875 resultados para Bat Ecology
Resumo:
Euskara. EAEko hezkuntza zentroetan ikasle haurdunak saioetatik eskluituak izan ez daitezen, Gorputz Hezkuntzako saioetarako inklusibotasun programa proposamen bat. Horretarako aurrena errebisio bibliografikoa egin da, eta jarraian proposamenaren garapena.
Resumo:
Lan hau eskola kiroleko egitasmo bat da eta proposamen berritzailea kirol jokoen ezaugarri eta egitura oinarri harturik egiten da.
Resumo:
As a contribution to the understanding of comparative social trends within the cetacean family Delphinidae, a 22-month study was conducted on the shortfinned pilot whale, Globicephala macrorhynchus, which has been suggested to have a unique social system in which males and females in the same group are related and mating occurs outside of the group. The individual identification of 495 pilot whales, analysed in daily group association patterns, allowed identification of 46 pods. They were classified as productive or non-productive based on the presence or absence of immature animals. Productive pods were a significantly larger, although 12% of them lacked adult males. Two classes of whales (residents and visitors) were defined by patterns of occurrence,suggesting differential patterns of habitat use. Resident pods occasionally travelled together (41% of all groups) and associations between age and sex classes showed that in mixed-pod groups, the highest ranked associations of the reproductive females were with males from other pods, while within pods, adult males and females associated less. During summer, the proposed peak conception period, pilot whale groups were significantly larger and contained individuals from a significantly greater number of pods. These findings support the hypothesis that males and females mate when associating with individuals from other pods. A comparative analysis of sexual dimorphism, brain size, and testes size, habitat, prey and group size within the 17 delphinid genera identified a correlation between sexual dimorphism and body size, but relative measures of brain size and testes size did not correlate with broad ecological or social classifications. However, a comparison of three delphinid societies identified two distinct male mating systems: males of the small, mono-morphic Tursiops truncatus live in age/sex segregated groups and mate with a number of discrete female communities. Males in the large sexually dimorphic Glob icephala spp. and Orcinus orca mate with associated female pods and yet remain with their female kin. This corresponds to the avunculate social system described in some human societies. It could evolve from a promiscuous mating system where there is little guarantee of paternity and where males that live with their kin increase their inclusive fitness.
Resumo:
[EN] In this paper a short basque text included in a french comedy from XVIIth century is published and analyzed. That text appears in the second scene ofthe Raymond Poisson's comedy, "Le Poète Basque". It seems difficult to specify which variety of Basque is used by Poisson; anyway, I try to demonstrate that text shows characteristics of the dialects of Labourd and Low Navarre.
Resumo:
[EU] Gure diputazioetako artxiboetan gordetzen diren eskuizkribu anitzetarik bat ematen dut lan honetan argitara: Nafarroako Artxibo Nagusiko Bonaparte Ondarean B-118 signatura daraman "Doctrina Uscaraz", erronkarieraz idatzitako dotrina osatugabea. Testu honen edizioa paratzeaz gain, iruzkina ere eransten dut, hala testuko puntu ilunak hobeki ulertarazteko nola kontu askotan hain bitxi gertatzen zaigun erronkariera ezagutzeko aurrerapauso txiki bat egiteko asmoz.
