High value plant (HVPS) Colophospermum mopane
... August 2007. This database is freely available to members of the public. SEPASAL is a database and enquiry service about useful "wild" and semi-domesticated plants of tropical and subtropical drylands, developed and maintained at the Royal Botanic Gardens, Kew. "Useful" includes plants which humans ...
... August 2007. This database is freely available to members of the public. SEPASAL is a database and enquiry service about useful "wild" and semi-domesticated plants of tropical and subtropical drylands, developed and maintained at the Royal Botanic Gardens, Kew. "Useful" includes plants which humans ...
Temporal dynamics in non-additive responses of arthropods to host
... Genotypic diversity within host-plant populations has been linked to the diversity of associated arthropod communities, but the temporal dynamics of this relationship, along with the underlying mechanisms, are not well understood. In this study, we employed a common garden experiment that manipulate ...
... Genotypic diversity within host-plant populations has been linked to the diversity of associated arthropod communities, but the temporal dynamics of this relationship, along with the underlying mechanisms, are not well understood. In this study, we employed a common garden experiment that manipulate ...
the kinematics of swimming in anuran larvae
... of anuran larval locomotion. We examine tadpoles of several species that differ in size and shape. Our goals are: (1) to understand how the size and shape of tadpoles relate to their kinematics and (2) to compare the kinematics of swimming in tadpoles with that of fishes. We do not explore either th ...
... of anuran larval locomotion. We examine tadpoles of several species that differ in size and shape. Our goals are: (1) to understand how the size and shape of tadpoles relate to their kinematics and (2) to compare the kinematics of swimming in tadpoles with that of fishes. We do not explore either th ...
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... out of reach of oystercatchers on vertical surfaces, whereas 'C.' scabra predominate on horizontal surfaces and vertical rock faces within oystercatcher reach. This difference in distribution correlates well with preference exhibited by foraging oystercatchers in that 'C.' scabra is neglected relati ...
... out of reach of oystercatchers on vertical surfaces, whereas 'C.' scabra predominate on horizontal surfaces and vertical rock faces within oystercatcher reach. This difference in distribution correlates well with preference exhibited by foraging oystercatchers in that 'C.' scabra is neglected relati ...
Photobiological Aspects of the Mutualistic Association Between
... other ciliates such as Coleps sp. have confirmed this observation (Görtz 1988; Stabell et al. 2002). For example, when food is abundant, the growth rates of symbiotic and aposymbiotic Coleps sp. are not significantly different. Stabell et al. (2002) found that the gross growth rate of endosymbiotic ...
... other ciliates such as Coleps sp. have confirmed this observation (Görtz 1988; Stabell et al. 2002). For example, when food is abundant, the growth rates of symbiotic and aposymbiotic Coleps sp. are not significantly different. Stabell et al. (2002) found that the gross growth rate of endosymbiotic ...
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... an estuary was not noticeably influenced by temperature or salinity and was maintained during the wet season when water was flowing downstream for several weeks, i.e. catches were dependent on tide height rather than current direction. In this study, therefore, cycles of hydrostatic pressure were us ...
... an estuary was not noticeably influenced by temperature or salinity and was maintained during the wet season when water was flowing downstream for several weeks, i.e. catches were dependent on tide height rather than current direction. In this study, therefore, cycles of hydrostatic pressure were us ...
Richness–productivity relationships between trophic levels in a
... richness values within each tree hole. In constructing trophic levels, we acknowledge that all protozoans may not be equally edible to invertebrates, although none of the invertebrates is susceptible to predation by protozoans. Protozoan populations are negatively aVected by mosquitoes (the dominant ...
... richness values within each tree hole. In constructing trophic levels, we acknowledge that all protozoans may not be equally edible to invertebrates, although none of the invertebrates is susceptible to predation by protozoans. Protozoan populations are negatively aVected by mosquitoes (the dominant ...
heavily citing
... are actually windows into the past, or conversely, are more recent adaptations of a once shallow water organism to deeper water habitats of at least 300 m. In such depths, excellent chemosensory reception would be far more advantageous than vision. In addition, if mode of life changed from active pr ...
... are actually windows into the past, or conversely, are more recent adaptations of a once shallow water organism to deeper water habitats of at least 300 m. In such depths, excellent chemosensory reception would be far more advantageous than vision. In addition, if mode of life changed from active pr ...
Experimental demonstration of a trophic cascade in the Gal#_#
... density (Density Mediated Indirect Interactions DMII), behavior (Behaviorally Mediated Indirect Interactions, BMII), and diversity [4–8]. The complexity of tropical and sub-tropical food webs, which includes intraguild predation, compensatory dynamics, and many interacting species, has been presumed ...
... density (Density Mediated Indirect Interactions DMII), behavior (Behaviorally Mediated Indirect Interactions, BMII), and diversity [4–8]. The complexity of tropical and sub-tropical food webs, which includes intraguild predation, compensatory dynamics, and many interacting species, has been presumed ...
