- Extinction debt
Origins in metapopulation models The term extinction debt was first used in 1994 in a paper ... than the metapopulation models described above. It predicts that the abundance and distribution of species ... mechanisms than those in metapopulation based models, extinction debts measured in this way may not conform with metapopulation models predictions. ref name Loehle1996 The relationship between habitat ... more details
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- Erigeron rhizomatus
taxobox image Erigeron rhizomatus lg.jpg status G2 status system TNC regnum Plantae unranked divisio Angiosperms unranked classis Eudicots unranked ordo Asterids ordo Asterales familia Asteraceae tribus Astereae genus Erigeron species E. rhizomatus binomial Erigeron rhizomatus binomial authority Arthur Cronquist Cronquist Erigeron rhizomatus is a rare species of flowering plant in the Asteraceae aster family known by the common names Zuni fleabane and rhizome fleabane . It is native to western New Mexico and eastern Arizona in the United States. It is a federally listed threatened species. The plant was thought to be a New Mexico Endemism endemic until 1999, when some plants were found over the border in Arizona. ref name tnc http www.natureserve.org explorer servlet NatureServe?searchName Erigeron rhizomatus Erigeron rhizomatus . The Nature Conservancy. ref These are located in the Chuska Mountains in the Navajo Nation , and they occur in 15 populations that make up one metapopulation . ref name five USFWS. http ecos.fws.gov docs five year review doc1153.pdf Erigeron rhizomatus Five year Review. September 2007. ref The two previously known metapopulations in New Mexico are composed of 24 populations in the Zuni Mountains Zuni , Datil Mountains Datil , and Sawtooth Mountains New Mexico Sawtooth Mountains . ref name five These three metapopulations are geographically isolated from each other but are still similar in morphology biology morphology . ref name five Characteristics This is a perennial herb with a rhizome and large network of clumped, fibrous roots topped with a branching caudex . It produces one or more erect, rough haired stems up to about 45 centimeters in maximum height. The leaves are lance shaped near the base of the plant and much narrower and linear in shape toward the top of the stem. The inflorescence is usually a single Head botany flower head at the end of the stem which is lined with white or purple tinged ray florets each under a centimeter l ... more details
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- Occupancy-abundance relationship
IFDs poorly described species distributions. Metapopulation dynamics In a classical metapopulation ... in a metapopulation can generate a positive intraspecific O A relationship. However, there is currently debate regarding how many populations actually fit a classical metapopulation model ref ... al 2000 Gonzales, A., J.H. Lawton, F.S. Gilbert, T.M. Blackburn, and I. Evans Freke. 1998. Metapopulation ... 2047. ref metapopulation dynamics were found to maintain the interspecific O A relationship, however ... of dispersal, indicating that a more general set of extinction and colonization processes than metapopulation ... more details
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- Mountain Pygmy Possum
em Burramys parvus em Broom 1986 1998 implications for metapopulation conservation and ski resorts ... more details
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- California Gnatcatcher
Species Act is on hold pending court ordered review. This species is especially vulnerable as a metapopulation ... more details
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- Michael J. Wade
For others of this name Michael Wade disambiguation File MJWade.jpg thumb Michael J. Wade, by the The Lakes, Copenhagen Copenhagen lakes , summer 2010 Michael J. Wade is a distinguished professor of biology http www.bio.indiana.edu index.shtml at Indiana University Bloomington . Since 2009 he has been the Associate Vice Provost for Faculty and Academic Affairs at Indiana University. He is also affiliated faculty in the following departments and centers at Indiana University Center for the Integrative Study of Animal Behavior http www.indiana.edu animal CISAB , the Cognitive Science Program http www.cogs.indiana.edu , and the Department of History and Philosophy of Science http www.indiana.edu hpscdept . Academic career Wade was a professor at University of Chicago from 1975 to 1998 Assistant Professor, Department of Biology, 1975 1981 Associate Professor, Department of Biology, 1981 1986 Professor, Department of Ecology and Evolution http pondside.uchicago.edu ecol evol , 1986 1998 Chair, Department of Ecology and Evolution, 1991 1998 . He received his PhD from University of Chicago in 1975, under the joint tutelage of the ecology ecologist Thomas Park and the theoretical population genetics population geneticist , Montgomery Slatkin now at