Resumo:
Nivel educativo: Grado. Duración (en horas): De 41 a 50 horas
Resumo:
The daytime composition and relative abundance of zooplankton species were studied in three treatments of two replicate earthen ponds each with nutrient sources and water replenishment regimes. Treatment -A (200m super(2) surface area supplied 900kgha super(-1) pig manure only). Treatment -B (200m super(2) surface area supplied 70kgha super(-1) month super(-1) pig manure, 50kgha super(-1) month super(-1) N.P.K. [15:15:15] and 30kgha super(-1) month super(-1) Urea) and Treatment-C (1500m2 surface area supplied 1150kgha super(-1) month super(-1) commercial grade 40% crude protein compounded feed). Water replenishment for Treatment A was daily tidal deluge from the New Calabar River while that for treatment B and C was from column-well and occasional rains. No zooplankton species were recovered from the pig-manure only treatment (A) while only Diffugia constricta and Difflugia urceolata were the two protozoans that occurred together in treatments B (combined fertilization) and C (compounded feed only) in contrast, Difflugia acuminate and three rotifers, Collurella uncinata, Diurella stylata and Keratella quadrata occurred only treatment B. similarly, Arcella arenaria, Arcella costata, Centropyxis aculeate, Difflugia pyriformis, Branchionus calyciflorus, Lepadella patella, Polyarthra trigla and Onchocanmptus mohammedi were recovered from treatment C. Arcella costata was the most abundant zooplankton in the entire experiment, while Arcella arenaria was very abundant in treatment C, Collurella uncinata was very abundant in treatment B. The inference is that combined fertilization of earthen freshwater ponds tend to be more suitable for the culture of rotifers such as Brachionus calyciflorus, popular in fish larva nursery, while those supplied compounded feed could be used to produce protozoans where desirable
Resumo:
Lan honetan ingeles irakasleen oinarrizko prestakuntzaren inguruan azterketa bat egingo dugu. Horretarako, Suediako Stockholms Universitet eta Bilboko Irakasle Unibertsitate Eskolan eskaintzen diren bi kurtsoren arteko konparazioa burutu dugu.
Resumo:
[EUS] Ipuinak haurren egunerokotasunean erabiliak diren baliabideak dira eta hauen funtzio hezitzailea ukaezina da. Hala ere, genero berdintasunari dagokionez, ipuinek eta bertako irudien funtzioa eztabaidagarri bihurtzen da, tradizionalki genero estereotipoak transmititu dituztela eta genero jendarteratzean duten eragina kontuan izanik. Lan honetan, beraz, gaur eguneko ilustrazioek iruditegi parekideago bat sortzera bidean, genero estereotipoak transmititzen jarraitzen duten eta emakume eta gizonen eredu berriak eta anitzak eskaintzen dituzten aztertu da. Premisa horrekin, ikerketa kualitatibo baten bidez, irudiz hornituriko hiru ipuin aztertu dira. Emaitzak aztertuta, ondorioek, irudietan parekidetasuna sustatzeko aurrerapausoak egin direla argitu dute, oraindik ere zenbait estereotiporen aztarnak nabariak diren arren.
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This article explores aspects of sustainability and the importance of sustainable development, including the place of the crucially important resource of fresh water and of freshwater ecosystems. It examines the treatment of natural resources by the economic system that underpins global business, outlines some progress towards more sustainable approaches to business, and recommends steps to re-establish science as the driver of wise policies that contribute to sustainable development.
Resumo:
This paper summarises a meeting which discussed the ecology and conservation of Llangorse Lake in South Wales. The meeting was organised by the British Ecological Society (Aquatic Ecology Group), in association with the Countryside Council for Wales (CCW), Brecon Beacon National Park Authority (BBNPA) and Environment Agency Wales. It took place on 22 October 1998.
Resumo:
Bassenthwaite Lake is, in many ways, different from the other major lakes in the English Lake District: it is the most northerly, the shallowest, has the largest catchment and the shortest mean retention time. There is also considerable temporal variation in lake level. This article summarises the limnological features of Bassenthwaite Lake, the catchment and physical characteristics before describing the water chemistry, phytoplankton, macrophytes, zooplankton, invertebrates, fish, mammal and invertebrate population. The authors then describe the ecological pressures faced by Bassenthwaite Lake such as nutrients, sediments and introduced species.
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This article introduces a new listing of published scientific contributions from the Freshwater Biological Association (FBA) and its later Research Council associates – the Institute of Freshwater Ecology (1989–2000) and the Centre for Ecology and Hydrology (2000+). The period 1929–2006 is covered. The authors offer also information on specific features of the listing; also an outline of influences that underlay the research, and its scientific scope.
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For an explanation of the dynamics of numbers of chydorids, appearing a massive group in the littoral of fresh water bodies, the structure of the limbs of 29 species was studied.