Search Results - "Nummi, P"

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    Compensating freshwater habitat loss—duck productivity and food resources in man-made wetlands by Čehovská, Markéta, Kattainen, S., Väänänen, V.-M., Putaala, A., Nummi, P.

    Published in European journal of wildlife research (01-06-2022)
    “…The number of wetlands in Europe decreased by more than 60% by the 1990s compared with the beginning of the twentieth century. Man-made wetlands may be an…”
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    Journal Article
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    Alien Grazing: Indirect Effects of Muskrats on Invertebrates by Nummi, P, Väänänen, V.-M, Malinen, J

    Published in Biological invasions (01-07-2006)
    “…Effects of alien herbivores on plants are quite well known, especially on oceanic islands. Much less is known about the indirect effects of alien herbivores…”
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    Recovery of the Perch (Perca Fluviatilis) in an Acidified Lake and Subsequent Responses in Macroinvertebrates and the Goldeneye (Bucephala Clangula) by Rask, M, Poeysae, H, Nummi, P, Karppinen, C

    Published in Water, air, and soil pollution (01-08-2001)
    “…The perch population of Lake Vähä Valkjärvi, a two hectare clear-water lake in southern Finland, decreased due to acid precipitation during the 1980s. During…”
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    Journal Article
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    Nesting Mallards (Anas platyrhynchos) Forecast Brood-Stage Food Limitation When Selecting Habitat: Experimental Evidence by Pöysä, Hannu, Elmberg, Johan, Sjöberg, Kjell, Nummi, Petri

    Published in Oecologia (01-03-2000)
    “…By combining and reanalysing data from two independent field experiments we explore whether food limitation at the brood stage affects habitat selection in…”
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    Journal Article
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    High overlap in diets of sympatric dabbling ducks — an effect of food abundance? by Nummi, Petri, Väänänen, Veli-Matti

    Published in Annales zoologici fennici (01-01-2001)
    “…We studied diet patterns of six sympatric dabbling ducks (Anas sp.) in wetlands with abundant invertebrates. In contrast to some earlier studies, we found no…”
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    Journal Article
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    Suitability of cerebrospinal fluid as a signal-intensity reference on MRI : evaluation of signal-intensity variations in the lumbosacral dural sac by LUOMA, E. K, RAININKO, R, NUMMI, P. J, LUUKKONEN, R, MANNINEN, H. I, RIIHIMÄKI, H. A

    Published in Neuroradiology (01-10-1997)
    “…The suitability of the cerebrospinal fluid (CSF) in the lumbosacral dural sac as an internal signal-intensity reference was studied on magnetic resonance…”
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    Journal Article
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    The beaver facilitates species richness and abundance of terrestrial and semi-aquatic mammals by Nummi, Petri, Liao, Wenfei, Huet, Ophélie, Scarpulla, Erminia, Sundell, Janne

    Published in Global ecology and conservation (01-10-2019)
    “…Beavers are ecosystem engineers which are capable to facilitate many groups of organisms. However, their facilitation of mammals has been little studied. We…”
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    Journal Article
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    The importance of beaver ponds to waterfowl broods: an experiment and natural tests by Nummi, Petri

    Published in Annales zoologici fennici (01-01-1992)
    “…The use of flooded water bodies by duck broods was studied in one simulated beaverpond and eight beaver-influenced ponds. Brood censuses were made both before…”
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    Journal Article
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    Relationships between species number, lake size and resource diversity in assemblages of breeding waterfowl by Elmberg, J, Nummi, P, Poysa, H, Sjoberg, K

    Published in Journal of biogeography (1994)
    “…Breeding waterfowl, habitat diversity and food diversity were studied in 31 boreal lakes in Finland and Sweden. Lakes were 2-48 hectares in size, and had zero…”
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    Simulated effects of the beaver on vegetation, invertebrates and ducks by Nummi, Petri

    Published in Annales zoologici fennici (01-01-1989)
    “…The effect of beaver flood on the riparian vegetation, aquatic invertebrates and waterfowl broods of a creek was studied in southern Finland in a barren…”
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    Journal Article
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    Species composition of dabbling duck assemblages: ecomorphological patterns compared with null models by Poeysae, H. (Finnish Game and Fisheries Research Inst., Evo (Finland). Evo Game Research Station), Elmberg, J, Nummi, P, Sjoeberg, K

    Published in Oecologia (01-07-1994)
    “…Ecomorphological patterns of breeding dabbling duck (Anas spp.) assemblages were studied in six regions in northern Europe. Observed spacings among species in…”
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    Journal Article
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    Pair formation among experimentally introduced mallards Anas platyrhynchos reflects habitat quality by Pöysä, Hannu, Sjöberg, Kjell, Elmberg, Johan, Nummi, Petri

    Published in Annales zoologici fennici (01-01-2001)
    “…Using data from two independent field experiments, we address whether pair formation in introduced mallards Anas platyrhynchos is associated with habitat…”
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    Journal Article
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    Acidification and ecological interactions at higher trophic levels in small forest lakes: the perch and the common goldeneye by Pöysä, Hannu, Rask, Martti, Nummi, Petri

    Published in Annales zoologici fennici (01-01-1994)
    “…The disappearance of acid sensitive fish species that usually are the most important top predators in freshwater ecosystems is an important ecological…”
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    Journal Article
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    Adolescents but not Older Women Misjudge Intelligence from Faces and Do not Consider Intelligent-Looking Men Attractive by Milonoff, Markku, Nummi, Petri

    Published in Annales zoologici fennici (30-11-2012)
    “…During human evolution, finding an intelligent mate could have resulted in more high-quality offspring via better access to resources or via “good genes”…”
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    Habitat distribution of the mallard in relation to vegetation structure, food, and population density by Nummi, P., P ys, H., Elmberg, J., Sj berg, K.

    Published in Hydrobiologia (01-04-1994)
    “…The mallard (Anas platyrhynchos Linnaeus) is a generalist feeder, breeding in a wide range of habitats, yet showing considerable between site differences in…”
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    Journal Article Conference Proceeding
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    Do Female Sex Fantasies Reflect Adaptations for Sperm Competition? by Nummi, Petri, Pellikka, Jani

    Published in Annales zoologici fennici (2012)
    “…Researchers have suggested that female strategies for sexual selection in humans include the promotion of sperm competition. Sperm competition entails the…”
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    Journal Article
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    Occurrence and density of mallard and green-winged teal in relation to prey size distribution and food abundance by Nummi, Petri, Elmberg, Johan, Pöysä, Hannu, Sjöberg, Kjell

    Published in Annales zoologici fennici (01-01-1995)
    “…We studied patterns of prey size and abundance among 60 lakes that differed with respect to occupancy by mallards (Anas platyrhynchos) and teal (A. crecca…”
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    Journal Article
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    Effect of motion on the sonographic and magnetic resonance patterns of ageing blood by Alanen, A, Nummi, P

    Published in Acta radiologica. Diagnosis (01-07-1986)
    “…The sonographic appearance of a hematoma may be affected by various factors, including the age of the hematoma. The effect of mechanical motion on the…”
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