University of California, Berkeley . His doctoral committee included the cicada ecologist, Monty Lloyd, the laboratory ecologist, David Byron Mertz, and the anuran systematics systematist , Robert Inger. Park arranged for him to meet and discuss his doctoral research with Sewall Wright on several occasions. His dissertation, and subsequent research program, focused on the evolution, ecology, and genetics of flour beetles of the genus flour beetle Tribolium . At the earliest stages of his graduate career, he had been interested in the ecology of frogs in vernal ponds in Chicago . Research Two central interests of Wade s research program are Metapopulation population structure and epistasis . Mechanisms and interactions at the popu ... more details
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- Lounès Chikhi
of genetic structure in the largest remaining metapopulation of the endangered golden brown ... more details
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- Calochortus coxii
make up one single metapopulation . ref name cons The habitat is meadows and the ecotone between ... more details
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- Duncan J. Watts
in a hierarchical metapopulation model journal Proceedings of the National Academy of Sciences ... more details
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- Portsdown Hill
the largest metapopulation of the Small Blue in the UK. Portsdown also gave its name to an Army estate ... more details
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- Saint Francis' Satyr
Taxobox name Saint Francis satyr image SFS individual.jpg regnum Animal ia phylum Arthropod a classis Insect a ordo Lepidoptera familia Nymphalidae genus Neonympha species Neonympha mitchellii N. mitchellii subspecies N. m. francisi trinomial Neonympha mitchellii francisi The Saint Francis satyr Neonympha mitchellii francisci is an endangered butterfly found only in North Carolina, USA. First discovered in 1983, it was officially described in 1989 and listed as a federally endangered species by the US Fish and Wildlife Service in 1994. It is a subspecies of N. mitchellii and is only known from a single metapopulation on Fort Bragg North Carolina Fort Bragg military base in Hoke and Cumberland Counties. The other subspecies, Mitchell s Satyr Neonympha mitchellii mitchellii , is also federally endangered. Life History File SFS mating pair.jpg thumb left Male and female St. Francis satyr mating The St. Francis satyr is a small, dark brown butterfly with distinguishing white and yellow spots along the lower surfaces of both upper and lower wings. Females appear slightly larger and lighter brown than males. The average wing span is 34 44 mm. Adults live an average of 3 4 days. The species is bivoltine, with the first flight period occurring from late May to early June, and the second from late July to mid August. Females deposit eggs individually or in small clusters that emerge as larvae in 7 10 days. Caterpillars that emerge in early summer first flight period pupate after two months, while those that emerge in late summer second flight period overwinter and pupate the following spring. Pupation may take up to two weeks. The larval host plant is currently unknown, although it is most likely a sedge species in the Carex genus, such as C. mitchelliana or C. lurida . Distribution The known population size of St. Francis satyr has ranged between 300 1700 adult individuals since regular monitoring began in 2002. The population consists of a number of highly fragmented ... more details
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- Niche microdifferentiation
refimprove date April 2012 Niche Microdifferentiation is the process a species undergoes to reach genetic diversity within that species it is the process by which an ecotype is created. This process is regulated by various environmental influences whether they be Morphology biology morphological , spatial, and or temporal. This means that a trait of one organism in one area is not advantageous for the same species in a different location the trait that alters the environment in a manner that is favorable to growth tends to be reinforced and this positive feedback can further, to a certain extent, modify the selection pressure on itself . ref cite web url http www.sciencedirect.com science article pii S0304380004001103 title Ecological Modelling Metapopulation dynamics and distribution, and environmental heterogeneity induced by niche construction publisher ScienceDirect.com date accessdate 2012 04 14 ref For example, a species of moth which is white and lives in an area where tree bark is stripped and tree color is white will more easily survive than a white moth in a different location where trees are moss covered and green. This leads to adaptations that allow the species to exist in a slightly different environment. Organisms within the same species can undergo phenotypic and genotypic changes due to niche microdifferentiation. Conspecific organisms can vary in color, size, diet, behavior, and morphology biology morphology due to differences in environmental pressures. Related topics include epigenetics , niche differentiation , and evolutionary biology . Examples of Niche Microdifferentiation Humans The Iberian Peninsula is populated by peoples of various ancestral background. By studying mitochondrial DNA , it was observed that the Basque regions were populated by a Homogenous genetic microdifferentiation whereas most other parts of the region have a more Heterogeneous genetic variation. This indicates that the Basque Country was isolated resulting in limited g ... more details
