Results 61 to 70 of about 23,242 (234)

A Delivery Approach Modeling for Urban Freight Restocking [PDF]

open access: yesJournal of Civil Engineering and Architecture, 2012
This paper proposes a modeling system developed in order to analyze the urban freight transport and logistics within urban and metropolitan areas. A review of models developed to simulate this segment of mobility is also reported. The review analysis highlights the limits of models for the ex-ante assessment of city logistics measures.
NUZZOLO, AGOSTINO   +2 more
openaire   +3 more sources

The coarse fishes of Britain [PDF]

open access: yes, 1947
The need for research upon the coarse fishes of Britain, questions of the breeding and rearing of large numbers of young fish, more especially roach, was established back in 1937.
Hartley, P.H.T.
core  

Acclimatization length and post‐release spatial cohesion in translocated Griffon Vultures (Gyps fulvus)

open access: yesIbis, EarlyView.
Translocations are often used in the conservation of large raptors, including Old World vultures. Different release methods are usually assessed by comparing the movement patterns and survival of released individuals. However, these approaches fail to capture the gregarious behaviour of many vulture species.
Jacopo Cerri   +11 more
wiley   +1 more source

Middlemen: the visible market makers [PDF]

open access: yes, 2006
This paper presents a search-theoretic model where middlemen can emerge endogenously to intermediate between ex ante homogeneous buyers and sellers in the presence of coordination frictions.
Watanabe Watanabe, Makoto
core   +5 more sources

Distinct matrilines in the panmictic population of the European eel Anguilla anguilla?

open access: yesAquatic Living Resources, 2017
Determining the genetic population structure and intraspecific evolution of species is important for efficient management. Here we investigated 394 sequences of the mtDNA cyt b of the critically endangered European eel, Anguilla anguilla.
Ragauskas Adomas   +2 more
doaj   +1 more source

Urban peatlands can harbour diverse insect communities but depend on appropriate habitat management

open access: yesInsect Conservation and Diversity, EarlyView.
Urban peatlands can support high insect diversity, including endangered species and peat bog specialists. Flower diversity boosts endangered species, while succession cover reduces overall insect richness—but bog condition and urbanization showed no major effects.
Nadja Pernat   +3 more
wiley   +1 more source

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

open access: yesJournal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck   +5 more
wiley   +1 more source

High Diversity Unveiled by the First Genetic Survey on Wild and Captive Barbary Partridge (Alectoris barbara) from Morocco

open access: yesDiversity
Characterizing genetic diversity and structure is paramount in wildlife conservation management. Surprisingly, however, there are species that, despite being intensively managed, are largely overlooked in terms of genetic makeup.
Laila Sabrate   +3 more
doaj   +1 more source

Wild rabbit restocking: Suitable acclimation conditions foster adaptive behaviour and improve survival of captive reared rabbits

open access: yesWorld Rabbit Science, 2017
Wild rabbit is a very important species in the Mediterranean region. Its relevance is both ecological, being a keystone species —prey for several predators— and economic, as it is the most important and the most managed small game species among mammals ...
R. D. Machado   +3 more
doaj   +1 more source

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