The Zoogeography of Mammalian Basal Metabolic Rate
... Brown et al. (1993) and Kozłowski and Weiner (1997), highlight the dichotomous views on the functional dependence of physiological traits on body size. Brown et al. (1993) predict that a single, optimal taxonspecific body mass can be determined by the rate of resource acquisition from the environmen ...
... Brown et al. (1993) and Kozłowski and Weiner (1997), highlight the dichotomous views on the functional dependence of physiological traits on body size. Brown et al. (1993) predict that a single, optimal taxonspecific body mass can be determined by the rate of resource acquisition from the environmen ...
Dowload An inventory and assessment of anchialine pools in Hawaii Volcanoes National Park
... The eight sites are: Waha'ula cave (Fig. 2); two separate complexes between 'Apua point and Keauhou Point (Fig. 3); Halape crack and Boulder Bay (Fig. 4); Kalahacrack; and Kalu'e crack (Fig. 4). A pool at Waha'ula nature trail and the pool within Kalu'e crack were only superficially surveyed. The Wa ...
... The eight sites are: Waha'ula cave (Fig. 2); two separate complexes between 'Apua point and Keauhou Point (Fig. 3); Halape crack and Boulder Bay (Fig. 4); Kalahacrack; and Kalu'e crack (Fig. 4). A pool at Waha'ula nature trail and the pool within Kalu'e crack were only superficially surveyed. The Wa ...
How do generalist consumers coexist over evolutionary time? An
... for these resources degrades diversity. On the other hand, antagonistic resources can lead to character divergence. Due to the nutritional penalty for consuming both resources, a generalist consumer leaves behind enough resources for more specialized strategies to invade and outcompete it. Therefore ...
... for these resources degrades diversity. On the other hand, antagonistic resources can lead to character divergence. Due to the nutritional penalty for consuming both resources, a generalist consumer leaves behind enough resources for more specialized strategies to invade and outcompete it. Therefore ...
How top consumers structure food webs with multiple pathways of
... Natural food webs are highly complex systems, however, this complexity arises from simple consumer-resource interactions. Feeding interactions not only determine food web structure but constitute the building blocks of the pathways of energy flow to higher trophic levels. Our understanding of how to ...
... Natural food webs are highly complex systems, however, this complexity arises from simple consumer-resource interactions. Feeding interactions not only determine food web structure but constitute the building blocks of the pathways of energy flow to higher trophic levels. Our understanding of how to ...
Rainforest Regrowth Benefits
... species that are intolerant of shade may germinate from the soil, triggered by increased light and heat. Pioneer species tend to be short-lived, so other tree species that are tolerant of shade (‘climax’ or ...
... species that are intolerant of shade may germinate from the soil, triggered by increased light and heat. Pioneer species tend to be short-lived, so other tree species that are tolerant of shade (‘climax’ or ...
Population-Level Metrics of Trophic Structure Based on
... Biological invasions are a significant driver of human-induced global change and many ecosystems sustain sympatric invaders. Interactions occurring among these invaders have important implications for ecosystem structure and functioning, yet they are poorly understood. Here we apply newly developed ...
... Biological invasions are a significant driver of human-induced global change and many ecosystems sustain sympatric invaders. Interactions occurring among these invaders have important implications for ecosystem structure and functioning, yet they are poorly understood. Here we apply newly developed ...
NITROGEN BUDGETS OF PHLOEM
... frontalis. Samples from each infested tree were drawn from each of four mutually exclusive phloem classes (Fig. 1): (1) within 7 mm of adult galleries with successful brood (5 good brood); (2) within 7 mm of adult galleries with unsuccessful brood (5 failed brood); (3) separated from adult and larva ...
... frontalis. Samples from each infested tree were drawn from each of four mutually exclusive phloem classes (Fig. 1): (1) within 7 mm of adult galleries with successful brood (5 good brood); (2) within 7 mm of adult galleries with unsuccessful brood (5 failed brood); (3) separated from adult and larva ...
FE_2006 - studylib.net
... Fedriani 2005; Herrera 2005). To control for the potential effects of these factors and thus isolate the effect of fruit ripening on foraging by mice, fruits were offered in standardized food patches or ‘artificial plants’ that differed in the ripening stage of offered fruits, but were otherwise vir ...
... Fedriani 2005; Herrera 2005). To control for the potential effects of these factors and thus isolate the effect of fruit ripening on foraging by mice, fruits were offered in standardized food patches or ‘artificial plants’ that differed in the ripening stage of offered fruits, but were otherwise vir ...
Siliceous spicules and skeleton frameworks in sponges: Origin
... Whether secretion of spicules in sponges is intra- or extracellular is controversial. Microscleres are mostly secreted intracellularly (e.g., Custódio et al., 2002) with only one known exception (Simpson, 1968). Similarly, several studies support intracellular secretion of megascleres (Garrone, 196 ...
