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I think they are cute ugly. they are amazing. it is precisely because this has been a continuous study for all those decades that researchers have been able to see and to measure the change in the timing of spring here. the 75 years that we have been studying the tits here, we have seen quite a marked shift in the timing of egg laying. so now they are laying about three weeks earlier than they were in the 19a0s. that is a big shift. exactly, the tits here are actually managing to track the other members of their food chain quite well. so the caterpillars they feed on and the oak trees the caterpillars feed on. so both the caterpillars and the oaks have also shifted their timing earlier, so the whole sort of food chain has shifted earlier in the spring. the woods were bequeathed to oxford university by a wealthy localfamily back in 19a2. since then, they have been the site of dozens of different scientific projects. but the longest running is the great tit study, which chris has been in ....
Divided whether they think they are cute oddly. i think they i are cute oddly. i think they are cute oddly. i think they are cute are cute oddly. i think they are cute ugly. are cute oddly. i think they are cute ugly. they - are cute oddly. i think they are cute ugly. they are i are cute ugly. they are amazing. it is precisely because it has been a continuous study for all those decades that the researchers have been able to see and measure the change in the timing of spring here. 3 5 measure the change in the timing of spring here. 75 years we have been timing of spring here. 75 years we have been studying - timing of spring here. 75 years we have been studying the i we have been studying the biscuits here, we have seen quite a marked shift. the tits. quite a marked shift. the tits. . , . quite a marked shift. the tits. ., , ., , , tits. that is a big shift. exactly- tits. that is a big shift. exactly. the tits. that is a big shift. exactly. the tits - tits. that is a ....
The 75 years that we have been studying the tits here, we have seen quite a marked shift in the timing of egg laying. so now they are laying about three weeks earlier than they were in the 1940s. that is a big shift. exactly, the tits here are actually managing to track the other members of their food chain quite well. so the caterpillars they feed on and the oak trees the caterpillars feed on. so both the caterpillars and the oaks have also shifted their timing earlier, so the whole sort of food chain has shifted earlier in the spring. the woods were bequeathed to oxford university by a wealthy local family back in 1942. since then, they have been the site of dozens of different scientific projects. but the longest running is the great tit study, which chris has been involved in for more than half a century. what has been your involvement with the studies here? i came in 57. and it is changing, but, from year to year, it s ....
Studying the tits here, we have seen quite a marked shift in the timing of egg laying. so now they are laying about three weeks earlier than they were in the 1940s. that is a big shift. exactly, the tits here are actually managing to track the other members of their food chain quite well. so the caterpillars they feed on and the oak trees the caterpillars feed on. so both the caterpillars and the oaks have also shifted their timing earlier, so the whole sort of food chain has shifted earlier in the spring. the woods were bequeathed to oxford university by a wealthy localfamily back in 1942. since then, they have been the site of dozens of different scientific projects. but the longest running is the great tit study, which chris has been involved in for more than half a century. what has been your involvement with the studies here? i came in 57. and it is changing, but from year to year, it s a lovely piece of woodland which is maintaining pretty much the same sort of thing. ....
Been a continuous study for all those decades that researchers have been able to see and to measure the change in the timing of spring here. the 75 years that we have been studying the tits here, we have seen quite a marked shift in the timing of egg laying. so now they are laying about three weeks earlier. than they were in the 1940s. the tits here are actually managing to track the other members of their food chain quite well. so both the caterpillars and the oaks have also shifted their timing earlier, so the whole sort of food chain has shifted earlier in the spring. the woods were bequeathed to oxford university by a wealthy local family back in 1942. since then, they have been the site of dozens of different scientific projects. but the longest running is the great tit study, which chris perrins has been involved in for more than half a century. and what are your reflections on the seasonal shift? that is fine. unless it gets to limits where the trees, or the caterpillars, or the ....