and moderated the diurnal variations ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00346249
更新日期:1978-01-01 00:00:00
abstract::Many plant species currently exist in fragmented populations of different sizes, while they also experience unpredictable climatic fluctuation over time. However, we still understand little about how plant demography responds to such spatial and temporal environmental variability. We studied population dynamics of an ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-009-1505-8
更新日期:2010-04-01 00:00:00
abstract::Field evidence indicates that adult microtines, especially females, may be a major cause of poor juvenile survival and this may be instrumental in their population regulation. This suggests that males and females behave differently towards young animals. To examine how adult males, nonlactating females, and lactating ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00377385
更新日期:1984-04-01 00:00:00
abstract::The aim of this study was to test if females of the aphid hyperparasitoid Dendrocerus carpenteri (Curtis produce patch marks. We tested if these marks inform a foraging female of the identity of the producer of the mark (the female herself or a conspecific female) and on the producer's success or failure in finding ho...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317313
更新日期:1993-05-01 00:00:00
abstract::A simple life table model was constructed for Tetranychus urticae in which daily survivorship of eggs and motil stages, fecundity, and development time was altered to assess the impact of each parameter on the intrinsic rate of increase. r. Interpretation of the trade-offs focused on management considerations.A second...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00367964
更新日期:1982-01-01 00:00:00
abstract::We have been releasing economically unimportant herbivorous mites of one species early in the season and protecting grapevines against another, more damaging herbivorous mite throughout the growing season. In this experiment, releases of economically unimportant Willamette mites alone, or of predatory mites alone, fai...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00325889
更新日期:1994-05-01 00:00:00
abstract::The natural occurrence of dogwood anthracnose (Discula destructiva) on young dogwood seedlings planted in different microenvironments in the southern Appalachian Mountains provided an opportunity to examine the effects of biotic stress on phenolic defense and insect herbivory. Dogwood trees planted in forest understor...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00318037
更新日期:1993-10-01 00:00:00
abstract::Pollination services are compromised by habitat destruction, land-use intensification, pesticides, and introduced species. How pollination services respond to such stressors depends on the capacity of pollinator assemblages to function in the face of environmental disruption. Here, we quantify how pollination services...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-017-4009-y
更新日期:2018-01-01 00:00:00
abstract::Studies of predation by roach (Rutilus rutilus) on zebra mussel (Dreissena polymorpha) in a large, eutrophic lake showed that there was a clearly marked size threshold (∼ 160 mm SL) above which roach began to feed on mussels. Roach preying on various sizes of mussels selected them in proportions different from their a...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317563
更新日期:1990-06-01 00:00:00
abstract::Mating durations of copepods were found to differ significantly between fishless high-altitude waters and lowland lakes containing fish. In lowland species the whole mating process was completed within a few minutes, but it averaged over an hour in high-altitude species. Alpine copepods showed a prolonged post-copulat...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-007-0768-1
更新日期:2007-09-01 00:00:00
abstract::Prescribed burning is a major control over element cycles in Tallgrass prairie (Eastern Kansas, USA). In this paper we report potential effects of fire on nonsymbiotic nitrogen fixation. Fire resulted in additions of available P in ash, which may stimulate nitrogen fixation by terrestrial cyanobacteria. Cyanobacterial...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00378663
更新日期:1989-06-01 00:00:00
abstract::Belowground processes in light gap openings are poorly understood, particularly in tropical forests. Fine roots in three zones of light gap openings and adjacent intact forest were regularly measured in buried bags and surface litter envelopes for 2 years. Fine root biomass does not vary significantly within gaps for ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317207
更新日期:1990-07-01 00:00:00
abstract::Larvae of the sessile marine invertebrate Bugula neritina (Bryozoa) are protected by an effective chemical defense. From the larvae, we isolated three bryostatin-class macrocyclic polyketides, including the novel bryostatin 20, that deterred feeding by a common planktivorous fish that co-occurs with B. neritina. A uni...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-004-1487-5
更新日期:2004-03-01 00:00:00
abstract::Estuarine assemblages of fishes and natant decapod crustaceans (i.e. nekton) comprise both permanent resident species and juveniles of coastal marine species that use estuaries primarily as nurseries. In an attempt to understand how the young of marine species successfully invade communities of permanent estuarine res...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00328680
更新日期:1995-09-01 00:00:00
abstract::Studies focused on how prey trade-off predation and starvation risk are prevalent in behavioral ecology. However, our current understanding of these trade-offs is limited in one key respect: we know little about the behavior of predators. In this study, we provide some of the first detailed information on temporal pat...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-006-0638-2
更新日期:2007-05-01 00:00:00
abstract::Competition for space is an important process on tropical coral reefs. Few studies have examined the role sponges play in community structure despite the fact that many sponges are competitively superior to reef-building corals in space acquisition. Surveys conducted throughout the Florida Keys indicated that Chondril...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050642
更新日期:1998-11-01 00:00:00
abstract::Urbanization is a major challenge for biodiversity conservation, yet the evolutionary processes taking place in urbanized areas remain poorly known. Human activities in cities set new selective forces in motion which need to be investigated to predict the evolutionary responses of animal species living in urban areas....
