نتایج جستجو برای: fishing and hunting

تعداد نتایج: 16831426  

Journal: :Acta Borealia 2023

The quantitative archaeological record of the Åland Islands (Finland) indicates a population boom in mid-sixth century CE. Yet number palynological investigations on is limited, resulting knowledge gap anthropogenic landscape modification generated by land use that followed increased population. This article presents results pollen analysis from Lake Lavsböle Träsk central Åland, covering perio...

Journal: :Science 2017
A Benítez-López R Alkemade A M Schipper D J Ingram P A Verweij J A J Eikelboom M A J Huijbregts

Hunting is a major driver of biodiversity loss, but a systematic large-scale estimate of hunting-induced defaunation is lacking. We synthesized 176 studies to quantify hunting-induced declines of mammal and bird populations across the tropics. Bird and mammal abundances declined by 58% (25 to 76%) and by 83% (72 to 90%) in hunted compared with unhunted areas. Bird and mammal populations were de...

2011
Georg Zilkens Christoph Zilkens Jan Zilkens Marcus Jäger

Hunting is a historically constructed cultural act and continues to be a passion and a popular recreational pastime worldwide. Along with a high population density in Europe and a large volume of hunters hunting injuries such as falls from hunting stands continue to occur regularly and are a significant cause of morbidity among hunters. The purpose of this study was to review typical injury pat...

Journal: :Ecography 2021

Many animal populations are subject to hunting or fishing in the wild. Detailed knowledge of demographic parameters (e.g. survival, reproduction) and temporal dynamics such is crucial for sustainable management. Despite their relevance management decisions, structure size exploited often not known, data limited. Recently, joint analysis different types data, as population counts, reproductive c...

2000
Ching-Ta Chuang Yao-Hsien Lee

In the recent years, resource depletion of inshore and coastal fisheries has seriously impacted Taiwan. Local fishing communities’ economic profits in these fisheries have declined and resulted in lower earned incomes for the fishermen. These phenomena have lead many scholars, government agencies and fishing communities to evaluate the optimal number of operating vessels in these fisheries. Thi...

2015
Nathalie van Vliet John Fa Robert Nasi

Despite the fact that sustainability of bushmeat hunting in tropical areas is of major concern for conservation and development practitioners, we still know very little about how to measure sustainability and how to put in place sustainable bushmeat hunting systems. We review the current limits of traditional methods used to investigate sustainability of bushmeat hunting, discuss the need to in...

2016
Martin Leclerc Joanie Van de Walle Andreas Zedrosser Jon E Swenson Fanie Pelletier

Quantifying temporal changes in harvested populations is critical for applied and fundamental research. Unbiased data are required to detect true changes in phenotypic distribution or population size. Because of the difficulty of collecting detailed individual data from wild populations, data from hunting records are often used. Hunting records, however, may not represent a random sample of a p...

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