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Using this collection, Derek Ratcliffe was able to show that DDT was thinning eggshells to such an extent that they simply could not survive. That was a pivotal moment in sort of world conservation because once Derek Ratcliffe had established that DDT was causing this effect on the peregrine population, other groups, other research groups, could go away in the United States and in other areas and try and determine whether the same thing was happening there. And of course, they found that it was. So our entire understanding of the effects of release of certain chemicals into the environment came about because Derek Ratcliffe could come into the museum and actually study what was happening in the population before the chemicals were released. DDT was outlawed in the 1970s, and the potential extinction of the peregrines averted thanks to Derek Ratcliffe and these drawers of eggs. |
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lì yòng zhè gè cáng pǐn, dé lǐ kè léi kè lǐ fū dé chū jié lùn, dī dī tì shǐ dàn ké biàn báo, shǐ de yòu chú nán yǐ cún huó, zhè shì shì jiè zì rán zī yuán bǎo hù lì shǐ xìng de shí kè. yīn wèi yī dàn dé lǐ kè léi kè lǐ fū què dìng, shì dī dī tì yǐng xiǎng le yóu sǔn de cún huó. nà me qí tā tuán duì, qí tā kē yán xiǎo zǔ, jiù kě yǐ dào měi guó hái yǒu qí tā dì qū yàn zhèng qíng kuàng shì fǒu shǔ shí. dāng rán, jié guǒ shì kěn dìng de, yú shì rén men kāi shǐ rèn shi dào, pái fàng mǒu xiē huà xué wù zhì huì wū rǎn huán jìng, jiù yīn wèi dé lǐ kè léi kè lǐ fū jìn rù bó wù guǎn, qiè shí yán jiū, zài huà xué wù zhì pái fàng qián, niǎo lèi de shēng cún zhuàng kuàng, dī dī tì zài 70 nián dài bèi jīn yòng. yóu sǔn de fán yǎn dé yǐ jì xù, dōu dé gǎn xiè dé lǐ kè léi kè lǐ fū, hé guǎn nèi de dàn cáng pǐn. |