Uganda - BirdLife Data Zone
... of the numerous lakes. There are 10 globally threatened species, all in the Vulnerable category, as well as two Data Deficient species and some 17 globally near-threatened species (Collar et al. 1994). The presence in Uganda of three of these species—Eremomela turneri, Coracina graueri and Kupeornis ...
... of the numerous lakes. There are 10 globally threatened species, all in the Vulnerable category, as well as two Data Deficient species and some 17 globally near-threatened species (Collar et al. 1994). The presence in Uganda of three of these species—Eremomela turneri, Coracina graueri and Kupeornis ...
The potential role of ecological corridors for habitat conservation in
... adequate genetic exchange. This will rarely be detectable by sampling for migrant individuals. Dispersal monitoring aimed at assessing whether genetic interchange is adequate is therefore only likely to be successful at levels of interchange far above critical levels. Genetic analysis of isolated po ...
... adequate genetic exchange. This will rarely be detectable by sampling for migrant individuals. Dispersal monitoring aimed at assessing whether genetic interchange is adequate is therefore only likely to be successful at levels of interchange far above critical levels. Genetic analysis of isolated po ...
"SPOTTED HYENAS: MISUNDERSTOOD INDICATORS OFF
... specialised for cracking open large bones, granting them access to the nutrientand fat-rich marrow that is inaccessible to other carnivores. Furthermore, although they prefer to eat antelope, hyenas thrive on a wide diversity of prey species ranging from termites to elephants. Spotted hyenas also br ...
... specialised for cracking open large bones, granting them access to the nutrientand fat-rich marrow that is inaccessible to other carnivores. Furthermore, although they prefer to eat antelope, hyenas thrive on a wide diversity of prey species ranging from termites to elephants. Spotted hyenas also br ...
Soil water content and emergence time control seedling
... culled through flotation. Selected acorns were stored on a moist vermiculite bed in plastic trays at 2–4 8C until used in the experiment; they were individually weighed to the nearest 0.01 g. Mean ± SD acorn fresh mass (grams) was 4.36 ± 1.63 g for Q. suber, 4.48 ± 1.38 g for Q. canariensis, and 5.5 ...
... culled through flotation. Selected acorns were stored on a moist vermiculite bed in plastic trays at 2–4 8C until used in the experiment; they were individually weighed to the nearest 0.01 g. Mean ± SD acorn fresh mass (grams) was 4.36 ± 1.63 g for Q. suber, 4.48 ± 1.38 g for Q. canariensis, and 5.5 ...
Insect Signature Indicating Corpse Movement from Urban to Rural
... In a paper published in 1965, Payne explained the details of the successional changes that occurred during the decomposition of pig carcasses that were either protected or exposed to insects (Payne, 1965). Payne’s studies on insect succession introduced a system which identifies six stages of decomp ...
... In a paper published in 1965, Payne explained the details of the successional changes that occurred during the decomposition of pig carcasses that were either protected or exposed to insects (Payne, 1965). Payne’s studies on insect succession introduced a system which identifies six stages of decomp ...
establishment by invasive, naturalized, and native asters reflects
... mineral soil in late July. As part of a larger study, subplots were assigned to one of three treatments: native seed addition, exotic seed addition, or control subplots where no seeds were added. Seed addition subplots received either 20 species of native plant seeds or 19 species of exotic plant se ...
... mineral soil in late July. As part of a larger study, subplots were assigned to one of three treatments: native seed addition, exotic seed addition, or control subplots where no seeds were added. Seed addition subplots received either 20 species of native plant seeds or 19 species of exotic plant se ...
- University of Alberta
... lurida (Middendorif, 1849) revealed several interesting features about the feeding biology of this rather enigmatic predatory neogastropod. (1) Unlike the more common drilling gastropods in the northeastern Pacific, 0. lurida preyed most heavily upon limpets: of 231 feeding observations, 55.0% were ...
... lurida (Middendorif, 1849) revealed several interesting features about the feeding biology of this rather enigmatic predatory neogastropod. (1) Unlike the more common drilling gastropods in the northeastern Pacific, 0. lurida preyed most heavily upon limpets: of 231 feeding observations, 55.0% were ...
Ecological Effects of Invasive Arthropod Generalist Predators
... diversity typical of invasion by these species, ants are too similar genetically for soldiers to differentiate between members of their own versus a different colony (Ross et al. 1996, Tsutsui et al. 2000). With intraspecific aggression thereby eliminated, ants achieve far higher densities than are s ...
... diversity typical of invasion by these species, ants are too similar genetically for soldiers to differentiate between members of their own versus a different colony (Ross et al. 1996, Tsutsui et al. 2000). With intraspecific aggression thereby eliminated, ants achieve far higher densities than are s ...