... Whether secretion of spicules in sponges is intra- or extracellular is controversial. Microscleres are mostly secreted intracellularly (e.g., Custódio et al., 2002) with only one known exception (Simpson, 1968). Similarly, several studies support intracellular secretion of megascleres (Garrone, 196 ...
Human impacts on how savanna plants interact through fire, resources,... A Dissertation SUBMITTED TO THE FACULTY OF
... acknowledged. Opinions expressed and conclusions arrived at, are those of the author and are not necessarily to be attributed to the NRF. I was supported, in part, by a Scholarship for Doctoral Study Abroad from the South African National Research Foundation. I was also supported by a Graduate Schoo ...
... acknowledged. Opinions expressed and conclusions arrived at, are those of the author and are not necessarily to be attributed to the NRF. I was supported, in part, by a Scholarship for Doctoral Study Abroad from the South African National Research Foundation. I was also supported by a Graduate Schoo ...
paper01 1..5
... or from the more easily observable domestic cat (Leyhausen, 1979; Turner & Bateson, 1988). However, environmental conditions experienced by felids in the wild may be very different from those experienced in captivity, which could alter or mask certain behaviours. Unfortunately almost all cat species ...
... or from the more easily observable domestic cat (Leyhausen, 1979; Turner & Bateson, 1988). However, environmental conditions experienced by felids in the wild may be very different from those experienced in captivity, which could alter or mask certain behaviours. Unfortunately almost all cat species ...
Interspecific Competition Between Two Invasive Species of
... competition, and potential shifts of competitive advantage in different parts of their worldwide ranges are unknown, but variation due to intraspeciÞc or environmental differences is possible. In the current study, we measured the performance of larvae of Brazilian populations of A. albopictus and A ...
... competition, and potential shifts of competitive advantage in different parts of their worldwide ranges are unknown, but variation due to intraspeciÞc or environmental differences is possible. In the current study, we measured the performance of larvae of Brazilian populations of A. albopictus and A ...
do similar communities develop in similar sites? a test
... sites due to historical factors (colonization, disturbance, etc.). We asked ‘‘Do similar zooplankton communities develop in similar ponds?’’ We compared zooplankton community structure and function in 12 newly constructed experimental ponds during 1 yr of natural colonization and analyzed a suite of ...
... sites due to historical factors (colonization, disturbance, etc.). We asked ‘‘Do similar zooplankton communities develop in similar ponds?’’ We compared zooplankton community structure and function in 12 newly constructed experimental ponds during 1 yr of natural colonization and analyzed a suite of ...
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... ABSTRACT An experimental study of the effects of otter trawling was conducted in a deep (120 to 146 m) sandy bottom ecosystem of the Grand Banks of Newfoundland from 1993 to 1995. Each year, three 13 km long corridors were trawled 12 times within 31 to 34 h with an Engel 145 otter trawl equipped \nt ...
... ABSTRACT An experimental study of the effects of otter trawling was conducted in a deep (120 to 146 m) sandy bottom ecosystem of the Grand Banks of Newfoundland from 1993 to 1995. Each year, three 13 km long corridors were trawled 12 times within 31 to 34 h with an Engel 145 otter trawl equipped \nt ...
Freshwater Algae: Identification and Use as Bioindicators
... where they are frequently present in mixed biofilms (with bacteria, fungi and invertebrates also present). Under high light conditions, the biofilm may become dominated by extensive growths of filamentous algae – forming a periphyton community (Fig. 2.23). Attached algae may also be fixed to living ...
... where they are frequently present in mixed biofilms (with bacteria, fungi and invertebrates also present). Under high light conditions, the biofilm may become dominated by extensive growths of filamentous algae – forming a periphyton community (Fig. 2.23). Attached algae may also be fixed to living ...
Conservation of Spiders (Araneae) in the Western Australian
... evenness, along with marked changes in composition of spiders with increasing postfire age. For all three measures, the assemblage appears highly deterministic, converging towards the long unburnt state. Similarity in richness, evenness and species composition to the 20-year-old sites all increased ...
... evenness, along with marked changes in composition of spiders with increasing postfire age. For all three measures, the assemblage appears highly deterministic, converging towards the long unburnt state. Similarity in richness, evenness and species composition to the 20-year-old sites all increased ...
Ficus rubiginosa
Ficus rubiginosa, the rusty fig, Port Jackson fig, or little-leaf fig (damun in the Sydney language) is a species of flowering plant in the family Moraceae that is native to eastern Australia. It is a banyan of the genus Ficus which contains around 750 species worldwide in warm climates, including the common fig (Ficus carica). Ficus rubiginosa can grow to 30 m (100 ft) high and nearly as wide with a buttressed trunk, and glossy green leaves.