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- Phymatopus
Ling Calluna br Mobility Mobility is defined as the ability to migrate . According to the metapopulation ... more details
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- Timarcha lugens
for the analysis of metapopulation ecology. Ecology 86 3264 3271. Gonz lez Meg as, A., J.M. G mez ... more details
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- Population dynamics of fisheries
will decrease. Metapopulation Main Metapopulation A metapopulation is a group of spatially ... for biological control. Bulletin of the Entomological Society of America, 15, 237 240 ref A metapopulation ... more details
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- Savannah River Ecology Laboratory
outdoor enclosures for conducting field observations and metapopulation studies on a variety ... more details
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- Metamerism (biology)
at least resolved. ref name White 1979 White, J. 1979. The plant as a metapopulation ... more details
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- Sinai Baton Blue butterfly
between patches it qualifies under the definition of a metapopulation . The patch network is likely ... more details
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- Ecology
year 1992 doi 10.2307 1940005 ref harv jstor 1940005 ref Metapopulations and migration Main Metapopulation See also Animal migration Populations are also studied and modeled according to the metapopulation concept. The metapopulation concept was introduced in 1969 ref name Levins69 Cite journal last ... Questions in Biology&printsec frontcover isbn 9780821811528 ref Rp 105 Metapopulation ecology is another ... name Smith05 Cite journal last Smith first M. A. last2 Green first2 D. M. title Dispersal and the metapopulation ... ref harv ref Metapopulation research simplifies the landscape into patches of varying levels of quality. ref name Hanski98 Cite journal last Hanski first I. title Metapopulation dynamics journal Nature ... thumbnail&resnum 2&ved 0CDEQ6wEwAQ v onepage&q&f false ref In metapopulation terminology there are emigrants ... rescued by an adjacent source patch or environmental conditions become more favorable. Metapopulation ... metapopulation structure evolves from year to year, where some patches are sinks in dry years ... and field study field studies to explain metapopulation structure. ref name Hanski04 Cite book editor ... more details
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- Bay Checkerspot
grazing brings help to the threatened checkerspot. In a large metapopulation south of San Jose ... one of the centers of the subspecies metapopulation in Santa Clara County. The USFWS Recovery Plan ... Santa Clara County s metapopulation of the butterfly. The Recovery Plan, from the USFWS, considered ... more details
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- Microfluidics
. ref name Herold2 Evolutionary biology File MHPs.jpg thumb Three Micro Habitat Patches Metapopulation ... landscapes allows for the study of adapting bacterial cells in a metapopulation system ... more details
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- Entomopathogenic nematode
may persist as metapopulation s, in which local population fragments are highly vulnerable to extinction, and fluctuate asynchronously Lewis et al. 1998 . The metapopulation as a whole can persist ... more details
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- Theoretical ecology
Metapopulations See also Metapopulation Patch dynamics Spatial analysis of ecological systems often ...&dq Metapopulation ecology&ots gAWh tHQ4H&sig 1h2jdIvLZTZ881Dfm7oeFF8cfGU v onepage&q&f false Metapopulation ... of extinction . ref cite journal author Hanski I, Gilpin M year 1991 title Metapopulation dynamics ... more details
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- Index of biology articles
metaphase metapopulation metazoa Michaelis Menten kinetics microbe microbiology microevolution ... more details
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- Palos Verdes Blue
. Metapopulation modeling would seem like an appropriate choice for the Palos Verdes blue, but there is a lack ... more details
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