Biodiversity and Ecosystem Functioning: Basic
... ‘Does biodiversity matter for the functioning of ecosystems?’ or ‘Does it make any difference to the processes within an ecosystem if there are many or only a few species?’ These are the central questions that arise when one is looking at the many ecosystems on earth differing very much in their bio ...
... ‘Does biodiversity matter for the functioning of ecosystems?’ or ‘Does it make any difference to the processes within an ecosystem if there are many or only a few species?’ These are the central questions that arise when one is looking at the many ecosystems on earth differing very much in their bio ...
Functional and phylogenetic diversity of woody plants drive
... both functional and phylogenetic data, calculated for single as well as multiple traits, and weighted by abundance data (Schleuter et al., 2010; Pavoine & Bonsall, 2011). It thus enables a comparison between different facets of diversity using a consistent statistical framework (Pavoine & Bonsall, 2 ...
... both functional and phylogenetic data, calculated for single as well as multiple traits, and weighted by abundance data (Schleuter et al., 2010; Pavoine & Bonsall, 2011). It thus enables a comparison between different facets of diversity using a consistent statistical framework (Pavoine & Bonsall, 2 ...
Türk
... These snail species were Helix aspersa Müller (Pulmonata: Helicidae), Monacha syriaca Ehrenberg (Pulmonata: Hygromiidae) and Zebrina eburnea Pfeiffer (Pulmonata: Enidae). Megaselia scalaris pupae were recovered also inside abdomen of an A. arenaria female in the laboratory cultures. M. scalaris had ...
... These snail species were Helix aspersa Müller (Pulmonata: Helicidae), Monacha syriaca Ehrenberg (Pulmonata: Hygromiidae) and Zebrina eburnea Pfeiffer (Pulmonata: Enidae). Megaselia scalaris pupae were recovered also inside abdomen of an A. arenaria female in the laboratory cultures. M. scalaris had ...
Comparing small mammal faunas based on barn owl (Tyto alba
... In the mesoregional spatial scale the statistical evaluation of small mammal abundances based on local detailed data (relating to breeding pairs) showed significant difference for 8 species (Table 2). The relative abundance of the four featured shrew species in two mesoregions showed that significan ...
... In the mesoregional spatial scale the statistical evaluation of small mammal abundances based on local detailed data (relating to breeding pairs) showed significant difference for 8 species (Table 2). The relative abundance of the four featured shrew species in two mesoregions showed that significan ...
An intercontinental comparison of the dynamic
... production in eastern deciduous forests has seldom been examined, data from the literature and work on California oaks suggest that geographical synchrony within species is probably considerable, on the order of at least several hundred kilometers (Koenig et al. 1999; Koenig and Knops 2000). Synchro ...
... production in eastern deciduous forests has seldom been examined, data from the literature and work on California oaks suggest that geographical synchrony within species is probably considerable, on the order of at least several hundred kilometers (Koenig et al. 1999; Koenig and Knops 2000). Synchro ...
Microbial interactions: from networks to models
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
Ecosystems in Action: Lessons from Marine Ecology about Recovery
... Resistance to ecological change is usually studied in its absence, when a system finally changes in the face of ecosystem alteration. These studies often show that change occurs more quickly when ecological redundancy is low and the ecological role of key species cannot be replaced by other species ...
... Resistance to ecological change is usually studied in its absence, when a system finally changes in the face of ecosystem alteration. These studies often show that change occurs more quickly when ecological redundancy is low and the ecological role of key species cannot be replaced by other species ...
Toward a Better Integration of Ecological
... (figure 2), presumably because of the increased flow turbulence created by a more topographically complex surface from the different shapes and sizes of mussel species and species differences in burrowing depth. Therefore, after measuring a physical process occurring in the presence of one of three ...
... (figure 2), presumably because of the increased flow turbulence created by a more topographically complex surface from the different shapes and sizes of mussel species and species differences in burrowing depth. Therefore, after measuring a physical process occurring in the presence of one of three ...
