| Titre : |
Human-caused extinction of birds |
| Type de document : |
texte imprimé |
| Auteurs : |
David W. Steadman, Auteur |
| Année de publication : |
1996 |
| Importance : |
p 139-161 |
| Langues : |
Anglais (eng) |
| Catégories : |
SCIENCES DE LA VIE
|
| Mots-clés : |
OISEAU EXTINCTION DES FAUNES PERTE D’HABITAT |
| Résumé : |
Birds have attracted more than their share of our zoological attention due to their conspicuous and appealing being to the human senses of sight. So by necessity, birds have played a prominent role in our understanding of the processes by which species become rare, endangered and extinct. The resulting literature on avian conservation biology has proliferated for decades and now is part of the information explosion with all of its benefits and frustrations.
So this chapter discusses extinction, the final stage of endangerment. Extinction really is forever, in spite of what we are led to believe in dinosaur movies. Extinction is occuring today at an unprecedented rates across a broad range of terrestrial and aquatic habitats. Because species richness of birds is so high in tropical forests, the single most prolific cause of endangerment and extinction in birds is the destruction of tropical forests. Deforestation and other types of habitat loss also deplete avian communities in temperate and high latitude areas which typically have fewer species of birds to lose than tropical areas.
We have no evidence that any of the species of birds now endangered or that have gone extinct in recent millenia would be in their predicament if not for human activity. While extinction does occur naturally, human impact has increased rates of extinction by orders of magnitudes over background rates and therefore is the only significant cause of our current biodiversity crisis.
|
| Numéro du document : |
A/BIO |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
BIOLOGIE |
| Bull2 (Theme secondaire) : |
BIOLOGIE GENERALE |
Human-caused extinction of birds [texte imprimé] / David W. Steadman, Auteur . - 1996 . - p 139-161. Langues : Anglais ( eng)
| Catégories : |
SCIENCES DE LA VIE
|
| Mots-clés : |
OISEAU EXTINCTION DES FAUNES PERTE D’HABITAT |
| Résumé : |
Birds have attracted more than their share of our zoological attention due to their conspicuous and appealing being to the human senses of sight. So by necessity, birds have played a prominent role in our understanding of the processes by which species become rare, endangered and extinct. The resulting literature on avian conservation biology has proliferated for decades and now is part of the information explosion with all of its benefits and frustrations.
So this chapter discusses extinction, the final stage of endangerment. Extinction really is forever, in spite of what we are led to believe in dinosaur movies. Extinction is occuring today at an unprecedented rates across a broad range of terrestrial and aquatic habitats. Because species richness of birds is so high in tropical forests, the single most prolific cause of endangerment and extinction in birds is the destruction of tropical forests. Deforestation and other types of habitat loss also deplete avian communities in temperate and high latitude areas which typically have fewer species of birds to lose than tropical areas.
We have no evidence that any of the species of birds now endangered or that have gone extinct in recent millenia would be in their predicament if not for human activity. While extinction does occur naturally, human impact has increased rates of extinction by orders of magnitudes over background rates and therefore is the only significant cause of our current biodiversity crisis.
|
| Numéro du document : |
A/BIO |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
BIOLOGIE |
| Bull2 (Theme secondaire) : |
BIOLOGIE GENERALE |
|  |
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