Do changes in berry crops drive population fluctuations in small C
... are meant to provide an index of berry production to measure year to year changes in berry counts. All these plants have berries of approximately the same size. Plant cover was estimated for all species, and all ground berries within the plots were counted while still green, typically in early to mi ...
... are meant to provide an index of berry production to measure year to year changes in berry counts. All these plants have berries of approximately the same size. Plant cover was estimated for all species, and all ground berries within the plots were counted while still green, typically in early to mi ...
character release following extinction in a caribbean reef
... extends back to at least late Miocene time. It is distinguished by circular corallites having three complete septal cycles (sometimes an incomplete fourth cycle) and corallite diameters less than 3.2 mm. Primary and secondary septa are generally equal in thickness, and if present, paliform lobes are ...
... extends back to at least late Miocene time. It is distinguished by circular corallites having three complete septal cycles (sometimes an incomplete fourth cycle) and corallite diameters less than 3.2 mm. Primary and secondary septa are generally equal in thickness, and if present, paliform lobes are ...
x X - Mississippi State University Extension Service
... wildlife species. This manual has been edited from the original national version found at www.WHEP.org and contains only the regional information that is relevant to the Mississippi contests. Students attending the national contest will need to obtain and study the material relevant to the ecoregion ...
... wildlife species. This manual has been edited from the original national version found at www.WHEP.org and contains only the regional information that is relevant to the Mississippi contests. Students attending the national contest will need to obtain and study the material relevant to the ecoregion ...
Deer Mouse Preference for Seed of Commonly Planted Species
... Food choices were provided “cafeteria style” to each mouse in its individual cage. Seed or other food was placed in individual cubicles of a 12-cube ice tray. Food choices were kept separate and placement was made at random within the tray. We assumed that each mouse would make a large number of ind ...
... Food choices were provided “cafeteria style” to each mouse in its individual cage. Seed or other food was placed in individual cubicles of a 12-cube ice tray. Food choices were kept separate and placement was made at random within the tray. We assumed that each mouse would make a large number of ind ...
Also available as free
... Kazakhstan where he and a small team have focussed upon the area of the Aral Sea. Dr. Aladin’s studies were performed during a period of change, both in the patterns of organismic assemblages and in the political structure of his country. These studies were undertaken in his own time and at his own ...
... Kazakhstan where he and a small team have focussed upon the area of the Aral Sea. Dr. Aladin’s studies were performed during a period of change, both in the patterns of organismic assemblages and in the political structure of his country. These studies were undertaken in his own time and at his own ...
Wildlife Populations in the Pacaya
... The large seasonal inundations that annually occur along the immense floodplains of the Pacaya‐Samiria rivers are a result of rainfall in the foothills of the Andes. During the summer months of October to May precipitation off of the Pacific Ocean is pushed over the Andes by the strong uplifting ...
... The large seasonal inundations that annually occur along the immense floodplains of the Pacaya‐Samiria rivers are a result of rainfall in the foothills of the Andes. During the summer months of October to May precipitation off of the Pacific Ocean is pushed over the Andes by the strong uplifting ...
Effects of some natural and artificial substrata on sessile marine
... 3 mo. I could not use natural mangrove wood in the experiment because the roots and trunks of the trees at the water's edge (which were the appropriate ones to use) were too small to cut into plates (results, therefore, do not apply to mangrove roots or trunks). Concrete plates were cut from 'besser ...
... 3 mo. I could not use natural mangrove wood in the experiment because the roots and trunks of the trees at the water's edge (which were the appropriate ones to use) were too small to cut into plates (results, therefore, do not apply to mangrove roots or trunks). Concrete plates were cut from 'besser ...
ASSESSING THE IMPACT OF SOFT-WATER CALCIUM DECLINE ON THE LIFE- DAPHNIA
... calcified exoskeletons, known as carapaces. Rather than reabsorbing Ca from their carapace prior to molting, Daphnia acquire aqueous calcium to rebuild their carapace (Hessen et al. 2000; Wheatly 1999). A single molt event has been shown to result in a 90 percent loss of an individual’s calcium cont ...
... calcified exoskeletons, known as carapaces. Rather than reabsorbing Ca from their carapace prior to molting, Daphnia acquire aqueous calcium to rebuild their carapace (Hessen et al. 2000; Wheatly 1999). A single molt event has been shown to result in a 90 percent loss of an individual’s calcium cont ...
Evolution of Lake Malawi Cichlid Fishes (Perciformes: Teleostei)
... Turner 1994) modes of speciation have been suggested. There is general consensus that almost all of the endemic cichlid species and genera of Malawi and Victoria originated within the lakes proper (Mayr 1984); intralacustrine speciation is extensive in Tanganyika, though this lake was clearly seeded ...
