筛选
科学数据
统计数据
共检索到380条 ,权限内显示50条;
Data from: Territory size decreases minimally with increasing food abundance in stream salmonids: implications for population regulation
- 负责人:
- Grant, James
- 关键词:
- contiguous territories density limitation population density stream salmonids territoriality elastic disc model
- DOI:
- doi:10.5061/dryad.37hh4
- 摘要:
- educing territory size will be inefficient; a 20-fold increase in food abundance would be required to double population density. Our analysis may also have implications
Data from: NDVI is not reliable as a surrogate of forage abundance for a large herbivore in tropical forest habitat
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.7r61gp6
- 摘要:
- measure of food abundance in any vegetation category partly because of (a) small to moderate proportional abundances of food species relative to the total
Data from: Relating trophic resources to community structure: a predictive index of food availability
- 负责人:
- DOI:
- doi:10.5061/dryad.nt91j
- 摘要:
- . Nevertheless, assessment of the actual abundance of food items available for individual trophic groups has been constrained by differences in method
Data from: Age-specific offspring mortality economically tracks food abundance in a piscivorous seabird
- 负责人:
- DOI:
- doi:10.5061/dryad.ck1rb1g
- 摘要:
- ), the main food source. We found mortality directly after hatching (Gompertz baseline mortality) to be high and to increase with decreasing herring abundance
Data from: Experimental reduction of plant abundance changes interaction frequency of a tri-trophic micro-food web: contrasting responses of gene
- 负责人:
- DOI:
- doi:10.5061/dryad.nd57201
- 摘要:
- 1. Species abundance is vulnerable to climate change and anthropogenic impact. Although numerous studies have examined the food web response
Data from: Integrating abundance and diet data to improve inferences of food web dynamics
- 负责人:
- DOI:
- doi:10.5061/dryad.5q136q2
- 摘要:
- 1. Both population abundances and chemical tracers are useful tools for studying consumer-resource interactions. Food web mod
Data from: Food supplementation and predation risk in harsh climate: interactive effects on abundance and body condition of tit species
- 负责人:
- Morosinotto, Chiara
- 关键词:
- starvation-predation trade-off tit community strategic regulation of body mass Pygmy owl Great tit Blue tit Willow tit Crested tit Coal tit
- DOI:
- doi:10.5061/dryad.q0qq3
- 摘要:
- . We studied the effects of food supplementation and natural predation risk imposed by pygmy owls Glaucidium passerinum on the abundance and fat reserves of tit
Data from: An empirical and mechanistic explanation of abundance-occupancy relationships for a critically endangered nomadic migrant
- 负责人:
- Webb, Matthew H.
- 关键词:
- Conservation biology Ecology: landscape Ecology: spatial Geographic ranges Interactions: plant/animal Macroecology Modeling: spatial swift parrot
- DOI:
- doi:10.5061/dryad.1g511q5
- 摘要:
- relies on dynamic pulses in food availability to breed. We predicted a negative temporal relationship, where local mean abundances increase when the numb
Data from: Luck in food-finding affects individual performance and population trajectories
- 负责人:
- Wilson, Rory P.
- 关键词:
- feeding rates
- DOI:
- doi:10.5061/dryad.g7k8j6v
- 摘要:
- of the population failing to accrue the necessary resources for their young before they starve, and because even small changes in food abundance can affect
Data from: Effects of food abundance and early clutch predation on reproductive timing in a high Arctic shorebird exposed to advance
- 负责人:
- DOI:
- doi:10.5061/dryad.3dk6r
- 摘要:
- d not affect chick growth, but the interaction of the annual width and height of the peak in food abundance did. Chicks grew especially better in yea