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-013-2663-2
更新日期:2013-11-01 00:00:00
abstract::The pressure to escape natural enemies may shape how herbivorous insects use their plant resources. On wild crucifers, ovipositional preferences of the diamondback moth (Plutella xylostella; DBM) were similar to searching preferences of its main parasitoid, an ichneumonid wasp (Diadegma insulare). But on cultivated cr...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317166
更新日期:1992-04-01 00:00:00
abstract::Specialist herbivores are known to alter their host's wound-induced responses but the beneficiaries of these alterations are unknown. Nicotiana attenuata plants release a burst of ethylene specifically in response to feeding by Manduca sexta larvae, which is known to suppress wound- and methyl jasmonate (MeJA)-inducib...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000581
更新日期:2001-04-01 00:00:00
abstract::Locomotory efficiency and potential has been studied in three species of the waterboatman Notonecta in relation to the predation strategies of these bugs.Morphometric analysis, estimating likely relative drag forces, mechanical advantages of the swimming legs and leg length/body length ratios allowed an estimation of ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00363849
更新日期:1982-02-01 00:00:00
abstract::The importance of positive interspecific interactions within physically stressful habitats has received increased attention from community ecologists. The exposed sandy beach is an example of a physically rigorous environment where biological interactions have long been considered insignificant. We examined the intera...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-002-1134-y
更新日期:2003-02-01 00:00:00
abstract::Correlates of individual plant escape from seed predation were investigated for an East African population of the shrub Crotalaria pallida (Papilionaceae) in which seed mortality due to chewing insects is high and varies among neighboring individuals. Several plant properties expected to influence phytophagous insect ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00345167
更新日期:1978-01-01 00:00:00
abstract::Deuterium isotope analyses have revolutionized the study of migratory connectivity because global gradients of deuterium in precipitation (deltaD(P)) are expressed on a continental scale. Several authors have constructed continental scale base maps of deltaD(P) to provide a spatial reference for studying the movement ...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-008-1143-6
更新日期:2008-11-01 00:00:00
abstract::We report the recovery of root nodules from P. glandulosa var. glandulosa in the eastern portion of its range, where the species reaches its greatest vegetational development. Single cores 4.7 cm in diameter and up to 250 cm deep yielded from 0 to over 250 nodules. Nodules were found at all depths below 10 cm, with th...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00318269
更新日期:1990-09-01 00:00:00
abstract::We studied the role of nematode predation in the functioning of detrital food webs assembled in microcosms. The microcosms contained defaunated humus and litter materials, a diverse microbial community with bacteria, fungi and protozoa, and a birch (Betula pendula) seedling infected with mycorrhizal fungi. Different l...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420050859
更新日期:1999-08-01 00:00:00
abstract::We tested whether temperature-induced variation in the growth rate of Rana cascadae tadpoles caused any variation in head width or leg length at metamorphosis, independent of the effects of temperature on body size. Body-size-adjusted head width appears to be insensitive to even large variations in tadpole growth rate...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s004420000458
更新日期:2000-11-01 00:00:00
abstract::Hybridisation is common in plants and can affect the genetic diversity and ecology of sympatric parental populations. Hybrids may resemble the parental species in their ecology, leading to competition and/or gene introgression; alternatively, they may diverge from the parental phenotypes, possibly leading to the colon...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3498-9
更新日期:2016-02-01 00:00:00
abstract::By analogy with deterministic stability, the stability of stochastic ecological systems can be viewed as a tendency for population densities to avoid dynamic boundaries (i.e. boundedness) or to approach a dynamic attractor (i.e. attraction). At the population level, these two views generate predictions consistent with...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/BF00317182
更新日期:1992-05-01 00:00:00
abstract::Clonal plants have more traits enabling individual persistence (larger belowground storage of buds and assimilates), whereas non-clonal plants have more traits enabling population persistence (a higher reliance on regeneration from seeds). This difference presumably makes those groups respond differently to disturbanc...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-020-04724-7
更新日期:2020-08-01 00:00:00
abstract::Demographic, functional, or habitat diversity can confer stability on populations via portfolio effects (PEs) that integrate across multiple ecological responses and buffer against environmental impacts. The prevalence of these PEs in aquatic organisms is as yet unknown, and can be difficult to quantify; however, unde...
journal_title:Oecologia
pub_type: 杂志文章
doi:10.1007/s00442-015-3439-7
更新日期:2016-01-01 00:00:00