Forest-Rangeland Ecotones in the Highlands of Balochistan, Pakistan
... pastoralists, including changes in the length and timing of the plant growing season and changes in the amount and seasonal pattern of precipitation. Rangeland-based adaptation strategies, such as seasonal grassland reserves, revival of traditional grazing systems, and development of forage reserves ...
... pastoralists, including changes in the length and timing of the plant growing season and changes in the amount and seasonal pattern of precipitation. Rangeland-based adaptation strategies, such as seasonal grassland reserves, revival of traditional grazing systems, and development of forage reserves ...
Quantifying the Contribution of Organisms to the Provision of
... identified, and that the rate of service delivery can vary but may need to meet some base level defined by service beneficiaries (e.g., financial profits attributable to service provision are above a given threshold). Put simply, we wish to know which sections of society use the service and at what ...
... identified, and that the rate of service delivery can vary but may need to meet some base level defined by service beneficiaries (e.g., financial profits attributable to service provision are above a given threshold). Put simply, we wish to know which sections of society use the service and at what ...
Designing suburban greenways to provide habitat for
... count center was located at the approximate center of the greenway segment’s forested corridor because our goal was to detect any forest-interior specialist species in the greenway. Counts in wider greenways did not sample edge habitat and likely provided poor measures of edge-dwelling birds there. ...
... count center was located at the approximate center of the greenway segment’s forested corridor because our goal was to detect any forest-interior specialist species in the greenway. Counts in wider greenways did not sample edge habitat and likely provided poor measures of edge-dwelling birds there. ...
Progress
... This report details the science in the Species-Rich Grassland Assessment Unit (AU) and its relevance to MAFF. The report is based on the second year of activity of the Programme Advisor, Valerie Brown, in respect of Terms of Reference developed by MAFF. The AU aims to develop practical, cost-effecti ...
... This report details the science in the Species-Rich Grassland Assessment Unit (AU) and its relevance to MAFF. The report is based on the second year of activity of the Programme Advisor, Valerie Brown, in respect of Terms of Reference developed by MAFF. The AU aims to develop practical, cost-effecti ...
Wulff 2005l - FSU Biology
... bites in 130 bouts of uninterrupted feeding, angelfish always consumed fewer than eight bites of one species before switching, except for five bouts of feeding on T. ignis or B. caribea, which continued for from 12 to 31 bites. These species were the first to be consumed entirely in every trial. The ...
... bites in 130 bouts of uninterrupted feeding, angelfish always consumed fewer than eight bites of one species before switching, except for five bouts of feeding on T. ignis or B. caribea, which continued for from 12 to 31 bites. These species were the first to be consumed entirely in every trial. The ...
Snags, Coarse Woody Debris, and Wildlife
... studies revealed that to retain viable populations of cavity nesters, about four snags greater than 10 inches in diameter were needed on a per acre basis with about two of these greater than 20 inches in diameter. Numbers were similar but slightly higher on the westside. Variation in height, di ...
... studies revealed that to retain viable populations of cavity nesters, about four snags greater than 10 inches in diameter were needed on a per acre basis with about two of these greater than 20 inches in diameter. Numbers were similar but slightly higher on the westside. Variation in height, di ...
Observations On Environmental Change in South Africa
... and easily readable book on the causes consequences and responses to environmental changes in South Africa’, its scientific nature became much more prominent. We now have a publication ‘... conveying scientific evidence based on local case studies using examples to graphically illustrate these trend ...
... and easily readable book on the causes consequences and responses to environmental changes in South Africa’, its scientific nature became much more prominent. We now have a publication ‘... conveying scientific evidence based on local case studies using examples to graphically illustrate these trend ...
Loss of Diversification of fish species in Meerut region: A... to natural fauna Shobhna , Manu varma
... Bacterial, Viral, Fungal and Protozoan diseases Introduction of Exotic species Fishes are source of good quality protein that we can easily and completely digest. In addition, fishes are also excellent sources of polyunsaturated fatty acids. The status of health depends on the fish’s genetic com ...
... Bacterial, Viral, Fungal and Protozoan diseases Introduction of Exotic species Fishes are source of good quality protein that we can easily and completely digest. In addition, fishes are also excellent sources of polyunsaturated fatty acids. The status of health depends on the fish’s genetic com ...
