Environmental patterns and ecological correlates of range size among...

The Botanical Review;  January 1, 2002 ;     700+ words ......relationship of such species attributes to range size. In Bolivia and Peru, Ibisch (1996) and...examines the relationship of bromeliad range size to environmental factors such as elevation...heterogeneity. Second, it correlates bromeliad range size to species attributes such as ...

Effects of a forested riparian peninsula on mean home range size of the...

Georgia Journal of Science;  December 22, 2002 ;     700+ words ......niche overlap impact small mammal home range size. We selected two small mammal species...to investigate differences in home range size due to landscape geometry and habitat...O. nuttalli would have a smaller home range size than P. leucopus, since O. nuttalli has...

Home range size in Middle Pleistocene China and human dispersal patterns...

Asian Perspectives: the Journal of Archaeology for Asia and the Pacific;  September 22, 2004 ;     700+ words ...THE ISSUE OF HOME RANGE SIZE IN THE MIDDLE PLEISTOCENE is a topic...of an animal or human. Hominid home range size can be studied by using different...5-km radius, indicating a small home range size in the Middle Pleistocene. However...

Comparative spring habitat and food use by two Arctic nesting geese.

Wilson Bulletin;  June 1, 1999 ;     700+ words ......nest initiation is independent of food availability on the nesting ground (Raveling 1978...Gauthier and Tardif 1991]. In this case, food availability on the nesting ground can affect...within populations (Raveling 1978). Food availability in the Arctic in spring was traditionally...

Geographic range and genus longevity of late Paleozoic brachiopods

Paleobiology;  October 1, 2007 ;     700+ words ...Abstract.- Geographic range size is one of the few traits that promoted...between genus longevity and geographic range size, which is robust to several potential...of genus longevity and geographic range size had a profound consequence for the...

Emerging-market indicators.(economic statistics for emerging nations;...

The Economist (US);  February 3, 1996 ;     395 words ......IFPRI), Africans can expect their food availability to increase only slightly in the...agricultural productivity, average food availability in Africa will increase to only 2...products would not help. Africa's food availability would rise to only 2,093 kilocalories...

Home Range and Habitat Use of Male Rafinesque's Big-eared Bats...

The American Midland Naturalist;  April 1, 2001 ;     700+ words ...ABSTRACT.--We examined home range size and habitat use of four reproductively...sunset and 2 h before sunrise. Mean home range size calculated using the adaptive kernel...method they reported an average home range size of 160.6 ha (range 61.6-225.3 ha). Little...

Relationships of ruffed grouse (Bonasa umbellus) home range size to...

The American Midland Naturalist;  July 1, 2003 ;     700+ words ......landscape-level habitat types influenced home range size of ruffed grouse (Bonasa umbllus) in...used multiple regression to relate home range size to landscape metrics. The amount of core...edge (negative relation) predicted home range size (R^sub adj^^sup 2^= 0.617,P < 0.01...

Energetic constraints and the relationship between body size and home...

Ecology;  January 1, 1999 ;     700+ words ......review on the relationship between home range size and body size in mammals concluded that...the relationship between geographic range size and adult body size in North American...nonlinear scaling relationships. Home range size varies with body size and is influenced...

THE EFFECT OF CHANGES IN AVAILABILITY ON FOOD SELECTION AT DIFFERENT...

The Psychological Record;  June 22, 2000 ;     700+ words ......investigated the effect of a change in food availability on selection between two food items...showed that the effect of a change in food availability on selectivity was greater when pigeons...is qualified by considerations of food availability and deprivation. In the natural ...

Factors affecting home range size and movements of post-fledging grassland...

The Wilson Journal of Ornithology;  March 1, 2008 ;     700+ words ......site-selection cues associated with food availability or protection from predators...2000). We describe home range size and daily movement patterns...We were interested in home range size and daily movement patterns...species, (2) estimate home range size, and (3) model ...

Effect of dairy farm management on Swallow Hirundo rustica abundance in...

Bird Study;  July 1, 2007 ;     700+ words ......examining three factors: farm buildings, food availability and farmer attitudes to Swallows...type of farm buildings recorded, food availability assessed and the farmer's attitude...there any significant difference in food availability or farmer attitude between the two...

SAARC nations adopt Colombo Statement on food security

Xinhua News Agency;  August 3, 2008 ;     304 words ......15th SAARC Summit, vowing to ensure food availability in the region. The SAARC leaders...emerging global situation of reduced food availability and worldwide rise in food prices...international community to ensure food availability and nutrition security in South Asia...

PLANT QUALITY AND SPIDER PREDATION AFFECTS GRASSHOPPERS (ACRIDIDAE):...

Ecology;  January 1, 2000 ;     700+ words ......determine whether the combined effects of food availability and spider predation on mortality...vs. compensatory responses. Both food availability and predation risk contributed to...resulted from the combined effects of food availability and predation on population size...

Effects of food supplementation on the timing of nest initiation in belted...

Ecology;  December 1, 1997 ;     700+ words ......reproduction have focused on the effects of food availability. Lack proposed that birds use food availability as a proximate cue to time nesting...Chloroceryle amazona) was affected by food availability. Because most food supplementation...