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Democratic Republic of Congo - The Ramsar Convention on Wetlands
Democratic Republic of Congo - The Ramsar Convention on Wetlands

... species richness, species endemism, and ecological and evolutionary phenomena.  The knowledge base  of the workshop attendees was largely related to freshwater fish species and their distributions.   Thus,  knowledge on fish species was the largest  contributor  to  area selection;  however,  there  ...
Phenology - URPP Global Change and Biodiversity
Phenology - URPP Global Change and Biodiversity

... The  technological  and  methodological   advancements   in   environmental   remote   sensing   have   opened   a   new   avenue   for   phenological  research  (White  et  al.,  2009).  The   field   of   Land   Surface   Phenology   (LSP)   has   been  defined  as  the  study  of  seasonal  patte ...
foraging behaviour and feeding ecology of the otter lutra lutra
foraging behaviour and feeding ecology of the otter lutra lutra

Plant Responses to Multiple Environmental Factors
Plant Responses to Multiple Environmental Factors

... usually so small that absorption quickly depletes the soil in immediate contact with the roots. Only through constant and extensive growth can roots mine a sufficient volume of soil to meet the nitrogen needs of a rapidly growing plant. Unusual methods of nitrogen acquisition have additional carbon ...
Ecological Balances, Activity Based Foundation Course on
Ecological Balances, Activity Based Foundation Course on

... Mr. D.K. Malegamwala allowed the Centre both intellectual and economic freedom to select students and to experiment with innovative content and mode of interaction. After him, the project has received continued support from his successor, Dr. Suma Chitnis, Director of the J. N. Tata Endowment Trust. ...
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Emergence and maintenance of biodiversity in an evolutionary food

... the infrequent immigration of new species from a pre-determined species pool. Such models can adequately describe how smaller food webs, for example on islands, originate through the immigration of species from a mainland, but do not in general provide an adequate description of the origin of food w ...
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Staddon et al 2010

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Evaluation of alternative hypotheses to explain

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Impacts of Climate Change on Wildlife Conservation in the Samiria

... resources and their agriculture (Goulding et al. 1996). During high water seasons fishing is more difficult, since fish are dispersed throughout inundated forests. However, during this period hunting becomes easier with the large bushmeat species, such as deer, peccaries and tapir being trapped on l ...
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The Midas cichlid species complex: incipient sympatric speciation in

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AMERICAN BULLFROG FACT SHEET Rana catesbeiana

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Reverse evolution: driving forces behind

... by external factors (i.e. very low KM). Importantly, our initial assumption that mixotrophs are much less efficien t than heterotrophs grazing small bacteria due to their larger size, can be relaxed to a considerable exten t and still the conclusions from the model hold (Text SI , Fig. SI ). W e per ...
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Distinguishing between direct and indirect effects of predators in

... species loss for ecosystems and the goods and services they provide. Species at higher trophic levels are at greater risk of human-induced extinction yet remarkably little is known about the effects of consumer species loss across multiple trophic levels in natural complex ecosystems. Previous studi ...
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Spermatophores and sperm transfer in the water mite Hydrachna

... comparison сап not Ье made . Terrestrial Actinedida (= Trombidiformes) have similar spermatophores with two m embranous plates (LIPOVSKY et al., 1957; SCHUSTER & SCHUSTER, 1966). In Н. conjecta we found а maximum of 558 spermatophores deposited per 24 hours. The observations оп other water mites are ...
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Top predators in the Barents Sea, dependent on capelin?

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In situ production of charophyte communities under reduced light

... Chara aspera and C. canescens in a brackish-water ecosystem of Haapsalu Bay in June–July 2009. Plastic shades were used to manipulate light conditions in the experimental plots. Two types of nets were used so that plants received either 25% or 50% of the natural irradiance relative to the control co ...
Frog Ponds for Gardens - Natural Resources South Australia
Frog Ponds for Gardens - Natural Resources South Australia

... example, a Spotted Grass Frog in Mount Gambier has very different requirements and experiences from a Spotted Grass Frog living in the Flinders Ranges. If a Mount Gambier frog was relocated and interbred with a Flinders Ranges frog, their offspring would be greatly disadvantaged and may not survive ...
Frog Ponds for Gardens
Frog Ponds for Gardens

... example, a Spotted Grass Frog in Mount Gambier has very different requirements and experiences from a Spotted Grass Frog living in the Flinders Ranges. If a Mount Gambier frog was relocated and interbred with a Flinders Ranges frog, their offspring would be greatly disadvantaged and may not survive ...
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Deep-sea ecosystem: a world of positive biodiversity – ecosystem

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Estimating Predation Mortality with a Three

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The effects of fishing on the diversity, biomass and trophic structure

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The Biochemical Composition and Energy Content of Arctic Marine

... (73.8%) foranother species of planktonic polychaete Mauchline and Fisher (1969), reviewing the available data, tentativelyconcluded that“it is probably truethat (Tornopteris septentrionalis) from the Bering Sea. The latitudes tend to accumulate greater protein content of Sagitta elegans was also hig ...
The Future of Fish in Response to Large-Scale Change in P
The Future of Fish in Response to Large-Scale Change in P

... of which about 30 (25%) are aliens, mostly in freshwater and brackish water. About 75 species, largely marine, have been recorded from San Francisco Bay in recent years, of which only 5 are alien species (Schroeter and Moyle 2006). In Suisun Marsh and Bay, 53 species are known, a mixture of euryhali ...
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Lake ecosystem

A lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions.Lake ecosystems are a prime example of lentic ecosystems. Lentic refers to stationary or relatively still water, from the Latin lentus, which means sluggish. Lentic waters range from ponds to lakes to wetlands, and much of this article applies to lentic ecosystems in general. Lentic ecosystems can be compared with lotic ecosystems, which involve flowing terrestrial waters such as rivers and streams. Together, these two fields form the more general study area of freshwater or aquatic ecology. Lentic systems are diverse, ranging from a small, temporary rainwater pool a few inches deep to Lake Baikal, which has a maximum depth of 1740 m. The general distinction between pools/ponds and lakes is vague, but Brown states that ponds and pools have their entire bottom surfaces exposed to light, while lakes do not. In addition, some lakes become seasonally stratified (discussed in more detail below.) Ponds and pools have two regions: the pelagic open water zone, and the benthic zone, which comprises the bottom and shore regions. Since lakes have deep bottom regions not exposed to light, these systems have an additional zone, the profundal. These three areas can have very different abiotic conditions and, hence, host species that are specifically adapted to live there.
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