ENERGY, SPECIES RICHNESS, AND HUMAN POPULATION SIZE: CONSERVATION IMPLICATIONS AT A NATIONAL SCALE

AbstractMountains are rugged structures in the landscape that are difficult to delineate. Given that they host an overproportional fraction of biodiversity of high ecological and conservational value, conventions on what is mountainous and what not are in need. This short communication aims at explaining the differences among various popular mountain definitions. Defining mountainous terrain is key for global assessments of plant species richness in mountains and their likely responses to climatic change, as well as for assessing the human population density in and around mountainous terrain.

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Bird and mammal conservation in Gaoligongshan Region and Jingdong County, Yunnan, China: patterns of species richness and nature reserves

Oryx ◽

10.1046/j.1365-3008.2000.00131.x ◽

2000 ◽

Vol 34 (4) ◽

pp. 275-286 ◽

Cited By ~ 6

Author(s):

Daoying Lan ◽

Robin Dunbar

Keyword(s):

Species Richness ◽

Population Density ◽

Human Population ◽

Yunnan Province ◽

Nature Reserve ◽

Present Situation ◽

Primary Forest ◽

Mammal Conservation ◽

Latitudinal Patterns ◽

Conservation Of Biodiversity

AbstractElevational and latitudinal patterns of species richness for birds and mammals were compared with human population density in relation to nature reserve designation in two areas of Yunnan Province, China. Results suggest that species richness is not the same for the two areas. In Gaoligongshan Region, species richness is inversely correlated with elevation and altitude, while reserve designation is positively correlated with elevation and latitude. In Jingdong County, reserve designations are positively correlated with elevation, but species richness shows no clear trends. In general, the present situation is strongly influenced by human activities. It appears that reserve designation is mismatched with species richness in Gaoligongshan Region, while there is a better fit between the two in Jingdong County. In both areas, however, it appeared that reserves were located primarily in order to reduce conflict with humans rather than to maximize conservation of biodiversity, probably because humans were responsible for forest—especially primary forest—destruction and degradation in the low-lying areas.

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Plasma vitellogenin in male teleost fish from 43 rivers worldwide is correlated with upstream human population size

Environmental Pollution ◽

10.1016/j.envpol.2010.07.017 ◽

2010 ◽

Vol 158 (10) ◽

pp. 3279-3284 ◽

Cited By ~ 31

Author(s):

Jean-Pierre W. Desforges ◽

Brendan D.L. Peachey ◽

Pauline M. Sanderson ◽

Paul A. White ◽

Jules M. Blais

Keyword(s):

Population Size ◽

Teleost Fish ◽

Human Population

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A semi-hybrid model for malaria with limited superinfection

Advances in Applied Probability ◽

10.1017/s0001867800008788 ◽

1998 ◽

Vol 30 (04) ◽

pp. 1027-1057 ◽

Cited By ~ 1

Author(s):

Philippe Picard

Keyword(s):

Stochastic Model ◽

Population Size ◽

Hybrid Model ◽

Human Population ◽

Threshold Level ◽

The Other ◽

The Difference ◽

The One

Modelling malaria with consistency necessitates the introduction of at least two families of interconnected processes. Even in a Markovian context the simplest fully stochastic model is intractable and is usually transformed into a hybrid model, by supposing that these two families are stochastically independent and linked only through two deterministic connections. A model closer to the fully stochastic model is presented here, where one of the two families is subordinated to the other and just a unique deterministic connection is required. For this model a threshold theorem can be proved but the threshold level is not the one obtained in a hybrid model. The difference disappears only when the human population size approaches infinity.

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Evaluation of dog population in an urban area of Southeastern Brazil

Revista de Saúde Pública ◽

10.1590/s0034-89101997000300013 ◽

1997 ◽

Vol 31 (3) ◽

pp. 308-309 ◽

Cited By ~ 10

Author(s):

Cáris M. Nunes ◽

Dejanira de A. Martines ◽

Stélios Fikaris ◽

Luzia H. Queiróz

Keyword(s):

Population Size ◽

Urban Area ◽

Human Population ◽

Total Population ◽

Southeastern Brazil ◽

Control Programs ◽

Paulo State ◽

Vaccination Campaigns ◽

Rabies Vaccination ◽

Size And Structure

Planning control programs, for diseases such as rabies requires information on the size and structure of the dog and cat population. In order to evaluate the dog population of the urban area of Araçatuba city, S. Paulo State, Brazil, a survey was conducted using a questionnaire to interview members of households. Eighty-eight districts were visited (37,778 houses) and the interview was possible at 77.93% of these. Human population size evaluated was 113,157 inhabitants. Houses that owned animals represented 55.2%, 26,926 of the animals concerned were dogs and 5,755 were cats. Of the dogs, 56.64% were 1-4 year olds and males represented 56.2% of the total population. Dog: person ratio was estimated at 2.8 dogs to every 10 persons, almost 3 times the ratio hitherto estimated and used in the planning of rabies vaccination campaigns.

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