... Turner 1994) modes of speciation have been suggested. There is general consensus that almost all of the endemic cichlid species and genera of Malawi and Victoria originated within the lakes proper (Mayr 1984); intralacustrine speciation is extensive in Tanganyika, though this lake was clearly seeded ...
Advancing the science of microbial symbiosis to
... are restricted to subterranean organs and tissues. Endophytic microbes most commonly live exclusively within a plant in a biotrophic mode, obtaining their nutrition solely from the plant. As a result, many endophytic microbes form obligate associations with plants, most often inside the plant host b ...
... are restricted to subterranean organs and tissues. Endophytic microbes most commonly live exclusively within a plant in a biotrophic mode, obtaining their nutrition solely from the plant. As a result, many endophytic microbes form obligate associations with plants, most often inside the plant host b ...
A global overview on the diet of the dice snake
... least 29 and 15 species, respectively. On the basis of our data and the literature altogether, 113 prey taxa, mostly fish, were listed but 20% of them were invertebrates, amphibians, reptiles and mammals. The importance of non-fish species in the diet was especially pronounced in deserts, high mount ...
... least 29 and 15 species, respectively. On the basis of our data and the literature altogether, 113 prey taxa, mostly fish, were listed but 20% of them were invertebrates, amphibians, reptiles and mammals. The importance of non-fish species in the diet was especially pronounced in deserts, high mount ...
Owl winter irruptions as an indicator of small mammal population
... boreal forest are well documented in Fennoscandia (Mysterud 1970, Korpimäki 1986, Sonerud et al. 1988), where they happen during periods of low abundance of small mammals within their usual distribution range (Mikkola 1983). In this case, owls react to a lack of prey in the north by massively movin ...
... boreal forest are well documented in Fennoscandia (Mysterud 1970, Korpimäki 1986, Sonerud et al. 1988), where they happen during periods of low abundance of small mammals within their usual distribution range (Mikkola 1983). In this case, owls react to a lack of prey in the north by massively movin ...
Transformations - NSDL Project Archive
... other salticids. P. fimbriata also eat insects and the eggs of other spiders. •P. fimbriata are predatory, and they use several methods of predation. One is aggressive vibratory mimicry, in which P. fimbriata climb on to the web of their victim and use their legs and palps to pluck signals on the we ...
... other salticids. P. fimbriata also eat insects and the eggs of other spiders. •P. fimbriata are predatory, and they use several methods of predation. One is aggressive vibratory mimicry, in which P. fimbriata climb on to the web of their victim and use their legs and palps to pluck signals on the we ...
Full Issue, Vol. 65 No. 2 - BYU ScholarsArchive
... Creek, the type locality, consists of narrow rivulets where trickling water passes through alkali-encrusted soil. This area is conspicuous due to the lack of vegetation and to the alkali encrustations that make the soil covering completely white (Fig. 2), creating blinding reflections during periods ...
... Creek, the type locality, consists of narrow rivulets where trickling water passes through alkali-encrusted soil. This area is conspicuous due to the lack of vegetation and to the alkali encrustations that make the soil covering completely white (Fig. 2), creating blinding reflections during periods ...
Scientific Canadian
... Department of Earth and Ocean Sciences. “Historically, jellyfish have slipped through the cracks,” says Brotz. “They were perceived as an unimportant nuisance to fisheries scientists, yet they are too big to be studied by planktologists. But we now know that they’re very important in the marine ecos ...
... Department of Earth and Ocean Sciences. “Historically, jellyfish have slipped through the cracks,” says Brotz. “They were perceived as an unimportant nuisance to fisheries scientists, yet they are too big to be studied by planktologists. But we now know that they’re very important in the marine ecos ...
INTRODUCTION Definition and meaning, guiding principles
... Over exploitation and utilization leads to threats of habitat destruction and species extinction. Tropical forests have 50% of the world-estimated biodiversity. Yet we know little of the structure and functioning of such systems. It was only in 1972 that the Tasaday tribe in the Philippines was dis ...
... Over exploitation and utilization leads to threats of habitat destruction and species extinction. Tropical forests have 50% of the world-estimated biodiversity. Yet we know little of the structure and functioning of such systems. It was only in 1972 that the Tasaday tribe in the Philippines was dis ...
Prey abundance and habitat use by migratory shorebirds at coastal
... at Milford, Stratford, and West Haven, respectively. These differences in invertebrate diversity and abundance were supported by ShannonWeiner diversity indices calculated for each site; Milford exhibited the greatest diversity (H 5 1.16) followed by Stratford (H 5 0.91) and then West Haven (H 5 0.8 ...
... at Milford, Stratford, and West Haven, respectively. These differences in invertebrate diversity and abundance were supported by ShannonWeiner diversity indices calculated for each site; Milford exhibited the greatest diversity (H 5 1.16) followed by Stratford (H 5 0.91) and then West Haven (H 5 0.8 ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.