Charles J. (Jay) Cole and Carol R. Townsend Herpetological
... The work continues this summer. I observed many dead frogs this winter, presumably chytrid-killed, although all were in the upper canyon. We have installed i-buttons in several pools in the canyon to get a temperature profile and an idea of the degree of difference between the areas with and without ...
... The work continues this summer. I observed many dead frogs this winter, presumably chytrid-killed, although all were in the upper canyon. We have installed i-buttons in several pools in the canyon to get a temperature profile and an idea of the degree of difference between the areas with and without ...
Netted Chain Fern - Woodwardia areolata
... (fronds) 40 to 60 cm (15 to 24 in.) tall that produces two different types (dimorphic) of fronds. The vegetative or sterile fronds are pinnately compound with alternately arranged leaflets (pinnae). Veins are arranged in chain-like patterns on the pinnae, hence the common name, netted chain fern. Fe ...
... (fronds) 40 to 60 cm (15 to 24 in.) tall that produces two different types (dimorphic) of fronds. The vegetative or sterile fronds are pinnately compound with alternately arranged leaflets (pinnae). Veins are arranged in chain-like patterns on the pinnae, hence the common name, netted chain fern. Fe ...
Ecological Risk Assessment of Genetically Modified Higher Plants
... plant. At this level it must be found and argued which species groups are likely to be exposed to new plant compounds or altered performance of the transgenic plant. Relevant species groups of non-target organisms comprise other plant species, pollinators, detrivores, herbivores and predators. If no ...
... plant. At this level it must be found and argued which species groups are likely to be exposed to new plant compounds or altered performance of the transgenic plant. Relevant species groups of non-target organisms comprise other plant species, pollinators, detrivores, herbivores and predators. If no ...
The 2005 Vermont Acid Lake Biomonitoring Program Water Quality Division Heather Pembrook (
... the Chironmid Tanytarsus spp. Chironomids, especially those in the families Chironominae and Tanypodinae, inhabit lentic warm water systems and have adapted to a large range of aquatic environments, such as low pH and reduced oxygen conditions that other insects cannot. Because they are free swimmer ...
... the Chironmid Tanytarsus spp. Chironomids, especially those in the families Chironominae and Tanypodinae, inhabit lentic warm water systems and have adapted to a large range of aquatic environments, such as low pH and reduced oxygen conditions that other insects cannot. Because they are free swimmer ...
The Spread, Effect and Mitigation of Bullfrogs
... species revival This study is the general consensus among biologists: bullfrogs are a negative keystone species in an ecosystem ...
... species revival This study is the general consensus among biologists: bullfrogs are a negative keystone species in an ecosystem ...
animal mutualistic interactions
... assumption of being at the close vicinity of an equilibrium. Other models use instead a saturating function to represent the mutualistic interaction (typically a type II functional response; the third term in equations for Model class 2), thus assuming that the effect of an interaction saturates wit ...
... assumption of being at the close vicinity of an equilibrium. Other models use instead a saturating function to represent the mutualistic interaction (typically a type II functional response; the third term in equations for Model class 2), thus assuming that the effect of an interaction saturates wit ...
Succession of Wood-inhabiting Fungal Communities
... The interplay between trees and wood-inhabiting fungi is a key process in forest ecosystems. As trees grow, woody biomass accumulates; when trees die, fungi recycle the carbon and minerals that were fixed during the growth of the trees (Schwarze, 2007). The evolution of woody plants led to the forma ...
... The interplay between trees and wood-inhabiting fungi is a key process in forest ecosystems. As trees grow, woody biomass accumulates; when trees die, fungi recycle the carbon and minerals that were fixed during the growth of the trees (Schwarze, 2007). The evolution of woody plants led to the forma ...
... small amount of primary production occurs below the photic zone in oceans (by chemoautotrophs), sediment ecosystems are fundamentally dependent on imported energy in the form of organic matter to maintain their structure. Mostly, organic matter input is supplied from settling phytoplankton, produced ...
30 years of the endangered species act
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
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.